./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float14.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float14.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 65613eca1e7ee253e99a403c1f03397e1fd1d783 ............................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float14.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 65613eca1e7ee253e99a403c1f03397e1fd1d783 .......................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:38:34,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:38:34,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:38:34,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:38:34,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:38:34,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:38:34,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:38:34,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:38:34,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:38:34,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:38:34,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:38:34,827 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:38:34,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:38:34,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:38:34,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:38:34,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:38:34,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:38:34,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:38:34,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:38:34,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:38:34,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:38:34,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:38:34,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:38:34,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:38:34,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:38:34,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:38:34,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:38:34,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:38:34,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:38:34,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:38:34,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:38:34,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:38:34,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:38:34,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:38:34,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:38:34,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:38:34,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:38:34,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:38:34,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:38:34,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:38:34,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:38:34,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:38:34,936 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:38:34,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:38:34,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:38:34,941 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:38:34,941 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:38:34,942 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:38:34,942 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:38:34,942 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:38:34,942 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:38:34,943 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:38:34,944 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:38:34,944 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:38:34,944 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:38:34,951 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:38:34,951 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:38:34,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:38:34,953 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:38:34,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:38:34,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:38:34,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:38:34,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:38:34,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:38:34,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:38:34,954 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:38:34,954 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:38:34,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:38:34,955 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:38:34,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:38:34,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:38:34,957 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:38:34,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:38:34,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:38:34,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:38:34,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:38:34,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:38:34,959 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:38:34,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:38:34,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:38:34,960 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:38:34,960 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:38:34,960 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65613eca1e7ee253e99a403c1f03397e1fd1d783 [2020-11-28 07:38:35,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:38:35,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:38:35,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:38:35,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:38:35,310 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:38:35,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float14.i [2020-11-28 07:38:35,392 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/data/450555287/1bbe69e39eb644739f772f8a05ad2f69/FLAG58adad865 [2020-11-28 07:38:36,001 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:38:36,002 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/sv-benchmarks/c/floats-cbmc-regression/float14.i [2020-11-28 07:38:36,016 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/data/450555287/1bbe69e39eb644739f772f8a05ad2f69/FLAG58adad865 [2020-11-28 07:38:36,210 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/data/450555287/1bbe69e39eb644739f772f8a05ad2f69 [2020-11-28 07:38:36,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:38:36,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:38:36,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:36,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:38:36,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:38:36,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:36" (1/1) ... [2020-11-28 07:38:36,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@716037c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:36, skipping insertion in model container [2020-11-28 07:38:36,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:36" (1/1) ... [2020-11-28 07:38:36,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:38:36,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:38:36,907 FATAL L? ?]: 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: isinf at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1690) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) 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:1080) 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:2342) 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:2342) 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:2342) 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:1569) 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:1045) 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:1423) 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:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) 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:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-28 07:38:36,917 INFO L168 Benchmark]: Toolchain (without parser) took 700.32 ms. Allocated memory is still 98.6 MB. Free memory was 77.3 MB in the beginning and 65.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:36,919 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 77.6 MB. Free memory was 52.9 MB in the beginning and 52.9 MB in the end (delta: 53.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:36,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.68 ms. Allocated memory is still 98.6 MB. Free memory was 77.1 MB in the beginning and 65.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:36,923 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 77.6 MB. Free memory was 52.9 MB in the beginning and 52.9 MB in the end (delta: 53.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 695.68 ms. Allocated memory is still 98.6 MB. Free memory was 77.1 MB in the beginning and 65.