./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-esbmc-regression/fdim.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/floats-esbmc-regression/fdim.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 082839b113e645749e4f971b7de0b7472e2f288decd6e09a4d0069d4314902d8 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:18:07,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:18:07,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:18:07,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:18:07,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:18:07,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:18:07,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:18:07,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:18:07,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:18:07,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:18:07,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:18:07,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:18:07,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:18:07,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:18:07,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:18:07,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:18:07,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:18:07,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:18:07,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:18:07,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:18:07,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:18:07,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:18:07,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:18:07,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:18:07,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:18:07,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:18:07,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:18:07,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:18:07,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:18:07,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:18:07,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:18:07,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:18:07,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:18:07,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:18:07,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:18:07,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:18:07,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:18:07,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:18:07,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:18:07,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:18:07,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:18:07,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 07:18:07,722 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:18:07,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:18:07,724 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:18:07,724 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:18:07,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:18:07,725 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:18:07,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:18:07,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:18:07,725 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:18:07,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:18:07,726 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:18:07,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 07:18:07,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:18:07,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:18:07,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:18:07,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:18:07,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:18:07,727 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:18:07,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:18:07,728 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:18:07,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:18:07,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:18:07,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:18:07,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:18:07,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:18:07,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:18:07,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:18:07,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:18:07,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 07:18:07,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 07:18:07,730 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:18:07,731 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:18:07,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:18:07,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:18:07,731 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 082839b113e645749e4f971b7de0b7472e2f288decd6e09a4d0069d4314902d8 [2021-12-17 07:18:07,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:18:07,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:18:07,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:18:07,980 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:18:07,980 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:18:07,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-12-17 07:18:08,024 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7a382c8f/85ccbbab73da4846b50f0ed7e521a7ff/FLAG42f7b305b [2021-12-17 07:18:08,411 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:18:08,411 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-12-17 07:18:08,426 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7a382c8f/85ccbbab73da4846b50f0ed7e521a7ff/FLAG42f7b305b [2021-12-17 07:18:08,796 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7a382c8f/85ccbbab73da4846b50f0ed7e521a7ff [2021-12-17 07:18:08,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:18:08,800 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:18:08,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:18:08,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:18:08,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:18:08,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:18:08" (1/1) ... [2021-12-17 07:18:08,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2507fb5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:18:08, skipping insertion in model container [2021-12-17 07:18:08,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:18:08" (1/1) ... [2021-12-17 07:18:08,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:18:08,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:18:09,244 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/floats-esbmc-regression/fdim.i[36279,36292] [2021-12-17 07:18:09,250 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: fdim at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:853) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleBinaryFloatFunction(StandardFunctionHandler.java:1800) 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:1434) 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:729) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:674) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:508) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1441) 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:1385) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1069) 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:1456) 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:3268) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2342) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:595) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-17 07:18:09,258 INFO L158 Benchmark]: Toolchain (without parser) took 457.01ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 64.4MB in the beginning and 105.0MB in the end (delta: -40.6MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2021-12-17 07:18:09,259 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 94.4MB. Free memory was 52.3MB in the beginning and 52.2MB in the end (delta: 86.