./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0876.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/float-newlib/double_req_bl_0876.c -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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:34:17,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:34:17,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:34:17,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:34:17,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:34:17,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:34:17,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:34:17,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:34:17,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:34:17,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:34:17,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:34:17,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:34:17,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:34:17,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:34:17,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:34:17,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:34:17,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:34:17,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:34:17,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:34:17,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:34:17,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:34:17,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:34:17,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:34:17,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:34:17,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:34:17,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:34:17,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:34:17,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:34:17,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:34:17,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:34:17,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:34:17,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:34:17,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:34:17,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:34:17,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:34:17,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:34:17,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:34:17,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:34:17,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:34:17,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:34:17,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:34:17,455 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:34:17,480 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:34:17,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:34:17,481 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:34:17,481 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:34:17,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:34:17,482 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:34:17,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:34:17,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:34:17,483 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:34:17,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:34:17,484 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:34:17,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:34:17,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:34:17,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:34:17,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:34:17,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:34:17,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:34:17,485 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:34:17,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:34:17,485 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:34:17,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:34:17,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:34:17,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:34:17,486 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:34:17,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:34:17,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:34:17,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:34:17,487 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:34:17,487 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:34:17,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:34:17,487 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:34:17,487 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:34:17,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:34:17,488 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 [2022-02-20 16:34:17,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:34:17,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:34:17,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:34:17,718 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:34:17,718 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:34:17,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2022-02-20 16:34:17,782 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ee27399/10b6674f9ee64429a768f00ce751d161/FLAG21e0798db [2022-02-20 16:34:18,176 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:34:18,177 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2022-02-20 16:34:18,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ee27399/10b6674f9ee64429a768f00ce751d161/FLAG21e0798db [2022-02-20 16:34:18,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ee27399/10b6674f9ee64429a768f00ce751d161 [2022-02-20 16:34:18,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:34:18,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:34:18,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:34:18,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:34:18,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:34:18,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:34:18" (1/1) ... [2022-02-20 16:34:18,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692f5a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:34:18, skipping insertion in model container [2022-02-20 16:34:18,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:34:18" (1/1) ... [2022-02-20 16:34:18,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:34:18,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:34:18,445 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:837) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$49(StandardFunctionHandler.java:414) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:235) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1442) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2034) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1645) 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:1076) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1622) 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:1076) 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:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1465) 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:3271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2356) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-02-20 16:34:18,450 INFO L158 Benchmark]: Toolchain (without parser) took 247.37ms. Allocated memory is still 88.1MB. Free memory was 55.6MB in the beginning and 62.3MB in the end (delta: -6.