./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF --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 dfbab9e5d88cf149f4b9ab5fe536f84371f1d923890981fbbe005b1f77367bf6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:10:26,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:10:26,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:10:26,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:10:26,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:10:26,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:10:26,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:10:26,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:10:26,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:10:26,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:10:26,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:10:26,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:10:26,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:10:26,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:10:26,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:10:26,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:10:26,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:10:26,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:10:26,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:10:26,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:10:26,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:10:26,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:10:26,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:10:26,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:10:26,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:10:26,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:10:26,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:10:26,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:10:26,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:10:26,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:10:26,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:10:26,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:10:26,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:10:26,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:10:26,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:10:26,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:10:26,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:10:26,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:10:26,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:10:26,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:10:26,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:10:26,106 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:10:26,129 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:10:26,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:10:26,131 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:10:26,131 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:10:26,131 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:10:26,131 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:10:26,131 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:10:26,132 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:10:26,132 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:10:26,132 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:10:26,132 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:10:26,132 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:10:26,132 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:10:26,133 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:10:26,133 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:10:26,133 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:10:26,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:10:26,134 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:10:26,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:10:26,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:10:26,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:10:26,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:10:26,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:10:26,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:10:26,135 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:10:26,135 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:10:26,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:10:26,136 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:10:26,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:10:26,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:10:26,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:10:26,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:10:26,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:10:26,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:10:26,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:10:26,137 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:10:26,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:10:26,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:10:26,138 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:10:26,138 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:10:26,138 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_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfbab9e5d88cf149f4b9ab5fe536f84371f1d923890981fbbe005b1f77367bf6 [2021-11-12 23:10:26,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:10:26,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:10:26,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:10:26,428 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:10:26,430 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:10:26,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2021-11-12 23:10:26,518 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/data/2aa214efe/1d0ec127268c4aee835309934e93742a/FLAGbbf2e8543 [2021-11-12 23:10:27,121 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:10:27,122 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2021-11-12 23:10:27,141 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/data/2aa214efe/1d0ec127268c4aee835309934e93742a/FLAGbbf2e8543 [2021-11-12 23:10:27,385 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/data/2aa214efe/1d0ec127268c4aee835309934e93742a [2021-11-12 23:10:27,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:10:27,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:10:27,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:10:27,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:10:27,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:10:27,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:10:27" (1/1) ... [2021-11-12 23:10:27,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74fc5da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:10:27, skipping insertion in model container [2021-11-12 23:10:27,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:10:27" (1/1) ... [2021-11-12 23:10:27,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:10:27,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:10:27,928 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1759) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) 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:1103) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2378) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2378) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:729) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1437) 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:1381) 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:1068) 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:1452) 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:3254) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2328) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) 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) [2021-11-12 23:10:27,935 INFO L158 Benchmark]: Toolchain (without parser) took 543.89ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 55.1MB in the beginning and 105.3MB in the end (delta: -50.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:10:27,936 INFO L158 Benchmark]: CDTParser took 14.83ms. Allocated memory is still 92.3MB. Free memory was 63.6MB in the beginning and 73.2MB in the end (delta: -9.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 23:10:27,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 541.30ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 54.9MB in the beginning and 105.3MB in the end (delta: -50.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 23:10:27,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 14.83ms. Allocated memory is still 92.3MB. Free memory was 63.6MB in the beginning and 73.2MB in the end (delta: -9.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 541.30ms. Allocated memory was 92.3MB in the beginning and 132.1MB in the end (delta: 39.8MB). Free memory was 54.9MB in the beginning and 105.3MB in the end (delta: -50.