./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/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 91c18909fa64fb894260d901851992225c0131b1 ..................................................................................................................................................................... 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_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/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 91c18909fa64fb894260d901851992225c0131b1 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 07:47:10,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:47:10,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:47:10,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:47:10,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:47:10,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:47:10,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:47:10,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:47:10,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:47:10,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:47:10,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:47:10,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:47:10,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:47:10,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:47:10,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:47:10,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:47:10,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:47:10,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:47:10,501 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:47:10,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:47:10,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:47:10,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:47:10,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:47:10,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:47:10,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:47:10,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:47:10,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:47:10,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:47:10,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:47:10,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:47:10,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:47:10,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:47:10,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:47:10,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:47:10,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:47:10,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:47:10,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:47:10,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:47:10,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:47:10,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:47:10,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:47:10,522 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 07:47:10,543 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:47:10,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:47:10,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:47:10,544 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:47:10,544 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:47:10,544 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:47:10,544 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 07:47:10,544 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:47:10,544 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:47:10,544 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 07:47:10,544 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 07:47:10,545 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:47:10,545 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 07:47:10,545 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 07:47:10,545 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 07:47:10,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:47:10,546 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:47:10,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 07:47:10,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:47:10,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:47:10,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:47:10,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:47:10,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:47:10,547 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:47:10,547 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:47:10,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:47:10,547 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:47:10,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:47:10,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:47:10,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:47:10,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:47:10,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:47:10,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:47:10,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:47:10,548 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 07:47:10,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 07:47:10,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:47:10,549 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:47:10,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:47:10,549 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_d2718a33-b619-46e9-88cf-3e34acfc93b2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91c18909fa64fb894260d901851992225c0131b1 [2020-12-09 07:47:10,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:47:10,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:47:10,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:47:10,740 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:47:10,740 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:47:10,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-12-09 07:47:10,785 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/data/36f0928dd/966a2579c6f943d2928a5563faeeb9dc/FLAGd1dc6f41d [2020-12-09 07:47:11,212 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:47:11,213 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-12-09 07:47:11,222 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/data/36f0928dd/966a2579c6f943d2928a5563faeeb9dc/FLAGd1dc6f41d [2020-12-09 07:47:11,235 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/data/36f0928dd/966a2579c6f943d2928a5563faeeb9dc [2020-12-09 07:47:11,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:47:11,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:47:11,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:47:11,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:47:11,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:47:11,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:47:11" (1/1) ... [2020-12-09 07:47:11,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ec7d3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:47:11, skipping insertion in model container [2020-12-09 07:47:11,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:47:11" (1/1) ... [2020-12-09 07:47:11,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:47:11,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:47:11,590 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: fesetround not supported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:959) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleBuiltinFesetround(StandardFunctionHandler.java:1402) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1402) 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:1353) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1046) 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:1424) 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:3213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2293) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) 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) [2020-12-09 07:47:11,593 INFO L168 Benchmark]: Toolchain (without parser) took 353.25 ms. Allocated memory is still 117.4 MB. Free memory was 84.9 MB in the beginning and 72.