./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 579faea91306b70f4f1704c1b6463ea271867143 ................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 579faea91306b70f4f1704c1b6463ea271867143 ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:34:38,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:34:38,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:34:38,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:34:38,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:34:38,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:34:38,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:34:38,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:34:38,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:34:38,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:34:38,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:34:38,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:34:38,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:34:38,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:34:38,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:34:38,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:34:38,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:34:38,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:34:38,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:34:38,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:34:38,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:34:38,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:34:38,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:34:38,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:34:38,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:34:38,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:34:38,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:34:38,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:34:38,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:34:38,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:34:38,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:34:38,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:34:38,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:34:38,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:34:38,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:34:38,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:34:38,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:34:38,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:34:38,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:34:38,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:34:38,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:34:38,520 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:34:38,551 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:34:38,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:34:38,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:34:38,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:34:38,553 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:34:38,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:34:38,554 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:34:38,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:34:38,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:34:38,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:34:38,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:34:38,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:34:38,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:34:38,556 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:34:38,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:34:38,556 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:34:38,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:34:38,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:34:38,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:34:38,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:34:38,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:34:38,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:34:38,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:34:38,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:34:38,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:34:38,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:34:38,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:34:38,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:34:38,560 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 579faea91306b70f4f1704c1b6463ea271867143 [2019-11-27 23:34:38,879 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:34:38,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:34:38,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:34:38,897 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:34:38,897 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:34:38,898 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2019-11-27 23:34:38,964 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/162106e3b/55e00d029fe24c15a1e6e930c65d97c5/FLAGc6f3883e0 [2019-11-27 23:34:39,516 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:34:39,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2019-11-27 23:34:39,532 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/162106e3b/55e00d029fe24c15a1e6e930c65d97c5/FLAGc6f3883e0 [2019-11-27 23:34:39,775 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/162106e3b/55e00d029fe24c15a1e6e930c65d97c5 [2019-11-27 23:34:39,779 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:34:39,781 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:34:39,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:34:39,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:34:39,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:34:39,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:39" (1/1) ... [2019-11-27 23:34:39,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c44cb89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:39, skipping insertion in model container [2019-11-27 23:34:39,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:39" (1/1) ... [2019-11-27 23:34:39,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:34:39,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:34:40,459 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.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1645) 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:2332) 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:2332) 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:2332) 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:3464) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2282) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-27 23:34:40,469 INFO L168 Benchmark]: Toolchain (without parser) took 686.94 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:40,470 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:34:40,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.78 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:40,474 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 683.78 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 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: 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... ### Bit-precise run ### This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:34:42,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:34:42,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:34:42,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:34:42,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:34:42,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:34:42,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:34:42,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:34:42,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:34:42,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:34:42,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:34:42,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:34:42,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:34:42,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:34:42,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:34:42,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:34:42,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:34:42,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:34:42,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:34:42,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:34:42,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:34:42,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:34:42,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:34:42,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:34:42,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:34:42,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:34:42,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:34:42,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:34:42,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:34:42,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:34:42,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:34:42,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:34:42,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:34:42,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:34:42,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:34:42,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:34:42,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:34:42,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:34:42,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:34:42,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:34:42,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:34:42,400 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:34:42,436 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:34:42,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:34:42,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:34:42,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:34:42,444 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:34:42,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:34:42,445 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:34:42,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:34:42,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:34:42,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:34:42,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:34:42,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:34:42,449 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:34:42,450 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:34:42,450 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:34:42,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:34:42,451 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:34:42,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:34:42,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:34:42,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:34:42,453 