./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/invert_string_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_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/invert_string_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/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 60adf12976c621166b8ffd5e872004e7d6c30802 .................................................................................................................................................................................... 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_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/invert_string_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/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 60adf12976c621166b8ffd5e872004e7d6c30802 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_15 term size 74 --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 11:44:56,426 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:44:56,428 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:44:56,434 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:44:56,434 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:44:56,435 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:44:56,436 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:44:56,437 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:44:56,438 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:44:56,439 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:44:56,439 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:44:56,440 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:44:56,440 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:44:56,441 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:44:56,442 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:44:56,442 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:44:56,443 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:44:56,444 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:44:56,446 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:44:56,447 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:44:56,448 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:44:56,449 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:44:56,450 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:44:56,451 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:44:56,451 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:44:56,452 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:44:56,452 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:44:56,453 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:44:56,454 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:44:56,455 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:44:56,455 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:44:56,455 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:44:56,455 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:44:56,456 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:44:56,456 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:44:56,457 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:44:56,457 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 11:44:56,466 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:44:56,466 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:44:56,467 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:44:56,467 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 11:44:56,468 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 11:44:56,468 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 11:44:56,468 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 11:44:56,468 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 11:44:56,468 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 11:44:56,468 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 11:44:56,468 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 11:44:56,469 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:44:56,469 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 11:44:56,469 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:44:56,470 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 11:44:56,470 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:44:56,470 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:44:56,470 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:44:56,470 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:44:56,470 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 11:44:56,470 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:44:56,471 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:44:56,471 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:44:56,471 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:44:56,471 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:44:56,471 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 11:44:56,471 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:44:56,472 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:44:56,472 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:44:56,472 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:44:56,472 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 11:44:56,472 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:44:56,472 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 11:44:56,473 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 11:44:56,473 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_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/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 -> 60adf12976c621166b8ffd5e872004e7d6c30802 [2018-11-10 11:44:56,500 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:44:56,510 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:44:56,512 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:44:56,513 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:44:56,513 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:44:56,514 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/../../sv-benchmarks/c/loops/invert_string_true-unreach-call_true-termination.i [2018-11-10 11:44:56,554 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/data/34760b12d/38f0c678522d4ae4ba445b5796d95a34/FLAG3d79074de [2018-11-10 11:44:56,872 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:44:56,872 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/sv-benchmarks/c/loops/invert_string_true-unreach-call_true-termination.i [2018-11-10 11:44:56,876 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/data/34760b12d/38f0c678522d4ae4ba445b5796d95a34/FLAG3d79074de [2018-11-10 11:44:56,888 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/data/34760b12d/38f0c678522d4ae4ba445b5796d95a34 [2018-11-10 11:44:56,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:44:56,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:44:56,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:44:56,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:44:56,896 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:44:56,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:44:56" (1/1) ... [2018-11-10 11:44:56,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61258a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:56, skipping insertion in model container [2018-11-10 11:44:56,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:44:56" (1/1) ... [2018-11-10 11:44:56,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:44:56,918 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:44:57,021 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:44:57,024 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:44:57,034 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.constructBytesizeExpression(TypeSizeAndOffsetComputer.java:120) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.MemoryHandler.calculateSizeOf(MemoryHandler.