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF --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 dfbab9e5d88cf149f4b9ab5fe536f84371f1d923890981fbbe005b1f77367bf6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:10:30,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:10:30,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:10:30,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:10:30,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:10:30,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:10:30,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:10:30,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:10:30,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:10:30,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:10:30,355 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:10:30,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:10:30,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:10:30,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:10:30,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:10:30,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:10:30,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:10:30,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:10:30,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:10:30,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:10:30,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:10:30,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:10:30,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:10:30,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:10:30,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:10:30,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:10:30,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:10:30,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:10:30,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:10:30,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:10:30,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:10:30,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:10:30,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:10:30,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:10:30,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:10:30,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:10:30,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:10:30,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:10:30,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:10:30,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:10:30,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:10:30,394 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 23:10:30,422 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:10:30,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:10:30,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:10:30,424 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:10:30,425 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:10:30,425 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:10:30,425 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:10:30,426 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:10:30,426 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:10:30,426 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:10:30,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:10:30,428 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:10:30,428 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:10:30,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:10:30,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:10:30,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:10:30,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:10:30,429 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:10:30,429 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:10:30,429 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:10:30,430 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:10:30,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:10:30,430 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:10:30,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:10:30,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:10:30,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:10:30,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:10:30,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:10:30,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:10:30,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:10:30,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:10:30,433 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:10:30,433 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:10:30,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:10:30,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:10:30,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:10:30,434 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_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfbab9e5d88cf149f4b9ab5fe536f84371f1d923890981fbbe005b1f77367bf6 [2021-11-12 23:10:30,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:10:30,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:10:30,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:10:30,925 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:10:30,925 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:10:30,927 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2021-11-12 23:10:31,019 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/data/deb135303/420a6240884d41719da00e324acb87ed/FLAG1b4b49c87 [2021-11-12 23:10:31,686 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:10:31,687 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2021-11-12 23:10:31,708 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/data/deb135303/420a6240884d41719da00e324acb87ed/FLAG1b4b49c87 [2021-11-12 23:10:31,900 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/data/deb135303/420a6240884d41719da00e324acb87ed [2021-11-12 23:10:31,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:10:31,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:10:31,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:10:31,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:10:31,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:10:31,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:10:31" (1/1) ... [2021-11-12 23:10:31,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16417bb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:10:31, skipping insertion in model container [2021-11-12 23:10:31,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:10:31" (1/1) ... [2021-11-12 23:10:31,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:10:31,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:10:32,674 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40610,40623] [2021-11-12 23:10:32,700 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40902,40915] [2021-11-12 23:10:32,702 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40949,40962] [2021-11-12 23:10:32,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:10:32,718 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:10:32,764 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40610,40623] [2021-11-12 23:10:32,773 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40902,40915] [2021-11-12 23:10:32,777 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40949,40962] [2021-11-12 23:10:32,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:10:32,973 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:10:32,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:10:32 WrapperNode [2021-11-12 23:10:32,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:10:32,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:10:32,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:10:32,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:10:32,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:10:32" (1/1) ... [2021-11-12 23:10:33,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:10:32" (1/1) ... [2021-11-12 23:10:33,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:10:33,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:10:33,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:10:33,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:10:33,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:10:32" (1/1) ... [2021-11-12 23:10:33,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:10:32" (1/1) ... [2021-11-12 23:10:33,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:10:32" (1/1) ... [2021-11-12 23:10:33,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:10:32" (1/1) ... [2021-11-12 23:10:33,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:10:32" (1/1) ... [2021-11-12 23:10:33,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:10:32" (1/1) ... [2021-11-12 23:10:33,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:10:32" (1/1) ... [2021-11-12 23:10:33,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:10:33,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:10:33,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:10:33,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:10:33,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:10:32" (1/1) ... [2021-11-12 23:10:33,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:10:33,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:10:33,163 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:10:33,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:10:33,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:10:33,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:10:33,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:10:33,206 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 23:10:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 23:10:33,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:10:35,800 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:10:35,800 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:10:35,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:10:35 