./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c136c8e0a6da9b319fcfd35b2efbb1a6d62dd3a5 ............................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c136c8e0a6da9b319fcfd35b2efbb1a6d62dd3a5 ............................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:19:02,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:19:02,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:19:02,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:19:02,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:19:02,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:19:02,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:19:02,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:19:02,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:19:02,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:19:02,244 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:19:02,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:19:02,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:19:02,245 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:19:02,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:19:02,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:19:02,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:19:02,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:19:02,249 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:19:02,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:19:02,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:19:02,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:19:02,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:19:02,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:19:02,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:19:02,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:19:02,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:19:02,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:19:02,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:19:02,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:19:02,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:19:02,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:19:02,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:19:02,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:19:02,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:19:02,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:19:02,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:19:02,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:19:02,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:19:02,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:19:02,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:19:02,261 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 16:19:02,271 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:19:02,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:19:02,272 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:19:02,272 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:19:02,272 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:19:02,272 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:19:02,272 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 16:19:02,272 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:19:02,273 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:19:02,273 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 16:19:02,273 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 16:19:02,273 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:19:02,273 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 16:19:02,273 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 16:19:02,273 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 16:19:02,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:19:02,274 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:19:02,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:19:02,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:19:02,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:19:02,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:19:02,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:19:02,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:19:02,275 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:19:02,275 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:19:02,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:19:02,275 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:19:02,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:19:02,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:19:02,275 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:19:02,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:19:02,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:19:02,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:19:02,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:19:02,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:19:02,276 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 16:19:02,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:19:02,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:19:02,276 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:19:02,277 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:19:02,277 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/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(__VERIFIER_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 -> c136c8e0a6da9b319fcfd35b2efbb1a6d62dd3a5 [2019-12-07 16:19:02,373 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:19:02,382 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:19:02,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:19:02,385 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:19:02,386 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:19:02,386 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i [2019-12-07 16:19:02,424 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/data/5000d3e15/2c678d0865b64458a863d8d6d566137c/FLAGaa4746b41 [2019-12-07 16:19:02,877 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:19:02,878 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i [2019-12-07 16:19:02,887 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/data/5000d3e15/2c678d0865b64458a863d8d6d566137c/FLAGaa4746b41 [2019-12-07 16:19:02,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/data/5000d3e15/2c678d0865b64458a863d8d6d566137c [2019-12-07 16:19:02,898 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:19:02,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:19:02,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:19:02,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:19:02,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:19:02,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:19:02" (1/1) ... [2019-12-07 16:19:02,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e308e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:02, skipping insertion in model container [2019-12-07 16:19:02,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:19:02" (1/1) ... [2019-12-07 16:19:02,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:19:02,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:19:03,235 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: isnan 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.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1652) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1385) 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:1064) 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:2326) 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:697) 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:2326) 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:698) 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:2326) 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:2326) 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:1553) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1029) 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:1407) 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:3458) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:571) 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:125) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-12-07 16:19:03,239 INFO L168 Benchmark]: Toolchain (without parser) took 339.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -153.4 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:03,240 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:19:03,240 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -153.4 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:03,241 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 338.