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.MemoryHandler.getMallocCall(MemoryHandler.java:514) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:2686) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1876) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1011) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:318) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:960) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:332) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:364) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:287) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3316) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:537) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainDispatcher.dispatch(MainDispatcher.java:268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.performMainRun(MainTranslator.java:228) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-10 11:44:57,037 INFO L168 Benchmark]: Toolchain (without parser) took 144.97 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:44:57,038 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:44:57,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.12 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:44:57,041 INFO L336 ainManager$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 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 143.12 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractBooleanValue(TypeSizes.java:432) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 11:44:58,324 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:44:58,325 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:44:58,333 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:44:58,333 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:44:58,334 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:44:58,335 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:44:58,336 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:44:58,337 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:44:58,338 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:44:58,339 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:44:58,339 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:44:58,340 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:44:58,340 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:44:58,342 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:44:58,342 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:44:58,343 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:44:58,344 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:44:58,346 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:44:58,347 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:44:58,348 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:44:58,349 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:44:58,351 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:44:58,351 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:44:58,352 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:44:58,352 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:44:58,354 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:44:58,354 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:44:58,355 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:44:58,356 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:44:58,356 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:44:58,356 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:44:58,356 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:44:58,357 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:44:58,358 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:44:58,358 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:44:58,358 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 11:44:58,369 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:44:58,369 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:44:58,370 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:44:58,370 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 11:44:58,371 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 11:44:58,371 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 11:44:58,371 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 11:44:58,371 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 11:44:58,371 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:44:58,372 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 11:44:58,372 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 11:44:58,372 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:44:58,372 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:44:58,372 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:44:58,372 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:44:58,372 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 11:44:58,372 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 11:44:58,374 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 11:44:58,374 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:44:58,374 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:44:58,374 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:44:58,374 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:44:58,375 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:44:58,375 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 11:44:58,375 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:44:58,375 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:44:58,375 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:44:58,375 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:44:58,375 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 11:44:58,376 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:44:58,376 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 11:44:58,376 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 11:44:58,376 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_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/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 -> 60adf12976c621166b8ffd5e872004e7d6c30802 [2018-11-10 11:44:58,404 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:44:58,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:44:58,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:44:58,415 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:44:58,416 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:44:58,416 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/../../sv-benchmarks/c/loops/invert_string_true-unreach-call_true-termination.i [2018-11-10 11:44:58,455 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/data/af1e040db/7ba276ff2a7a4738a1e3b4305293d534/FLAG2b3358fa0 [2018-11-10 11:44:58,757 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:44:58,757 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/sv-benchmarks/c/loops/invert_string_true-unreach-call_true-termination.i [2018-11-10 11:44:58,761 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/data/af1e040db/7ba276ff2a7a4738a1e3b4305293d534/FLAG2b3358fa0 [2018-11-10 11:44:58,770 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/data/af1e040db/7ba276ff2a7a4738a1e3b4305293d534 [2018-11-10 11:44:58,773 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:44:58,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:44:58,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:44:58,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:44:58,777 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:44:58,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:44:58" (1/1) ... [2018-11-10 11:44:58,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2450769d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:58, skipping insertion in model container [2018-11-10 11:44:58,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:44:58" (1/1) ... [2018-11-10 11:44:58,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:44:58,798 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:44:58,909 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:44:58,911 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:44:58,928 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:44:58,942 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:44:58,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:58 WrapperNode [2018-11-10 11:44:58,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:44:58,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 11:44:58,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 11:44:58,944 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 11:44:58,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:58" (1/1) ... [2018-11-10 11:44:58,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:58" (1/1) ... [2018-11-10 11:44:58,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 11:44:58,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:44:58,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:44:58,971 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:44:58,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:58" (1/1) ... [2018-11-10 11:44:58,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:58" (1/1) ... [2018-11-10 11:44:58,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:58" (1/1) ... [2018-11-10 11:44:58,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:58" (1/1) ... [2018-11-10 11:44:58,984 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:58" (1/1) ... [2018-11-10 