./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0870a.c --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_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0870a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/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 5e896ed22540a29e5537c02d854edcb8ff819625 ............................................................................................................................................................................... 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_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0870a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/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 5e896ed22540a29e5537c02d854edcb8ff819625 ............................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-28 07:40:40,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:40:40,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:40:40,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:40:40,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:40:40,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:40:40,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:40:40,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:40:40,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:40:40,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:40:40,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:40:40,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:40:40,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:40:40,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:40:40,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:40:40,308 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:40:40,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:40:40,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:40:40,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:40:40,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:40:40,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:40:40,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:40:40,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:40:40,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:40:40,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:40:40,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:40:40,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:40:40,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:40:40,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:40:40,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:40:40,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:40:40,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:40:40,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:40:40,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:40:40,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:40:40,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:40:40,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:40:40,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:40:40,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:40:40,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:40:40,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:40:40,358 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:40:40,386 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:40:40,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:40:40,387 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:40:40,387 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:40:40,387 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:40:40,387 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:40:40,388 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:40:40,388 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:40:40,388 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:40:40,388 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:40:40,388 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:40:40,389 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:40:40,389 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:40:40,389 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:40:40,389 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:40:40,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:40:40,390 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:40:40,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:40:40,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:40:40,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:40:40,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:40:40,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:40:40,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:40:40,392 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:40:40,392 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:40:40,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:40:40,392 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:40:40,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:40:40,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:40:40,393 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:40:40,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:40:40,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:40:40,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:40:40,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:40:40,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:40:40,394 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:40:40,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:40:40,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:40:40,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:40:40,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:40:40,395 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_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e896ed22540a29e5537c02d854edcb8ff819625 [2020-11-28 07:40:40,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:40:40,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:40:40,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:40:40,693 