./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float8_true-unreach-call.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_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float8_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/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 b40554704e1a1d546b5e4595d3df0dfa2abf21e3 ............................................................................................................................................................................ 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_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float8_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/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 b40554704e1a1d546b5e4595d3df0dfa2abf21e3 ......................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:57:29,002 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:57:29,004 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:57:29,013 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:57:29,013 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:57:29,015 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:57:29,021 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:57:29,023 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:57:29,024 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:57:29,025 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:57:29,026 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:57:29,026 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:57:29,028 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:57:29,028 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:57:29,029 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:57:29,030 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:57:29,031 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:57:29,033 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:57:29,035 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:57:29,036 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:57:29,037 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:57:29,038 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:57:29,041 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:57:29,041 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:57:29,042 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:57:29,042 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:57:29,043 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:57:29,045 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:57:29,046 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:57:29,047 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:57:29,047 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:57:29,047 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:57:29,048 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:57:29,049 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:57:29,050 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:57:29,050 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:57:29,051 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-27 00:57:29,064 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:57:29,065 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:57:29,065 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:57:29,066 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:57:29,066 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:57:29,066 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:57:29,066 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:57:29,066 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:57:29,067 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:57:29,067 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:57:29,067 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:57:29,068 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:57:29,069 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:57:29,069 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:57:29,070 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:57:29,070 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:57:29,070 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:57:29,070 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:57:29,070 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:57:29,071 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:57:29,071 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:57:29,071 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:57:29,071 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:57:29,071 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:57:29,072 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:57:29,072 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:57:29,072 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:57:29,072 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:57:29,072 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:57:29,073 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:57:29,073 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:57:29,073 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:57:29,073 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:57:29,073 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:57:29,073 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_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/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 -> b40554704e1a1d546b5e4595d3df0dfa2abf21e3 [2018-10-27 00:57:29,108 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:57:29,119 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:57:29,123 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:57:29,125 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:57:29,125 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:57:29,126 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float8_true-unreach-call.i [2018-10-27 00:57:29,180 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/data/196ee08b0/45e882f39bee412892162969ea9e61c3/FLAG3f380b318 [2018-10-27 00:57:29,656 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:57:29,657 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/sv-benchmarks/c/floats-cbmc-regression/float8_true-unreach-call.i [2018-10-27 00:57:29,666 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/data/196ee08b0/45e882f39bee412892162969ea9e61c3/FLAG3f380b318 [2018-10-27 00:57:29,677 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/data/196ee08b0/45e882f39bee412892162969ea9e61c3 [2018-10-27 00:57:29,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:57:29,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:57:29,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:57:29,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:57:29,685 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:57:29,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:57:29" (1/1) ... [2018-10-27 00:57:29,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c72322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:29, skipping insertion in model container [2018-10-27 00:57:29,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:57:29" (1/1) ... [2018-10-27 00:57:29,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:57:29,737 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:57:30,238 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: finite at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:838) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1349) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:995) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2169) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.dispatchDecaySwitchToRValueFunctionArgument(ExpressionResultTransformer.java:113) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleVerifierAssume(StandardFunctionHandler.java:1053) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1349) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1300) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) 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.PRDispatcher.dispatch(PRDispatcher.java:232) 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.PRDispatcher.dispatch(PRDispatcher.java:155) 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.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:188) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-27 00:57:30,242 INFO L168 Benchmark]: Toolchain (without parser) took 561.66 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 944.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:57:30,244 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:57:30,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 559.77 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 944.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:57:30,248 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 559.77 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 944.