./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/matrix_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/matrix_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77bbd25ad99103bdffda3bd7f6a6e3c182ec06ae .............................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/matrix_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77bbd25ad99103bdffda3bd7f6a6e3c182ec06ae ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:42:47,879 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:42:47,880 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:42:47,888 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:42:47,888 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:42:47,889 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:42:47,890 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:42:47,891 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:42:47,891 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:42:47,892 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:42:47,892 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:42:47,892 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:42:47,893 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:42:47,893 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:42:47,894 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:42:47,894 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:42:47,895 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:42:47,896 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:42:47,897 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:42:47,898 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:42:47,898 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:42:47,899 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:42:47,901 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:42:47,901 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:42:47,901 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:42:47,902 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:42:47,902 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:42:47,903 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:42:47,903 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:42:47,904 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:42:47,904 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:42:47,905 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:42:47,905 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:42:47,905 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:42:47,906 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:42:47,906 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:42:47,906 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 07:42:47,917 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:42:47,917 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:42:47,917 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:42:47,918 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 07:42:47,918 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 07:42:47,918 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 07:42:47,918 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 07:42:47,918 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 07:42:47,918 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 07:42:47,918 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 07:42:47,918 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 07:42:47,919 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:42:47,919 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:42:47,919 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:42:47,919 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:42:47,919 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:42:47,920 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:42:47,920 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:42:47,920 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:42:47,920 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:42:47,920 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:42:47,920 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:42:47,920 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:42:47,920 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:42:47,921 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:42:47,921 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:42:47,921 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:42:47,921 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:42:47,921 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:42:47,921 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:42:47,921 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 07:42:47,921 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:42:47,922 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:42:47,922 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 07:42:47,922 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77bbd25ad99103bdffda3bd7f6a6e3c182ec06ae [2018-11-10 07:42:47,945 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:42:47,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:42:47,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:42:47,958 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:42:47,958 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:42:47,958 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/../../sv-benchmarks/c/loops/matrix_true-unreach-call_true-termination.i [2018-11-10 07:42:47,999 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/data/0b4b4fb84/145b329db82d4753b4346f04dc293058/FLAGef684bcc8 [2018-11-10 07:42:48,399 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:42:48,400 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/sv-benchmarks/c/loops/matrix_true-unreach-call_true-termination.i [2018-11-10 07:42:48,404 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/data/0b4b4fb84/145b329db82d4753b4346f04dc293058/FLAGef684bcc8 [2018-11-10 07:42:48,414 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/data/0b4b4fb84/145b329db82d4753b4346f04dc293058 [2018-11-10 07:42:48,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:42:48,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:42:48,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:42:48,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:42:48,422 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:42:48,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:42:48" (1/1) ... [2018-11-10 07:42:48,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eeb45d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:48, skipping insertion in model container [2018-11-10 07:42:48,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:42:48" (1/1) ... [2018-11-10 07:42:48,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:42:48,449 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:42:48,553 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:42:48,556 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:42:48,565 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValue(TypeSizes.java:432) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValueInteger(TypeSizes.java:391) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:335) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.extractSizeTValue(TypeSizeAndOffsetComputer.java:317) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructSizeTValue_Array(TypeSizeAndOffsetComputer.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.computeSize(TypeSizeAndOffsetComputer.java:200) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructSizeTValue_Array(TypeSizeAndOffsetComputer.java:228) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.computeSize(TypeSizeAndOffsetComputer.java:200) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizeAndOffsetComputer.constructBytesizeExpression(TypeSizeAndOffsetComputer.java:120) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.MemoryHandler.calculateSizeOf(MemoryHandler.