./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_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/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_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/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_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/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_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/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 [2018-10-26 22:37:47,151 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:37:47,153 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:37:47,162 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:37:47,162 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:37:47,163 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:37:47,164 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:37:47,165 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:37:47,167 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:37:47,173 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:37:47,178 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:37:47,178 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:37:47,179 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:37:47,180 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:37:47,181 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:37:47,181 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:37:47,182 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:37:47,195 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:37:47,197 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:37:47,201 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:37:47,204 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:37:47,206 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:37:47,208 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:37:47,208 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:37:47,208 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:37:47,209 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:37:47,210 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:37:47,210 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:37:47,211 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:37:47,215 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:37:47,217 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:37:47,218 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:37:47,218 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:37:47,218 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:37:47,219 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:37:47,219 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:37:47,219 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 22:37:47,234 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:37:47,239 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:37:47,239 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:37:47,239 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:37:47,240 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:37:47,240 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:37:47,240 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 22:37:47,240 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:37:47,240 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 22:37:47,240 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 22:37:47,240 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:37:47,241 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:37:47,241 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:37:47,241 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:37:47,241 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:37:47,241 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:37:47,242 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:37:47,242 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:37:47,242 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:37:47,242 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:37:47,242 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:37:47,242 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:37:47,243 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:37:47,243 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:37:47,243 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:37:47,247 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:37:47,247 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:37:47,248 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:37:47,248 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:37:47,248 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:37:47,248 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 22:37:47,248 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:37:47,248 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:37:47,248 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:37:47,248 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_c15beb40-7c70-4c84-805f-335c83720eb7/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 [2018-10-26 22:37:47,285 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:37:47,296 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:37:47,298 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:37:47,299 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:37:47,299 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:37:47,300 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/../../sv-benchmarks/c/loops/matrix_true-unreach-call_true-termination.i [2018-10-26 22:37:47,348 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/data/77825a29f/9420fd95feff4dfdbe8bdbd255871882/FLAG27dacf6e8 [2018-10-26 22:37:47,730 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:37:47,731 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/sv-benchmarks/c/loops/matrix_true-unreach-call_true-termination.i [2018-10-26 22:37:47,736 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/data/77825a29f/9420fd95feff4dfdbe8bdbd255871882/FLAG27dacf6e8 [2018-10-26 22:37:47,747 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/data/77825a29f/9420fd95feff4dfdbe8bdbd255871882 [2018-10-26 22:37:47,750 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:37:47,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:37:47,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:37:47,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:37:47,756 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:37:47,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:37:47" (1/1) ... [2018-10-26 22:37:47,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@267e2a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:47, skipping insertion in model container [2018-10-26 22:37:47,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:37:47" (1/1) ... [2018-10-26 22:37:47,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:37:47,784 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:37:47,918 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:37:47,921 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:37:47,933 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-26 22:37:47,941 INFO L168 Benchmark]: Toolchain (without parser) took 190.65 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:37:47,943 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:37:47,943 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.01 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:37:47,945 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.01 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 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 [2018-10-26 22:37:49,675 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:37:49,676 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:37:49,686 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:37:49,686 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:37:49,687 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:37:49,688 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:37:49,689 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:37:49,691 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:37:49,692 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:37:49,693 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:37:49,693 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:37:49,694 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:37:49,694 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:37:49,696 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:37:49,696 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:37:49,697 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:37:49,699 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:37:49,701 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:37:49,702 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:37:49,703 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:37:49,704 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:37:49,706 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:37:49,706 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:37:49,706 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:37:49,708 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:37:49,709 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:37:49,709 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:37:49,710 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:37:49,711 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:37:49,711 