BoogieIcfgContainer [2021-11-12 23:10:35,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:10:35,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:10:35,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:10:35,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:10:35,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:10:31" (1/3) ... [2021-11-12 23:10:35,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78572777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:10:35, skipping insertion in model container [2021-11-12 23:10:35,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:10:32" (2/3) ... [2021-11-12 23:10:35,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78572777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:10:35, skipping insertion in model container [2021-11-12 23:10:35,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:10:35" (3/3) ... [2021-11-12 23:10:35,811 INFO L111 eAbstractionObserver]: Analyzing ICFG float-div1.i [2021-11-12 23:10:35,818 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:10:35,818 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-12 23:10:35,877 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:10:35,885 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:10:35,885 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-12 23:10:35,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:10:35,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 23:10:35,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:10:35,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:10:35,912 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:10:35,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:10:35,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1300304823, now seen corresponding path program 1 times [2021-11-12 23:10:35,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:10:35,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1211800651] [2021-11-12 23:10:35,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:10:35,934 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:10:35,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:10:35,940 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:10:35,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:10:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:10:36,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:10:36,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:10:36,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:10:36,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:10:36,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:10:36,588 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:10:36,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1211800651] [2021-11-12 23:10:36,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1211800651] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:10:36,589 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:10:36,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 23:10:36,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683118987] [2021-11-12 23:10:36,592 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:10:36,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:10:36,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:10:36,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:10:36,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:10:36,627 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-12 23:10:36,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:10:36,645 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2021-11-12 23:10:36,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:10:36,648 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-11-12 23:10:36,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:10:36,655 INFO L225 Difference]: With dead ends: 45 [2021-11-12 23:10:36,655 INFO L226 Difference]: Without dead ends: 20 [2021-11-12 23:10:36,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:10:36,679 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.72ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:10:36,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.72ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:10:36,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-12 23:10:36,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-12 23:10:36,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 16 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 23:10:36,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-11-12 23:10:36,734 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 10 [2021-11-12 23:10:36,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:10:36,735 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-11-12 23:10:36,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-12 23:10:36,735 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-11-12 23:10:36,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-12 23:10:36,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:10:36,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:10:36,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:10:36,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:10:36,956 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:10:36,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:10:36,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1357563125, now seen corresponding path program 1 times [2021-11-12 23:10:36,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:10:36,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582257408] [2021-11-12 23:10:36,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:10:36,959 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:10:36,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:10:36,962 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:10:36,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86250577-ea4d-4697-9334-6efa93a5f0f9/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:10:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:10:37,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:10:37,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:10:54,020 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((|ULTIMATE.start_inductiveStepHunt_~startState#1| (_ FloatingPoint 8 24))) (and (= (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) |c_ULTIMATE.start_inductiveStepHunt_~oneAfter~0#1|) (not (fp.isInfinite |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (not (fp.isSubnormal |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (fp.lt ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)) |ULTIMATE.start_inductiveStepHunt_~startState#1|)))) is different from false [2021-11-12 23:11:13,289 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_inductiveStepHunt_~startState#1| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (not (fp.gt (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse0 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven |ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div roundNearestTiesToEven .cse0 |ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse1)) (not (fp.isInfinite |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (not (fp.isSubnormal |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (fp.lt .cse1 |ULTIMATE.start_inductiveStepHunt_~startState#1|)))) is different from false [2021-11-12 23:11:15,348 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_inductiveStepHunt_~startState#1| (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (not (fp.gt (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse0 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven |ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div roundNearestTiesToEven .cse0 |ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse1)) (not (fp.isInfinite |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (not (fp.isSubnormal |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (fp.lt .cse1 |ULTIMATE.start_inductiveStepHunt_~startState#1|)))) is different from true [2021-11-12 23:11:15,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:11:15,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:11:21,662 WARN L838 $PredicateComparison]: unable to prove that (fp.gt (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from false [2021-11-12 23:11:23,745 WARN L860 $PredicateComparison]: unable to prove that (fp.gt (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| |c_ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from true [2021-11-12 23:12:05,588 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_inductiveStepHunt_~startState#1| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| |ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) .cse0) (not (fp.lt .cse0 |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (not (fp.isNormal |ULTIMATE.start_inductiveStepHunt_~startState#1|))))) is different from false [2021-11-12 23:12:07,674 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_inductiveStepHunt_~startState#1| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode |ULTIMATE.start_inductiveStepHunt_~startState#1| (fp.div c_currentRoundingMode |c_ULTIMATE.start_inductiveStepHunt_~target~0#1| |ULTIMATE.start_inductiveStepHunt_~startState#1|)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) .cse0) (not (fp.lt .cse0 |ULTIMATE.start_inductiveStepHunt_~startState#1|)) (not (fp.isNormal |ULTIMATE.start_inductiveStepHunt_~startState#1|))))) is different from true