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isinf de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isinf: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:38:39,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:38:39,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:38:39,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:38:39,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:38:39,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:38:39,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:38:39,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:38:39,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:38:39,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:38:39,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:38:39,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:38:39,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:38:39,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:38:39,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:38:39,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:38:39,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:38:39,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:38:39,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:38:39,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:38:39,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:38:39,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:38:39,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:38:39,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:38:39,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:38:39,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:38:39,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:38:39,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:38:39,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:38:39,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:38:39,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:38:39,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:38:39,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:38:39,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:38:39,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:38:39,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:38:39,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:38:39,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:38:39,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:38:39,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:38:39,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:38:39,306 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:38:39,347 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:38:39,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:38:39,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:38:39,350 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:38:39,350 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:38:39,350 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:38:39,350 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:38:39,351 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:38:39,351 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:38:39,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:38:39,352 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:38:39,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:38:39,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:38:39,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:38:39,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:38:39,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:38:39,353 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:38:39,353 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:38:39,353 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:38:39,353 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:38:39,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:38:39,354 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:38:39,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:38:39,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:38:39,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:38:39,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:38:39,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:38:39,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:38:39,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:38:39,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:38:39,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:38:39,355 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:38:39,356 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:38:39,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:38:39,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:38:39,356 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:38:39,356 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65613eca1e7ee253e99a403c1f03397e1fd1d783 [2020-11-28 07:38:39,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:38:39,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:38:39,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:38:39,812 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:38:39,813 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:38:39,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float14.i [2020-11-28 07:38:39,878 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/data/71e73ff8d/a573cfce9edf45bbaaaac835fa73c039/FLAG619849fb5 [2020-11-28 07:38:40,450 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:38:40,450 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/sv-benchmarks/c/floats-cbmc-regression/float14.i [2020-11-28 07:38:40,463 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/data/71e73ff8d/a573cfce9edf45bbaaaac835fa73c039/FLAG619849fb5 [2020-11-28 07:38:40,708 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/data/71e73ff8d/a573cfce9edf45bbaaaac835fa73c039 [2020-11-28 07:38:40,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:38:40,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:38:40,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:40,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:38:40,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:38:40,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:40" (1/1) ... [2020-11-28 07:38:40,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@386cd384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:40, skipping insertion in model container [2020-11-28 07:38:40,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:40" (1/1) ... [2020-11-28 07:38:40,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:38:40,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:38:41,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:41,476 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:38:41,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:41,955 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:38:41,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:41 WrapperNode [2020-11-28 07:38:41,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:41,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:41,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:38:41,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:38:41,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:41" (1/1) ... [2020-11-28 07:38:42,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:41" (1/1) ... [2020-11-28 07:38:42,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:42,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:38:42,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:38:42,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:38:42,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:41" (1/1) ... [2020-11-28 07:38:42,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:41" (1/1) ... [2020-11-28 07:38:42,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:41" (1/1) ... [2020-11-28 07:38:42,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:41" (1/1) ... [2020-11-28 07:38:42,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:41" (1/1) ... [2020-11-28 07:38:42,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:41" (1/1) ... [2020-11-28 07:38:42,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:41" (1/1) ... [2020-11-28 07:38:42,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:38:42,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:38:42,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:38:42,088 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:38:42,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/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 [2020-11-28 07:38:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:38:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:38:42,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:38:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:38:42,643 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:38:42,644 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 07:38:42,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:42 BoogieIcfgContainer [2020-11-28 07:38:42,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:38:42,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:38:42,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:38:42,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:38:42,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:38:40" (1/3) ... [2020-11-28 07:38:42,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b252980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:42, skipping insertion in model container [2020-11-28 07:38:42,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:41" (2/3) ... [2020-11-28 07:38:42,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b252980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:42, skipping insertion in model container [2020-11-28 07:38:42,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:42" (3/3) ... [2020-11-28 07:38:42,654 INFO L111 eAbstractionObserver]: Analyzing ICFG float14.i [2020-11-28 07:38:42,668 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:38:42,673 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 