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 07:18:09,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.84ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 64.0MB in the beginning and 105.0MB in the end (delta: -41.0MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2021-12-17 07:18:09,262 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 94.4MB. Free memory was 52.3MB in the beginning and 52.2MB in the end (delta: 86.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.84ms. Allocated memory was 94.4MB in the beginning and 130.0MB in the end (delta: 35.7MB). Free memory was 64.0MB in the beginning and 105.0MB in the end (delta: -41.0MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fdim de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fdim: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:853) 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 -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/floats-esbmc-regression/fdim.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 082839b113e645749e4f971b7de0b7472e2f288decd6e09a4d0069d4314902d8 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 07:18:10,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 07:18:10,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 07:18:10,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 07:18:10,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 07:18:10,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 07:18:10,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 07:18:10,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 07:18:10,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 07:18:10,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 07:18:10,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 07:18:10,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 07:18:10,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 07:18:10,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 07:18:10,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 07:18:10,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 07:18:10,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 07:18:10,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 07:18:10,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 07:18:10,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 07:18:10,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 07:18:10,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 07:18:10,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 07:18:10,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 07:18:10,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 07:18:10,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 07:18:10,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 07:18:10,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 07:18:10,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 07:18:10,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 07:18:10,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 07:18:10,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 07:18:10,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 07:18:10,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 07:18:10,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 07:18:10,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 07:18:10,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 07:18:10,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 07:18:10,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 07:18:10,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 07:18:10,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 07:18:10,780 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-17 07:18:10,809 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 07:18:10,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 07:18:10,810 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 07:18:10,810 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 07:18:10,811 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 07:18:10,811 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 07:18:10,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 07:18:10,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 07:18:10,813 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 07:18:10,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 07:18:10,813 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 07:18:10,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 07:18:10,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 07:18:10,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 07:18:10,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 07:18:10,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 07:18:10,814 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-17 07:18:10,815 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-17 07:18:10,815 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-17 07:18:10,815 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 07:18:10,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 07:18:10,815 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 07:18:10,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 07:18:10,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 07:18:10,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 07:18:10,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 07:18:10,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:18:10,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 07:18:10,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 07:18:10,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 07:18:10,817 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-17 07:18:10,817 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-17 07:18:10,817 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 07:18:10,817 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 07:18:10,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 07:18:10,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 07:18:10,818 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-17 07:18:10,818 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 082839b113e645749e4f971b7de0b7472e2f288decd6e09a4d0069d4314902d8 [2021-12-17 07:18:11,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 07:18:11,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 07:18:11,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 07:18:11,101 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 07:18:11,102 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 07:18:11,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-12-17 07:18:11,145 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40b80dfd8/20056dd5b91b4be09f490c68cd46395b/FLAGa15c0b2d0 [2021-12-17 07:18:11,530 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 07:18:11,531 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-12-17 07:18:11,541 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40b80dfd8/20056dd5b91b4be09f490c68cd46395b/FLAGa15c0b2d0 [2021-12-17 07:18:11,905 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40b80dfd8/20056dd5b91b4be09f490c68cd46395b [2021-12-17 07:18:11,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 07:18:11,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 07:18:11,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 07:18:11,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 07:18:11,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 07:18:11,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:18:11" (1/1) ... [2021-12-17 07:18:11,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c6e6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:18:11, skipping insertion in model container [2021-12-17 07:18:11,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 07:18:11" (1/1) ... [2021-12-17 07:18:11,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 07:18:11,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 07:18:12,356 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/floats-esbmc-regression/fdim.i[36279,36292] [2021-12-17 07:18:12,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:18:12,378 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 07:18:12,407 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/floats-esbmc-regression/fdim.i[36279,36292] [2021-12-17 