./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/quick_sort_split.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8b355c3e-2742-4c04-857c-a7e7eb0bbbe3/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8b355c3e-2742-4c04-857c-a7e7eb0bbbe3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8b355c3e-2742-4c04-857c-a7e7eb0bbbe3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8b355c3e-2742-4c04-857c-a7e7eb0bbbe3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/quick_sort_split.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8b355c3e-2742-4c04-857c-a7e7eb0bbbe3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8b355c3e-2742-4c04-857c-a7e7eb0bbbe3/bin/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 9a9cf4ff5024af4bea046a077f81b398a029046b ............................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:22:14,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:14,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:14,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:14,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:14,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:14,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:14,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:14,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:14,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:14,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:14,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:14,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:14,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:14,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:14,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:14,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:14,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:14,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:14,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:14,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:14,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:14,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:14,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:14,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:14,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:14,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:14,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:14,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:14,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:14,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:14,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:14,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:14,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:14,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:14,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:14,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:14,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:14,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:14,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:14,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:14,743 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8b355c3e-2742-4c04-857c-a7e7eb0bbbe3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:22:14,768 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:14,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:14,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:14,769 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:14,770 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:14,770 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:14,771 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:14,771 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:14,771 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:14,772 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:14,772 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:14,772 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:14,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:14,773 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:22:14,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:14,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:22:14,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:14,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:14,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:14,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:14,774 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:22:14,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:14,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:14,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:14,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:14,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:14,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:14,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:14,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:14,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:14,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:14,780 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:14,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:14,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:14,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:14,781 INFO L138 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_8b355c3e-2742-4c04-857c-a7e7eb0bbbe3/bin/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 -> 9a9cf4ff5024af4bea046a077f81b398a029046b [2019-10-22 11:22:14,822 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:14,834 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:14,841 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:14,842 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:14,842 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:14,843 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8b355c3e-2742-4c04-857c-a7e7eb0bbbe3/bin/utaipan/../../sv-benchmarks/c/heap-data/quick_sort_split.i [2019-10-22 11:22:14,899 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8b355c3e-2742-4c04-857c-a7e7eb0bbbe3/bin/utaipan/data/ef3a709c6/b74931328d9d40019e6418b99316f873/FLAG2432f30fc [2019-10-22 11:22:15,349 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:15,350 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8b355c3e-2742-4c04-857c-a7e7eb0bbbe3/sv-benchmarks/c/heap-data/quick_sort_split.i [2019-10-22 11:22:15,364 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8b355c3e-2742-4c04-857c-a7e7eb0bbbe3/bin/utaipan/data/ef3a709c6/b74931328d9d40019e6418b99316f873/FLAG2432f30fc [2019-10-22 11:22:15,869 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8b355c3e-2742-4c04-857c-a7e7eb0bbbe3/bin/utaipan/data/ef3a709c6/b74931328d9d40019e6418b99316f873 [2019-10-22 11:22:15,872 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:15,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:15,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:15,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:15,881 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:15,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:15" (1/1) ... [2019-10-22 11:22:15,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a1d6da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:15, skipping insertion in model container [2019-10-22 11:22:15,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:15" (1/1) ... [2019-10-22 11:22:15,893 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:15,940 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:16,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:16,423 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:16,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:16,560 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:16,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16 WrapperNode [2019-10-22 11:22:16,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:16,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:16,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:16,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:16,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:16,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:16,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:16,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:16,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... [2019-10-22 