11:44:58,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:58" (1/1) ... [2018-11-10 11:44:58,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:58" (1/1) ... [2018-11-10 11:44:58,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:44:58,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:44:58,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:44:58,994 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:44:58,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:44:59,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 11:44:59,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 11:44:59,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:44:59,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:44:59,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 11:44:59,087 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 11:44:59,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 11:44:59,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 11:44:59,261 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:44:59,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:44:59 BoogieIcfgContainer [2018-11-10 11:44:59,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:44:59,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 11:44:59,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 11:44:59,264 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 11:44:59,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:44:58" (1/3) ... [2018-11-10 11:44:59,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0e7ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:44:59, skipping insertion in model container [2018-11-10 11:44:59,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:44:58" (2/3) ... [2018-11-10 11:44:59,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0e7ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:44:59, skipping insertion in model container [2018-11-10 11:44:59,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:44:59" (3/3) ... [2018-11-10 11:44:59,274 INFO L112 eAbstractionObserver]: Analyzing ICFG invert_string_true-unreach-call_true-termination.i [2018-11-10 11:44:59,282 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 11:44:59,288 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 11:44:59,297 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 11:44:59,316 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 11:44:59,317 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 11:44:59,317 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 11:44:59,317 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 11:44:59,317 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:44:59,318 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:44:59,318 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 11:44:59,318 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:44:59,318 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 11:44:59,332 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-10 11:44:59,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 11:44:59,337 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:44:59,337 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:44:59,339 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:44:59,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:44:59,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1989464865, now seen corresponding path program 1 times [2018-11-10 11:44:59,347 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:44:59,348 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:44:59,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:44:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:44:59,412 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:44:59,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:44:59,427 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:44:59,430 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:44:59,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 11:44:59,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 11:44:59,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 11:44:59,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 11:44:59,448 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-11-10 11:44:59,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:44:59,465 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2018-11-10 11:44:59,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 11:44:59,466 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-11-10 11:44:59,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:44:59,472 INFO L225 Difference]: With dead ends: 51 [2018-11-10 11:44:59,472 INFO L226 Difference]: Without dead ends: 25 [2018-11-10 11:44:59,475 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 11:44:59,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-10 11:44:59,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-10 11:44:59,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-10 11:44:59,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-11-10 11:44:59,500 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 16 [2018-11-10 11:44:59,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:44:59,500 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-11-10 11:44:59,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 11:44:59,501 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-11-10 11:44:59,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 11:44:59,501 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:44:59,501 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:44:59,502 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:44:59,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:44:59,502 INFO L82 PathProgramCache]: Analyzing trace with hash 971272842, now seen corresponding path program 1 times [2018-11-10 11:44:59,502 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:44:59,502 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:44:59,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:44:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:44:59,557 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:44:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:44:59,595 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:44:59,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:44:59,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 11:44:59,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 11:44:59,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 11:44:59,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:44:59,598 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 3 states. [2018-11-10 11:44:59,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:44:59,651 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2018-11-10 11:44:59,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 11:44:59,652 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-10 11:44:59,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:44:59,653 INFO L225 Difference]: With dead ends: 44 [2018-11-10 11:44:59,653 INFO L226 Difference]: Without dead ends: 28 [2018-11-10 11:44:59,653 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 11:44:59,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-10 11:44:59,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2018-11-10 11:44:59,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-10 11:44:59,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2018-11-10 11:44:59,657 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 18 [2018-11-10 11:44:59,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:44:59,657 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2018-11-10 11:44:59,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 11:44:59,657 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2018-11-10 11:44:59,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-10 11:44:59,658 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:44:59,658 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:44:59,658 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:44:59,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:44:59,659 INFO L82 PathProgramCache]: Analyzing trace with hash -714418193, now seen corresponding path program 1 times [2018-11-10 11:44:59,659 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:44:59,659 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:44:59,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:44:59,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:44:59,716 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:44:59,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:44:59,757 