./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/quick_sort_split_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_36c5989c-913f-4e0a-bffa-dd3f2054a5eb/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_36c5989c-913f-4e0a-bffa-dd3f2054a5eb/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_36c5989c-913f-4e0a-bffa-dd3f2054a5eb/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_36c5989c-913f-4e0a-bffa-dd3f2054a5eb/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/heap-data/quick_sort_split_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_36c5989c-913f-4e0a-bffa-dd3f2054a5eb/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_36c5989c-913f-4e0a-bffa-dd3f2054a5eb/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9a9cf4ff5024af4bea046a077f81b398a029046b ......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 03:01:01,854 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:01:01,855 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:01:01,861 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:01:01,861 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:01:01,861 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:01:01,862 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:01:01,863 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:01:01,864 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:01:01,865 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:01:01,865 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:01:01,866 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:01:01,866 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:01:01,867 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:01:01,868 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:01:01,869 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:01:01,869 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:01:01,870 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:01:01,872 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:01:01,872 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:01:01,873 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:01:01,874 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:01:01,876 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:01:01,876 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:01:01,876 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:01:01,877 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:01:01,877 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:01:01,878 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:01:01,878 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:01:01,879 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:01:01,879 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:01:01,879 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:01:01,879 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:01:01,879 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:01:01,880 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:01:01,880 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:01:01,880 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_36c5989c-913f-4e0a-bffa-dd3f2054a5eb/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 03:01:01,890 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:01:01,890 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:01:01,891 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:01:01,891 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 03:01:01,892 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 03:01:01,892 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 03:01:01,892 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 03:01:01,892 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:01:01,892 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:01:01,892 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 03:01:01,892 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:01:01,892 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:01:01,892 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:01:01,893 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:01:01,893 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:01:01,893 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:01:01,893 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:01:01,893 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:01:01,893 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:01:01,893 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:01:01,893 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 03:01:01,894 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:01:01,894 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 03:01:01,894 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:01:01,894 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:01:01,894 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:01:01,894 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:01:01,894 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 03:01:01,894 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:01:01,894 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 03:01:01,894 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_36c5989c-913f-4e0a-bffa-dd3f2054a5eb/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(G ! call(__VERIFIER_error())) ) 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 -> 9a9cf4ff5024af4bea046a077f81b398a029046b [2018-11-23 03:01:01,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:01:01,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:01:01,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:01:01,931 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:01:01,931 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:01:01,932 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_36c5989c-913f-4e0a-bffa-dd3f2054a5eb/bin-2019/uautomizer/../../sv-benchmarks/c/heap-data/quick_sort_split_true-unreach-call.i [2018-11-23 03:01:01,967 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_36c5989c-913f-4e0a-bffa-dd3f2054a5eb/bin-2019/uautomizer/data/72d2e0fa3/4b2bcc095bdb4e0d9d8f85a0a4b9551e/FLAGcf053a8ee [2018-11-23 03:01:02,398 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:01:02,398 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_36c5989c-913f-4e0a-bffa-dd3f2054a5eb/sv-benchmarks/c/heap-data/quick_sort_split_true-unreach-call.i [2018-11-23 03:01:02,405 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_36c5989c-913f-4e0a-bffa-dd3f2054a5eb/bin-2019/uautomizer/data/72d2e0fa3/4b2bcc095bdb4e0d9d8f85a0a4b9551e/FLAGcf053a8ee [2018-11-23 03:01:02,416 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_36c5989c-913f-4e0a-bffa-dd3f2054a5eb/bin-2019/uautomizer/data/72d2e0fa3/4b2bcc095bdb4e0d9d8f85a0a4b9551e [2018-11-23 03:01:02,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:01:02,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:01:02,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:01:02,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:01:02,423 