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-20 16:34:18,450 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:34:18,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.42ms. Allocated memory is still 88.1MB. Free memory was 55.3MB in the beginning and 62.3MB in the end (delta: -7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:34:18,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory was 45.3MB in the beginning and 45.2MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.42ms. Allocated memory is still 88.1MB. Free memory was 55.3MB in the beginning and 62.3MB in the end (delta: -7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:837) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/float-newlib/double_req_bl_0876.c -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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:34:20,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:34:20,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:34:20,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:34:20,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:34:20,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:34:20,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:34:20,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:34:20,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:34:20,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:34:20,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:34:20,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:34:20,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:34:20,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:34:20,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:34:20,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:34:20,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:34:20,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:34:20,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:34:20,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:34:20,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:34:20,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:34:20,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:34:20,135 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:34:20,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:34:20,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:34:20,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:34:20,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:34:20,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:34:20,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:34:20,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:34:20,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:34:20,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:34:20,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:34:20,148 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:34:20,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:34:20,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:34:20,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:34:20,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:34:20,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:34:20,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:34:20,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 16:34:20,185 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:34:20,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:34:20,186 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:34:20,186 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:34:20,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:34:20,187 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:34:20,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:34:20,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:34:20,188 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:34:20,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:34:20,189 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:34:20,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:34:20,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:34:20,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:34:20,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:34:20,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:34:20,190 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 16:34:20,190 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 16:34:20,190 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 16:34:20,190 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:34:20,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:34:20,190 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:34:20,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:34:20,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:34:20,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:34:20,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:34:20,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:34:20,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:34:20,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:34:20,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:34:20,192 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 16:34:20,192 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 16:34:20,192 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:34:20,192 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:34:20,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:34:20,192 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 16:34:20,193 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b12ad43dcef9bdc0311576ea572488b026584491d49ef5bf04de4ece861047f6 [2022-02-20 