./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8_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_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/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 89d4ebbdb94875553cd06d49914ce211c6614dad ........................................................................................................................................................................................ 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_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/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 89d4ebbdb94875553cd06d49914ce211c6614dad ........................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:45:36,713 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:45:36,714 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:45:36,722 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:45:36,723 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:45:36,723 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:45:36,724 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:45:36,725 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:45:36,727 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:45:36,727 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:45:36,728 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:45:36,728 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:45:36,729 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:45:36,729 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:45:36,730 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:45:36,731 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:45:36,731 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:45:36,733 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:45:36,734 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:45:36,735 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:45:36,736 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:45:36,737 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:45:36,738 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:45:36,738 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:45:36,739 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:45:36,739 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:45:36,740 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:45:36,740 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:45:36,741 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:45:36,742 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:45:36,742 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:45:36,742 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:45:36,743 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:45:36,743 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:45:36,743 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:45:36,744 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:45:36,744 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 07:45:36,754 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:45:36,754 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:45:36,755 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:45:36,755 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 07:45:36,755 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 07:45:36,755 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 07:45:36,756 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 07:45:36,756 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 07:45:36,756 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 07:45:36,756 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 07:45:36,756 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 07:45:36,757 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:45:36,757 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:45:36,757 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:45:36,757 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:45:36,757 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:45:36,758 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:45:36,758 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:45:36,758 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:45:36,758 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:45:36,758 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:45:36,758 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:45:36,758 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:45:36,759 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:45:36,759 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:45:36,759 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:45:36,759 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:45:36,759 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:45:36,759 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:45:36,760 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:45:36,760 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 07:45:36,760 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:45:36,760 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:45:36,760 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 07:45:36,760 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_fc75275a-7ef8-4859-a37a-2a87b71dcda0/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 -> 89d4ebbdb94875553cd06d49914ce211c6614dad [2018-11-10 07:45:36,784 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:45:36,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:45:36,796 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:45:36,797 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:45:36,798 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:45:36,798 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8_true-unreach-call.i [2018-11-10 07:45:36,842 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/data/fcbd67d93/e70cfa0c03ab4a169d4dece667594840/FLAG3374c7ef7 [2018-11-10 07:45:37,298 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:45:37,299 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8_true-unreach-call.i [2018-11-10 07:45:37,306 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/data/fcbd67d93/e70cfa0c03ab4a169d4dece667594840/FLAG3374c7ef7 [2018-11-10 07:45:37,316 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/data/fcbd67d93/e70cfa0c03ab4a169d4dece667594840 [2018-11-10 07:45:37,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:45:37,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:45:37,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:45:37,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:45:37,322 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:45:37,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:45:37" (1/1) ... [2018-11-10 07:45:37,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2897fbe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:45:37, skipping insertion in model container [2018-11-10 07:45:37,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:45:37" (1/1) ... [2018-11-10 07:45:37,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:45:37,359 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:45:37,639 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: signbit 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.base.CHandler.visit(CHandler.java:662) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:663) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) 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.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.base.CHandler.visit(CHandler.java:1511) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-10 07:45:37,642 INFO L168 Benchmark]: Toolchain (without parser) took 323.68 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 938.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:45:37,643 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:45:37,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.16 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 938.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:45:37,648 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 322.16 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 938.7 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: signbit de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: signbit: 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 [2018-11-10 07:45:38,912 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:45:38,913 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:45:38,922 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:45:38,922 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:45:38,923 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:45:38,924 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:45:38,925 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:45:38,926 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:45:38,927 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:45:38,927 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:45:38,927 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:45:38,928 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:45:38,929 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:45:38,929 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:45:38,930 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:45:38,930 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:45:38,931 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:45:38,933 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:45:38,934 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:45:38,934 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:45:38,935 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:45:38,937 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:45:38,937 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:45:38,937 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:45:38,938 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:45:38,938 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:45:38,939 