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.MemoryHandler.getMallocCall(MemoryHandler.java:514) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2686) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1876) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1011) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:318) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:364) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:287) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3316) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:537) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:228) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-10 07:42:48,568 INFO L168 Benchmark]: Toolchain (without parser) took 150.67 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:42:48,569 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:42:48,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.62 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:42:48,571 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 148.62 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValue(TypeSizes.java:432) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:42:49,748 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:42:49,750 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:42:49,757 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:42:49,757 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:42:49,758 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:42:49,759 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:42:49,760 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:42:49,761 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:42:49,761 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:42:49,762 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:42:49,762 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:42:49,763 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:42:49,764 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:42:49,764 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:42:49,765 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:42:49,766 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:42:49,767 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:42:49,768 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:42:49,769 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:42:49,770 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:42:49,771 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:42:49,772 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:42:49,773 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:42:49,773 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:42:49,773 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:42:49,774 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:42:49,775 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:42:49,775 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:42:49,776 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:42:49,776 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:42:49,777 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:42:49,777 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:42:49,777 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:42:49,778 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:42:49,778 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:42:49,778 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 07:42:49,789 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:42:49,789 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:42:49,789 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:42:49,790 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 07:42:49,790 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 07:42:49,790 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 07:42:49,790 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 07:42:49,790 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 07:42:49,791 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:42:49,791 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:42:49,791 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:42:49,791 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:42:49,791 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:42:49,791 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:42:49,792 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:42:49,792 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 07:42:49,792 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 07:42:49,792 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:42:49,792 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:42:49,792 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:42:49,792 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:42:49,793 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:42:49,793 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:42:49,793 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:42:49,793 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:42:49,793 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:42:49,793 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:42:49,793 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:42:49,794 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 07:42:49,794 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:42:49,794 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 07:42:49,794 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 07:42:49,794 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_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77bbd25ad99103bdffda3bd7f6a6e3c182ec06ae [2018-11-10 07:42:49,823 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:42:49,831 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:42:49,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:42:49,834 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:42:49,834 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:42:49,835 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/../../sv-benchmarks/c/loops/matrix_true-unreach-call_true-termination.i [2018-11-10 07:42:49,869 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/data/c96ce4d42/218d103b67d848bb945d36d33bc242dc/FLAG8d27208d4 [2018-11-10 07:42:50,257 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:42:50,257 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/sv-benchmarks/c/loops/matrix_true-unreach-call_true-termination.i [2018-11-10 07:42:50,261 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/data/c96ce4d42/218d103b67d848bb945d36d33bc242dc/FLAG8d27208d4 [2018-11-10 07:42:50,270 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/data/c96ce4d42/218d103b67d848bb945d36d33bc242dc [2018-11-10 07:42:50,272 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:42:50,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:42:50,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:42:50,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:42:50,276 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:42:50,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:42:50" (1/1) ... [2018-11-10 07:42:50,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f073077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:50, skipping insertion in model container [2018-11-10 07:42:50,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:42:50" (1/1) ... [2018-11-10 07:42:50,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:42:50,298 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:42:50,414 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:42:50,417 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:42:50,437 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:42:50,452 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:42:50,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:50 WrapperNode [2018-11-10 07:42:50,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:42:50,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:42:50,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:42:50,453 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:42:50,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:50" (1/1) ... [2018-11-10 07:42:50,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:50" (1/1) ... [2018-11-10 07:42:50,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:42:50,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:42:50,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:42:50,478 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:42:50,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:50" (1/1) ... [2018-11-10 07:42:50,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:50" (1/1) ... [2018-11-10 