16:34:20,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:34:20,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:34:20,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:34:20,490 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:34:20,491 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:34:20,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2022-02-20 16:34:20,536 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0e6a9727/5c0de63f33d24c468111d0f61a6d6c9c/FLAG4660cb296 [2022-02-20 16:34:20,956 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:34:20,957 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0876.c [2022-02-20 16:34:20,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0e6a9727/5c0de63f33d24c468111d0f61a6d6c9c/FLAG4660cb296 [2022-02-20 16:34:21,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0e6a9727/5c0de63f33d24c468111d0f61a6d6c9c [2022-02-20 16:34:21,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:34:21,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:34:21,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:34:21,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:34:21,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:34:21,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:34:21" (1/1) ... [2022-02-20 16:34:21,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d189485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:34:21, skipping insertion in model container [2022-02-20 16:34:21,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:34:21" (1/1) ... [2022-02-20 16:34:21,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:34:21,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:34:21,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0876.c[14628,14641] [2022-02-20 16:34:21,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:34:21,716 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:34:21,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0876.c[14628,14641] [2022-02-20 16:34:21,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:34:21,847 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:34:21,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:34:21 WrapperNode [2022-02-20 16:34:21,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:34:21,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:34:21,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:34:21,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:34:21,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:34:21" (1/1) ... [2022-02-20 16:34:21,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:34:21" (1/1) ... [2022-02-20 16:34:21,951 INFO L137 Inliner]: procedures = 26, calls = 169, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 755 [2022-02-20 16:34:21,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:34:21,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:34:21,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:34:21,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:34:21,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:34:21" (1/1) ... [2022-02-20 16:34:21,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:34:21" (1/1) ... [2022-02-20 16:34:21,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:34:21" (1/1) ... [2022-02-20 16:34:21,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:34:21" (1/1) ... [2022-02-20 16:34:22,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:34:21" (1/1) ... [2022-02-20 16:34:22,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:34:21" (1/1) ... [2022-02-20 16:34:22,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:34:21" (1/1) ... [2022-02-20 16:34:22,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:34:22,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:34:22,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:34:22,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:34:22,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:34:21" (1/1) ... [2022-02-20 16:34:22,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:34:22,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:34:22,092 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:34:22,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:34:22,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:34:22,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-02-20 16:34:22,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-02-20 16:34:22,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 16:34:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:34:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-02-20 16:34:22,126 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-02-20 16:34:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-02-20 16:34:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-02-20 16:34:22,126 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2022-02-20 16:34:22,126 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2022-02-20 16:34:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:34:22,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:34:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-02-20 16:34:22,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:34:22,250 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:34:22,252 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:35:23,999 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:35:24,008 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:35:24,011 INFO L299 CfgBuilder]: Removed 60 assume(true) statements. [2022-02-20 16:35:24,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:35:24 BoogieIcfgContainer [2022-02-20 16:35:24,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:35:24,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:35:24,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:35:24,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:35:24,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:34:21" (1/3) ... [2022-02-20 16:35:24,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b07d752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:35:24, skipping insertion in model container [2022-02-20 16:35:24,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:34:21" (2/3) ... [2022-02-20 16:35:24,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b07d752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:35:24, skipping insertion in model container [2022-02-20 16:35:24,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:35:24" (3/3) ... [2022-02-20 16:35:24,022 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0876.c [2022-02-20 16:35:24,026 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:35:24,026 