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 07:47:11,594 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 117.4 MB. Free memory is still 93.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:47:11,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.02 ms. Allocated memory is still 117.4 MB. Free memory was 84.7 MB in the beginning and 72.8 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 07:47:11,595 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 117.4 MB. Free memory is still 93.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 351.02 ms. Allocated memory is still 117.4 MB. Free memory was 84.7 MB in the beginning and 72.8 MB in the end (delta: 11.9 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: fesetround not supported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: fesetround not supported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:959) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 07:47:12,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:47:12,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:47:12,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:47:12,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:47:12,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:47:12,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:47:12,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:47:12,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:47:12,946 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:47:12,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:47:12,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:47:12,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:47:12,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:47:12,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:47:12,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:47:12,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:47:12,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:47:12,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:47:12,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:47:12,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:47:12,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:47:12,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:47:12,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:47:12,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:47:12,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:47:12,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:47:12,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:47:12,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:47:12,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:47:12,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:47:12,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:47:12,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:47:12,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:47:12,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:47:12,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:47:12,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:47:12,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:47:12,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:47:12,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:47:12,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:47:12,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 07:47:12,993 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:47:12,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:47:12,994 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:47:12,994 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:47:12,995 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:47:12,995 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:47:12,995 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:47:12,995 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:47:12,995 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:47:12,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:47:12,996 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:47:12,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:47:12,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:47:12,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:47:12,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:47:12,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:47:12,996 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:47:12,996 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 07:47:12,997 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 07:47:12,997 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:47:12,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:47:12,997 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:47:12,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:47:12,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:47:12,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 07:47:12,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:47:12,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:47:12,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:47:12,998 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:47:12,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:47:12,998 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 07:47:12,998 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 07:47:12,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:47:12,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:47:12,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:47:12,999 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_d2718a33-b619-46e9-88cf-3e34acfc93b2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91c18909fa64fb894260d901851992225c0131b1 [2020-12-09 07:47:13,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:47:13,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:47:13,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:47:13,237 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:47:13,237 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:47:13,238 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-12-09 07:47:13,277 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/data/a007aaea8/566d1831f37c46719b519b25cbb600ff/FLAGd28a957ec [2020-12-09 07:47:13,737 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:47:13,737 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-12-09 07:47:13,748 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/data/a007aaea8/566d1831f37c46719b519b25cbb600ff/FLAGd28a957ec [2020-12-09 07:47:13,759 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/data/a007aaea8/566d1831f37c46719b519b25cbb600ff [2020-12-09 07:47:13,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:47:13,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:47:13,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:47:13,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:47:13,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:47:13,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:47:13" (1/1) ... [2020-12-09 