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:45:38,939 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:45:38,940 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:45:38,940 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:45:38,941 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:45:38,941 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:45:38,941 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:45:38,942 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:45:38,942 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:45:38,942 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 07:45:38,952 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:45:38,952 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:45:38,953 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:45:38,953 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 07:45:38,953 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 07:45:38,953 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 07:45:38,953 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 07:45:38,953 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 07:45:38,954 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:45:38,954 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:45:38,954 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:45:38,954 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:45:38,954 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:45:38,955 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:45:38,955 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:45:38,955 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 07:45:38,955 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 07:45:38,955 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:45:38,955 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:45:38,955 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:45:38,955 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:45:38,956 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:45:38,956 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:45:38,956 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:45:38,956 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:45:38,956 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:45:38,956 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:45:38,956 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:45:38,957 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 07:45:38,957 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:45:38,957 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 07:45:38,957 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 07:45:38,957 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_fc75275a-7ef8-4859-a37a-2a87b71dcda0/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 -> 89d4ebbdb94875553cd06d49914ce211c6614dad [2018-11-10 07:45:38,986 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:45:38,995 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:45:38,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:45:38,998 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:45:38,998 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:45:38,999 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp8_true-unreach-call.i [2018-11-10 07:45:39,041 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/data/86c765e85/c1e7148219f947379f93ad8e53c58d62/FLAG491d71135 [2018-11-10 07:45:39,385 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:45:39,385 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/sv-benchmarks/c/floats-cbmc-regression/float-no-simp8_true-unreach-call.i [2018-11-10 07:45:39,393 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/data/86c765e85/c1e7148219f947379f93ad8e53c58d62/FLAG491d71135 [2018-11-10 07:45:39,402 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/data/86c765e85/c1e7148219f947379f93ad8e53c58d62 [2018-11-10 07:45:39,404 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:45:39,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:45:39,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:45:39,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:45:39,408 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:45:39,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:45:39" (1/1) ... [2018-11-10 07:45:39,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c2cbe5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:45:39, skipping insertion in model container [2018-11-10 07:45:39,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:45:39" (1/1) ... [2018-11-10 07:45:39,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:45:39,451 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:45:39,816 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:45:39,819 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:45:39,845 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:45:40,011 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:45:40,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:45:40 WrapperNode [2018-11-10 07:45:40,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:45:40,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:45:40,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:45:40,012 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:45:40,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:45:40" (1/1) ... [2018-11-10 07:45:40,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:45:40" (1/1) ... [2018-11-10 07:45:40,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:45:40,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:45:40,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:45:40,043 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:45:40,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:45:40" (1/1) ... [2018-11-10 07:45:40,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:45:40" (1/1) ... [2018-11-10 07:45:40,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:45:40" (1/1) ... [2018-11-10 07:45:40,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:45:40" (1/1) ... [2018-11-10 07:45:40,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:45:40" (1/1) ... [2018-11-10 07:45:40,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:45:40" (1/1) ... [2018-11-10 07:45:40,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:45:40" (1/1) ... [2018-11-10 07:45:40,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:45:40,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:45:40,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:45:40,058 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:45:40,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:45:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:45:40,143 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:45:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:45:40,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:45:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:45:40,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:45:40,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:45:40,424 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:45:40,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:45:40 BoogieIcfgContainer [2018-11-10 07:45:40,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:45:40,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:45:40,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:45:40,427 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:45:40,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:45:39" (1/3) ... [2018-11-10 07:45:40,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffec546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:45:40, skipping insertion in model container [2018-11-10 07:45:40,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:45:40" (2/3) ... [2018-11-10 07:45:40,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ffec546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:45:40, skipping insertion in model container [2018-11-10 07:45:40,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:45:40" (3/3) ... [2018-11-10 07:45:40,429 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp8_true-unreach-call.i [2018-11-10 07:45:40,435 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:45:40,440 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:45:40,449 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:45:40,467 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:45:40,467 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:45:40,467 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:45:40,467 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:45:40,467 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:45:40,467 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:45:40,467 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:45:40,468 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:45:40,468 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:45:40,478 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-10 07:45:40,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 07:45:40,481 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:45:40,482 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:45:40,484 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:45:40,487 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:45:40,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1692222483, now seen corresponding path program 1 times [2018-11-10 07:45:40,489 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:45:40,490 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/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 [2018-11-10 07:45:40,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:45:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:45:40,545 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:45:40,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:45:40,605 