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:40:40,694 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:40:40,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0870a.c [2020-11-28 07:40:40,756 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/data/312280640/ab00c1d3152e4eb6b3b436d7775c4afd/FLAGacf1a7e9f [2020-11-28 07:40:41,296 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:40:41,296 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/sv-benchmarks/c/float-newlib/float_req_bl_0870a.c [2020-11-28 07:40:41,307 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/data/312280640/ab00c1d3152e4eb6b3b436d7775c4afd/FLAGacf1a7e9f [2020-11-28 07:40:41,774 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/data/312280640/ab00c1d3152e4eb6b3b436d7775c4afd [2020-11-28 07:40:41,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:40:41,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:40:41,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:40:41,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:40:41,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:40:41,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:40:41" (1/1) ... [2020-11-28 07:40:41,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207a5f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:41, skipping insertion in model container [2020-11-28 07:40:41,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:40:41" (1/1) ... [2020-11-28 07:40:41,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:40:41,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:40:42,117 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1682) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$42(StandardFunctionHandler.java:332) 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.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1971) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1600) 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.visit(CHandler.java:1577) 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 07:40:42,122 INFO L168 Benchmark]: Toolchain (without parser) took 341.56 ms. Allocated memory is still 115.3 MB. Free memory was 88.7 MB in the beginning and 90.1 MB in the end (delta: -1.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:42,122 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 115.3 MB. Free memory is still 76.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:40:42,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.00 ms. Allocated memory is still 115.3 MB. Free memory was 88.4 MB in the beginning and 90.1 MB in the end (delta: -1.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:40:42,125 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 115.3 MB. Free memory is still 76.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 333.00 ms. Allocated memory is still 115.3 MB. Free memory was 88.4 MB in the beginning and 90.1 MB in the end (delta: -1.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:835) 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 07:40:44,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:40:44,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:40:44,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:40:44,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:40:44,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:40:44,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:40:44,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:40:44,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:40:44,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:40:44,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:40:44,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:40:44,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:40:44,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:40:44,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:40:44,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:40:44,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:40:44,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:40:44,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:40:44,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:40:44,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:40:44,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:40:44,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:40:44,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:40:44,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:40:44,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:40:44,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:40:44,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:40:44,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:40:44,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:40:44,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:40:44,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:40:44,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:40:44,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:40:44,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:40:44,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:40:44,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:40:44,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:40:44,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:40:44,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:40:44,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:40:44,611 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:40:44,651 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:40:44,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:40:44,654 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:40:44,655 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:40:44,655 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:40:44,655 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:40:44,656 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:40:44,656 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:40:44,656 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:40:44,658 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:40:44,659 