11:22:16,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:16,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:16,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:16,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:16,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8b355c3e-2742-4c04-857c-a7e7eb0bbbe3/bin/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 [2019-10-22 11:22:16,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:22:16,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:22:16,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 11:22:16,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:22:16,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 11:22:16,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 11:22:16,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:22:16,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-22 11:22:16,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:16,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:17,177 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:17,177 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-10-22 11:22:17,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:17 BoogieIcfgContainer [2019-10-22 11:22:17,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:17,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:17,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:17,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:17,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:15" (1/3) ... [2019-10-22 11:22:17,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751b98a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:17, skipping insertion in model container [2019-10-22 11:22:17,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:16" (2/3) ... [2019-10-22 11:22:17,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751b98a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:17, skipping insertion in model container [2019-10-22 11:22:17,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:17" (3/3) ... [2019-10-22 11:22:17,187 INFO L109 eAbstractionObserver]: Analyzing ICFG quick_sort_split.i [2019-10-22 11:22:17,198 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:17,209 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-22 11:22:17,220 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-22 11:22:17,244 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:17,244 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:17,244 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:17,244 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:17,245 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:17,245 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:17,245 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:17,245 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:17,260 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-10-22 11:22:17,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 11:22:17,266 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:17,267 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:17,269 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:17,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:17,275 INFO L82 PathProgramCache]: Analyzing trace with hash 2051498666, now seen corresponding path program 1 times [2019-10-22 11:22:17,285 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:17,285 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711239249] [2019-10-22 11:22:17,286 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:17,286 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:17,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:17,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:17,416 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711239249] [2019-10-22 11:22:17,417 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:17,417 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:22:17,417 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248386868] [2019-10-22 11:22:17,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:22:17,426 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:17,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:22:17,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:22:17,440 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2019-10-22 11:22:17,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:17,454 INFO L93 Difference]: Finished difference Result 41 states and 60 transitions. [2019-10-22 11:22:17,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:22:17,456 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-10-22 11:22:17,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:17,465 INFO L225 Difference]: With dead ends: 41 [2019-10-22 11:22:17,466 INFO L226 Difference]: Without dead ends: 20 [2019-10-22 11:22:17,468 INFO L600 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 [2019-10-22 11:22:17,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-10-22 11:22:17,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-10-22 11:22:17,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-10-22 11:22:17,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2019-10-22 11:22:17,504 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 9 [2019-10-22 11:22:17,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:17,505 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2019-10-22 11:22:17,505 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:22:17,505 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2019-10-22 11:22:17,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:22:17,506 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:17,506 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:17,506 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:17,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:17,507 INFO L82 PathProgramCache]: Analyzing trace with hash -804873315, now seen corresponding path program 1 times [2019-10-22 11:22:17,507 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:17,507 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637656013] [2019-10-22 11:22:17,507 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:17,507 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:17,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:17,560 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637656013] [2019-10-22 11:22:17,560 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:17,561 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:17,561 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213638693] [2019-10-22 11:22:17,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:17,563 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:17,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:17,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:17,563 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand 3 states. [2019-10-22 11:22:17,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:17,576 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2019-10-22 11:22:17,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:17,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-10-22 11:22:17,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:17,577 INFO L225 Difference]: With dead ends: 26 [2019-10-22 11:22:17,577 INFO L226 Difference]: Without dead ends: 16 [2019-10-22 11:22:17,578 INFO L600 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 [2019-10-22 11:22:17,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-22 11:22:17,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-22 11:22:17,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-22 11:22:17,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2019-10-22 11:22:17,582 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 10 [2019-10-22 11:22:17,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:17,582 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2019-10-22 11:22:17,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:17,582 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2019-10-22 11:22:17,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:22:17,583 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:17,583 