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: finite de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: finite: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:838) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:57:32,309 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:57:32,311 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:57:32,323 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:57:32,324 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:57:32,326 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:57:32,328 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:57:32,330 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:57:32,333 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:57:32,335 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:57:32,337 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:57:32,337 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:57:32,338 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:57:32,339 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:57:32,339 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:57:32,340 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:57:32,341 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:57:32,342 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:57:32,344 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:57:32,352 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:57:32,353 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:57:32,354 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:57:32,356 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:57:32,356 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:57:32,357 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:57:32,358 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:57:32,359 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:57:32,359 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:57:32,360 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:57:32,361 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:57:32,361 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:57:32,362 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:57:32,362 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:57:32,362 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:57:32,363 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:57:32,364 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:57:32,365 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-27 00:57:32,378 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:57:32,378 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:57:32,379 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:57:32,379 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:57:32,379 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:57:32,379 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:57:32,379 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:57:32,380 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:57:32,381 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:57:32,381 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:57:32,382 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:57:32,382 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:57:32,382 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:57:32,382 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:57:32,382 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:57:32,382 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-27 00:57:32,382 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-27 00:57:32,383 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:57:32,383 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:57:32,383 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:57:32,383 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:57:32,383 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:57:32,383 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:57:32,384 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:57:32,384 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:57:32,386 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:57:32,386 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:57:32,386 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:57:32,386 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-27 00:57:32,386 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:57:32,386 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-27 00:57:32,387 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-27 00:57:32,387 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_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/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 -> b40554704e1a1d546b5e4595d3df0dfa2abf21e3 [2018-10-27 00:57:32,440 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:57:32,454 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:57:32,458 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:57:32,459 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:57:32,460 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:57:32,461 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float8_true-unreach-call.i [2018-10-27 00:57:32,516 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/data/af400bad2/61714639b6704260944456e792263475/FLAG701b2f43e [2018-10-27 00:57:33,084 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:57:33,085 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/sv-benchmarks/c/floats-cbmc-regression/float8_true-unreach-call.i [2018-10-27 00:57:33,096 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/data/af400bad2/61714639b6704260944456e792263475/FLAG701b2f43e [2018-10-27 00:57:33,111 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/data/af400bad2/61714639b6704260944456e792263475 [2018-10-27 00:57:33,115 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:57:33,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:57:33,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:57:33,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:57:33,122 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:57:33,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:57:33" (1/1) ... [2018-10-27 00:57:33,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9624b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:33, skipping insertion in model container [2018-10-27 00:57:33,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:57:33" (1/1) ... [2018-10-27 00:57:33,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:57:33,185 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:57:33,768 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:57:33,773 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:57:33,805 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:57:34,102 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:57:34,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:34 WrapperNode [2018-10-27 00:57:34,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:57:34,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:57:34,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:57:34,104 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:57:34,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:34" (1/1) ... [2018-10-27 00:57:34,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:34" (1/1) ... [2018-10-27 00:57:34,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:57:34,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:57:34,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:57:34,146 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:57:34,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:34" (1/1) ... [2018-10-27 00:57:34,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:34" (1/1) ... [2018-10-27 00:57:34,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:34" (1/1) ... [2018-10-27 00:57:34,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:34" (1/1) ... [2018-10-27 00:57:34,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:34" (1/1) ... [2018-10-27 00:57:34,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:34" (1/1) ... [2018-10-27 00:57:34,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:34" (1/1) ... [2018-10-27 00:57:34,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:57:34,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:57:34,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:57:34,169 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:57:34,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:57:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:57:34,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:57:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:57:34,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:57:34,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:57:34,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:57:34,522 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:57:34,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:57:34 BoogieIcfgContainer [2018-10-27 00:57:34,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:57:34,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:57:34,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:57:34,528 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:57:34,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:57:33" (1/3) ... [2018-10-27 00:57:34,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c946ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:57:34, skipping insertion in model container [2018-10-27 00:57:34,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:57:34" (2/3) ... [2018-10-27 00:57:34,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c946ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:57:34, skipping insertion in model container [2018-10-27 00:57:34,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:57:34" (3/3) ... [2018-10-27 00:57:34,538 INFO L112 eAbstractionObserver]: Analyzing ICFG float8_true-unreach-call.i [2018-10-27 00:57:34,559 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:57:34,568 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:57:34,589 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:57:34,621 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 00:57:34,622 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:57:34,622 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:57:34,622 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:57:34,622 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:57:34,622 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:57:34,623 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:57:34,623 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:57:34,623 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:57:34,637 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-10-27 00:57:34,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-27 00:57:34,642 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:57:34,643 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:57:34,646 