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:40:44,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:40:44,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:40:44,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:40:44,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:40:44,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:40:44,661 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:40:44,661 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:40:44,661 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:40:44,661 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:40:44,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:40:44,662 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:40:44,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:40:44,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:40:44,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:40:44,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:40:44,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:40:44,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:40:44,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:40:44,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:40:44,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:40:44,664 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:40:44,665 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:40:44,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:40:44,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:40:44,666 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:40:44,666 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_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e896ed22540a29e5537c02d854edcb8ff819625 [2020-11-28 07:40:45,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:40:45,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:40:45,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:40:45,127 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:40:45,129 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:40:45,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0870a.c [2020-11-28 07:40:45,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/data/b105cb985/9f1167efbbf24fbbb186642c3f2ea122/FLAGf06192315 [2020-11-28 07:40:45,850 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:40:45,851 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/sv-benchmarks/c/float-newlib/float_req_bl_0870a.c [2020-11-28 07:40:45,861 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/data/b105cb985/9f1167efbbf24fbbb186642c3f2ea122/FLAGf06192315 [2020-11-28 07:40:46,132 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/data/b105cb985/9f1167efbbf24fbbb186642c3f2ea122 [2020-11-28 07:40:46,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:40:46,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:40:46,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:40:46,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:40:46,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:40:46,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:40:46" (1/1) ... [2020-11-28 07:40:46,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104ecea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:46, skipping insertion in model container [2020-11-28 07:40:46,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:40:46" (1/1) ... [2020-11-28 07:40:46,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:40:46,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:40:46,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:40:46,566 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:40:46,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:40:46,740 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:40:46,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:46 WrapperNode [2020-11-28 07:40:46,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:40:46,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:40:46,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:40:46,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:40:46,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:46" (1/1) ... [2020-11-28 07:40:46,791 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:46" (1/1) ... [2020-11-28 07:40:46,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:40:46,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:40:46,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:40:46,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:40:46,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:46" (1/1) ... [2020-11-28 07:40:46,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:46" (1/1) ... [2020-11-28 07:40:46,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:46" (1/1) ... [2020-11-28 07:40:46,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:46" (1/1) ... [2020-11-28 07:40:46,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:46" (1/1) ... [2020-11-28 07:40:46,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:46" (1/1) ... [2020-11-28 07:40:47,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:46" (1/1) ... [2020-11-28 07:40:47,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:40:47,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:40:47,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:40:47,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:40:47,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/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 07:40:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-28 07:40:47,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:40:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:40:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-28 07:40:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 07:40:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:40:47,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:40:47,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-28 07:40:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 07:40:47,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:41:07,878 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:41:07,878 INFO