07:18:12,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 07:18:12,501 INFO L208 MainTranslator]: Completed translation [2021-12-17 07:18:12,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:18:12 WrapperNode [2021-12-17 07:18:12,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 07:18:12,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 07:18:12,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 07:18:12,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 07:18:12,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:18:12" (1/1) ... [2021-12-17 07:18:12,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:18:12" (1/1) ... [2021-12-17 07:18:12,560 INFO L137 Inliner]: procedures = 448, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2021-12-17 07:18:12,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 07:18:12,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 07:18:12,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 07:18:12,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 07:18:12,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:18:12" (1/1) ... [2021-12-17 07:18:12,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:18:12" (1/1) ... [2021-12-17 07:18:12,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:18:12" (1/1) ... [2021-12-17 07:18:12,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:18:12" (1/1) ... [2021-12-17 07:18:12,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:18:12" (1/1) ... [2021-12-17 07:18:12,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:18:12" (1/1) ... [2021-12-17 07:18:12,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:18:12" (1/1) ... [2021-12-17 07:18:12,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 07:18:12,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 07:18:12,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 07:18:12,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 07:18:12,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:18:12" (1/1) ... [2021-12-17 07:18:12,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 07:18:12,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 07:18:12,632 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) [2021-12-17 07:18:12,640 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 [2021-12-17 07:18:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-17 07:18:12,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-17 07:18:12,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-17 07:18:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 07:18:12,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 07:18:12,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 07:18:12,722 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 07:18:12,723 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 07:18:12,781 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 07:18:12,786 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 07:18:12,786 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-17 07:18:12,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:18:12 BoogieIcfgContainer [2021-12-17 07:18:12,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 07:18:12,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 07:18:12,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 07:18:12,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 07:18:12,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 07:18:11" (1/3) ... [2021-12-17 07:18:12,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb17196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:18:12, skipping insertion in model container [2021-12-17 07:18:12,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 07:18:12" (2/3) ... [2021-12-17 07:18:12,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb17196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 07:18:12, skipping insertion in model container [2021-12-17 07:18:12,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:18:12" (3/3) ... [2021-12-17 07:18:12,792 INFO L111 eAbstractionObserver]: Analyzing ICFG fdim.i [2021-12-17 07:18:12,795 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 07:18:12,796 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 07:18:12,832 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 07:18:12,836 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 [2021-12-17 07:18:12,837 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 07:18:12,846 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-17 07:18:12,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-17 07:18:12,849 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:18:12,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-17 07:18:12,850 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:18:12,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:18:12,853 INFO L85 PathProgramCache]: Analyzing trace with hash 890017146, now seen corresponding path program 1 times [2021-12-17 07:18:12,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:18:12,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004225508] [2021-12-17 07:18:12,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:18:12,861 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:18:12,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:18:12,864 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) [2021-12-17 07:18:12,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-17 07:18:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:18:12,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 07:18:12,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:18:13,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 07:18:13,420 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 07:18:13,420 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:18:13,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004225508] [2021-12-17 07:18:13,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004225508] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 07:18:13,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 07:18:13,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 07:18:13,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014915893] [2021-12-17 07:18:13,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:18:13,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 07:18:13,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:18:13,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 07:18:13,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-17 07:18:13,448 INFO L87 Difference]: Start difference. First operand has 16 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:18:13,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:18:13,560 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2021-12-17 07:18:13,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 07:18:13,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-17 07:18:13,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:18:13,567 INFO L225 Difference]: With dead ends: 33 [2021-12-17 07:18:13,567 INFO L226 Difference]: Without dead ends: 15 [2021-12-17 07:18:13,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-17 07:18:13,571 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 5 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-17 07:18:13,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 34 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-17 07:18:13,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-12-17 07:18:13,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-12-17 07:18:13,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-17 07:18:13,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-12-17 07:18:13,594 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6 [2021-12-17 07:18:13,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:18:13,594 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-12-17 07:18:13,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:18:13,594 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-12-17 07:18:13,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-17 07:18:13,596 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 07:18:13,596 INFO L514 