07:47:13,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55303448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:47:13, skipping insertion in model container [2020-12-09 07:47:13,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:47:13" (1/1) ... [2020-12-09 07:47:13,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:47:13,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:47:14,123 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42829,42842] [2020-12-09 07:47:14,127 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42946,42959] [2020-12-09 07:47:14,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:47:14,150 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 07:47:14,182 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42829,42842] [2020-12-09 07:47:14,183 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42946,42959] [2020-12-09 07:47:14,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:47:14,406 INFO L208 MainTranslator]: Completed translation [2020-12-09 07:47:14,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:47:14 WrapperNode [2020-12-09 07:47:14,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 07:47:14,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 07:47:14,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 07:47:14,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 07:47:14,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:47:14" (1/1) ... [2020-12-09 07:47:14,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:47:14" (1/1) ... [2020-12-09 07:47:14,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 07:47:14,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 07:47:14,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 07:47:14,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 07:47:14,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:47:14" (1/1) ... [2020-12-09 07:47:14,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:47:14" (1/1) ... [2020-12-09 07:47:14,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:47:14" (1/1) ... [2020-12-09 07:47:14,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:47:14" (1/1) ... [2020-12-09 07:47:14,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:47:14" (1/1) ... [2020-12-09 07:47:14,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:47:14" (1/1) ... [2020-12-09 07:47:14,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:47:14" (1/1) ... [2020-12-09 07:47:14,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 07:47:14,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 07:47:14,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 07:47:14,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 07:47:14,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:47:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/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 [2020-12-09 07:47:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 07:47:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 07:47:14,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 07:47:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 07:47:14,927 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 07:47:14,927 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2020-12-09 07:47:14,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:47:14 BoogieIcfgContainer [2020-12-09 07:47:14,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 07:47:14,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 07:47:14,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 07:47:14,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 07:47:14,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:47:13" (1/3) ... [2020-12-09 07:47:14,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615f6afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:47:14, skipping insertion in model container [2020-12-09 07:47:14,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:47:14" (2/3) ... [2020-12-09 07:47:14,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615f6afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:47:14, skipping insertion in model container [2020-12-09 07:47:14,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:47:14" (3/3) ... [2020-12-09 07:47:14,934 INFO L111 eAbstractionObserver]: Analyzing ICFG float-rounding1.i [2020-12-09 07:47:14,945 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 07:47:14,947 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-09 07:47:14,955 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-09 07:47:14,974 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 07:47:14,974 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 07:47:14,974 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 07:47:14,974 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 07:47:14,974 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 07:47:14,974 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 07:47:14,974 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 07:47:14,974 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 07:47:14,985 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-12-09 07:47:14,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 07:47:14,988 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:47:14,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 07:47:14,989 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:47:14,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:47:14,994 INFO L82 PathProgramCache]: Analyzing trace with hash 889523607, now seen corresponding path program 1 times [2020-12-09 07:47:15,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:47:15,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205054303] [2020-12-09 07:47:15,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/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 [2020-12-09 07:47:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:47:15,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 07:47:15,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:47:15,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:47:15,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:47:15,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205054303] [2020-12-09 07:47:15,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:47:15,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 07:47:15,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835720430] [2020-12-09 07:47:15,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 07:47:15,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:47:15,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 07:47:15,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 07:47:15,128 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 3 states. [2020-12-09 07:47:15,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:47:15,178 INFO L93 Difference]: Finished difference Result 99 states and 138 transitions. [2020-12-09 07:47:15,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 07:47:15,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-09 07:47:15,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:47:15,186 INFO L225 Difference]: With dead ends: 99 [2020-12-09 07:47:15,186 INFO L226 Difference]: Without dead ends: 50 [2020-12-09 07:47:15,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 07:47:15,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-09 07:47:15,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 37. [2020-12-09 07:47:15,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-09 07:47:15,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2020-12-09 07:47:15,212 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 6 [2020-12-09 07:47:15,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:47:15,212 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-12-09 07:47:15,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 07:47:15,212 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2020-12-09 07:47:15,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 07:47:15,212 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:47:15,213 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:47:15,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 07:47:15,415 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:47:15,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:47:15,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1806855123, now seen corresponding path program 1 times [2020-12-09 07:47:15,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:47:15,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [756874912] [2020-12-09 07:47:15,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/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 [2020-12-09 07:47:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:47:15,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 07:47:15,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:47:15,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:47:15,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:47:15,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [756874912] [2020-12-09 07:47:15,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:47:15,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 07:47:15,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987468248] [2020-12-09 07:47:15,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 07:47:15,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:47:15,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 07:47:15,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 07:47:15,719 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 5 states. [2020-12-09 07:47:16,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:47:16,311 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2020-12-09 07:47:16,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 07:47:16,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-09 07:47:16,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:47:16,312 INFO L225 Difference]: With dead ends: 46 [2020-12-09 07:47:16,312 INFO L226 Difference]: Without dead ends: 44 [2020-12-09 07:47:16,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-09 07:47:16,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-09 07:47:16,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 35. [2020-12-09 07:47:16,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-09 07:47:16,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2020-12-09 07:47:16,317 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 7 [2020-12-09 07:47:16,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:47:16,317 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2020-12-09 07:47:16,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 07:47:16,317 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2020-12-09 07:47:16,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 07:47:16,318 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:47:16,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:47:16,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 07:47:16,520 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:47:16,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:47:16,522 INFO L82 PathProgramCache]: Analyzing trace with hash 961369448, now seen corresponding path program 1 times [2020-12-09 07:47:16,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:47:16,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [445401896] [2020-12-09 07:47:16,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/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 [2020-12-09 07:47:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:47:16,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 07:47:16,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:47:16,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:47:16,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:47:16,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [445401896] [2020-12-09 07:47:16,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:47:16,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 07:47:16,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922851346] [2020-12-09 07:47:16,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 07:47:16,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:47:16,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 07:47:16,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 07:47:16,658 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand 3 states. [2020-12-09 07:47:16,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:47:16,691 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2020-12-09 07:47:16,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 07:47:16,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-09 07:47:16,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:47:16,692 INFO L225 Difference]: With dead ends: 59 [2020-12-09 07:47:16,692 INFO L226 Difference]: Without dead ends: 35 [2020-12-09 07:47:16,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 07:47:16,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-09 07:47:16,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-12-09 07:47:16,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-09 07:47:16,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2020-12-09 07:47:16,696 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 11 [2020-12-09 07:47:16,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:47:16,696 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2020-12-09 07:47:16,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 07:47:16,697 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2020-12-09 07:47:16,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 07:47:16,697 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:47:16,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:47:16,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 07:47:16,899 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:47:16,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:47:16,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1557632932, now seen corresponding path program 1 times [2020-12-09 07:47:16,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:47:16,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512921761] [2020-12-09 07:47:16,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 07:47:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:47:17,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 07:47:17,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:47:17,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:47:17,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:47:17,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512921761] [2020-12-09 07:47:17,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:47:17,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 07:47:17,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261361566] [2020-12-09 07:47:17,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 07:47:17,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:47:17,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 07:47:17,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 07:47:17,147 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand 5 states. [2020-12-09 