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:35:24,062 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:35:24,067 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:35:24,067 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:35:24,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 213 states, 204 states have (on average 1.7009803921568627) internal successors, (347), 205 states have internal predecessors, (347), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-20 16:35:24,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-02-20 16:35:24,090 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:35:24,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:35:24,091 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:35:24,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:35:24,095 INFO L85 PathProgramCache]: Analyzing trace with hash -288078456, now seen corresponding path program 1 times [2022-02-20 16:35:24,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:35:24,104 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869028050] [2022-02-20 16:35:24,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:35:24,105 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:35:24,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:35:24,107 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 16:35:24,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 16:35:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:35:24,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 16:35:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:35:24,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:35:24,698 INFO L290 TraceCheckUtils]: 0: Hoare triple {216#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(21bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32);~two54_scalbn~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.8014398509481984E16);~twom54_scalbn~0 := ~to_fp~DOUBLE(currentRoundingMode, 5.551115123125783E-17);~huge_scalbn~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E300);~tiny_scalbn~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E-300);~one_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);~tiny_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E-300);~#bp_pow~0.base, ~#bp_pow~0.offset := 4bv32, 0bv32;call #Ultimate.allocInit(16bv32, 4bv32);call write~init~intFLOATTYPE8(~to_fp~DOUBLE(currentRoundingMode, 1.0), ~#bp_pow~0.base, ~#bp_pow~0.offset, 8bv32);call write~init~intFLOATTYPE8(~to_fp~DOUBLE(currentRoundingMode, 1.5), ~#bp_pow~0.base, ~bvadd32(8bv32, ~#bp_pow~0.offset), 8bv32);~#dp_h_pow~0.base, ~#dp_h_pow~0.offset := 5bv32, 0bv32;call #Ultimate.allocInit(16bv32, 5bv32);call write~init~intFLOATTYPE8(~Pluszero~DOUBLE(), ~#dp_h_pow~0.base, ~#dp_h_pow~0.offset, 8bv32);call write~init~intFLOATTYPE8(~to_fp~DOUBLE(currentRoundingMode, 0.5849624872207642), ~#dp_h_pow~0.base, ~bvadd32(8bv32, ~#dp_h_pow~0.offset), 8bv32);~#dp_l_pow~0.base, ~#dp_l_pow~0.offset := 6bv32, 0bv32;call #Ultimate.allocInit(16bv32, 6bv32);call write~init~intFLOATTYPE8(~Pluszero~DOUBLE(), ~#dp_l_pow~0.base, ~#dp_l_pow~0.offset, 8bv32);call write~init~intFLOATTYPE8(~to_fp~DOUBLE(currentRoundingMode, 1.350039202129749E-8), ~#dp_l_pow~0.base, ~bvadd32(8bv32, ~#dp_l_pow~0.offset), 8bv32);~zero_pow~0 := ~Pluszero~DOUBLE();~one_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);~two_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 2.0);~two53_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 9.007199254740992E15);~huge_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E300);~tiny_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E-300);~L1_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.5999999999999946);~L2_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.4285714285785502);~L3_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.33333332981837743);~L4_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.272728123808534);~L5_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.23066074577556175);~L6_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.20697501780033842);~P1_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.16666666666666602);~P2_pow~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 0.0027777777777015593));~P3_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 6.613756321437934E-5);~P4_pow~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 1.6533902205465252E-6));~P5_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 4.1381367970572385E-8);~lg2_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6931471805599453);~lg2_h_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.6931471824645996);~lg2_l_pow~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 1.904654299957768E-9));~ovt_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 8.008566259537294E-17);~cp_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.9617966939259756);~cp_h_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 0.9617967009544373);~cp_l_pow~0 := ~fp.neg~DOUBLE(~to_fp~DOUBLE(currentRoundingMode, 7.028461650952758E-9));~ivln2_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.4426950408889634);~ivln2_h_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.4426950216293335);~ivln2_l_pow~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.9259629911266175E-8); {216#true} is VALID [2022-02-20 16:35:24,698 INFO L290 TraceCheckUtils]: 1: Hoare triple {216#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet58#1, main_#t~ret59#1, main_#t~ret60#1, main_#t~ret61#1, main_#t~short62#1, main_~res~0#1, main_~x~0#1, main_~y~0#1;main_~x~0#1 := main_#t~nondet58#1;havoc main_#t~nondet58#1;main_~y~0#1 := ~fp.div~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0), ~Pluszero~DOUBLE()); {216#true} is VALID [2022-02-20 16:35:24,699 INFO L272 TraceCheckUtils]: 2: Hoare triple {216#true} call main_#t~ret59#1 := fabs_double(main_~x~0#1); {216#true} is VALID [2022-02-20 16:35:24,699 INFO L290 TraceCheckUtils]: 3: Hoare triple {216#true} ~x := #in~x;havoc ~high~0; {216#true} is VALID [2022-02-20 16:35:24,699 INFO L290 TraceCheckUtils]: 4: Hoare triple {216#true} assume !true; {216#true} is VALID [2022-02-20 16:35:24,699 INFO L290 TraceCheckUtils]: 5: Hoare triple {216#true} assume !true; {216#true} is VALID [2022-02-20 16:35:24,699 INFO L290 TraceCheckUtils]: 6: Hoare triple {216#true} #res := ~x; {216#true} is VALID [2022-02-20 16:35:24,699 INFO L290 TraceCheckUtils]: 7: Hoare triple {216#true} assume true; {216#true} is VALID [2022-02-20 16:35:24,700 INFO L284 TraceCheckUtils]: 8: Hoare quadruple {216#true} {216#true} #888#return; {216#true} is VALID [2022-02-20 16:35:24,700 INFO