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.4 MB). Free memory was 935.4 MB in the beginning and 1.1 GB in the end (delta: -153.4 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isnan de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isnan: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 16:19:04,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:19:04,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:19:04,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:19:04,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:19:04,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:19:04,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:19:04,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:19:04,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:19:04,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:19:04,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:19:04,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:19:04,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:19:04,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:19:04,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:19:04,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:19:04,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:19:04,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:19:04,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:19:04,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:19:04,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:19:04,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:19:04,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:19:04,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:19:04,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:19:04,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:19:04,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:19:04,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:19:04,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:19:04,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:19:04,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:19:04,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:19:04,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:19:04,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:19:04,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:19:04,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:19:04,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:19:04,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:19:04,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:19:04,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:19:04,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:19:04,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 16:19:04,408 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:19:04,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:19:04,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:19:04,409 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:19:04,409 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:19:04,409 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:19:04,409 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:19:04,409 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:19:04,409 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:19:04,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:19:04,410 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:19:04,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:19:04,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:19:04,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:19:04,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:19:04,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:19:04,411 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:19:04,411 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 16:19:04,411 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 16:19:04,411 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:19:04,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:19:04,411 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:19:04,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:19:04,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:19:04,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:19:04,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:19:04,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:19:04,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:19:04,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:19:04,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:19:04,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:19:04,413 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 16:19:04,413 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 16:19:04,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:19:04,413 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:19:04,413 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:19:04,413 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/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(__VERIFIER_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 -> c136c8e0a6da9b319fcfd35b2efbb1a6d62dd3a5 [2019-12-07 16:19:04,610 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:19:04,617 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:19:04,620 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:19:04,621 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:19:04,621 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:19:04,622 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i [2019-12-07 16:19:04,660 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/data/a5c8caf2b/4b37df74a2b14ba4982135694c3d4194/FLAG6bed15440 [2019-12-07 16:19:05,165 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:19:05,165 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i [2019-12-07 16:19:05,176 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/data/a5c8caf2b/4b37df74a2b14ba4982135694c3d4194/FLAG6bed15440 [2019-12-07 16:19:05,691 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/data/a5c8caf2b/4b37df74a2b14ba4982135694c3d4194 [2019-12-07 16:19:05,694 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:19:05,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:19:05,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:19:05,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:19:05,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:19:05,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:19:05" (1/1) ... [2019-12-07 16:19:05,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f54dcc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:05, skipping insertion in model container [2019-12-07 16:19:05,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:19:05" (1/1) ... [2019-12-07 16:19:05,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:19:05,741 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:19:06,032 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:19:06,037 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:19:06,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:19:06,275 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:19:06,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:06 WrapperNode [2019-12-07 16:19:06,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:19:06,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:19:06,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:19:06,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:19:06,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:06" (1/1) ... [2019-12-07 16:19:06,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:06" (1/1) ... [2019-12-07 16:19:06,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:19:06,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:19:06,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:19:06,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:19:06,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:06" (1/1) ... [2019-12-07 16:19:06,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:06" (1/1) ... [2019-12-07 16:19:06,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:06" (1/1) ... [2019-12-07 16:19:06,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:06" (1/1) ... [2019-12-07 16:19:06,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:06" (1/1) ... [2019-12-07 16:19:06,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:06" (1/1) ... [2019-12-07 16:19:06,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:06" (1/1) ... [2019-12-07 16:19:06,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:19:06,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:19:06,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:19:06,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:19:06,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/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 [2019-12-07 16:19:06,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:19:06,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:19:06,820 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:19:06,820 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 16:19:06,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:19:06 BoogieIcfgContainer [2019-12-07 16:19:06,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:19:06,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:19:06,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:19:06,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:19:06,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:19:05" (1/3) ... [2019-12-07 16:19:06,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701a3c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:19:06, skipping insertion in model container [2019-12-07 16:19:06,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:19:06" (2/3) ... [2019-12-07 