07:42:50,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:50" (1/1) ... [2018-11-10 07:42:50,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:50" (1/1) ... [2018-11-10 07:42:50,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:50" (1/1) ... [2018-11-10 07:42:50,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:50" (1/1) ... [2018-11-10 07:42:50,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:50" (1/1) ... [2018-11-10 07:42:50,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:42:50,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:42:50,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:42:50,499 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:42:50,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:42:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:42:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:42:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:42:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:42:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:42:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:42:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 07:42:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 07:42:50,723 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:42:50,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:42:50 BoogieIcfgContainer [2018-11-10 07:42:50,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:42:50,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:42:50,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:42:50,727 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:42:50,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:42:50" (1/3) ... [2018-11-10 07:42:50,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6f3b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:42:50, skipping insertion in model container [2018-11-10 07:42:50,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:42:50" (2/3) ... [2018-11-10 07:42:50,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6f3b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:42:50, skipping insertion in model container [2018-11-10 07:42:50,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:42:50" (3/3) ... [2018-11-10 07:42:50,730 INFO L112 eAbstractionObserver]: Analyzing ICFG matrix_true-unreach-call_true-termination.i [2018-11-10 07:42:50,736 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:42:50,741 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:42:50,750 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:42:50,770 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:42:50,771 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:42:50,771 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:42:50,771 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:42:50,771 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:42:50,771 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:42:50,771 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:42:50,771 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:42:50,772 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:42:50,782 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-11-10 07:42:50,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 07:42:50,786 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:42:50,787 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:42:50,788 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:42:50,791 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:42:50,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1518561956, now seen corresponding path program 1 times [2018-11-10 07:42:50,794 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:42:50,795 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 07:42:50,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:42:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:42:50,846 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:42:50,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:42:50,856 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:42:50,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:42:50,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:42:50,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 07:42:50,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 07:42:50,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:42:50,871 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2018-11-10 07:42:50,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:42:50,884 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2018-11-10 07:42:50,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 07:42:50,885 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-11-10 07:42:50,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:42:50,891 INFO L225 Difference]: With dead ends: 46 [2018-11-10 07:42:50,891 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 07:42:50,894 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:42:50,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 07:42:50,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-10 07:42:50,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 07:42:50,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-10 07:42:50,915 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2018-11-10 07:42:50,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:42:50,915 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-10 07:42:50,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 07:42:50,915 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-10 07:42:50,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 07:42:50,916 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:42:50,916 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:42:50,916 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:42:50,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:42:50,917 INFO L82 PathProgramCache]: Analyzing trace with hash 876523911, now seen corresponding path program 1 times [2018-11-10 07:42:50,917 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:42:50,917 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 07:42:50,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:42:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:42:50,961 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:42:50,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:42:50,984 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:42:50,985 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:42:50,985 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 07:42:50,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 07:42:50,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 07:42:50,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:42:50,986 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-10 07:42:51,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:42:51,043 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-11-10 07:42:51,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 07:42:51,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-10 07:42:51,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:42:51,046 INFO L225 Difference]: With dead ends: 32 [2018-11-10 07:42:51,046 INFO L226 Difference]: Without dead ends: 26 [2018-11-10 07:42:51,047 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:42:51,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-10 07:42:51,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2018-11-10 07:42:51,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 07:42:51,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-10 07:42:51,050 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 13 [2018-11-10 07:42:51,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:42:51,050 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-10 07:42:51,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 07:42:51,050 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-10 07:42:51,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 07:42:51,051 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:42:51,051 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:42:51,051 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:42:51,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:42:51,051 INFO L82 PathProgramCache]: Analyzing trace with hash 69324171, now seen corresponding path program 1 times [2018-11-10 07:42:51,052 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:42:51,052 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 07:42:51,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:42:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:42:51,096 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:42:51,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:42:51,115 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:42:51,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:42:51,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 07:42:51,117 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 07:42:51,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 07:42:51,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 07:42:51,120 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 4 states. [2018-11-10 07:42:51,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:42:51,155 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2018-11-10 07:42:51,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 07:42:51,157 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-11-10 07:42:51,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:42:51,157 INFO L225 Difference]: With dead ends: 36 [2018-11-10 07:42:51,157 INFO L226 Difference]: Without dead ends: 23 [2018-11-10 07:42:51,158 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 07:42:51,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-10 07:42:51,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-10 07:42:51,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-10 07:42:51,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-11-10 07:42:51,161 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 18 [2018-11-10 07:42:51,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:42:51,161 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-11-10 07:42:51,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 07:42:51,161 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-11-10 07:42:51,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 07:42:51,162 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:42:51,162 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:42:51,162 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:42:51,162 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:42:51,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1276771180, now seen corresponding path program 1 times [2018-11-10 07:42:51,163 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:42:51,163 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 07:42:51,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:42:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:42:51,301 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:42:51,364 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 07:42:51,372 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 07:42:51,372 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:42:51,374 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:42:51,376 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:42:51,376 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-10 07:42:51,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:42:51,411 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:42:51,494 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-11-10 07:42:53,517 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (bvadd (bvadd |main_~#matriz~0.offset| (bvmul main_~j~0 (bvmul (_ bv4 32) main_~N_LIN~0))) (bvmul (_ bv4 32) main_~k~0)) |main_~#matriz~0.offset|) [2018-11-10 07:42:53,537 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:42:53,538 INFO L303 Elim1Store]: Index analysis took 2043 ms [2018-11-10 07:42:53,539 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-11-10 07:42:53,541 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:42:53,559 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:42:53,576 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:42:53,576 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:13 [2018-11-10 07:42:53,904 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:42:53,907 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:42:53,907 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:42:53,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:42:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:42:53,951 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:42:54,048 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 18 [2018-11-10 07:42:54,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-11-10 07:42:54,052 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:42:54,057 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:42:54,083 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:42:54,084 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:10 [2018-11-10 07:42:54,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-10 07:42:54,094 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-10 07:42:54,094 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:42:54,096 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:42:54,098 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:42:54,098 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-11-10 07:42:54,102 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:42:54,102 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:42:56,436 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2018-11-10 07:42:56,597 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 16 [2018-11-10 07:42:56,612 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-11-10 07:42:56,613 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:42:56,680 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:42:56,737 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:42:56,737 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:20, output treesize:13 [2018-11-10 07:42:59,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:42:59,092 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 07:42:59,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 9] total 19 [2018-11-10 07:42:59,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-10 07:42:59,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-10 07:42:59,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=278, Unknown=2, NotChecked=0, Total=342 [2018-11-10 07:42:59,093 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 19 states. [2018-11-10 07:42:59,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:42:59,568 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2018-11-10 07:42:59,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 07:42:59,570 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2018-11-10 07:42:59,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:42:59,570 INFO L225 Difference]: With dead ends: 44 [2018-11-10 07:42:59,571 INFO L226 Difference]: Without dead ends: 38 [2018-11-10 07:42:59,571 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=96, Invalid=408, Unknown=2, NotChecked=0, Total=506 [2018-11-10 07:42:59,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-10 07:42:59,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2018-11-10 07:42:59,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-10 07:42:59,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2018-11-10 07:42:59,577 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 22 [2018-11-10 07:42:59,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:42:59,577 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2018-11-10 07:42:59,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-10 07:42:59,577 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2018-11-10 07:42:59,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 07:42:59,578 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:42:59,578 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:42:59,578 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:42:59,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:42:59,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1018605742, now seen corresponding path program 1 times [2018-11-10 07:42:59,579 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:42:59,579 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 07:42:59,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:42:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:42:59,679 