L298 CfgBuilder]: Removed 104 assume(true) statements. [2020-11-28 07:41:07,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:07 BoogieIcfgContainer [2020-11-28 07:41:07,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:41:07,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:41:07,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:41:07,885 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:41:07,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:40:46" (1/3) ... [2020-11-28 07:41:07,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e7fcba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:07, skipping insertion in model container [2020-11-28 07:41:07,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:40:46" (2/3) ... [2020-11-28 07:41:07,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e7fcba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:07, skipping insertion in model container [2020-11-28 07:41:07,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:07" (3/3) ... [2020-11-28 07:41:07,889 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0870a.c [2020-11-28 07:41:07,899 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:41:07,904 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:41:07,916 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:41:07,941 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:41:07,941 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:41:07,941 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:41:07,941 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:41:07,942 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:41:07,942 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:41:07,942 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:41:07,942 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:41:07,972 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states. [2020-11-28 07:41:07,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 07:41:07,985 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:07,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:07,986 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:41:07,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:07,990 INFO L82 PathProgramCache]: Analyzing trace with hash 483165043, now seen corresponding path program 1 times [2020-11-28 07:41:08,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:41:08,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35681141] [2020-11-28 07:41:08,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/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 07:41:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:09,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:41:09,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:41:09,437 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 07:41:09,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:41:09,443 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 07:41:09,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35681141] [2020-11-28 07:41:09,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:09,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:41:09,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932068087] [2020-11-28 07:41:09,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:41:09,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:41:09,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:41:09,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:41:09,470 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 2 states. [2020-11-28 07:41:09,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:09,513 INFO L93 Difference]: Finished difference Result 398 states and 685 transitions. [2020-11-28 07:41:09,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:41:09,514 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-28 07:41:09,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:09,526 INFO L225 Difference]: With dead ends: 398 [2020-11-28 07:41:09,527 INFO L226 Difference]: Without dead ends: 196 [2020-11-28 07:41:09,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:41:09,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-11-28 07:41:09,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2020-11-28 07:41:09,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-11-28 07:41:09,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 256 transitions. [2020-11-28 07:41:09,581 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 256 transitions. Word has length 11 [2020-11-28 07:41:09,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:09,582 INFO L481 AbstractCegarLoop]: Abstraction has 196 states and 256 transitions. [2020-11-28 07:41:09,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:41:09,582 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 256 transitions. [2020-11-28 07:41:09,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 07:41:09,583 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:09,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:09,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:41:09,808 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:41:09,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:09,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1070268880, now seen corresponding path program 1 times [2020-11-28 07:41:09,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:41:09,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762792251] [2020-11-28 07:41:09,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-28 07:41:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:10,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 07:41:10,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:41:11,134 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 07:41:11,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:41:11,368 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 07:41:11,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [762792251] [2020-11-28 07:41:11,369 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:11,369 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-28 