07:47:17,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:47:17,602 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2020-12-09 07:47:17,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 07:47:17,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-09 07:47:17,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:47:17,603 INFO L225 Difference]: With dead ends: 35 [2020-12-09 07:47:17,603 INFO L226 Difference]: Without dead ends: 33 [2020-12-09 07:47:17,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-09 07:47:17,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-09 07:47:17,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-09 07:47:17,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-09 07:47:17,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2020-12-09 07:47:17,607 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 14 [2020-12-09 07:47:17,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:47:17,607 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2020-12-09 07:47:17,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 07:47:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-12-09 07:47:17,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-09 07:47:17,607 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:47:17,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:47:17,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 07:47:17,809 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:47:17,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:47:17,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1314857025, now seen corresponding path program 1 times [2020-12-09 07:47:17,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:47:17,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1616435236] [2020-12-09 07:47:17,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 07:47:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:47:17,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-09 07:47:17,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:47:18,015 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 07:47:18,016 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 07:47:18,702 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-09 07:47:18,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:47:18,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:47:18,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1616435236] [2020-12-09 07:47:18,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:47:18,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-09 07:47:18,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972613299] [2020-12-09 07:47:18,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 07:47:18,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:47:18,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 07:47:18,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-09 07:47:18,739 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 9 states. [2020-12-09 07:47:19,249 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-09 07:47:21,557 WARN L197 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2020-12-09 07:47:21,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:47:21,772 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-12-09 07:47:21,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-09 07:47:21,773 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-12-09 07:47:21,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:47:21,773 INFO L225 Difference]: With dead ends: 33 [2020-12-09 07:47:21,774 INFO L226 Difference]: Without dead ends: 31 [2020-12-09 07:47:21,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-12-09 07:47:21,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-09 07:47:21,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-09 07:47:21,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-09 07:47:21,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2020-12-09 07:47:21,776 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 23 [2020-12-09 07:47:21,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:47:21,776 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2020-12-09 07:47:21,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 07:47:21,777 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2020-12-09 07:47:21,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-09 07:47:21,777 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:47:21,777 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:47:21,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 07:47:21,979 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:47:21,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:47:21,980 INFO L82 PathProgramCache]: Analyzing trace with hash 240169883, now seen corresponding path program 1 times [2020-12-09 07:47:21,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:47:21,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391288603] [2020-12-09 07:47:21,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 07:47:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:47:22,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-09 07:47:22,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:47:22,172 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 07:47:22,173 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 07:47:22,899 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-09 07:47:22,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:47:22,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:47:22,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391288603] [2020-12-09 07:47:22,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:47:22,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-09 07:47:22,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703886437] [2020-12-09 07:47:22,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 07:47:22,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:47:22,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 07:47:22,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-09 07:47:22,939 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 9 states. [2020-12-09 07:47:23,686 WARN L197 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-09 07:47:24,385 WARN L197 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-12-09 07:47:25,502 WARN L197 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2020-12-09 07:47:26,848 WARN L197 SmtUtils]: Spent 984.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-12-09 07:47:28,250 WARN L197 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2020-12-09 07:47:28,492 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-12-09 07:47:28,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:47:28,766 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2020-12-09 07:47:28,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-09 07:47:28,769 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-12-09 07:47:28,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:47:28,770 INFO L225 Difference]: With dead ends: 31 [2020-12-09 07:47:28,770 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 07:47:28,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-12-09 07:47:28,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 07:47:28,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 07:47:28,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 07:47:28,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 07:47:28,770 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2020-12-09 07:47:28,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:47:28,771 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 07:47:28,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 