07:38:42,684 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 07:38:42,718 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:38:42,718 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:38:42,718 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:38:42,718 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:38:42,718 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:38:42,719 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:38:42,719 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:38:42,719 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:38:42,732 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-28 07:38:42,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 07:38:42,737 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:42,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 07:38:42,739 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:42,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:42,745 INFO L82 PathProgramCache]: Analyzing trace with hash 28693859, now seen corresponding path program 1 times [2020-11-28 07:38:42,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:38:42,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147649858] [2020-11-28 07:38:42,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/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 [2020-11-28 07:38:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:42,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 07:38:42,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:38:42,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:42,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:38:43,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:43,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147649858] [2020-11-28 07:38:43,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:38:43,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-28 07:38:43,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603621277] [2020-11-28 07:38:43,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:38:43,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:38:43,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:38:43,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:38:43,155 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 6 states. [2020-11-28 07:38:43,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:43,256 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-11-28 07:38:43,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:38:43,259 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-11-28 07:38:43,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:43,266 INFO L225 Difference]: With dead ends: 21 [2020-11-28 07:38:43,266 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:38:43,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:38:43,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:38:43,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:38:43,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:38:43,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:38:43,292 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-11-28 07:38:43,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:43,293 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:38:43,293 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:38:43,293 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:38:43,293 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:38:43,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:38:43,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:38:43,518 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:38:43,518 INFO L274 CegarLoopResult]: For program point L960(line 960) no Hoare annotation was computed. [2020-11-28 07:38:43,518 INFO L274 CegarLoopResult]: For program point L960-2(line 960) no Hoare annotation was computed. [2020-11-28 07:38:43,518 INFO L274 CegarLoopResult]: For program point L960-3(line 960) no Hoare annotation was computed. [2020-11-28 07:38:43,519 INFO L274 CegarLoopResult]: For program point L960-4(line 960) no Hoare annotation was computed. [2020-11-28 07:38:43,519 INFO L274 CegarLoopResult]: For program point L960-6(line 960) no Hoare annotation was computed. [2020-11-28 07:38:43,519 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 960) no Hoare annotation was computed. [2020-11-28 07:38:43,519 INFO L274 CegarLoopResult]: For program point L960-7(line 960) no Hoare annotation was computed. [2020-11-28 07:38:43,519 INFO L274 CegarLoopResult]: For program point L973(line 973) no Hoare annotation was computed. [2020-11-28 07:38:43,519 INFO L274 CegarLoopResult]: For program point L961(lines 961 974) no Hoare annotation was computed. [2020-11-28 07:38:43,519 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 07:38:43,519 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:38:43,519 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 07:38:43,520 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 960) no Hoare annotation was computed. [2020-11-28 07:38:43,520 INFO L274 CegarLoopResult]: For program point L966(line 966) no Hoare annotation was computed. [2020-11-28 07:38:43,520 INFO L274 CegarLoopResult]: For program point L966-2(line 966) no Hoare annotation was computed. [2020-11-28 07:38:43,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:38:43 BoogieIcfgContainer [2020-11-28 07:38:43,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:38:43,524 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:38:43,524 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:38:43,525 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:38:43,525 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:42" (3/4) ... [2020-11-28 07:38:43,536 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:38:43,547 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 07:38:43,547 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 07:38:43,547 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:38:43,547 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:38:43,579 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6e872d41-acf2-462a-bedf-e2c80135b079/bin/utaipan/witness.graphml [2020-11-28 07:38:43,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:38:43,582 INFO L168 Benchmark]: Toolchain (without parser) took 2867.64 ms. Allocated memory was 56.6 MB in the beginning and 90.2 MB in the end (delta: 33.6 MB). Free memory was 35.4 MB in the beginning and 56.5 MB in the end (delta: -21.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:43,585 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 56.6 MB. Free memory was 38.4 MB in the beginning and 38.4 MB in the end (delta: 33.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:43,586 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1241.80 ms. Allocated memory was 56.6 MB in the beginning and 90.2 MB in the end (delta: 33.6 MB). Free memory was 35.2 MB in the beginning and 70.4 MB in the end (delta: -35.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:43,586 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.83 ms. Allocated memory is still 90.2 MB. Free memory was 70.4 MB in the beginning and 67.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:43,587 INFO L168 Benchmark]: Boogie Preprocessor took 47.54 ms. Allocated memory is still 90.2 MB. Free memory was 67.8 MB in the beginning and 66.8 MB in the end (delta: 992.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:43,587 INFO L168 Benchmark]: RCFGBuilder took 558.79 ms. Allocated memory is still 90.2 MB. Free memory was 66.8 MB in the beginning and 55.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:43,588 INFO L168 Benchmark]: TraceAbstraction took 875.80 ms. Allocated memory is still 90.2 MB. Free memory was 54.8 MB in the beginning and 59.0 MB in the end (delta: -4.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:43,588 INFO L168 Benchmark]: Witness Printer took 55.27 ms. Allocated memory is still 90.2 MB. Free memory was 58.5 MB in the beginning and 56.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:43,591 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 56.6 MB. Free memory was 38.4 MB in the beginning and 38.4 MB in the end (delta: 33.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1241.80 ms. Allocated memory was 56.6 MB in the beginning and 90.2 MB in the end (delta: 33.6 MB). Free memory was 35.2 MB in the beginning and 70.4 MB in the end (delta: -35.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.83 ms. Allocated memory is still 90.2 MB. Free memory was 70.4 MB in the beginning and 67.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.54 ms. Allocated memory is still 90.2 MB. Free memory was 67.8 MB in the beginning and 66.8 MB in the end (delta: 992.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 558.79 ms. Allocated memory is still 90.2 MB. Free memory was 66.8 MB in the beginning and 55.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 875.80 ms. Allocated memory is still 90.2 MB. Free memory was 54.8 MB in the beginning and 59.0 MB in the end (delta: -4.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 55.27 ms. Allocated memory is still 90.2 MB. Free memory was 58.5 MB in the beginning and 56.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 960]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 960]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 17 SDslu, 2 SDs, 0 SdLazy, 4 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 112 SizeOfPredicates, 2 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 3 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...