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:44:59,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:44:59,812 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:44:59,812 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:44:59,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:44:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:44:59,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:44:59,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 11:44:59,873 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:44:59,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-10 11:44:59,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2018-11-10 11:44:59,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 11:44:59,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 11:44:59,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-10 11:44:59,892 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 8 states. [2018-11-10 11:45:00,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:45:00,128 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2018-11-10 11:45:00,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 11:45:00,129 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2018-11-10 11:45:00,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:45:00,131 INFO L225 Difference]: With dead ends: 74 [2018-11-10 11:45:00,132 INFO L226 Difference]: Without dead ends: 58 [2018-11-10 11:45:00,132 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2018-11-10 11:45:00,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-10 11:45:00,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 41. [2018-11-10 11:45:00,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-10 11:45:00,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-11-10 11:45:00,143 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 21 [2018-11-10 11:45:00,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:45:00,143 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-11-10 11:45:00,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 11:45:00,143 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-11-10 11:45:00,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 11:45:00,144 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:45:00,144 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:45:00,144 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:45:00,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:45:00,145 INFO L82 PathProgramCache]: Analyzing trace with hash 270576394, now seen corresponding path program 1 times [2018-11-10 11:45:00,145 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:45:00,145 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/cvc4nyu Starting monitored process 6 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:45:00,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:45:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:45:00,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:45:00,300 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 11:45:00,300 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:45:00,443 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-10 11:45:00,445 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 11:45:00,445 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 11:45:00,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:45:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:45:00,482 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:45:00,547 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-10 11:45:00,547 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:45:00,754 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-11-10 11:45:00,772 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-10 11:45:00,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6, 7] total 21 [2018-11-10 11:45:00,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-10 11:45:00,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-10 11:45:00,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2018-11-10 11:45:00,773 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 21 states. [2018-11-10 11:45:01,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:45:01,391 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2018-11-10 11:45:01,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 11:45:01,392 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 36 [2018-11-10 11:45:01,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:45:01,393 INFO L225 Difference]: With dead ends: 100 [2018-11-10 11:45:01,393 INFO L226 Difference]: Without dead ends: 79 [2018-11-10 11:45:01,395 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2018-11-10 11:45:01,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-11-10 11:45:01,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 53. [2018-11-10 11:45:01,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-10 11:45:01,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2018-11-10 11:45:01,406 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 36 [2018-11-10 11:45:01,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:45:01,406 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2018-11-10 11:45:01,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-10 11:45:01,406 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2018-11-10 11:45:01,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-10 11:45:01,407 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:45:01,407 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 11:45:01,409 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:45:01,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:45:01,409 INFO L82 PathProgramCache]: Analyzing trace with hash 805826727, now seen corresponding path program 2 times [2018-11-10 11:45:01,410 INFO L225 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-10 11:45:01,410 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0165be57-4c4b-470a-b1ef-502e0fd6b4a5/bin-2019/utaipan/cvc4nyu Starting monitored process 8 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:45:01,428 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-10 11:45:01,662 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 11:45:01,663 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 11:45:01,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:45:01,781 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-11-10 11:45:01,781 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 11:45:01,790 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:45:01,790 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:21, output treesize:19 [2018-11-10 11:45:01,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-11-10 11:45:01,814 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 11 treesize of output 10 [2018-11-10 11:45:01,814 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:45:01,817 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:45:01,829 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 11:45:01,830 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:33, output treesize:29 [2018-11-10 11:45:01,888 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 18 [2018-11-10 11:45:01,892 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:01,895 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 25 [2018-11-10 11:45:01,895 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:45:01,905 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:45:01,926 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-10 11:45:01,926 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:43, output treesize:39 [2018-11-10 11:45:02,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 27 [2018-11-10 11:45:02,022 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,024 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,026 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,038 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 52 [2018-11-10 11:45:02,039 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:45:02,059 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:45:02,089 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-10 11:45:02,089 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:52, output treesize:48 [2018-11-10 11:45:02,220 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 36 [2018-11-10 11:45:02,227 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,229 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,231 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,233 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,235 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,236 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,250 