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:01:02,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:01:02" (1/1) ... [2018-11-23 03:01:02,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@556bc421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:02, skipping insertion in model container [2018-11-23 03:01:02,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:01:02" (1/1) ... [2018-11-23 03:01:02,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:01:02,465 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:01:02,654 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:01:02,662 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:01:02,741 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:01:02,766 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:01:02,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:02 WrapperNode [2018-11-23 03:01:02,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:01:02,766 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:01:02,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:01:02,767 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:01:02,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:02" (1/1) ... [2018-11-23 03:01:02,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:02" (1/1) ... [2018-11-23 03:01:02,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:01:02,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:01:02,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:01:02,789 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:01:02,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:02" (1/1) ... [2018-11-23 03:01:02,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:02" (1/1) ... [2018-11-23 03:01:02,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:02" (1/1) ... [2018-11-23 03:01:02,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:02" (1/1) ... [2018-11-23 03:01:02,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:02" (1/1) ... [2018-11-23 03:01:02,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:02" (1/1) ... [2018-11-23 03:01:02,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:02" (1/1) ... [2018-11-23 03:01:02,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:01:02,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:01:02,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:01:02,809 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:01:02,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_36c5989c-913f-4e0a-bffa-dd3f2054a5eb/bin-2019/uautomizer/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 [2018-11-23 03:01:02,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 03:01:02,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 03:01:02,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 03:01:02,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 03:01:02,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 03:01:02,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 03:01:02,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 03:01:02,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 03:01:02,844 INFO L130 BoogieDeclarations]: Found specification of procedure create_list [2018-11-23 03:01:02,844 INFO L138 BoogieDeclarations]: Found implementation of procedure create_list [2018-11-23 03:01:02,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 03:01:02,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 03:01:02,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 03:01:02,845 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_list [2018-11-23 03:01:02,845 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_list [2018-11-23 03:01:02,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:01:02,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:01:03,051 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:01:03,051 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 03:01:03,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:01:03 BoogieIcfgContainer [2018-11-23 03:01:03,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:01:03,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 03:01:03,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 03:01:03,055 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 03:01:03,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:01:02" (1/3) ... [2018-11-23 03:01:03,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5476233c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:01:03, skipping insertion in model container [2018-11-23 03:01:03,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:01:02" (2/3) ... [2018-11-23 03:01:03,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5476233c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:01:03, skipping insertion in model container [2018-11-23 03:01:03,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:01:03" (3/3) ... [2018-11-23 03:01:03,058 INFO L112 eAbstractionObserver]: Analyzing ICFG quick_sort_split_true-unreach-call.i [2018-11-23 03:01:03,064 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 03:01:03,068 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-23 03:01:03,078 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-23 03:01:03,099 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 03:01:03,100 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 03:01:03,100 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 03:01:03,100 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 03:01:03,100 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 03:01:03,100 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 03:01:03,100 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 03:01:03,100 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 03:01:03,100 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 03:01:03,111 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-23 03:01:03,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 03:01:03,116 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:01:03,117 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:01:03,119 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:01:03,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:01:03,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1030563642, now seen corresponding path program 1 times [2018-11-23 03:01:03,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:01:03,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:01:03,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:01:03,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:01:03,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:01:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:01:03,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:01:03,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:01:03,218 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 03:01:03,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 