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:45:40,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:45:40,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 07:45:40,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 07:45:40,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 07:45:40,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:45:40,625 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-11-10 07:45:40,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:45:40,655 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2018-11-10 07:45:40,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 07:45:40,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-10 07:45:40,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:45:40,661 INFO L225 Difference]: With dead ends: 31 [2018-11-10 07:45:40,662 INFO L226 Difference]: Without dead ends: 12 [2018-11-10 07:45:40,663 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:45:40,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-10 07:45:40,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-10 07:45:40,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-10 07:45:40,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2018-11-10 07:45:40,687 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 8 [2018-11-10 07:45:40,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:45:40,688 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2018-11-10 07:45:40,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 07:45:40,688 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-11-10 07:45:40,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 07:45:40,688 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:45:40,688 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:45:40,689 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:45:40,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:45:40,689 INFO L82 PathProgramCache]: Analyzing trace with hash 2110384609, now seen corresponding path program 1 times [2018-11-10 07:45:40,689 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:45:40,689 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/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 [2018-11-10 07:45:40,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:45:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:45:40,738 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:45:40,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:45:40,838 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:45:40,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:45:40,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 07:45:40,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 07:45:40,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 07:45:40,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 07:45:40,848 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 6 states. [2018-11-10 07:45:40,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:45:40,921 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-11-10 07:45:40,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 07:45:40,921 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-11-10 07:45:40,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:45:40,922 INFO L225 Difference]: With dead ends: 12 [2018-11-10 07:45:40,922 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 07:45:40,922 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-10 07:45:40,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 07:45:40,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 07:45:40,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 07:45:40,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 07:45:40,923 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-10 07:45:40,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:45:40,923 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 07:45:40,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 07:45:40,923 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 07:45:40,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 07:45:40,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 07:45:40,956 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 07:45:40,956 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:45:40,956 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 07:45:40,956 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 07:45:40,956 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 07:45:40,956 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 07:45:40,956 INFO L425 ceAbstractionStarter]: For program point L958(line 958) no Hoare annotation was computed. [2018-11-10 07:45:40,956 INFO L425 ceAbstractionStarter]: For program point L958-1(line 958) no Hoare annotation was computed. [2018-11-10 07:45:40,957 INFO L425 ceAbstractionStarter]: For program point L958-3(line 958) no Hoare annotation was computed. [2018-11-10 07:45:40,957 INFO L425 ceAbstractionStarter]: For program point L958-5(line 958) no Hoare annotation was computed. [2018-11-10 07:45:40,957 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 951 961) no Hoare annotation was computed. [2018-11-10 07:45:40,957 INFO L425 ceAbstractionStarter]: For program point L958-6(line 958) no Hoare annotation was computed. [2018-11-10 07:45:40,957 INFO L425 ceAbstractionStarter]: For program point L958-8(line 958) no Hoare annotation was computed. [2018-11-10 07:45:40,957 INFO L425 ceAbstractionStarter]: For program point L958-10(line 958) no Hoare annotation was computed. [2018-11-10 07:45:40,957 INFO L425 ceAbstractionStarter]: For program point L958-11(line 958) no Hoare annotation was computed. [2018-11-10 07:45:40,957 INFO L425 ceAbstractionStarter]: For program point L958-13(line 958) no Hoare annotation was computed. [2018-11-10 07:45:40,957 INFO L425 ceAbstractionStarter]: For program point L958-14(line 958) no Hoare annotation was computed. [2018-11-10 07:45:40,957 INFO L425 ceAbstractionStarter]: For program point L958-16(line 958) no Hoare annotation was computed. [2018-11-10 07:45:40,958 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 951 961) no Hoare annotation was computed. [2018-11-10 07:45:40,958 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 951 961) the Hoare annotation is: true [2018-11-10 07:45:40,958 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 958) no Hoare annotation was computed. [2018-11-10 07:45:40,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:45:40 BoogieIcfgContainer [2018-11-10 07:45:40,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:45:40,961 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:45:40,961 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:45:40,961 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:45:40,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:45:40" (3/4) ... [2018-11-10 07:45:40,965 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 07:45:40,971 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 07:45:40,972 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 07:45:40,975 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-10 07:45:40,975 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 07:45:40,975 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 07:45:41,007 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fc75275a-7ef8-4859-a37a-2a87b71dcda0/bin-2019/utaipan/witness.graphml [2018-11-10 07:45:41,008 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:45:41,008 INFO L168 Benchmark]: Toolchain (without parser) took 1603.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 944.4 MB in the beginning and 1.0 GB in the end (delta: -100.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-10 07:45:41,009 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:45:41,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.33 ms. Allocated memory is still 1.0 GB. Free memory was 944.4 MB in the beginning and 831.6 MB in the end (delta: 112.7 MB). Peak memory consumption was 112.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:45:41,010 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.48 ms. Allocated memory is still 1.0 GB. Free memory is still 831.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:45:41,010 INFO L168 Benchmark]: Boogie Preprocessor took 14.37 ms. Allocated memory is still 1.0 GB. Free memory was 831.6 MB in the beginning and 826.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:45:41,011 INFO L168 Benchmark]: RCFGBuilder took 367.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 826.3 MB in the beginning and 1.1 GB in the end (delta: -275.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. [2018-11-10 07:45:41,011 INFO L168 Benchmark]: TraceAbstraction took 535.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. [2018-11-10 07:45:41,011 INFO L168 Benchmark]: Witness Printer took 47.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:45:41,014 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 606.33 ms. Allocated memory is still 1.0 GB. Free memory was 944.4 MB in the beginning and 831.6 MB in the end (delta: 112.7 MB). Peak memory consumption was 112.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.48 ms. Allocated memory is still 1.0 GB. Free memory is still 831.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.37 ms. Allocated memory is still 1.0 GB. Free memory was 831.6 MB in the beginning and 826.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 367.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 826.3 MB in the beginning and 1.1 GB in the end (delta: -275.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 535.40 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. * Witness Printer took 47.05 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 958]: 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, 21 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 9 SDslu, 26 SDs, 0 SdLazy, 12 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 609 SizeOfPredicates, 10 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 14 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...