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:37:49,712 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:37:49,712 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:37:49,712 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:37:49,713 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:37:49,714 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:37:49,714 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 22:37:49,726 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:37:49,726 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:37:49,727 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:37:49,727 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:37:49,727 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:37:49,728 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:37:49,728 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:37:49,728 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:37:49,728 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:37:49,729 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:37:49,729 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:37:49,729 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:37:49,729 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:37:49,729 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:37:49,729 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:37:49,729 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 22:37:49,729 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 22:37:49,730 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:37:49,730 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:37:49,730 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:37:49,730 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:37:49,730 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:37:49,730 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:37:49,730 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:37:49,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:37:49,731 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:37:49,731 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:37:49,733 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:37:49,733 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 22:37:49,734 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:37:49,734 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 22:37:49,734 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 22:37:49,734 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_c15beb40-7c70-4c84-805f-335c83720eb7/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 [2018-10-26 22:37:49,768 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:37:49,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:37:49,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:37:49,782 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:37:49,783 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:37:49,784 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/../../sv-benchmarks/c/loops/matrix_true-unreach-call_true-termination.i [2018-10-26 22:37:49,832 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/data/9de49ce53/1609ba9cfda24fc7bc02f0cc4dc7fa47/FLAG3d00e1030 [2018-10-26 22:37:50,212 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:37:50,213 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/sv-benchmarks/c/loops/matrix_true-unreach-call_true-termination.i [2018-10-26 22:37:50,218 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/data/9de49ce53/1609ba9cfda24fc7bc02f0cc4dc7fa47/FLAG3d00e1030 [2018-10-26 22:37:50,229 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/data/9de49ce53/1609ba9cfda24fc7bc02f0cc4dc7fa47 [2018-10-26 22:37:50,232 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:37:50,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:37:50,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:37:50,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:37:50,238 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:37:50,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:37:50" (1/1) ... [2018-10-26 22:37:50,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559bb6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:50, skipping insertion in model container [2018-10-26 22:37:50,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:37:50" (1/1) ... [2018-10-26 22:37:50,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:37:50,273 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:37:50,413 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:37:50,417 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:37:50,443 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:37:50,466 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:37:50,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:50 WrapperNode [2018-10-26 22:37:50,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:37:50,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:37:50,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:37:50,468 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:37:50,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:50" (1/1) ... [2018-10-26 22:37:50,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:50" (1/1) ... [2018-10-26 22:37:50,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:37:50,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:37:50,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:37:50,506 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:37:50,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:50" (1/1) ... [2018-10-26 22:37:50,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:50" (1/1) ... [2018-10-26 22:37:50,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:50" (1/1) ... [2018-10-26 22:37:50,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:50" (1/1) ... [2018-10-26 22:37:50,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:50" (1/1) ... [2018-10-26 22:37:50,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:50" (1/1) ... [2018-10-26 22:37:50,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:50" (1/1) ... [2018-10-26 22:37:50,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:37:50,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:37:50,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:37:50,542 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:37:50,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:37:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:37:50,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:37:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:37:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:37:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:37:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:37:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 22:37:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 22:37:51,034 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:37:51,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:37:51 BoogieIcfgContainer [2018-10-26 22:37:51,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:37:51,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:37:51,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:37:51,038 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:37:51,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:37:50" (1/3) ... [2018-10-26 22:37:51,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15f4946a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:37:51, skipping insertion in model container [2018-10-26 22:37:51,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:37:50" (2/3) ... [2018-10-26 22:37:51,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15f4946a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:37:51, skipping insertion in model container [2018-10-26 22:37:51,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:37:51" (3/3) ... [2018-10-26 22:37:51,042 INFO L112 eAbstractionObserver]: Analyzing ICFG matrix_true-unreach-call_true-termination.i [2018-10-26 22:37:51,051 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:37:51,058 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:37:51,069 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:37:51,093 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:37:51,094 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:37:51,094 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:37:51,094 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:37:51,094 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:37:51,094 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:37:51,094 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:37:51,094 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:37:51,095 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:37:51,109 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-10-26 22:37:51,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-26 22:37:51,115 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:37:51,115 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:37:51,117 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:37:51,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:37:51,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1518561956, now seen corresponding path program 1 times [2018-10-26 22:37:51,126 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 22:37:51,127 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/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 [2018-10-26 