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 89 [2018-11-10 11:45:02,250 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:45:02,276 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:45:02,311 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-10 11:45:02,311 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:65, output treesize:61 [2018-11-10 11:45:02,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 42 [2018-11-10 11:45:02,490 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,492 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,497 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,502 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,508 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,513 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,516 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,522 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,526 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,529 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,604 INFO L303 Elim1Store]: Index analysis took 120 ms [2018-11-10 11:45:02,605 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 121 [2018-11-10 11:45:02,606 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:45:02,645 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:45:02,685 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-11-10 11:45:02,686 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:68, output treesize:64 [2018-11-10 11:45:02,804 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 51 [2018-11-10 11:45:02,813 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,819 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,825 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,830 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,830 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:45:02,834 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,839 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,843 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,848 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,852 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,856 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:45:02,985 INFO L303 Elim1Store]: Index analysis took 178 ms [2018-11-10 11:45:02,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 130 [2018-11-10 11:45:02,987 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:45:03,027 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:45:03,074 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2018-11-10 11:45:03,074 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:87, output treesize:73 [2018-11-10 11:45:03,194 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 63 [2018-11-10 11:45:03,201 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 9 treesize of output 8 [2018-11-10 11:45:03,201 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:45:03,230 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:45:03,293 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2018-11-10 11:45:03,293 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:87, output treesize:83 [2018-11-10 11:45:03,574 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2018-11-10 11:45:03,595 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 21 [2018-11-10 11:45:03,596 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-10 11:45:03,655 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:45:03,790 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: 16 dim-0 vars, and 2 xjuncts. [2018-11-10 11:45:03,790 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:95, output treesize:175 [2018-11-10 11:45:04,083 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2018-11-10 11:45:04,256 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2018-11-10 11:45:04,278 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 21 [2018-11-10 11:45:04,278 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-10 11:45:04,341 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:45:04,488 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: 16 dim-0 vars, and 2 xjuncts. [2018-11-10 11:45:04,489 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:95, output treesize:175 [2018-11-10 11:45:04,783 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2018-11-10 11:45:04,967 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2018-11-10 11:45:04,989 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 21 [2018-11-10 11:45:04,989 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-10 11:45:05,048 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:45:05,186 INFO L267 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-2 vars, End of recursive call: 16 dim-0 vars, and 2 xjuncts. [2018-11-10 11:45:05,187 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 10 variables, input treesize:95, output treesize:175 [2018-11-10 11:45:05,473 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2018-11-10 11:45:05,652 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 79 [2018-11-10 11:45:05,681 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2018-11-10 11:45:05,681 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-11-10 11:45:05,743 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-10 11:45:05,866 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 12 dim-0 vars, and 2 xjuncts. [2018-11-10 11:45:05,866 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:95, output treesize:175 [2018-11-10 11:45:06,302 WARN L179 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 58 [2018-11-10 11:45:06,470 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 70 treesize of output 56 [2018-11-10 11:45:06,474 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 16 treesize of output 8 [2018-11-10 11:45:06,474 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 11:45:06,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 13 [2018-11-10 11:45:06,533 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 11:45:06,536 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 11:45:06,541 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-10 11:45:06,541 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 8 variables, input treesize:74, output treesize:13 [2018-11-10 11:45:06,821 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 11:45:06,821 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 11:46:01,424 WARN L179 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-11-10 11:46:30,286 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2018-11-10 11:47:03,185 WARN L179 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-11-10 11:47:45,708 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2018-11-10 11:48:29,814 WARN L179 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2018-11-10 11:49:25,003 WARN L179 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-11-10 11:50:21,629 WARN L179 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2018-11-10 11:51:24,640 WARN L179 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2018-11-10 11:51:25,707 WARN L179 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 98 [2018-11-10 11:51:27,346 INFO L303 Elim1Store]: Index analysis took 1637 ms [2018-11-10 11:51:29,427 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 691 treesize of output 465 [2018-11-10 11:51:39,437 WARN L179 SmtUtils]: Spent 10.00 s on a formula simplification. DAG size of input: 319 DAG size of output: 195 [2018-11-10 11:51:39,458 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 183 [2018-11-10 11:51:39,475 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,487 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 136 [2018-11-10 11:51:39,511 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,511 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,511 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,549 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 149 [2018-11-10 11:51:39,571 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,571 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,572 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,572 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,572 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,573 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,630 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 171 [2018-11-10 11:51:39,645 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,646 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,646 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,646 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,647 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,647 