07:47:28,771 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 07:47:28,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 07:47:28,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 07:47:28,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 07:47:29,751 WARN L197 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 38 [2020-12-09 07:47:29,754 INFO L262 CegarLoopResult]: For program point L2-1(lines 2 4) no Hoare annotation was computed. [2020-12-09 07:47:29,754 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 1110) no Hoare annotation was computed. [2020-12-09 07:47:29,754 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-09 07:47:29,755 INFO L262 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-12-09 07:47:29,755 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,755 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,755 INFO L262 CegarLoopResult]: For program point L1110(line 1110) no Hoare annotation was computed. [2020-12-09 07:47:29,757 INFO L262 CegarLoopResult]: For program point L1110-1(line 1110) no Hoare annotation was computed. [2020-12-09 07:47:29,757 INFO L258 CegarLoopResult]: At program point L1110-3(lines 1097 1113) the Hoare annotation is: (and (exists ((ULTIMATE.start_roundingTest_~f1 (_ FloatingPoint 8 24)) (ULTIMATE.start_roundingTest_~f2 (_ FloatingPoint 8 24)) (v_prenex_4 RoundingMode)) (and (fp.lt ((_ to_fp 8 24) v_prenex_4 (/ 12582911.0 140737488355328.0)) ULTIMATE.start_roundingTest_~f2) (fp.lt ((_ to_fp 8 24) v_prenex_4 (/ 16777215.0 16777216.0)) ULTIMATE.start_roundingTest_~f1) (= (fp.add currentRoundingMode ULTIMATE.start_roundingTest_~f1 ULTIMATE.start_roundingTest_~f2) ULTIMATE.start_roundingTest_~roundDownSum~0) (fp.lt ULTIMATE.start_roundingTest_~f1 ((_ to_fp 8 24) v_prenex_4 (/ 8388609.0 8388608.0))) (fp.lt ULTIMATE.start_roundingTest_~f2 ((_ to_fp 8 24) v_prenex_4 (/ 12582913.0 140737488355328.0))))) (= currentRoundingMode roundTowardNegative) (= (_ bv1024 32) ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i) (exists ((v_prenex_2 RoundingMode)) (and (= ULTIMATE.start_roundingTest_~f1 ((_ to_fp 8 24) v_prenex_2 ((_ to_fp 11 53) v_prenex_2 1.0))) (= ULTIMATE.start_roundingTest_~f2 ((_ to_fp 8 24) v_prenex_2 ((_ to_fp 11 53) v_prenex_2 (/ 3.0 33554432.0))))))) [2020-12-09 07:47:29,757 INFO L262 CegarLoopResult]: For program point L1110-4(line 1110) no Hoare annotation was computed. [2020-12-09 07:47:29,757 INFO L262 CegarLoopResult]: For program point L1110-5(line 1110) no Hoare annotation was computed. [2020-12-09 07:47:29,757 INFO L265 CegarLoopResult]: At program point L1110-7(lines 1097 1113) the Hoare annotation is: true [2020-12-09 07:47:29,757 INFO L265 CegarLoopResult]: At program point L1135(lines 1116 1136) the Hoare annotation is: true [2020-12-09 07:47:29,757 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 1110) no Hoare annotation was computed. [2020-12-09 07:47:29,757 INFO L262 CegarLoopResult]: For program point L1103(line 1103) no Hoare annotation was computed. [2020-12-09 07:47:29,757 INFO L262 CegarLoopResult]: For program point L1103-1(line 1103) no Hoare annotation was computed. [2020-12-09 07:47:29,757 INFO L262 CegarLoopResult]: For program point L1103-3(line 1103) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L1103-4(line 1103) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L1103-5(line 1103) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L1103-7(line 1103) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-3(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-5(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-7(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1103) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-9(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-10(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-12(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-14(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-16(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-18(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-19(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-21(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-23(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-25(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-27(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-28(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-30(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,758 INFO L262 CegarLoopResult]: For program point L-1-32(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,759 INFO L262 CegarLoopResult]: For program point L-1-34(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,759 INFO L262 CegarLoopResult]: For program point L-1-36(line -1) no Hoare annotation was computed. [2020-12-09 07:47:29,759 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 1103) no Hoare annotation was computed. [2020-12-09 07:47:29,759 INFO L262 CegarLoopResult]: For program point L2(lines 2 4) no Hoare annotation was computed. [2020-12-09 07:47:29,763 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-09 07:47:29,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-09 07:47:29,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-09 07:47:29,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-09 07:47:29,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-09 07:47:29,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,764 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-09 07:47:29,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,766 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-12-09 07:47:29,767 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-09 07:47:29,767 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-09 07:47:29,767 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-09 07:47:29,767 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-09 07:47:29,770 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,771 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-09 07:47:29,771 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,771 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-09 07:47:29,771 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-09 07:47:29,771 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-09 07:47:29,771 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-09 07:47:29,771 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,771 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-09 07:47:29,771 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,771 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-12-09 07:47:29,772 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-09 07:47:29,772 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-09 07:47:29,772 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-09 07:47:29,772 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-09 07:47:29,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:47:29 BoogieIcfgContainer [2020-12-09 07:47:29,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 07:47:29,774 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 07:47:29,774 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 07:47:29,774 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 07:47:29,775 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:47:14" (3/4) ... [2020-12-09 07:47:29,777 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 07:47:29,784 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2020-12-09 07:47:29,784 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2020-12-09 07:47:29,785 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-09 07:47:29,785 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-09 