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:57:34,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:57:34,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1564967178, now seen corresponding path program 1 times [2018-10-27 00:57:34,655 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:57:34,656 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-27 00:57:34,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:57:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:57:34,770 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:57:34,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:57:34,788 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:57:34,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:57:34,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:57:34,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:57:34,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:57:34,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:57:34,820 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2018-10-27 00:57:34,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:57:34,838 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2018-10-27 00:57:34,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:57:34,840 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-10-27 00:57:34,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:57:34,850 INFO L225 Difference]: With dead ends: 25 [2018-10-27 00:57:34,850 INFO L226 Difference]: Without dead ends: 12 [2018-10-27 00:57:34,854 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:57:34,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-10-27 00:57:34,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-10-27 00:57:34,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-10-27 00:57:34,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-10-27 00:57:34,887 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2018-10-27 00:57:34,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:57:34,887 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-10-27 00:57:34,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:57:34,888 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-10-27 00:57:34,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 00:57:34,888 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:57:34,888 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:57:34,889 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:57:34,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:57:34,889 INFO L82 PathProgramCache]: Analyzing trace with hash 746469508, now seen corresponding path program 1 times [2018-10-27 00:57:34,890 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:57:34,890 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-10-27 00:57:34,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:57:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:57:35,695 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:57:36,081 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-27 00:57:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:57:36,089 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:57:36,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:57:36,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 00:57:36,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 00:57:36,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 00:57:36,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:57:36,104 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 5 states. [2018-10-27 00:57:36,468 WARN L179 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-10-27 00:57:36,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:57:36,478 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-10-27 00:57:36,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 00:57:36,479 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-10-27 00:57:36,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:57:36,480 INFO L225 Difference]: With dead ends: 12 [2018-10-27 00:57:36,480 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 00:57:36,481 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:57:36,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 00:57:36,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 00:57:36,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 00:57:36,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 00:57:36,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-10-27 00:57:36,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:57:36,482 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 00:57:36,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 00:57:36,482 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 00:57:36,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:57:36,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 00:57:36,520 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-27 00:57:36,520 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:57:36,520 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:57:36,520 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 00:57:36,520 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:57:36,520 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:57:36,520 INFO L425 ceAbstractionStarter]: For program point L959(line 959) no Hoare annotation was computed. [2018-10-27 00:57:36,521 INFO L425 ceAbstractionStarter]: For program point L959-1(line 959) no Hoare annotation was computed. [2018-10-27 00:57:36,521 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 952 960) the Hoare annotation is: true [2018-10-27 00:57:36,521 INFO L425 ceAbstractionStarter]: For program point L956(line 956) no Hoare annotation was computed. [2018-10-27 00:57:36,521 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 959) no Hoare annotation was computed. [2018-10-27 00:57:36,521 INFO L425 ceAbstractionStarter]: For program point L959-3(lines 952 960) no Hoare annotation was computed. [2018-10-27 00:57:36,521 INFO L425 ceAbstractionStarter]: For program point L956-2(line 956) no Hoare annotation was computed. [2018-10-27 00:57:36,521 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 952 960) no Hoare annotation was computed. [2018-10-27 00:57:36,521 INFO L425 ceAbstractionStarter]: For program point L956-4(line 956) no Hoare annotation was computed. [2018-10-27 00:57:36,522 INFO L425 ceAbstractionStarter]: For program point L956-5(line 956) no Hoare annotation was computed. [2018-10-27 00:57:36,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:57:36 BoogieIcfgContainer [2018-10-27 00:57:36,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:57:36,528 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:57:36,528 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:57:36,529 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:57:36,529 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:57:34" (3/4) ... [2018-10-27 00:57:36,537 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:57:36,543 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 00:57:36,543 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 00:57:36,547 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-10-27 00:57:36,548 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 00:57:36,548 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 00:57:36,593 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_989ac3e5-3275-4aeb-8356-58a3ca0f0fe2/bin-2019/utaipan/witness.graphml [2018-10-27 00:57:36,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:57:36,594 INFO L168 Benchmark]: Toolchain (without parser) took 3479.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -146.9 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-10-27 00:57:36,595 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 978.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:57:36,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 985.75 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 840.5 MB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:57:36,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.60 ms. Allocated memory is still 1.0 GB. Free memory was 840.5 MB in the beginning and 835.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:57:36,597 INFO L168 Benchmark]: Boogie Preprocessor took 22.56 ms. Allocated memory is still 1.0 GB. Free memory is still 835.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:57:36,597 INFO L168 Benchmark]: RCFGBuilder took 354.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 835.1 MB in the beginning and 1.2 GB in the end (delta: -315.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-10-27 00:57:36,598 INFO L168 Benchmark]: TraceAbstraction took 1999.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 55.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 11.5 GB. [2018-10-27 00:57:36,598 INFO L168 Benchmark]: Witness Printer took 65.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:57:36,601 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 978.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 985.75 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 840.5 MB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.60 ms. Allocated memory is still 1.0 GB. Free memory was 840.5 MB in the beginning and 835.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.56 ms. Allocated memory is still 1.0 GB. Free memory is still 835.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 354.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 835.1 MB in the beginning and 1.2 GB in the end (delta: -315.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1999.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 55.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 11.5 GB. * Witness Printer took 65.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 959]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 1 SDslu, 16 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 1014 SizeOfPredicates, 4 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...