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:34:42,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:34:42,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:34:42,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:34:42,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:34:42,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:34:42,455 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:34:42,455 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:34:42,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:34:42,456 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:34:42,457 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 579faea91306b70f4f1704c1b6463ea271867143 [2019-11-27 23:34:42,804 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:34:42,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:34:42,821 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:34:42,822 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:34:42,823 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:34:42,824 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2019-11-27 23:34:42,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/563d1590c/3b74bb257945499bafde55aaef02767a/FLAGf52b5c0fb [2019-11-27 23:34:43,448 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:34:43,449 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float_lib2.i [2019-11-27 23:34:43,466 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/563d1590c/3b74bb257945499bafde55aaef02767a/FLAGf52b5c0fb [2019-11-27 23:34:43,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/563d1590c/3b74bb257945499bafde55aaef02767a [2019-11-27 23:34:43,748 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:34:43,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:34:43,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:34:43,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:34:43,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:34:43,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:43" (1/1) ... [2019-11-27 23:34:43,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b3a5153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:43, skipping insertion in model container [2019-11-27 23:34:43,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:34:43" (1/1) ... [2019-11-27 23:34:43,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:34:43,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:34:44,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:34:44,552 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:34:44,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:34:44,908 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:34:44,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:44 WrapperNode [2019-11-27 23:34:44,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:34:44,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:34:44,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:34:44,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:34:44,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:44" (1/1) ... [2019-11-27 23:34:44,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:44" (1/1) ... [2019-11-27 23:34:44,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:34:44,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:34:44,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:34:44,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:34:44,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:44" (1/1) ... [2019-11-27 23:34:44,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:44" (1/1) ... [2019-11-27 23:34:44,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:44" (1/1) ... [2019-11-27 23:34:44,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:44" (1/1) ... [2019-11-27 23:34:44,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:44" (1/1) ... [2019-11-27 23:34:44,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:44" (1/1) ... [2019-11-27 23:34:44,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:44" (1/1) ... [2019-11-27 23:34:44,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:34:44,996 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:34:44,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:34:44,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:34:44,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-27 23:34:45,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:34:45,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:34:45,335 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:34:45,336 INFO L297 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-27 23:34:45,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:45 BoogieIcfgContainer [2019-11-27 23:34:45,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:34:45,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:34:45,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:34:45,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:34:45,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:34:43" (1/3) ... [2019-11-27 23:34:45,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ca9004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:34:45, skipping insertion in model container [2019-11-27 23:34:45,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:34:44" (2/3) ... [2019-11-27 23:34:45,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ca9004 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:34:45, skipping insertion in model container [2019-11-27 23:34:45,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:45" (3/3) ... [2019-11-27 23:34:45,349 INFO L109 eAbstractionObserver]: Analyzing ICFG float_lib2.i [2019-11-27 23:34:45,361 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:34:45,370 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-11-27 23:34:45,382 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-11-27 23:34:45,405 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:34:45,405 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:34:45,406 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:34:45,406 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:34:45,406 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:34:45,406 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:34:45,407 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:34:45,407 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:34:45,422 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-11-27 23:34:45,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-27 23:34:45,427 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:34:45,428 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-27 23:34:45,428 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:34:45,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:34:45,433 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-11-27 23:34:45,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:34:45,444 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198826008] [2019-11-27 23:34:45,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-27 23:34:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:34:45,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-27 23:34:45,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:34:45,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:45,581 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:34:45,759 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 3 [2019-11-27 23:34:45,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:45,767 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198826008] [2019-11-27 23:34:45,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:34:45,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-27 23:34:45,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869807661] [2019-11-27 23:34:45,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:34:45,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:34:45,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:34:45,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:34:45,794 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2019-11-27 23:34:45,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:34:45,858 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2019-11-27 23:34:45,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:34:45,861 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-27 23:34:45,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:34:45,872 INFO L225 Difference]: With dead ends: 41 [2019-11-27 23:34:45,873 INFO L226 Difference]: Without dead ends: 12 [2019-11-27 23:34:45,879 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:34:45,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-27 23:34:45,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-27 23:34:45,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-27 23:34:45,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-11-27 23:34:45,913 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 4 [2019-11-27 23:34:45,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:34:45,914 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-11-27 23:34:45,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:34:45,914 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-11-27 23:34:45,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-27 23:34:45,914 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:34:45,915 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:34:46,117 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:34:46,118 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:34:46,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:34:46,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1908731737, now seen corresponding path program 1 times [2019-11-27 23:34:46,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:34:46,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586796912] [2019-11-27 23:34:46,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-27 23:34:46,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:34:46,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-27 23:34:46,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:34:46,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,185 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,186 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,187 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,188 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,188 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,189 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,190 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,198 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,199 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,200 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,200 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,208 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,209 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,210 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,211 