L290 TraceCheckUtils]: 9: Hoare triple {216#true} assume ~fp.lt~DOUBLE(main_#t~ret59#1, ~to_fp~DOUBLE(currentRoundingMode, 1.0));havoc main_#t~ret59#1;assume { :begin_inline___ieee754_pow } true;__ieee754_pow_#in~x#1, __ieee754_pow_#in~y#1 := main_~x~0#1, main_~y~0#1;havoc __ieee754_pow_#res#1;havoc __ieee754_pow_#t~mem21#1, __ieee754_pow_#t~mem22#1, __ieee754_pow_~#ew_u~2#1.base, __ieee754_pow_~#ew_u~2#1.offset, __ieee754_pow_#t~mem23#1, __ieee754_pow_#t~mem24#1, __ieee754_pow_~#ew_u~3#1.base, __ieee754_pow_~#ew_u~3#1.offset, __ieee754_pow_#t~ite25#1, __ieee754_pow_#t~ite26#1, __ieee754_pow_#t~ret27#1, __ieee754_pow_#t~ret28#1, __ieee754_pow_#t~ite29#1, __ieee754_pow_#t~ite30#1, __ieee754_pow_#t~ite31#1, __ieee754_pow_#t~ite32#1, __ieee754_pow_#t~mem33#1, __ieee754_pow_~#sl_u~0#1.base, __ieee754_pow_~#sl_u~0#1.offset, __ieee754_pow_#t~mem34#1, __ieee754_pow_~#gh_u~4#1.base, __ieee754_pow_~#gh_u~4#1.offset, __ieee754_pow_#t~mem35#1, __ieee754_pow_~#sh_u~4#1.base, __ieee754_pow_~#sh_u~4#1.offset, __ieee754_pow_#t~mem36#1, __ieee754_pow_#t~mem37#1, __ieee754_pow_#t~mem38#1, __ieee754_pow_~#sl_u~1#1.base, __ieee754_pow_~#sl_u~1#1.offset, __ieee754_pow_#t~mem39#1, __ieee754_pow_~#sh_u~5#1.base, __ieee754_pow_~#sh_u~5#1.offset, __ieee754_pow_#t~mem40#1, __ieee754_pow_#t~mem41#1, __ieee754_pow_~#sl_u~2#1.base, __ieee754_pow_~#sl_u~2#1.offset, __ieee754_pow_#t~mem42#1, __ieee754_pow_~#sl_u~3#1.base, __ieee754_pow_~#sl_u~3#1.offset, __ieee754_pow_#t~mem43#1, __ieee754_pow_#t~mem44#1, __ieee754_pow_#t~mem45#1, __ieee754_pow_~#sl_u~4#1.base, __ieee754_pow_~#sl_u~4#1.offset, __ieee754_pow_#t~mem46#1, __ieee754_pow_~s2~0#1, __ieee754_pow_~s_h~0#1, __ieee754_pow_~s_l~0#1, __ieee754_pow_~t_h~0#1, __ieee754_pow_~t_l~0#1, __ieee754_pow_#t~mem47#1, __ieee754_pow_~#sl_u~5#1.base, __ieee754_pow_~#sl_u~5#1.offset, __ieee754_pow_#t~mem48#1, __ieee754_pow_#t~mem49#1, __ieee754_pow_~#ew_u~4#1.base, __ieee754_pow_~#ew_u~4#1.offset, __ieee754_pow_#t~mem50#1, __ieee754_pow_~#sh_u~6#1.base, __ieee754_pow_~#sh_u~6#1.offset, __ieee754_pow_#t~mem51#1, __ieee754_pow_~#sl_u~6#1.base, __ieee754_pow_~#sl_u~6#1.offset, __ieee754_pow_#t~mem52#1, __ieee754_pow_~#gh_u~5#1.base, __ieee754_pow_~#gh_u~5#1.offset, __ieee754_pow_#t~ret53#1, __ieee754_pow_#t~mem54#1, __ieee754_pow_~#sh_u~7#1.base, __ieee754_pow_~#sh_u~7#1.offset, __ieee754_pow_~x#1, __ieee754_pow_~y#1, __ieee754_pow_~z~1#1, __ieee754_pow_~ax~0#1, __ieee754_pow_~z_h~0#1, __ieee754_pow_~z_l~0#1, __ieee754_pow_~p_h~0#1, __ieee754_pow_~p_l~0#1, __ieee754_pow_~y1~0#1, __ieee754_pow_~t1~1#1, __ieee754_pow_~t2~0#1, __ieee754_pow_~r~1#1, __ieee754_pow_~s~0#1, __ieee754_pow_~t~1#1, __ieee754_pow_~u~0#1, __ieee754_pow_~v~0#1, __ieee754_pow_~w~0#1, __ieee754_pow_~i~1#1, __ieee754_pow_~j~0#1, __ieee754_pow_~k~1#1, __ieee754_pow_~yisint~0#1, __ieee754_pow_~n~0#1, __ieee754_pow_~hx~2#1, __ieee754_pow_~hy~1#1, __ieee754_pow_~ix~0#1, __ieee754_pow_~iy~0#1, __ieee754_pow_~lx~1#1, __ieee754_pow_~ly~0#1;__ieee754_pow_~x#1 := __ieee754_pow_#in~x#1;__ieee754_pow_~y#1 := __ieee754_pow_#in~y#1;havoc __ieee754_pow_~z~1#1;havoc __ieee754_pow_~ax~0#1;havoc __ieee754_pow_~z_h~0#1;havoc __ieee754_pow_~z_l~0#1;havoc __ieee754_pow_~p_h~0#1;havoc __ieee754_pow_~p_l~0#1;havoc __ieee754_pow_~y1~0#1;havoc __ieee754_pow_~t1~1#1;havoc __ieee754_pow_~t2~0#1;havoc __ieee754_pow_~r~1#1;havoc __ieee754_pow_~s~0#1;havoc __ieee754_pow_~t~1#1;havoc __ieee754_pow_~u~0#1;havoc __ieee754_pow_~v~0#1;havoc __ieee754_pow_~w~0#1;havoc __ieee754_pow_~i~1#1;havoc __ieee754_pow_~j~0#1;havoc __ieee754_pow_~k~1#1;havoc __ieee754_pow_~yisint~0#1;havoc __ieee754_pow_~n~0#1;havoc __ieee754_pow_~hx~2#1;havoc __ieee754_pow_~hy~1#1;havoc __ieee754_pow_~ix~0#1;havoc __ieee754_pow_~iy~0#1;havoc __ieee754_pow_~lx~1#1;havoc __ieee754_pow_~ly~0#1; {216#true} is VALID [2022-02-20 16:35:24,700 INFO L290 TraceCheckUtils]: 10: Hoare triple {216#true} assume !true; {216#true} is VALID [2022-02-20 16:35:24,701 INFO L290 TraceCheckUtils]: 11: Hoare triple {216#true} assume !true; {217#false} is VALID [2022-02-20 16:35:24,701 INFO L290 TraceCheckUtils]: 12: Hoare triple {217#false} __ieee754_pow_~ix~0#1 := ~bvand32(2147483647bv32, __ieee754_pow_~hx~2#1);__ieee754_pow_~iy~0#1 := ~bvand32(2147483647bv32, __ieee754_pow_~hy~1#1); {217#false} is VALID [2022-02-20 16:35:24,701 INFO L290 TraceCheckUtils]: 13: Hoare triple {217#false} assume 0bv32 == ~bvor32(__ieee754_pow_~iy~0#1, __ieee754_pow_~ly~0#1);__ieee754_pow_#res#1 := ~one_pow~0; {217#false} is VALID [2022-02-20 16:35:24,702 INFO L290 TraceCheckUtils]: 14: Hoare triple {217#false} main_#t~ret60#1 := __ieee754_pow_#res#1;assume { :end_inline___ieee754_pow } true;main_~res~0#1 := main_#t~ret60#1;havoc main_#t~ret60#1;main_#t~short62#1 := ~fp.eq~DOUBLE(main_~res~0#1, ~Pluszero~DOUBLE()); {217#false} is VALID [2022-02-20 16:35:24,702 INFO L290 TraceCheckUtils]: 15: Hoare triple {217#false} assume !main_#t~short62#1; {217#false} is VALID [2022-02-20 16:35:24,702 INFO L290 TraceCheckUtils]: 16: Hoare triple {217#false} assume !main_#t~short62#1;havoc main_#t~ret61#1;havoc main_#t~short62#1; {217#false} is VALID [2022-02-20 16:35:24,702 INFO L290 TraceCheckUtils]: 17: Hoare triple {217#false} assume !false; {217#false} is VALID [2022-02-20 16:35:24,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:35:24,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:35:24,707 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:35:24,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869028050] [2022-02-20 16:35:24,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869028050] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:35:24,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:35:24,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:35:24,709 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834837375] [2022-02-20 16:35:24,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:35:24,713 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-02-20 16:35:24,716 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:35:24,726 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-20 16:35:24,764 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:35:24,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:35:24,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:35:24,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:35:24,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:35:24,787 INFO L87 Difference]: Start difference. First operand has 213 states, 204 states have (on average 1.7009803921568627) internal successors, (347), 205 states have internal predecessors, (347), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)