./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 606f7c2605a208e0a98efea41e23adfc30d8b8f4 ..................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 606f7c2605a208e0a98efea41e23adfc30d8b8f4 ............................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:33,320 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:33,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:33,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:33,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:33,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:33,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:33,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:33,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:33,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:33,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:33,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:33,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:33,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:33,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:33,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:33,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:33,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:33,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:33,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:33,347 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:33,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:33,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:33,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:33,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:33,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:33,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:33,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:33,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:33,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:33,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:33,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:33,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:33,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:33,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:33,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:33,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:33,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:33,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:33,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:33,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:33,359 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:01:33,370 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:33,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:33,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:33,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:33,372 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:33,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:33,372 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:33,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:33,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:33,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:33,373 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:01:33,373 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:33,373 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:01:33,373 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:33,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:33,374 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:33,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:01:33,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:33,374 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:33,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:33,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:33,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:33,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:33,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:33,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:01:33,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:33,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:01:33,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:01:33,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer 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 -> Automizer 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 -> 606f7c2605a208e0a98efea41e23adfc30d8b8f4 [2019-10-22 09:01:33,401 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:33,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:33,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:33,417 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:33,418 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:33,418 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2019-10-22 09:01:33,473 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/data/35703afc1/f9eea3616d4e440da505d09a50975ec8/FLAG385b98a63 [2019-10-22 09:01:33,955 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:33,959 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2019-10-22 09:01:33,969 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/data/35703afc1/f9eea3616d4e440da505d09a50975ec8/FLAG385b98a63 [2019-10-22 09:01:34,257 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/data/35703afc1/f9eea3616d4e440da505d09a50975ec8 [2019-10-22 09:01:34,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:34,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:34,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:34,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:34,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:34,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:34" (1/1) ... [2019-10-22 09:01:34,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc43f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:34, skipping insertion in model container [2019-10-22 09:01:34,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:34" (1/1) ... [2019-10-22 09:01:34,275 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:34,314 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:34,750 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: fesetround not supported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:959) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleBuiltinFesetround(StandardFunctionHandler.java:1292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:210) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1262) 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:1213) 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:906) 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:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1284) 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:3361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2176) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:540) 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:187) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:114) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:125) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 09:01:34,755 INFO L168 Benchmark]: Toolchain (without parser) took 494.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 939.1 MB in the beginning and 1.2 GB in the end (delta: -213.1 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:34,755 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:34,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 939.1 MB in the beginning and 1.2 GB in the end (delta: -213.1 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:34,758 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 491.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 939.1 MB in the beginning and 1.2 GB in the end (delta: -213.1 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: fesetround not supported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: fesetround not supported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:959) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:36,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:36,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:36,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:36,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:36,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:36,617 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:36,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:36,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:36,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:36,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:36,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:36,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:36,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:36,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:36,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:36,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:36,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:36,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:36,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:36,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:36,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:36,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:36,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:36,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:36,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:36,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:36,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:36,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:36,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:36,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:36,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:36,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:36,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:36,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:36,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:36,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:36,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:36,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:36,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:36,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:36,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 09:01:36,686 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:36,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:36,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:36,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:36,689 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:36,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:36,690 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:36,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:36,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:36,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:01:36,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:36,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:01:36,691 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 09:01:36,691 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 09:01:36,691 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:36,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:36,691 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:36,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:01:36,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:36,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:36,692 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:36,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:36,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:36,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:36,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:36,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:01:36,692 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 09:01:36,693 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 