07:41:11,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364912645] [2020-11-28 07:41:11,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 07:41:11,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:41:11,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 07:41:11,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-28 07:41:11,372 INFO L87 Difference]: Start difference. First operand 196 states and 256 transitions. Second operand 10 states. [2020-11-28 07:41:11,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:11,733 INFO L93 Difference]: Finished difference Result 201 states and 260 transitions. [2020-11-28 07:41:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:41:11,735 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2020-11-28 07:41:11,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:11,736 INFO L225 Difference]: With dead ends: 201 [2020-11-28 07:41:11,736 INFO L226 Difference]: Without dead ends: 16 [2020-11-28 07:41:11,738 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-28 07:41:11,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-28 07:41:11,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-28 07:41:11,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 07:41:11,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-28 07:41:11,749 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2020-11-28 07:41:11,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:11,750 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-28 07:41:11,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 07:41:11,750 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-28 07:41:11,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 07:41:11,751 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:11,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:11,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:41:11,952 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:41:11,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:11,953 INFO L82 PathProgramCache]: Analyzing trace with hash 753134645, now seen corresponding path program 1 times [2020-11-28 07:41:11,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:41:11,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [811707251] [2020-11-28 07:41:11,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-28 07:41:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:41:13,682 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:41:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:41:15,191 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:41:15,494 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-28 07:41:15,494 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:41:15,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:41:15,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:41:15 BoogieIcfgContainer [2020-11-28 07:41:15,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:41:15,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:41:15,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:41:15,844 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:41:15,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:07" (3/4) ... [2020-11-28 07:41:15,846 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:41:15,987 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_eb46999c-f70f-4de0-89f6-1dc0e3cc64ec/bin/utaipan/witness.graphml [2020-11-28 07:41:15,990 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:41:15,992 INFO L168 Benchmark]: Toolchain (without parser) took 29855.31 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 43.5 MB in the beginning and 28.5 MB in the end (delta: 15.1 MB). Peak memory consumption was 35.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:15,993 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 62.9 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:15,994 INFO L168 Benchmark]: CACSL2BoogieTranslator took 603.40 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 43.4 MB in the beginning and 58.4 MB in the end (delta: -15.0 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:15,995 INFO L168 Benchmark]: Boogie Procedure Inliner took 131.46 ms. Allocated memory is still 83.9 MB. Free memory was 58.4 MB in the beginning and 53.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:15,995 INFO L168 Benchmark]: Boogie Preprocessor took 157.81 ms. Allocated memory is still 83.9 MB. Free memory was 53.2 MB in the beginning and 47.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:15,995 INFO L168 Benchmark]: RCFGBuilder took 20847.22 ms. Allocated memory is still 83.9 MB. Free memory was 47.9 MB in the beginning and 57.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:15,998 INFO L168 Benchmark]: TraceAbstraction took 7956.64 ms. Allocated memory is still 83.9 MB. Free memory was 57.2 MB in the beginning and 36.0 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:15,998 INFO L168 Benchmark]: Witness Printer took 146.97 ms. Allocated memory is still 83.9 MB. Free memory was 36.0 MB in the beginning and 28.5 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:16,000 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 62.9 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 603.40 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 43.4 MB in the beginning and 58.4 MB in the end (delta: -15.0 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 131.46 ms. Allocated memory is still 83.9 MB. Free memory was 58.4 MB in the beginning and 53.2 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 157.81 ms. Allocated memory is still 83.9 MB. Free memory was 53.2 MB in the beginning and 47.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 20847.22 ms. Allocated memory is still 83.9 MB. Free memory was 47.9 MB in the beginning and 57.7 MB in the end (delta: -9.