03:01:03,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 03:01:03,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 03:01:03,229 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-11-23 03:01:03,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:01:03,241 INFO L93 Difference]: Finished difference Result 57 states and 77 transitions. [2018-11-23 03:01:03,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 03:01:03,242 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-11-23 03:01:03,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:01:03,252 INFO L225 Difference]: With dead ends: 57 [2018-11-23 03:01:03,252 INFO L226 Difference]: Without dead ends: 32 [2018-11-23 03:01:03,255 INFO L631 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 [2018-11-23 03:01:03,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-23 03:01:03,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-23 03:01:03,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-23 03:01:03,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2018-11-23 03:01:03,279 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 16 [2018-11-23 03:01:03,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:01:03,279 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2018-11-23 03:01:03,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 03:01:03,279 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2018-11-23 03:01:03,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 03:01:03,281 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:01:03,281 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:01:03,281 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:01:03,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:01:03,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1022051762, now seen corresponding path program 1 times [2018-11-23 03:01:03,282 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:01:03,282 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:01:03,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:01:03,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:01:03,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:01:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:01:03,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:01:03,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:01:03,334 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 03:01:03,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:01:03,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:01:03,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:01:03,335 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 3 states. [2018-11-23 03:01:03,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:01:03,344 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2018-11-23 03:01:03,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:01:03,345 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-11-23 03:01:03,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:01:03,346 INFO L225 Difference]: With dead ends: 38 [2018-11-23 03:01:03,346 INFO L226 Difference]: Without dead ends: 28 [2018-11-23 03:01:03,346 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:01:03,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-23 03:01:03,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-23 03:01:03,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-23 03:01:03,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2018-11-23 03:01:03,351 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 17 [2018-11-23 03:01:03,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:01:03,351 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2018-11-23 03:01:03,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:01:03,352 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2018-11-23 03:01:03,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 03:01:03,352 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:01:03,352 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:01:03,352 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:01:03,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:01:03,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1618876125, now seen corresponding path program 1 times [2018-11-23 03:01:03,353 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:01:03,353 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:01:03,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:01:03,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:01:03,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:01:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:01:03,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:01:03,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:01:03,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 03:01:03,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:01:03,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:01:03,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:01:03,406 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand 3 states. [2018-11-23 03:01:03,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:01:03,409 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2018-11-23 03:01:03,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:01:03,410 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-23 03:01:03,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:01:03,410 INFO L225 Difference]: With dead ends: 29 [2018-11-23 03:01:03,410 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 03:01:03,411 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:01:03,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 03:01:03,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 03:01:03,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 03:01:03,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 03:01:03,411 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-11-23 03:01:03,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:01:03,411 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 03:01:03,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:01:03,412 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 03:01:03,412 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 03:01:03,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 03:01:03,469 INFO L451 ceAbstractionStarter]: At program point L576(line 576) the Hoare annotation is: true [2018-11-23 03:01:03,469 INFO L451 ceAbstractionStarter]: At program point L576-1(lines 571 577) the Hoare annotation is: true [2018-11-23 03:01:03,469 INFO L451 ceAbstractionStarter]: At program point L574(line 574) the Hoare annotation is: true [2018-11-23 03:01:03,469 INFO L448 ceAbstractionStarter]: For program point L573(lines 573 576) no Hoare annotation was computed. [2018-11-23 03:01:03,469 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 577) no Hoare annotation was computed. [2018-11-23 03:01:03,469 INFO L448 ceAbstractionStarter]: For