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,647 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,648 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,648 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,648 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,734 INFO L303 Elim1Store]: Index analysis took 102 ms [2018-11-10 11:51:39,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 202 [2018-11-10 11:51:39,760 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,760 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,761 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,761 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,775 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,776 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,776 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,797 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,798 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,806 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:51:39,918 INFO L303 Elim1Store]: Index analysis took 180 ms [2018-11-10 11:52:02,590 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 10 case distinctions, treesize of input 116 treesize of output 282 [2018-11-10 11:52:02,590 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-10 11:52:02,604 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 48 xjuncts. [2018-11-10 11:52:06,387 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:52:09,024 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:52:11,650 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:52:14,264 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:52:16,928 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:52:23,542 INFO L303 Elim1Store]: Index analysis took 409 ms [2018-11-10 11:52:23,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 430 treesize of output 400 [2018-11-10 11:52:23,727 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:23,885 INFO L303 Elim1Store]: Index analysis took 341 ms [2018-11-10 11:52:23,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 298 treesize of output 281 [2018-11-10 11:52:23,927 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:23,927 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:23,928 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:23,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 273 treesize of output 273 [2018-11-10 11:52:23,998 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:23,998 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:23,998 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:23,999 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:23,999 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:23,999 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:24,078 INFO L303 Elim1Store]: Index analysis took 101 ms [2018-11-10 11:52:24,079 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 274 [2018-11-10 11:52:24,164 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:24,164 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:24,164 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:24,165 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:24,165 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:24,165 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:24,166 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:24,166 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:24,166 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:24,167 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:25,238 INFO L303 Elim1Store]: Index analysis took 1157 ms [2018-11-10 11:52:25,239 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 284 [2018-11-10 11:52:25,338 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:25,338 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:25,339 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:25,339 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:25,393 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:25,393 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:25,393 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:25,436 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:25,437 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:25,486 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:52:26,399 INFO L303 Elim1Store]: Index analysis took 1157 ms [2018-11-10 11:52:43,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 10 case distinctions, treesize of input 198 treesize of output 371 [2018-11-10 11:52:43,289 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2018-11-10 11:52:43,303 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 72 xjuncts. [2018-11-10 11:52:53,890 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:52:59,361 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:53:00,762 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:53:01,461 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-11-10 11:53:02,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 99 treesize of output 95 [2018-11-10 11:53:02,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 87 treesize of output 83 [2018-11-10 11:53:02,588 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2018-11-10 11:53:02,733 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 77 treesize of output 101 [2018-11-10 11:54:06,682 WARN L179 SmtUtils]: Spent 1.07 m on a formula simplification. DAG size of input: 308 DAG size of output: 263 [2018-11-10 11:54:06,708 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:54:08,724 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (bvadd |main_~#str1~0.offset| main_~max~0 (_ bv4294967291 32)) (bvadd |main_~#str2~0.offset| main_~max~0 (_ bv4294967295 32))) [2018-11-10 11:54:10,921 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (bvadd |main_~#str2~0.offset| main_~max~0 (_ bv4294967295 32)) |main_~#str1~0.offset|) [2018-11-10 11:54:13,024 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimArr_15 (bvadd |main_~#str2~0.offset| main_~max~0 (_ bv4294967295 32))) (select v_arrayElimArr_15 (bvadd |main_~#str1~0.offset| main_~max~0 (_ bv4294967291 32)))) [2018-11-10 11:54:13,115 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 11:54:13,144 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 11:54:13,156 INFO L303 Elim1Store]: Index analysis took 6470 ms [2018-11-10 11:54:13,525 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-10 11:54:13,525 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_15 term size 74 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:418) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:290) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-10 11:54:13,528 INFO L168 Benchmark]: Toolchain (without parser) took 554754.55 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 239.6 MB). Free memory was 949.8 MB in the beginning and 1.2 GB in the end (delta: -226.1 MB). Peak memory consumption was 438.6 MB. Max. memory is 11.5 GB. [2018-11-10 11:54:13,528 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:54:13,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.70 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 937.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 11:54:13,529 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.27 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 11:54:13,529 INFO L168 Benchmark]: Boogie Preprocessor took 22.23 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:54:13,530 INFO L168 Benchmark]: RCFGBuilder took 267.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -172.4 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:54:13,530 INFO L168 Benchmark]: TraceAbstraction took 554265.43 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 112.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -70.9 MB). Peak memory consumption was 466.4 MB. Max. memory is 11.5 GB. [2018-11-10 11:54:13,532 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 168.70 ms. Allocated memory is still 1.0 GB. Free memory was 949.8 MB in the beginning and 937.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.27 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.23 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 267.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -172.4 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 554265.43 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 112.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -70.9 MB). Peak memory consumption was 466.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_15 term size 74 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_15 term size 74: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...