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7956.64 ms. Allocated memory is still 83.9 MB. Free memory was 57.2 MB in the beginning and 36.0 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 146.97 ms. Allocated memory is still 83.9 MB. Free memory was 36.0 MB in the beginning and 28.5 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L109] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L197-L199] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L267-L295] static const float bp_pow[] = { 1.0, 1.5, }, dp_h_pow[] = { 0.0, 5.84960938e-01, }, dp_l_pow[] = { 0.0, 1.56322085e-06, }, zero_pow = 0.0, one_pow = 1.0, two_pow = 2.0, two24_pow = 16777216.0, huge_pow = 1.0e30, tiny_pow = 1.0e-30, L1_pow = 6.0000002384e-01, L2_pow = 4.2857143283e-01, L3_pow = 3.3333334327e-01, L4_pow = 2.7272811532e-01, L5_pow = 2.3066075146e-01, L6_pow = 2.0697501302e-01, P1_pow = 1.6666667163e-01, P2_pow = -2.7777778450e-03, P3_pow = 6.6137559770e-05, P4_pow = -1.6533901999e-06, P5_pow = 4.1381369442e-08, lg2_pow = 6.9314718246e-01, lg2_h_pow = 6.93145752e-01, lg2_l_pow = 1.42860654e-06, ovt_pow = 4.2995665694e-08, cp = 9.6179670095e-01, cp_h_pow = 9.6179199219e-01, cp_l_pow = 4.7017383622e-06, ivln2_pow = 1.4426950216e+00, ivln2_h_pow = 1.4426879883e+00, ivln2_l_pow = 7.0526075433e-06; VAL [bp_pow={7:0}, cp=0.9617919921875, cp=0.000004701738362200558, cp=0.9617967009544373, dp_h_pow={2:0}, dp_l_pow={-1073741822:0}, huge_pow=1000000015047466200000000000000, huge_scalbn=1000000015047466200000000000000, ivln2_h_pow=1.44268798828125, ivln2_l_pow=0.000007052607543300837, ivln2_pow=1.4426950216293335, L1_pow=0.6000000238418579, L2_pow=0.4285714328289032, L3_pow=0.3333333432674408, L4_pow=0.2727281153202057, L5_pow=0.23066075146198273, L6_pow=0.20697501301765442, lg2_h_pow=0.693145751953125, lg2_l_pow=0.0000014286065379565116, lg2_pow=0.6931471824645996, one_fmod=1.0, one_pow=1.0, one_sqrt=1.0, ovt_pow=0.00000004299566569443414, P1_pow=0.1666666716337204, P2_pow=-0.0027777778450399637, P3_pow=0.0000661375597701408, P4_pow=-0.0000016533901998627698, P5_pow=0.00000004138136944220605, tiny_pow=0.0000000000000000000000000000010000000031710769, tiny_scalbn=0.0000000000000000000000000000010000000031710769, tiny_sqrt=0.0000000000000000000000000000010000000031710769, two24_pow=16777216, two25_scalbn=33554432, two_pow=2.0, twom25_scalbn=0.000000029802322387695312, Zero_fmod={-2147483646:0}, zero_pow=0.0] [L600] float x = __VERIFIER_nondet_float(); [L601] float y = 0.0f / 0.0f; VAL [bp_pow={7:0}, cp=0.9617967009544373, cp=0.9617919921875, cp=0.000004701738362200558, dp_h_pow={2:0}, dp_l_pow={-1073741822:0}, huge_pow=1000000015047466200000000000000, huge_scalbn=1000000015047466200000000000000, ivln2_h_pow=1.44268798828125, ivln2_l_pow=0.000007052607543300837, ivln2_pow=1.4426950216293335, L1_pow=0.6000000238418579, L2_pow=0.4285714328289032, L3_pow=0.3333333432674408, L4_pow=0.2727281153202057, L5_pow=0.23066075146198273, L6_pow=0.20697501301765442, lg2_h_pow=0.693145751953125, lg2_l_pow=0.0000014286065379565116, lg2_pow=0.6931471824645996, one_fmod=1.0, one_pow=1.0, one_sqrt=1.0, ovt_pow=0.00000004299566569443414, P1_pow=0.1666666716337204, P2_pow=-0.0027777778450399637, P3_pow=0.0000661375597701408, P4_pow=-0.0000016533901998627698, P5_pow=0.00000004138136944220605, tiny_pow=0.0000000000000000000000000000010000000031710769, tiny_scalbn=0.0000000000000000000000000000010000000031710769, tiny_sqrt=0.0000000000000000000000000000010000000031710769, two24_pow=16777216, two25_scalbn=33554432, two_pow=2.0, twom25_scalbn=0.000000029802322387695312, Zero_fmod={-2147483646:0}, zero_pow=0.0] [L603] COND TRUE x != 1.0f [L298] float z, ax, z_h, z_l, p_h, p_l; [L299] float y1, t1, t2, r, s, t, u, v, w; [L300] __int32_t i, j, k, yisint, n; [L301] __int32_t hx, hy, ix, iy, is; VAL [bp_pow={7:0}, cp=0.000004701738362200558, cp=0.9617967009544373, cp=0.9617919921875, dp_h_pow={2:0}, dp_l_pow={-1073741822:0}, huge_pow=1000000015047466200000000000000, huge_scalbn=1000000015047466200000000000000, ivln2_h_pow=1.44268798828125, ivln2_l_pow=0.000007052607543300837, ivln2_pow=1.4426950216293335, L1_pow=0.6000000238418579, L2_pow=0.4285714328289032, L3_pow=0.3333333432674408, L4_pow=0.2727281153202057, L5_pow=0.23066075146198273, L6_pow=0.20697501301765442, lg2_h_pow=0.693145751953125, lg2_l_pow=0.0000014286065379565116, lg2_pow=0.6931471824645996, one_fmod=1.0, one_pow=1.0, one_sqrt=1.0, ovt_pow=0.00000004299566569443414, P1_pow=0.1666666716337204, P2_pow=-0.0027777778450399637, P3_pow=0.0000661375597701408, P4_pow=-0.0000016533901998627698, P5_pow=0.00000004138136944220605, tiny_pow=0.0000000000000000000000000000010000000031710769, tiny_scalbn=0.0000000000000000000000000000010000000031710769, tiny_sqrt=0.0000000000000000000000000000010000000031710769, two24_pow=16777216, two25_scalbn=33554432, two_pow=2.0, twom25_scalbn=0.000000029802322387695312, Zero_fmod={-2147483646:0}, zero_pow=0.0] [L304] ieee_float_shape_type gf_u; [L305] gf_u.value = (x) [L306] EXPR gf_u.word [L306] (hx) = gf_u.word [L309] ieee_float_shape_type gf_u; [L310] gf_u.value = (y) [L311] EXPR gf_u.word [L311] (hy) = gf_u.word [L313] ix = hx & 0x7fffffff [L314] iy = hy & 0x7fffffff VAL [bp_pow={7:0}, cp=0.000004701738362200558, cp=0.9617919921875, cp=0.9617967009544373, dp_h_pow={2:0}, dp_l_pow={-1073741822:0}, huge_pow=1000000015047466200000000000000, huge_scalbn=1000000015047466200000000000000, ivln2_h_pow=1.44268798828125, ivln2_l_pow=0.000007052607543300837, ivln2_pow=1.4426950216293335, L1_pow=0.6000000238418579, L2_pow=0.4285714328289032, L3_pow=0.3333333432674408, L4_pow=0.2727281153202057, L5_pow=0.23066075146198273, L6_pow=0.20697501301765442, lg2_h_pow=0.693145751953125, lg2_l_pow=0.0000014286065379565116, lg2_pow=0.6931471824645996, one_fmod=1.0, one_pow=1.0, one_sqrt=1.0, ovt_pow=0.00000004299566569443414, P1_pow=0.1666666716337204, P2_pow=-0.0027777778450399637, P3_pow=0.0000661375597701408, P4_pow=-0.0000016533901998627698, P5_pow=0.00000004138136944220605, tiny_pow=0.0000000000000000000000000000010000000031710769, tiny_scalbn=0.0000000000000000000000000000010000000031710769, tiny_sqrt=0.0000000000000000000000000000010000000031710769, two24_pow=16777216, two25_scalbn=33554432, two_pow=2.0, twom25_scalbn=0.000000029802322387695312, Zero_fmod={-2147483646:0}, zero_pow=0.0] [L316] COND FALSE !