22:37:51,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:37:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:37:51,196 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:37:51,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:37:51,208 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:37:51,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:37:51,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 22:37:51,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:37:51,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:37:51,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:37:51,226 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2018-10-26 22:37:51,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:37:51,241 INFO L93 Difference]: Finished difference Result 46 states and 57 transitions. [2018-10-26 22:37:51,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:37:51,242 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-10-26 22:37:51,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:37:51,248 INFO L225 Difference]: With dead ends: 46 [2018-10-26 22:37:51,248 INFO L226 Difference]: Without dead ends: 19 [2018-10-26 22:37:51,251 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 [2018-10-26 22:37:51,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-10-26 22:37:51,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-10-26 22:37:51,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-26 22:37:51,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-10-26 22:37:51,281 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2018-10-26 22:37:51,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:37:51,282 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-10-26 22:37:51,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:37:51,282 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-10-26 22:37:51,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-26 22:37:51,283 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:37:51,283 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:37:51,284 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:37:51,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:37:51,285 INFO L82 PathProgramCache]: Analyzing trace with hash 876523911, now seen corresponding path program 1 times [2018-10-26 22:37:51,285 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 22:37:51,285 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/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 [2018-10-26 22:37:51,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:37:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:37:51,333 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:37:51,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:37:51,366 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:37:51,368 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:37:51,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:37:51,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 22:37:51,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 22:37:51,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:37:51,370 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-10-26 22:37:51,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:37:51,464 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-10-26 22:37:51,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 22:37:51,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-26 22:37:51,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:37:51,467 INFO L225 Difference]: With dead ends: 32 [2018-10-26 22:37:51,467 INFO L226 Difference]: Without dead ends: 26 [2018-10-26 22:37:51,468 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 [2018-10-26 22:37:51,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-10-26 22:37:51,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2018-10-26 22:37:51,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-10-26 22:37:51,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-10-26 22:37:51,471 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 13 [2018-10-26 22:37:51,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:37:51,471 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-10-26 22:37:51,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 22:37:51,472 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-10-26 22:37:51,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 22:37:51,472 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:37:51,472 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:37:51,472 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:37:51,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:37:51,473 INFO L82 PathProgramCache]: Analyzing trace with hash 69324171, now seen corresponding path program 1 times [2018-10-26 22:37:51,473 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 22:37:51,473 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/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 [2018-10-26 22:37:51,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:37:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:37:51,519 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:37:51,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:37:51,630 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:37:51,632 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:37:51,632 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 22:37:51,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:37:51,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:37:51,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:37:51,633 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 4 states. [2018-10-26 22:37:51,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:37:51,761 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2018-10-26 22:37:51,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:37:51,766 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-10-26 22:37:51,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:37:51,766 INFO L225 Difference]: With dead ends: 36 [2018-10-26 22:37:51,766 INFO L226 Difference]: Without dead ends: 23 [2018-10-26 22:37:51,767 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:37:51,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-26 22:37:51,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-10-26 22:37:51,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-26 22:37:51,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2018-10-26 22:37:51,773 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 18 [2018-10-26 22:37:51,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:37:51,773 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2018-10-26 22:37:51,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:37:51,773 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2018-10-26 22:37:51,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 22:37:51,774 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:37:51,774 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] [2018-10-26 22:37:51,774 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:37:51,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:37:51,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1276771180, now seen corresponding path program 1 times [2018-10-26 22:37:51,775 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 22:37:51,775 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/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 [2018-10-26 22:37:51,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:37:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:37:51,953 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:37:52,084 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 [2018-10-26 22:37:52,107 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 [2018-10-26 22:37:52,107 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:37:52,119 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:37:52,121 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:37:52,121 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-10-26 22:37:52,175 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:37:52,176 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 22:37:52,397 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 [2018-10-26 22:37:54,422 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|) [2018-10-26 22:37:54,442 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:37:54,444 INFO L303 Elim1Store]: Index analysis took 2045 ms [2018-10-26 22:37:54,445 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 [2018-10-26 22:37:54,447 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:37:54,467 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:37:54,495 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:37:54,495 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:13 [2018-10-26 22:37:54,887 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:37:54,892 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:37:54,892 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/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 [2018-10-26 22:37:54,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:37:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:37:54,946 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:37:55,284 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 [2018-10-26 22:37:55,304 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 [2018-10-26 22:37:55,304 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:37:55,308 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:37:55,333 