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:42:59,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-10 07:42:59,718 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-10 07:42:59,719 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:42:59,720 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:42:59,722 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:42:59,722 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-11-10 07:42:59,761 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:42:59,761 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:42:59,877 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2018-11-10 07:43:01,937 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (bvadd (bvadd |main_~#matriz~0.offset| (bvmul main_~j~0 (bvmul (_ bv4 32) main_~N_LIN~0))) (bvmul (_ bv4 32) main_~k~0)) |main_~#matriz~0.offset|) [2018-11-10 07:43:01,959 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 07:43:01,961 INFO L303 Elim1Store]: Index analysis took 2083 ms [2018-11-10 07:43:01,961 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-11-10 07:43:01,963 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-10 07:43:02,057 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-10 07:43:02,120 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-10 07:43:02,120 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:20 [2018-11-10 07:43:02,525 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-10 07:43:02,864 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:43:02,866 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:43:02,866 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:43:02,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:43:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:43:02,902 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:43:02,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-11-10 07:43:02,998 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-11-10 07:43:02,998 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:43:03,000 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:43:03,005 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:43:03,005 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:11 [2018-11-10 07:43:03,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-10 07:43:03,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-10 07:43:03,016 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:43:03,019 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:43:03,021 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:43:03,021 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-11-10 07:43:03,034 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:43:03,034 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:43:03,123 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2018-11-10 07:43:03,239 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2018-11-10 07:43:03,240 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:43:03,364 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:43:03,428 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 07:43:03,428 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:24, output treesize:13 [2018-11-10 07:43:03,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:43:03,757 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 07:43:03,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9] total 21 [2018-11-10 07:43:03,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-10 07:43:03,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-10 07:43:03,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2018-11-10 07:43:03,758 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 21 states. [2018-11-10 07:43:04,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:43:04,490 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2018-11-10 07:43:04,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-10 07:43:04,491 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 22 [2018-11-10 07:43:04,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:43:04,491 INFO L225 Difference]: With dead ends: 57 [2018-11-10 07:43:04,491 INFO L226 Difference]: Without dead ends: 49 [2018-11-10 07:43:04,492 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2018-11-10 07:43:04,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-10 07:43:04,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2018-11-10 07:43:04,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-10 07:43:04,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2018-11-10 07:43:04,496 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 22 [2018-11-10 07:43:04,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:43:04,497 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2018-11-10 07:43:04,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-10 07:43:04,497 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2018-11-10 07:43:04,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-10 07:43:04,497 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:43:04,497 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:43:04,498 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:43:04,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:43:04,498 INFO L82 PathProgramCache]: Analyzing trace with hash 394711079, now seen corresponding path program 2 times [2018-11-10 07:43:04,498 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 07:43:04,498 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 07:43:04,510 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-10 07:43:04,609 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 07:43:04,609 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 07:43:04,635 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:43:04,653 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 07:43:04,653 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:43:04,684 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 07:43:04,692 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 07:43:04,692 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 07:43:04,698 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 07:43:04,729 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 07:43:04,729 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 07:43:04,733 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:43:04,736 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 07:43:04,736 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 07:43:04,739 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 07:43:04,756 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 07:43:04,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4] total 6 [2018-11-10 07:43:04,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 07:43:04,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 07:43:04,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-10 07:43:04,757 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 6 states. [2018-11-10 07:43:04,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:43:04,783 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2018-11-10 07:43:04,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 07:43:04,784 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-10 07:43:04,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:43:04,784 INFO L225 Difference]: With dead ends: 41 [2018-11-10 07:43:04,784 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 07:43:04,784 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-10 07:43:04,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 07:43:04,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 07:43:04,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 07:43:04,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 07:43:04,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-11-10 07:43:04,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:43:04,785 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 07:43:04,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 07:43:04,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 07:43:04,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 07:43:04,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 07:43:05,196 WARN L179 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 13 [2018-11-10 07:43:05,331 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 07:43:05,331 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 