09:01:36,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:01:36,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 09:01:36,694 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer 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 -> Automizer 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 -> 606f7c2605a208e0a98efea41e23adfc30d8b8f4 [2019-10-22 09:01:36,727 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:36,741 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:36,745 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:36,748 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:36,748 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:36,749 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2019-10-22 09:01:36,801 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/data/644a298e8/9a6b284d3e024bc98f7bc1db6646cc50/FLAG6e4430ac6 [2019-10-22 09:01:37,254 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:37,254 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2019-10-22 09:01:37,267 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/data/644a298e8/9a6b284d3e024bc98f7bc1db6646cc50/FLAG6e4430ac6 [2019-10-22 09:01:37,555 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/data/644a298e8/9a6b284d3e024bc98f7bc1db6646cc50 [2019-10-22 09:01:37,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:37,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:37,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:37,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:37,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:37,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:37" (1/1) ... [2019-10-22 09:01:37,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61085902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:37, skipping insertion in model container [2019-10-22 09:01:37,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:37" (1/1) ... [2019-10-22 09:01:37,575 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:37,615 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:38,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:38,076 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:38,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:38,441 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:38,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38 WrapperNode [2019-10-22 09:01:38,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:38,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:38,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:38,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:38,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:38,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:38,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:38,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:38,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... [2019-10-22 09:01:38,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:38,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:38,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:38,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:38,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/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 [2019-10-22 09:01:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:38,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:38,835 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:38,836 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-22 09:01:38,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:38 BoogieIcfgContainer [2019-10-22 09:01:38,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:38,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:38,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:38,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:38,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:37" (1/3) ... [2019-10-22 09:01:38,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbc223f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:38, skipping insertion in model container [2019-10-22 09:01:38,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:38" (2/3) ... [2019-10-22 09:01:38,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dbc223f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:38, skipping insertion in model container [2019-10-22 09:01:38,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:38" (3/3) ... [2019-10-22 09:01:38,855 INFO L109 eAbstractionObserver]: Analyzing ICFG float-rounding1.i [2019-10-22 09:01:38,868 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:38,874 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-10-22 09:01:38,883 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-10-22 09:01:38,904 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:38,904 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:01:38,905 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:38,905 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:38,905 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:38,905 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:38,905 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:38,905 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:38,917 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-10-22 09:01:38,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 09:01:38,922 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:38,923 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 09:01:38,925 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:38,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:38,930 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 09:01:38,937 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:01:38,937 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049660640] [2019-10-22 09:01:38,938 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/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 [2019-10-22 09:01:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:39,006 WARN L254 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 09:01:39,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:39,043 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:01:39,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:39,058 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049660640] [2019-10-22 09:01:39,059 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:39,059 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 09:01:39,060 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568655861] [2019-10-22 09:01:39,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 09:01:39,064 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:01:39,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 09:01:39,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:39,079 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-10-22 09:01:39,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:39,150 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2019-10-22 09:01:39,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 09:01:39,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-10-22 09:01:39,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:39,159 INFO L225 Difference]: With dead ends: 34 [2019-10-22 09:01:39,159 INFO L226 Difference]: Without dead ends: 12 [2019-10-22 09:01:39,161 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 09:01:39,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-22 09:01:39,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-22 09:01:39,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-22 09:01:39,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-10-22 09:01:39,187 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 3 [2019-10-22 09:01:39,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:39,188 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-10-22 09:01:39,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 09:01:39,188 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-10-22 09:01:39,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 09:01:39,189 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:39,189 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-10-22 09:01:39,389 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 09:01:39,390 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:39,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:39,390 INFO L82 PathProgramCache]: Analyzing trace with hash 29801027, now seen corresponding path program 1 times [2019-10-22 09:01:39,390 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:01:39,391 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1531500127] [2019-10-22 09:01:39,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/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 [2019-10-22 09:01:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:39,480 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-10-22 09:01:39,480 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:01:39,682 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 09:01:39,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:01:39 BoogieIcfgContainer [2019-10-22 09:01:39,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:01:39,701 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:39,701 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:39,701 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:39,702 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:38" (3/4) ... [2019-10-22 09:01:39,704 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 09:01:39,731 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c5877fa9-a851-48aa-add9-9e065bcac6ba/bin/uautomizer/witness.graphml [2019-10-22 09:01:39,731 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:39,733 INFO L168 Benchmark]: Toolchain (without parser) took 2173.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 946.9 MB in the beginning and 984.0 MB in the end (delta: -37.0 MB). Peak memory consumption was 124.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:39,734 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:39,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 882.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 946.9 MB in the beginning and 1.0 GB in the end (delta: -92.7 MB). Peak memory consumption was 81.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:39,735 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:39,735 INFO L168 Benchmark]: Boogie Preprocessor took 27.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:39,736 INFO L168 Benchmark]: RCFGBuilder took 318.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:39,736 INFO L168 Benchmark]: TraceAbstraction took 862.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 984.0 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:39,737 INFO L168 Benchmark]: Witness Printer took 30.50 ms. Allocated memory is still 1.2 GB. Free memory is still 984.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:39,739 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 882.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 946.9 MB in the beginning and 1.0 GB in the end (delta: -92.7 MB). Peak memory consumption was 81.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 318.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 862.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 984.0 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 30.50 ms. Allocated memory is still 1.2 GB. Free memory is still 984.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1096]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1105] float f1 = 0x1.0p+0; [L1106] float f2 = 0x1.8p-24; [L1088] float roundToNearestSum = f1 + f2; [L1089] COND FALSE !(!(roundToNearestSum == 0x1.000002p+0f)) [L1095] float roundDownSum = f1 + f2; [L1096] COND TRUE !(roundDownSum == 0x1.0p+0f) [L1096] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 4 error locations. Result: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 13 SDslu, 0 SDs, 0 SdLazy, 2 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 7 NumberOfNonLiveVariables, 11 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...