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:37:55,334 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:31, output treesize:10 [2018-10-26 22:37:55,352 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 [2018-10-26 22:37:55,360 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 [2018-10-26 22:37:55,361 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:37:55,362 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:37:55,364 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:37:55,364 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2018-10-26 22:37:55,368 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:37:55,369 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 22:37:57,704 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 [2018-10-26 22:37:57,865 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 16 [2018-10-26 22:37:57,879 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 [2018-10-26 22:37:57,880 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:37:57,954 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:37:58,024 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. [2018-10-26 22:37:58,025 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:20, output treesize:13 [2018-10-26 22:38:00,371 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:38:00,399 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-10-26 22:38:00,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 9] total 19 [2018-10-26 22:38:00,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-26 22:38:00,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-26 22:38:00,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=278, Unknown=2, NotChecked=0, Total=342 [2018-10-26 22:38:00,401 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand 19 states. [2018-10-26 22:38:01,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:38:01,077 INFO L93 Difference]: Finished difference Result 44 states and 49 transitions. [2018-10-26 22:38:01,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 22:38:01,080 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2018-10-26 22:38:01,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:38:01,081 INFO L225 Difference]: With dead ends: 44 [2018-10-26 22:38:01,081 INFO L226 Difference]: Without dead ends: 38 [2018-10-26 22:38:01,082 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=96, Invalid=408, Unknown=2, NotChecked=0, Total=506 [2018-10-26 22:38:01,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-10-26 22:38:01,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2018-10-26 22:38:01,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-10-26 22:38:01,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2018-10-26 22:38:01,088 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 22 [2018-10-26 22:38:01,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:38:01,088 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2018-10-26 22:38:01,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-26 22:38:01,088 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2018-10-26 22:38:01,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 22:38:01,089 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:38:01,089 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] [2018-10-26 22:38:01,089 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:38:01,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:38:01,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1018605742, now seen corresponding path program 1 times [2018-10-26 22:38:01,090 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 22:38:01,090 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/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 [2018-10-26 22:38:01,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:38:01,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:38:01,188 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:38:01,267 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 [2018-10-26 22:38:01,270 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 [2018-10-26 22:38:01,270 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:38:01,277 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:38:01,278 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:38:01,279 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-10-26 22:38:01,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:38:01,335 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 22:38:01,500 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 [2018-10-26 22:38:03,547 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|) [2018-10-26 22:38:03,558 INFO L682 Elim1Store]: detected equality via solver [2018-10-26 22:38:03,560 INFO L303 Elim1Store]: Index analysis took 2059 ms [2018-10-26 22:38:03,561 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 [2018-10-26 22:38:03,563 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-10-26 22:38:03,661 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-10-26 22:38:03,755 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. [2018-10-26 22:38:03,755 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:25, output treesize:20 [2018-10-26 22:38:04,172 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-26 22:38:04,497 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:38:04,499 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:38:04,499 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/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 [2018-10-26 22:38:04,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:38:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:38:04,539 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:38:04,646 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 [2018-10-26 22:38:04,648 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 [2018-10-26 22:38:04,649 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:38:04,651 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:38:04,657 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:38:04,658 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:11 [2018-10-26 22:38:04,680 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 [2018-10-26 22:38:04,700 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 [2018-10-26 22:38:04,700 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:38:04,702 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:38:04,704 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:38:04,704 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-10-26 22:38:04,737 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:38:04,737 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 22:38:04,878 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 [2018-10-26 22:38:04,984 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 [2018-10-26 22:38:04,984 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:38:05,118 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-26 22:38:05,224 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. [2018-10-26 22:38:05,225 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:24, output treesize:13 [2018-10-26 22:38:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:38:05,593 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-10-26 22:38:05,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9] total 21 [2018-10-26 22:38:05,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-26 22:38:05,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-26 22:38:05,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2018-10-26 22:38:05,594 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand 21 states. [2018-10-26 22:38:06,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:38:06,494 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2018-10-26 22:38:06,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-26 22:38:06,494 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 22 [2018-10-26 22:38:06,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:38:06,495 INFO L225 Difference]: With dead ends: 57 [2018-10-26 22:38:06,495 INFO L226 Difference]: Without dead ends: 49 [2018-10-26 22:38:06,496 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2018-10-26 22:38:06,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-10-26 22:38:06,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2018-10-26 22:38:06,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-26 22:38:06,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2018-10-26 22:38:06,501 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 22 [2018-10-26 22:38:06,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:38:06,501 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2018-10-26 22:38:06,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-10-26 22:38:06,501 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2018-10-26 22:38:06,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-26 22:38:06,502 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:38:06,502 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] [2018-10-26 22:38:06,503 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:38:06,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:38:06,503 INFO L82 PathProgramCache]: Analyzing trace with hash 394711079, now seen corresponding path program 2 times [2018-10-26 22:38:06,503 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-10-26 22:38:06,504 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/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 [2018-10-26 22:38:06,516 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-10-26 