16:19:06,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701a3c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:19:06, skipping insertion in model container [2019-12-07 16:19:06,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:19:06" (3/3) ... [2019-12-07 16:19:06,826 INFO L109 eAbstractionObserver]: Analyzing ICFG float-to-double1.i [2019-12-07 16:19:06,833 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:19:06,837 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:19:06,844 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:19:06,859 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:19:06,859 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:19:06,859 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:19:06,859 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:19:06,859 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:19:06,859 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:19:06,859 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:19:06,859 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:19:06,868 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-12-07 16:19:06,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 16:19:06,871 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:19:06,872 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 16:19:06,872 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:19:06,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:19:06,876 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-12-07 16:19:06,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:19:06,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333274370] [2019-12-07 16:19:06,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/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 [2019-12-07 16:19:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:19:07,023 WARN L262 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 16:19:07,026 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:19:07,763 WARN L192 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-12-07 16:19:08,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:19:08,524 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:19:10,502 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:19:12,518 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~f~0_6 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_6)))) (or (fp.isNaN .cse0) (fp.eq v_ULTIMATE.start_main_~f~0_6 .cse0)))) (forall ((v_ULTIMATE.start_main_~f~0_6 (_ FloatingPoint 8 24))) (or (fp.isNaN v_ULTIMATE.start_main_~f~0_6) (fp.eq v_ULTIMATE.start_main_~f~0_6 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_6)))))) is different from false [2019-12-07 16:19:14,535 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~f~0_6 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_6)))) (or (fp.isNaN .cse0) (fp.eq v_ULTIMATE.start_main_~f~0_6 .cse0)))) (forall ((v_ULTIMATE.start_main_~f~0_6 (_ FloatingPoint 8 24))) (or (fp.isNaN v_ULTIMATE.start_main_~f~0_6) (fp.eq v_ULTIMATE.start_main_~f~0_6 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_6)))))) is different from true [2019-12-07 16:19:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:19:14,537 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333274370] [2019-12-07 16:19:14,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:19:14,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 16:19:14,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727584910] [2019-12-07 16:19:14,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 16:19:14,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:19:14,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:19:14,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=12, Unknown=2, NotChecked=6, Total=30 [2019-12-07 16:19:14,552 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 6 states. [2019-12-07 16:19:16,573 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~f~0_6 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_6)))) (or (fp.isNaN .cse0) (fp.eq v_ULTIMATE.start_main_~f~0_6 .cse0)))) (forall ((v_ULTIMATE.start_main_~f~0_6 (_ FloatingPoint 8 24))) (or (fp.isNaN v_ULTIMATE.start_main_~f~0_6) (fp.eq v_ULTIMATE.start_main_~f~0_6 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_6))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2019-12-07 16:19:17,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:19:17,316 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-07 16:19:17,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:19:17,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-12-07 16:19:17,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:19:17,332 INFO L225 Difference]: With dead ends: 11 [2019-12-07 16:19:17,332 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 16:19:17,334 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=12, Invalid=13, Unknown=3, NotChecked=14, Total=42 [2019-12-07 16:19:17,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 16:19:17,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 16:19:17,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 16:19:17,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 16:19:17,351 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-12-07 16:19:17,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:19:17,351 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:19:17,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 16:19:17,351 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:19:17,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 16:19:17,553 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 16:19:17,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 16:19:17,569 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 16:19:17,569 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 16:19:17,570 INFO L246 CegarLoopResult]: For program point L958(lines 958 966) no Hoare annotation was computed. [2019-12-07 16:19:17,571 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 16:19:17,571 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 16:19:17,572 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 965) no Hoare annotation was computed. [2019-12-07 16:19:17,572 INFO L246 CegarLoopResult]: For program point L965(line 965) no Hoare annotation was computed. [2019-12-07 16:19:17,572 INFO L246 CegarLoopResult]: For program point L965-1(line 965) no Hoare annotation was computed. [2019-12-07 16:19:17,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:19:17 BoogieIcfgContainer [2019-12-07 16:19:17,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:19:17,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:19:17,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:19:17,586 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:19:17,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:19:06" (3/4) ... [2019-12-07 16:19:17,591 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 16:19:17,601 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 16:19:17,602 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 16:19:17,602 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 16:19:17,627 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_02383a61-da6c-4bfa-b7c7-cb664ac7bf28/bin/utaipan/witness.graphml [2019-12-07 16:19:17,627 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:19:17,628 INFO L168 Benchmark]: Toolchain (without parser) took 11933.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.1 MB). Free memory was 945.7 MB in the beginning and 1.0 GB in the end (delta: -90.5 MB). Peak memory consumption was 94.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:17,628 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:19:17,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 580.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.1 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -137.9 MB). Peak memory consumption was 58.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:17,629 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:19:17,629 INFO L168 Benchmark]: Boogie Preprocessor took 14.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:17,630 INFO L168 Benchmark]: RCFGBuilder took 494.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:17,630 INFO L168 Benchmark]: TraceAbstraction took 10762.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:19:17,630 INFO L168 Benchmark]: Witness Printer took 41.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:19:17,632 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 580.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.1 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -137.9 MB). Peak memory consumption was 58.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 494.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10762.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 31.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 11.5 GB. * Witness Printer took 41.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 965]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 10.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 3 SDslu, 4 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 144 SizeOfPredicates, 4 NumberOfNonLiveVariables, 9 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...