07:43:05,331 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:43:05,331 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:43:05,331 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 07:43:05,331 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 07:43:05,331 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 07:43:05,331 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 31) no Hoare annotation was computed. [2018-11-10 07:43:05,331 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 26) no Hoare annotation was computed. [2018-11-10 07:43:05,331 INFO L425 ceAbstractionStarter]: For program point L19-3(lines 19 26) no Hoare annotation was computed. [2018-11-10 07:43:05,331 INFO L421 ceAbstractionStarter]: At program point L19-4(lines 19 26) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) main_~N_LIN~0)) (.cse1 (= (_ bv1 32) main_~N_COL~0))) (or (and (= main_~j~0 (_ bv0 32)) .cse0 (= (_ bv0 32) |main_~#matriz~0.offset|) .cse1) (and (and (bvsle (select (select |#memory_int| |main_~#matriz~0.base|) |main_~#matriz~0.offset|) main_~maior~0) .cse0) (= (bvadd main_~j~0 (_ bv4294967295 32)) (_ bv0 32)) .cse1))) [2018-11-10 07:43:05,331 INFO L425 ceAbstractionStarter]: For program point L19-5(lines 19 26) no Hoare annotation was computed. [2018-11-10 07:43:05,331 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 31) no Hoare annotation was computed. [2018-11-10 07:43:05,331 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 31) the Hoare annotation is: true [2018-11-10 07:43:05,331 INFO L421 ceAbstractionStarter]: At program point L28(line 28) the Hoare annotation is: (and (bvsle (select (select |#memory_int| |main_~#matriz~0.base|) |main_~#matriz~0.offset|) main_~maior~0) (bvsle |main_#t~mem6| main_~maior~0) (= (_ bv1 32) main_~N_LIN~0)) [2018-11-10 07:43:05,332 INFO L425 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2018-11-10 07:43:05,332 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 25) no Hoare annotation was computed. [2018-11-10 07:43:05,332 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 26) no Hoare annotation was computed. [2018-11-10 07:43:05,332 INFO L425 ceAbstractionStarter]: For program point L20-3(lines 20 26) no Hoare annotation was computed. [2018-11-10 07:43:05,332 INFO L421 ceAbstractionStarter]: At program point L20-4(lines 20 26) the Hoare annotation is: (let ((.cse0 (= main_~j~0 (_ bv0 32))) (.cse1 (= (_ bv1 32) main_~N_LIN~0)) (.cse2 (= (_ bv0 32) |main_~#matriz~0.offset|)) (.cse4 (= (_ bv1 32) main_~N_COL~0))) (or (and (let ((.cse3 (select (select |#memory_int| |main_~#matriz~0.base|) |main_~#matriz~0.offset|))) (or (and .cse0 .cse1 .cse2 (not (bvsge .cse3 main_~maior~0))) (and .cse0 .cse1 .cse2 (= main_~maior~0 .cse3)))) .cse4) (and .cse0 .cse1 (= main_~k~0 (_ bv0 32)) .cse2 .cse4))) [2018-11-10 07:43:05,332 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-10 07:43:05,332 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-10 07:43:05,332 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-10 07:43:05,332 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-10 07:43:05,332 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-10 07:43:05,332 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-10 07:43:05,336 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 07:43:05,340 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 07:43:05,341 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 07:43:05,341 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 07:43:05,342 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 07:43:05,342 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 07:43:05,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:43:05 BoogieIcfgContainer [2018-11-10 07:43:05,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:43:05,345 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:43:05,345 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:43:05,345 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:43:05,345 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:42:50" (3/4) ... [2018-11-10 07:43:05,348 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 07:43:05,353 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 07:43:05,353 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 07:43:05,353 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 07:43:05,356 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2018-11-10 07:43:05,356 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-10 07:43:05,356 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 07:43:05,389 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_65918287-5556-400c-98ea-c5742f2a9e91/bin-2019/utaipan/witness.graphml [2018-11-10 07:43:05,389 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:43:05,390 INFO L168 Benchmark]: Toolchain (without parser) took 15117.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.8 MB). Free memory was 949.8 MB in the beginning and 1.2 GB in the end (delta: -203.3 MB). Peak memory consumption was 8.5 MB. Max. memory is 11.5 GB. [2018-11-10 07:43:05,390 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:43:05,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.78 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:43:05,391 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.01 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:43:05,391 INFO L168 Benchmark]: Boogie Preprocessor took 20.66 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:43:05,391 INFO L168 Benchmark]: RCFGBuilder took 224.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -205.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-11-10 07:43:05,391 INFO L168 Benchmark]: TraceAbstraction took 14619.77 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -14.3 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:43:05,392 INFO L168 Benchmark]: Witness Printer took 44.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:43:05,393 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 178.78 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.01 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.66 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 224.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -205.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14619.77 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -14.3 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. * Witness Printer took 44.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant [2018-11-10 07:43:05,397 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 07:43:05,397 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((j == 0bv32 && 1bv32 == N_LIN) && 0bv32 == matriz) && 1bv32 == N_COL) || (((~bvsle32(unknown-#memory_int-unknown[matriz][matriz], maior) && 1bv32 == N_LIN) && ~bvadd64(j, 4294967295bv32) == 0bv32) && 1bv32 == N_COL) - InvariantResult [Line: 20]: Loop Invariant [2018-11-10 07:43:05,398 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 07:43:05,398 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 07:43:05,398 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-10 07:43:05,399 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((j == 0bv32 && 1bv32 == N_LIN) && 0bv32 == matriz) && !~bvsge32(unknown-#memory_int-unknown[matriz][matriz], maior)) || (((j == 0bv32 && 1bv32 == N_LIN) && 0bv32 == matriz) && maior == unknown-#memory_int-unknown[matriz][matriz])) && 1bv32 == N_COL) || ((((j == 0bv32 && 1bv32 == N_LIN) && k == 0bv32) && 0bv32 == matriz) && 1bv32 == N_COL) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. SAFE Result, 14.5s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 108 SDtfs, 67 SDslu, 321 SDs, 0 SdLazy, 288 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 346 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=5, 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, 6 MinimizatonAttempts, 19 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 14 PreInvPairs, 21 NumberOfFragments, 110 HoareAnnotationTreeSize, 14 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.9s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 328 ConstructedInterpolants, 13 QuantifiedInterpolants, 36232 SizeOfPredicates, 85 NumberOfNonLiveVariables, 635 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 15 InterpolantComputations, 3 PerfectInterpolantSequences, 78/118 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...