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:22:17,583 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:22:17,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:17,584 INFO L82 PathProgramCache]: Analyzing trace with hash 818688432, now seen corresponding path program 1 times [2019-10-22 11:22:17,584 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:17,584 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515370623] [2019-10-22 11:22:17,584 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:17,585 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:17,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:22:17,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:22:17,623 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515370623] [2019-10-22 11:22:17,623 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:22:17,624 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:22:17,624 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195419851] [2019-10-22 11:22:17,624 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 11:22:17,625 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:22:17,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 11:22:17,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 11:22:17,625 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand 3 states. [2019-10-22 11:22:17,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:22:17,632 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2019-10-22 11:22:17,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:22:17,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-10-22 11:22:17,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:22:17,633 INFO L225 Difference]: With dead ends: 17 [2019-10-22 11:22:17,634 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:22:17,634 INFO L600 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 [2019-10-22 11:22:17,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:22:17,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:22:17,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:22:17,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:22:17,635 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-10-22 11:22:17,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:22:17,635 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:22:17,635 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 11:22:17,635 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:22:17,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:22:17,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:22:17,666 INFO L443 ceAbstractionStarter]: For program point L597-1(lines 580 602) no Hoare annotation was computed. [2019-10-22 11:22:17,666 INFO L443 ceAbstractionStarter]: For program point L593(lines 593 594) no Hoare annotation was computed. [2019-10-22 11:22:17,666 INFO L443 ceAbstractionStarter]: For program point L593-2(lines 593 594) no Hoare annotation was computed. [2019-10-22 11:22:17,666 INFO L439 ceAbstractionStarter]: At program point L585-2(lines 585 591) the Hoare annotation is: (and (= ULTIMATE.start_main_~high~0.offset 0) (= ULTIMATE.start_main_~low~0.base 0) (= 0 ULTIMATE.start_main_~high~0.base) (= 0 ULTIMATE.start_main_~low~0.offset)) [2019-10-22 11:22:17,666 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:22:17,667 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:22:17,667 INFO L443 ceAbstractionStarter]: For program point L573(lines 573 576) no Hoare annotation was computed. [2019-10-22 11:22:17,667 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:22:17,667 INFO L443 ceAbstractionStarter]: For program point L598(lines 598 599) no Hoare annotation was computed. [2019-10-22 11:22:17,667 INFO L443 ceAbstractionStarter]: For program point L598-2(lines 598 599) no Hoare annotation was computed. [2019-10-22 11:22:17,667 INFO L443 ceAbstractionStarter]: For program point L594(line 594) no Hoare annotation was computed. [2019-10-22 11:22:17,668 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 594) no Hoare annotation was computed. [2019-10-22 11:22:17,668 INFO L443 ceAbstractionStarter]: For program point L586(line 586) no Hoare annotation was computed. [2019-10-22 11:22:17,668 INFO L443 ceAbstractionStarter]: For program point L586-2(line 586) no Hoare annotation was computed. [2019-10-22 11:22:17,668 INFO L446 ceAbstractionStarter]: At program point L578(lines 569 579) the Hoare annotation is: true [2019-10-22 11:22:17,668 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:22:17,668 INFO L443 ceAbstractionStarter]: For program point L599(line 599) no Hoare annotation was computed. [2019-10-22 11:22:17,668 INFO L446 ceAbstractionStarter]: At program point L562-1(lines 562 577) the Hoare annotation is: true [2019-10-22 11:22:17,669 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 599) no Hoare annotation was computed. [2019-10-22 11:22:17,669 INFO L443 ceAbstractionStarter]: For program point L571-1(lines 571 577) no Hoare annotation was computed. [2019-10-22 11:22:17,669 INFO L443 ceAbstractionStarter]: For program point L571-3(lines 571 577) no Hoare annotation was computed. [2019-10-22 11:22:17,669 INFO L443 ceAbstractionStarter]: For program point L592-1(lines 580 602) no Hoare annotation was computed. [2019-10-22 11:22:17,669 INFO L443 ceAbstractionStarter]: For program point L580(lines 580 602) no Hoare annotation was computed. [2019-10-22 11:22:17,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:22:17 BoogieIcfgContainer [2019-10-22 11:22:17,685 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:22:17,685 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:22:17,685 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:22:17,685 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:22:17,686 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:17" (3/4) ... [2019-10-22 11:22:17,690 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:22:17,702 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-10-22 11:22:17,702 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:22:17,702 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:22:17,760 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8b355c3e-2742-4c04-857c-a7e7eb0bbbe3/bin/utaipan/witness.graphml [2019-10-22 11:22:17,760 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:22:17,762 INFO L168 Benchmark]: Toolchain (without parser) took 1888.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.5 MB in the beginning and 1.0 GB in the end (delta: -104.0 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:17,763 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:17,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:17,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.76 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:17,764 INFO L168 Benchmark]: Boogie Preprocessor took 60.89 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. [2019-10-22 11:22:17,764 INFO L168 Benchmark]: RCFGBuilder took 495.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:17,765 INFO L168 Benchmark]: TraceAbstraction took 504.71 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:17,765 INFO L168 Benchmark]: Witness Printer took 75.24 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. [2019-10-22 11:22:17,767 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 687.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.76 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.89 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. * RCFGBuilder took 495.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 504.71 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 75.24 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: 599]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 594]: 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: 569]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((high == 0 && low == 0) && 0 == high) && 0 == low - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 2 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 60 SDtfs, 14 SDslu, 14 SDs, 0 SdLazy, 5 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=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 15 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 533 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...