program point L571-3(lines 571 577) no Hoare annotation was computed. [2018-11-23 03:01:03,469 INFO L448 ceAbstractionStarter]: For program point create_listEXIT(lines 569 579) no Hoare annotation was computed. [2018-11-23 03:01:03,469 INFO L451 ceAbstractionStarter]: At program point create_listENTRY(lines 569 579) the Hoare annotation is: true [2018-11-23 03:01:03,469 INFO L448 ceAbstractionStarter]: For program point create_listFINAL(lines 569 579) no Hoare annotation was computed. [2018-11-23 03:01:03,469 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 03:01:03,469 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 03:01:03,470 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 03:01:03,470 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 03:01:03,470 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 03:01:03,470 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 03:01:03,470 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 03:01:03,470 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 580 602) no Hoare annotation was computed. [2018-11-23 03:01:03,470 INFO L448 ceAbstractionStarter]: For program point L597-1(lines 580 602) no Hoare annotation was computed. [2018-11-23 03:01:03,470 INFO L448 ceAbstractionStarter]: For program point L597-2(lines 580 602) no Hoare annotation was computed. [2018-11-23 03:01:03,470 INFO L448 ceAbstractionStarter]: For program point L593(lines 593 594) no Hoare annotation was computed. [2018-11-23 03:01:03,470 INFO L448 ceAbstractionStarter]: For program point L593-2(lines 593 594) no Hoare annotation was computed. [2018-11-23 03:01:03,471 INFO L444 ceAbstractionStarter]: At program point L585-2(lines 585 591) the Hoare annotation is: (and (= main_~low~0.offset 0) (= main_~low~0.base 0) (= main_~high~0.base 0) (= main_~high~0.offset 0)) [2018-11-23 03:01:03,471 INFO L448 ceAbstractionStarter]: For program point L581(line 581) no Hoare annotation was computed. [2018-11-23 03:01:03,471 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 594) no Hoare annotation was computed. [2018-11-23 03:01:03,471 INFO L448 ceAbstractionStarter]: For program point L598(lines 598 599) no Hoare annotation was computed. [2018-11-23 03:01:03,471 INFO L448 ceAbstractionStarter]: For program point L598-2(lines 598 599) no Hoare annotation was computed. [2018-11-23 03:01:03,471 INFO L448 ceAbstractionStarter]: For program point L594(line 594) no Hoare annotation was computed. [2018-11-23 03:01:03,471 INFO L448 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2018-11-23 03:01:03,471 INFO L448 ceAbstractionStarter]: For program point L586-2(line 586) no Hoare annotation was computed. [2018-11-23 03:01:03,471 INFO L448 ceAbstractionStarter]: For program point L599(line 599) no Hoare annotation was computed. [2018-11-23 03:01:03,471 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 599) no Hoare annotation was computed. [2018-11-23 03:01:03,471 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 580 602) the Hoare annotation is: true [2018-11-23 03:01:03,472 INFO L448 ceAbstractionStarter]: For program point L592-1(lines 580 602) no Hoare annotation was computed. [2018-11-23 03:01:03,472 INFO L448 ceAbstractionStarter]: For program point append_to_listEXIT(lines 562 568) no Hoare annotation was computed. [2018-11-23 03:01:03,472 INFO L451 ceAbstractionStarter]: At program point append_to_listENTRY(lines 562 568) the Hoare annotation is: true [2018-11-23 03:01:03,472 INFO L448 ceAbstractionStarter]: For program point append_to_listFINAL(lines 562 568) no Hoare annotation was computed. [2018-11-23 03:01:03,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:01:03 BoogieIcfgContainer [2018-11-23 03:01:03,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 03:01:03,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 03:01:03,481 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 03:01:03,481 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 03:01:03,481 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:01:03" (3/4) ... [2018-11-23 03:01:03,484 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 03:01:03,488 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure create_list [2018-11-23 03:01:03,488 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 03:01:03,488 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 03:01:03,488 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure append_to_list [2018-11-23 03:01:03,491 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-23 03:01:03,491 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-23 03:01:03,492 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 03:01:03,527 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_36c5989c-913f-4e0a-bffa-dd3f2054a5eb/bin-2019/uautomizer/witness.graphml [2018-11-23 03:01:03,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 03:01:03,528 INFO L168 Benchmark]: Toolchain (without parser) took 1109.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 956.6 MB in the beginning and 1.0 GB in the end (delta: -77.2 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. [2018-11-23 03:01:03,529 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:01:03,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -149.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2018-11-23 03:01:03,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:01:03,530 INFO L168 Benchmark]: Boogie Preprocessor took 20.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:01:03,530 INFO L168 Benchmark]: RCFGBuilder took 242.46 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: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2018-11-23 03:01:03,531 INFO L168 Benchmark]: TraceAbstraction took 428.22 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: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. [2018-11-23 03:01:03,531 INFO L168 Benchmark]: Witness Printer took 47.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:01:03,532 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 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 346.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -149.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 242.46 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: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 428.22 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: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. * Witness Printer took 47.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 594]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 599]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((low == 0 && low == 0) && high == 0) && high == 0 - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 2 error locations. SAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 100 SDtfs, 14 SDslu, 42 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 22 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1268 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...