(((iy) == 0)) VAL [bp_pow={7:0}, cp=0.9617967009544373, cp=0.000004701738362200558, cp=0.9617919921875, dp_h_pow={2:0}, dp_l_pow={-1073741822:0}, huge_pow=1000000015047466200000000000000, huge_scalbn=1000000015047466200000000000000, ivln2_h_pow=1.44268798828125, ivln2_l_pow=0.000007052607543300837, ivln2_pow=1.4426950216293335, L1_pow=0.6000000238418579, L2_pow=0.4285714328289032, L3_pow=0.3333333432674408, L4_pow=0.2727281153202057, L5_pow=0.23066075146198273, L6_pow=0.20697501301765442, lg2_h_pow=0.693145751953125, lg2_l_pow=0.0000014286065379565116, lg2_pow=0.6931471824645996, one_fmod=1.0, one_pow=1.0, one_sqrt=1.0, ovt_pow=0.00000004299566569443414, P1_pow=0.1666666716337204, P2_pow=-0.0027777778450399637, P3_pow=0.0000661375597701408, P4_pow=-0.0000016533901998627698, P5_pow=0.00000004138136944220605, tiny_pow=0.0000000000000000000000000000010000000031710769, tiny_scalbn=0.0000000000000000000000000000010000000031710769, tiny_sqrt=0.0000000000000000000000000000010000000031710769, two24_pow=16777216, two25_scalbn=33554432, two_pow=2.0, twom25_scalbn=0.000000029802322387695312, Zero_fmod={-2147483646:0}, zero_pow=0.0] [L319] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) VAL [bp_pow={7:0}, cp=0.9617919921875, cp=0.000004701738362200558, cp=0.9617967009544373, dp_h_pow={2:0}, dp_l_pow={-1073741822:0}, huge_pow=1000000015047466200000000000000, huge_scalbn=1000000015047466200000000000000, ivln2_h_pow=1.44268798828125, ivln2_l_pow=0.000007052607543300837, ivln2_pow=1.4426950216293335, L1_pow=0.6000000238418579, L2_pow=0.4285714328289032, L3_pow=0.3333333432674408, L4_pow=0.2727281153202057, L5_pow=0.23066075146198273, L6_pow=0.20697501301765442, lg2_h_pow=0.693145751953125, lg2_l_pow=0.0000014286065379565116, lg2_pow=0.6931471824645996, one_fmod=1.0, one_pow=1.0, one_sqrt=1.0, ovt_pow=0.00000004299566569443414, P1_pow=0.1666666716337204, P2_pow=-0.0027777778450399637, P3_pow=0.0000661375597701408, P4_pow=-0.0000016533901998627698, P5_pow=0.00000004138136944220605, tiny_pow=0.0000000000000000000000000000010000000031710769, tiny_scalbn=0.0000000000000000000000000000010000000031710769, tiny_sqrt=0.0000000000000000000000000000010000000031710769, two24_pow=16777216, two25_scalbn=33554432, two_pow=2.0, twom25_scalbn=0.000000029802322387695312, Zero_fmod={-2147483646:0}, zero_pow=0.0] [L320] COND TRUE ix == 0x3f800000 [L321] return one_pow; VAL [bp_pow={7:0}, cp=0.000004701738362200558, cp=0.9617967009544373, cp=0.9617919921875, dp_h_pow={2:0}, dp_l_pow={-1073741822:0}, huge_pow=1000000015047466200000000000000, huge_scalbn=1000000015047466200000000000000, ivln2_h_pow=1.44268798828125, ivln2_l_pow=0.000007052607543300837, ivln2_pow=1.4426950216293335, L1_pow=0.6000000238418579, L2_pow=0.4285714328289032, L3_pow=0.3333333432674408, L4_pow=0.2727281153202057, L5_pow=0.23066075146198273, L6_pow=0.20697501301765442, lg2_h_pow=0.693145751953125, lg2_l_pow=0.0000014286065379565116, lg2_pow=0.6931471824645996, one_fmod=1.0, one_pow=1.0, one_sqrt=1.0, ovt_pow=0.00000004299566569443414, P1_pow=0.1666666716337204, P2_pow=-0.0027777778450399637, P3_pow=0.0000661375597701408, P4_pow=-0.0000016533901998627698, P5_pow=0.00000004138136944220605, tiny_pow=0.0000000000000000000000000000010000000031710769, tiny_scalbn=0.0000000000000000000000000000010000000031710769, tiny_sqrt=0.0000000000000000000000000000010000000031710769, two24_pow=16777216, two25_scalbn=33554432, two_pow=2.0, twom25_scalbn=0.000000029802322387695312, Zero_fmod={-2147483646:0}, zero_pow=0.0] [L605] float res = __ieee754_powf(x, y); [L589] return x != x; VAL [bp_pow={7:0}, cp=0.9617919921875, cp=0.000004701738362200558, cp=0.9617967009544373, dp_h_pow={2:0}, dp_l_pow={-1073741822:0}, huge_pow=1000000015047466200000000000000, huge_scalbn=1000000015047466200000000000000, ivln2_h_pow=1.44268798828125, ivln2_l_pow=0.000007052607543300837, ivln2_pow=1.4426950216293335, L1_pow=0.6000000238418579, L2_pow=0.4285714328289032, L3_pow=0.3333333432674408, L4_pow=0.2727281153202057, L5_pow=0.23066075146198273, L6_pow=0.20697501301765442, lg2_h_pow=0.693145751953125, lg2_l_pow=0.0000014286065379565116, lg2_pow=0.6931471824645996, one_fmod=1.0, one_pow=1.0, one_sqrt=1.0, ovt_pow=0.00000004299566569443414, P1_pow=0.1666666716337204, P2_pow=-0.0027777778450399637, P3_pow=0.0000661375597701408, P4_pow=-0.0000016533901998627698, P5_pow=0.00000004138136944220605, tiny_pow=0.0000000000000000000000000000010000000031710769, tiny_scalbn=0.0000000000000000000000000000010000000031710769, tiny_sqrt=0.0000000000000000000000000000010000000031710769, two24_pow=16777216, two25_scalbn=33554432, two_pow=2.0, twom25_scalbn=0.000000029802322387695312, Zero_fmod={-2147483646:0}, zero_pow=0.0] [L608] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0870a.c", 3, "reach_error") VAL [bp_pow={7:0}, cp=0.9617967009544373, cp=0.9617919921875, cp=0.000004701738362200558, dp_h_pow={2:0}, dp_l_pow={-1073741822:0}, huge_pow=1000000015047466200000000000000, huge_scalbn=1000000015047466200000000000000, ivln2_h_pow=1.44268798828125, ivln2_l_pow=0.000007052607543300837, ivln2_pow=1.4426950216293335, L1_pow=0.6000000238418579, L2_pow=0.4285714328289032, L3_pow=0.3333333432674408, L4_pow=0.2727281153202057, L5_pow=0.23066075146198273, L6_pow=0.20697501301765442, lg2_h_pow=0.693145751953125, lg2_l_pow=0.0000014286065379565116, lg2_pow=0.6931471824645996, one_fmod=1.0, one_pow=1.0, one_sqrt=1.0, ovt_pow=0.00000004299566569443414, P1_pow=0.1666666716337204, P2_pow=-0.0027777778450399637, P3_pow=0.0000661375597701408, P4_pow=-0.0000016533901998627698, P5_pow=0.00000004138136944220605, tiny_pow=0.0000000000000000000000000000010000000031710769, tiny_scalbn=0.0000000000000000000000000000010000000031710769, tiny_sqrt=0.0000000000000000000000000000010000000031710769, two24_pow=16777216, two25_scalbn=33554432, two_pow=2.0, twom25_scalbn=0.000000029802322387695312, Zero_fmod={-2147483646:0}, zero_pow=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 201 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 272 SDtfs, 61 SDslu, 17 SDs, 0 SdLazy, 9 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=201occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 11 QuantifiedInterpolants, 2252 SizeOfPredicates, 8 NumberOfNonLiveVariables, 236 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 incorrect! Received shutdown request...