22:38:06,631 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-26 22:38:06,631 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 22:38:06,664 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:38:06,689 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-26 22:38:06,689 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 22:38:06,710 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-26 22:38:06,713 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:38:06,713 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/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 [2018-10-26 22:38:06,737 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-26 22:38:06,773 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-26 22:38:06,773 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 22:38:06,779 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:38:06,784 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-26 22:38:06,784 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 22:38:06,813 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-26 22:38:06,832 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-10-26 22:38:06,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4] total 6 [2018-10-26 22:38:06,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:38:06,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:38:06,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:38:06,833 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand 6 states. [2018-10-26 22:38:06,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:38:06,864 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2018-10-26 22:38:06,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:38:06,865 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-10-26 22:38:06,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:38:06,865 INFO L225 Difference]: With dead ends: 41 [2018-10-26 22:38:06,866 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 22:38:06,866 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 [2018-10-26 22:38:06,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 22:38:06,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 22:38:06,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 22:38:06,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 22:38:06,867 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-10-26 22:38:06,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:38:06,867 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 22:38:06,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:38:06,867 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 22:38:06,867 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 22:38:06,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 22:38:07,137 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 13 [2018-10-26 22:38:07,283 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:38:07,283 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 22:38:07,283 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:38:07,284 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 22:38:07,284 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 22:38:07,284 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 22:38:07,284 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 22:38:07,284 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 31) no Hoare annotation was computed. [2018-10-26 22:38:07,284 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 26) no Hoare annotation was computed. [2018-10-26 22:38:07,284 INFO L425 ceAbstractionStarter]: For program point L19-3(lines 19 26) no Hoare annotation was computed. [2018-10-26 22:38:07,284 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))) [2018-10-26 22:38:07,284 INFO L425 ceAbstractionStarter]: For program point L19-5(lines 19 26) no Hoare annotation was computed. [2018-10-26 22:38:07,284 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 31) no Hoare annotation was computed. [2018-10-26 22:38:07,284 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 31) the Hoare annotation is: true [2018-10-26 22:38:07,284 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)) [2018-10-26 22:38:07,285 INFO L425 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2018-10-26 22:38:07,285 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 25) no Hoare annotation was computed. [2018-10-26 22:38:07,285 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 26) no Hoare annotation was computed. [2018-10-26 22:38:07,285 INFO L425 ceAbstractionStarter]: For program point L20-3(lines 20 26) no Hoare annotation was computed. [2018-10-26 22:38:07,285 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))) [2018-10-26 22:38:07,285 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-26 22:38:07,285 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-26 22:38:07,285 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-26 22:38:07,285 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-26 22:38:07,285 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-26 22:38:07,285 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-26 22:38:07,291 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:38:07,295 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:38:07,296 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:38:07,296 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:38:07,297 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:38:07,297 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:38:07,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:38:07 BoogieIcfgContainer [2018-10-26 22:38:07,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:38:07,299 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:38:07,300 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:38:07,300 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:38:07,300 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:37:51" (3/4) ... [2018-10-26 22:38:07,305 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 22:38:07,310 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 22:38:07,311 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 22:38:07,311 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 22:38:07,315 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2018-10-26 22:38:07,315 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-10-26 22:38:07,315 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 22:38:07,352 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c15beb40-7c70-4c84-805f-335c83720eb7/bin-2019/utaipan/witness.graphml [2018-10-26 22:38:07,352 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:38:07,353 INFO L168 Benchmark]: Toolchain (without parser) took 17120.66 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 232.3 MB). Free memory was 953.2 MB in the beginning and 1.2 GB in the end (delta: -221.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2018-10-26 22:38:07,354 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-10-26 22:38:07,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.85 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:38:07,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.85 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 22:38:07,355 INFO L168 Benchmark]: Boogie Preprocessor took 36.01 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:38:07,355 INFO L168 Benchmark]: RCFGBuilder took 492.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.2 MB). Free memory was 937.1 MB in the beginning and 1.2 GB in the end (delta: -227.3 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2018-10-26 22:38:07,357 INFO L168 Benchmark]: TraceAbstraction took 16264.16 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 44.0 MB). Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -16.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-10-26 22:38:07,358 INFO L168 Benchmark]: Witness Printer took 52.66 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-10-26 22:38:07,360 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 232.85 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 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 37.85 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.01 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 492.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 188.2 MB). Free memory was 937.1 MB in the beginning and 1.2 GB in the end (delta: -227.3 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16264.16 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 44.0 MB). Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -16.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 52.66 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. 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 [2018-10-26 22:38:07,366 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:38:07,367 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 [2018-10-26 22:38:07,368 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:38:07,368 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:38:07,368 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 22:38:07,369 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, 16.2s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 108 SDtfs, 67 SDslu, 321 SDs, 0 SdLazy, 288 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 346 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 7.7s 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, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 13.0s 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...