07:47:29,801 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists ULTIMATE.start_roundingTest_~f1 : C_FLOAT, ULTIMATE.start_roundingTest_~f2 : C_FLOAT, v_prenex_4 : FloatRoundingMode :: (((~fp.lt~FLOAT(~to_fp~LONGDOUBLE(v_prenex_4, 12582911/140737488355328), ULTIMATE.start_roundingTest_~f2) && ~fp.lt~FLOAT(~to_fp~LONGDOUBLE(v_prenex_4, 16777215/16777216), ULTIMATE.start_roundingTest_~f1)) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_roundingTest_~f1, ULTIMATE.start_roundingTest_~f2) == roundDownSum) && ~fp.lt~FLOAT(ULTIMATE.start_roundingTest_~f1, ~to_fp~LONGDOUBLE(v_prenex_4, 8388609/8388608))) && ~fp.lt~FLOAT(ULTIMATE.start_roundingTest_~f2, ~to_fp~LONGDOUBLE(v_prenex_4, 12582913/140737488355328))) && unknown-currentRoundingMode-unknown == ~roundTowardNegative) && 1024bv32 == unknown-i-unknown) && (\exists v_prenex_2 : FloatRoundingMode :: f1 == ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 1.0)) && f2 == ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 3/33554432))) [2020-12-09 07:47:29,813 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d2718a33-b619-46e9-88cf-3e34acfc93b2/bin/utaipan/witness.graphml [2020-12-09 07:47:29,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 07:47:29,814 INFO L168 Benchmark]: Toolchain (without parser) took 16052.01 ms. Allocated memory was 48.2 MB in the beginning and 75.5 MB in the end (delta: 27.3 MB). Free memory was 25.0 MB in the beginning and 48.7 MB in the end (delta: -23.7 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2020-12-09 07:47:29,814 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 48.2 MB. Free memory was 30.8 MB in the beginning and 30.8 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:47:29,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.49 ms. Allocated memory was 48.2 MB in the beginning and 75.5 MB in the end (delta: 27.3 MB). Free memory was 24.9 MB in the beginning and 46.1 MB in the end (delta: -21.2 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2020-12-09 07:47:29,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.12 ms. Allocated memory is still 75.5 MB. Free memory was 46.1 MB in the beginning and 43.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:47:29,815 INFO L168 Benchmark]: Boogie Preprocessor took 19.79 ms. Allocated memory is still 75.5 MB. Free memory was 43.5 MB in the beginning and 41.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:47:29,816 INFO L168 Benchmark]: RCFGBuilder took 460.56 ms. Allocated memory is still 75.5 MB. Free memory was 41.9 MB in the beginning and 46.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 07:47:29,816 INFO L168 Benchmark]: TraceAbstraction took 14844.39 ms. Allocated memory is still 75.5 MB. Free memory was 46.2 MB in the beginning and 52.3 MB in the end (delta: -6.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:47:29,816 INFO L168 Benchmark]: Witness Printer took 39.20 ms. Allocated memory is still 75.5 MB. Free memory was 52.3 MB in the beginning and 48.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 07:47:29,818 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 48.2 MB. Free memory was 30.8 MB in the beginning and 30.8 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 643.49 ms. Allocated memory was 48.2 MB in the beginning and 75.5 MB in the end (delta: 27.3 MB). Free memory was 24.9 MB in the beginning and 46.1 MB in the end (delta: -21.2 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.12 ms. Allocated memory is still 75.5 MB. Free memory was 46.1 MB in the beginning and 43.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.79 ms. Allocated memory is still 75.5 MB. Free memory was 43.5 MB in the beginning and 41.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 460.56 ms. Allocated memory is still 75.5 MB. Free memory was 41.9 MB in the beginning and 46.7 MB in the end (delta: -4.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14844.39 ms. Allocated memory is still 75.5 MB. Free memory was 46.2 MB in the beginning and 52.3 MB in the end (delta: -6.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. * Witness Printer took 39.20 ms. Allocated memory is still 75.5 MB. Free memory was 52.3 MB in the beginning and 48.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1110]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1110]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1103]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1103]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1097]: Loop Invariant [2020-12-09 07:47:29,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-09 07:47:29,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-09 07:47:29,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-09 07:47:29,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-09 07:47:29,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-09 07:47:29,823 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-09 07:47:29,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,824 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-12-09 07:47:29,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-09 07:47:29,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-09 07:47:29,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-09 07:47:29,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-09 07:47:29,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-09 07:47:29,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-09 07:47:29,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-09 07:47:29,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-09 07:47:29,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-09 07:47:29,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-09 07:47:29,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-09 07:47:29,825 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-12-09 07:47:29,825 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-09 07:47:29,826 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-09 07:47:29,826 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-09 07:47:29,826 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] Derived loop invariant: (((\exists ULTIMATE.start_roundingTest_~f1 : C_FLOAT, ULTIMATE.start_roundingTest_~f2 : C_FLOAT, v_prenex_4 : FloatRoundingMode :: (((~fp.lt~FLOAT(~to_fp~LONGDOUBLE(v_prenex_4, 12582911/140737488355328), ULTIMATE.start_roundingTest_~f2) && ~fp.lt~FLOAT(~to_fp~LONGDOUBLE(v_prenex_4, 16777215/16777216), ULTIMATE.start_roundingTest_~f1)) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_roundingTest_~f1, ULTIMATE.start_roundingTest_~f2) == roundDownSum) && ~fp.lt~FLOAT(ULTIMATE.start_roundingTest_~f1, ~to_fp~LONGDOUBLE(v_prenex_4, 8388609/8388608))) && ~fp.lt~FLOAT(ULTIMATE.start_roundingTest_~f2, ~to_fp~LONGDOUBLE(v_prenex_4, 12582913/140737488355328))) && unknown-currentRoundingMode-unknown == ~roundTowardNegative) && 1024bv32 == unknown-i-unknown) && (\exists v_prenex_2 : FloatRoundingMode :: f1 == ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 1.0)) && f2 == ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 3/33554432))) - InvariantResult [Line: 1097]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1116]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 194 SDtfs, 256 SDslu, 148 SDs, 0 SdLazy, 234 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 6 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 53 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 111 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 85 ConstructedInterpolants, 34 QuantifiedInterpolants, 20316 SizeOfPredicates, 44 NumberOfNonLiveVariables, 271 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...