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,212 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,220 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,222 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,223 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,225 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,232 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,233 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,234 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,235 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,235 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,236 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,237 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,246 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,249 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,261 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,263 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,265 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,274 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:34:46,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:46,296 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:34:46,430 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 3 [2019-11-27 23:34:46,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:34:46,439 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586796912] [2019-11-27 23:34:46,439 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:34:46,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2019-11-27 23:34:46,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117293847] [2019-11-27 23:34:46,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-27 23:34:46,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:34:46,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-27 23:34:46,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-27 23:34:46,442 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 5 states. [2019-11-27 23:34:46,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:34:46,498 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-11-27 23:34:46,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 23:34:46,498 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-27 23:34:46,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:34:46,499 INFO L225 Difference]: With dead ends: 12 [2019-11-27 23:34:46,499 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:34:46,500 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-27 23:34:46,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:34:46,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:34:46,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:34:46,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:34:46,502 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-27 23:34:46,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:34:46,502 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:34:46,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-27 23:34:46,502 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:34:46,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:34:46,703 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 23:34:46,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:34:46,751 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 370) no Hoare annotation was computed. [2019-11-27 23:34:46,752 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 366) no Hoare annotation was computed. [2019-11-27 23:34:46,752 INFO L246 CegarLoopResult]: For program point L370(line 370) no Hoare annotation was computed. [2019-11-27 23:34:46,752 INFO L246 CegarLoopResult]: For program point L370-2(line 370) no Hoare annotation was computed. [2019-11-27 23:34:46,753 INFO L246 CegarLoopResult]: For program point L366(line 366) no Hoare annotation was computed. [2019-11-27 23:34:46,753 INFO L246 CegarLoopResult]: For program point L366-2(lines 363 374) no Hoare annotation was computed. [2019-11-27 23:34:46,753 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:34:46,753 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 369) no Hoare annotation was computed. [2019-11-27 23:34:46,753 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:34:46,754 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:34:46,754 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 365) no Hoare annotation was computed. [2019-11-27 23:34:46,754 INFO L246 CegarLoopResult]: For program point L367(line 367) no Hoare annotation was computed. [2019-11-27 23:34:46,754 INFO L246 CegarLoopResult]: For program point L367-2(lines 363 374) no Hoare annotation was computed. [2019-11-27 23:34:46,755 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:34:46,755 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 368) no Hoare annotation was computed. [2019-11-27 23:34:46,755 INFO L246 CegarLoopResult]: For program point L372(line 372) no Hoare annotation was computed. [2019-11-27 23:34:46,755 INFO L246 CegarLoopResult]: For program point L372-1(line 372) no Hoare annotation was computed. [2019-11-27 23:34:46,755 INFO L246 CegarLoopResult]: For program point L372-3(line 372) no Hoare annotation was computed. [2019-11-27 23:34:46,756 INFO L246 CegarLoopResult]: For program point L368(line 368) no Hoare annotation was computed. [2019-11-27 23:34:46,756 INFO L246 CegarLoopResult]: For program point L368-2(lines 363 374) no Hoare annotation was computed. [2019-11-27 23:34:46,757 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 372) no Hoare annotation was computed. [2019-11-27 23:34:46,757 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 367) no Hoare annotation was computed. [2019-11-27 23:34:46,757 INFO L242 CegarLoopResult]: At program point L373(lines 362 374) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_main_~largestSubnormalFloat~0 ((_ to_fp 8 24) currentRoundingMode (/ 8388607.0 713623846352979940529142984724747568191373312.0)))) [2019-11-27 23:34:46,758 INFO L246 CegarLoopResult]: For program point L369(line 369) no Hoare annotation was computed. [2019-11-27 23:34:46,758 INFO L246 CegarLoopResult]: For program point L369-2(lines 363 374) no Hoare annotation was computed. [2019-11-27 23:34:46,758 INFO L246 CegarLoopResult]: For program point L365(line 365) no Hoare annotation was computed. [2019-11-27 23:34:46,758 INFO L246 CegarLoopResult]: For program point L365-1(line 365) no Hoare annotation was computed. [2019-11-27 23:34:46,758 INFO L246 CegarLoopResult]: For program point L365-3(lines 363 374) no Hoare annotation was computed. [2019-11-27 23:34:46,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:34:46,774 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:34:46,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:34:46 BoogieIcfgContainer [2019-11-27 23:34:46,779 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:34:46,780 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:34:46,780 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:34:46,780 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:34:46,781 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:34:45" (3/4) ... [2019-11-27 23:34:46,786 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:34:46,800 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-27 23:34:46,801 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-27 23:34:46,801 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 23:34:46,828 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) [2019-11-27 23:34:46,854 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:34:46,855 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:34:46,857 INFO L168 Benchmark]: Toolchain (without parser) took 3106.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 953.7 MB in the beginning and 892.5 MB in the end (delta: 61.2 MB). Peak memory consumption was 174.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:46,857 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:34:46,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1157.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 953.7 MB in the beginning and 1.0 GB in the end (delta: -47.7 MB). Peak memory consumption was 76.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:46,859 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.03 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:34:46,859 INFO L168 Benchmark]: Boogie Preprocessor took 27.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:34:46,860 INFO L168 Benchmark]: RCFGBuilder took 342.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 983.4 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:46,860 INFO L168 Benchmark]: TraceAbstraction took 1439.08 ms. Allocated memory is still 1.1 GB. Free memory was 983.4 MB in the beginning and 899.2 MB in the end (delta: 84.2 MB). Peak memory consumption was 84.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:46,861 INFO L168 Benchmark]: Witness Printer took 75.49 ms. Allocated memory is still 1.1 GB. Free memory was 899.2 MB in the beginning and 892.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:34:46,864 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1157.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 953.7 MB in the beginning and 1.0 GB in the end (delta: -47.7 MB). Peak memory consumption was 76.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.03 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 342.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 983.4 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1439.08 ms. Allocated memory is still 1.1 GB. Free memory was 983.4 MB in the beginning and 899.2 MB in the end (delta: 84.2 MB). Peak memory consumption was 84.2 MB. Max. memory is 11.5 GB. * Witness Printer took 75.49 ms. Allocated memory is still 1.1 GB. Free memory was 899.2 MB in the beginning and 892.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 366]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 369]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 370]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 372]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 368]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 365]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 367]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 362]: Loop Invariant [2019-11-27 23:34:46,875 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:34:46,875 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: largestSubnormalFloat == ~to_fp~LONGDOUBLE(currentRoundingMode, 8388607/713623846352979940529142984724747568191373312)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 7 error locations. Result: SAFE, OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 27 SDslu, 4 SDs, 0 SdLazy, 21 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 6 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 8 QuantifiedInterpolants, 769 SizeOfPredicates, 6 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...