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 07:18:13,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-17 07:18:13,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:18:13,802 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 07:18:13,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 07:18:13,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1774914298, now seen corresponding path program 1 times [2021-12-17 07:18:13,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-17 07:18:13,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775314318] [2021-12-17 07:18:13,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 07:18:13,804 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-17 07:18:13,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-17 07:18:13,805 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-17 07:18:13,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-17 07:18:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 07:18:13,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-17 07:18:13,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 07:18:14,183 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 07:18:14,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 07:18:15,242 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-17 07:18:15,242 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-17 07:18:15,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775314318] [2021-12-17 07:18:15,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775314318] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-17 07:18:15,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 07:18:15,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2021-12-17 07:18:15,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375391898] [2021-12-17 07:18:15,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 07:18:15,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 07:18:15,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-17 07:18:15,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 07:18:15,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-17 07:18:15,244 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-17 07:18:16,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 07:18:16,328 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-12-17 07:18:16,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-17 07:18:16,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2021-12-17 07:18:16,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 07:18:16,333 INFO L225 Difference]: With dead ends: 15 [2021-12-17 07:18:16,333 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 07:18:16,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-17 07:18:16,335 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 13 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 07:18:16,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 17 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 07:18:16,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 07:18:16,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 07:18:16,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 07:18:16,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 07:18:16,336 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2021-12-17 07:18:16,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 07:18:16,336 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 07:18:16,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-17 07:18:16,336 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 07:18:16,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 07:18:16,338 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 07:18:16,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-17 07:18:16,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-17 07:18:16,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 07:18:17,086 INFO L854 garLoopResultBuilder]: At program point L882-1(line 882) the Hoare annotation is: (fp.eq (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0))) (fp.sub currentRoundingMode .cse0 (fp.neg .cse0))) (_ +oo 11 53)) [2021-12-17 07:18:17,086 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 07:18:17,086 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 07:18:17,086 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 07:18:17,086 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 07:18:17,086 INFO L858 garLoopResultBuilder]: For program point L887(lines 880 888) no Hoare annotation was computed. [2021-12-17 07:18:17,086 INFO L854 garLoopResultBuilder]: At program point L885(line 885) the Hoare annotation is: (fp.eq (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0))) (fp.sub currentRoundingMode .cse0 (fp.neg .cse0))) (_ +oo 11 53)) [2021-12-17 07:18:17,087 INFO L854 garLoopResultBuilder]: At program point L884(line 884) the Hoare annotation is: (fp.eq (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0))) (fp.sub currentRoundingMode .cse0 (fp.neg .cse0))) (_ +oo 11 53)) [2021-12-17 07:18:17,087 INFO L854 garLoopResultBuilder]: At program point L883(line 883) the Hoare annotation is: (fp.eq (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0))) (fp.sub currentRoundingMode .cse0 (fp.neg .cse0))) (_ +oo 11 53)) [2021-12-17 07:18:17,087 INFO L854 garLoopResultBuilder]: At program point L882(line 882) the Hoare annotation is: (fp.eq (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0))) (fp.sub currentRoundingMode .cse0 (fp.neg .cse0))) (_ +oo 11 53)) [2021-12-17 07:18:17,087 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(line 878) the Hoare annotation is: true [2021-12-17 07:18:17,087 INFO L858 garLoopResultBuilder]: For program point L878(line 878) no Hoare annotation was computed. [2021-12-17 07:18:17,087 INFO L858 garLoopResultBuilder]: For program point L878-1(line 878) no Hoare annotation was computed. [2021-12-17 07:18:17,087 INFO L858 garLoopResultBuilder]: For program point L878-3(line 878) no Hoare annotation was computed. [2021-12-17 07:18:17,087 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(line 878) no Hoare annotation was computed. [2021-12-17 07:18:17,087 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 878) no Hoare annotation was computed. [2021-12-17 07:18:17,089 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-17 07:18:17,090 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 07:18:17,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 07:18:17 BoogieIcfgContainer [2021-12-17 07:18:17,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 07:18:17,093 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 07:18:17,094 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 07:18:17,094 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 07:18:17,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 07:18:12" (3/4) ... [2021-12-17 07:18:17,096 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 07:18:17,099 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-12-17 07:18:17,101 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-12-17 07:18:17,101 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-12-17 07:18:17,102 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-17 07:18:17,102 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 07:18:17,102 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 07:18:17,121 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 07:18:17,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 07:18:17,124 INFO L158 Benchmark]: Toolchain (without parser) took 5215.25ms. Allocated memory was 52.4MB in the beginning and 92.3MB in the end (delta: 39.8MB). Free memory was 28.7MB in the beginning and 43.2MB in the end (delta: -14.5MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2021-12-17 07:18:17,124 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory is still 34.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 07:18:17,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 582.47ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 28.5MB in the beginning and 29.0MB in the end (delta: -452.3kB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2021-12-17 07:18:17,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.31ms. Allocated memory is still 62.9MB. Free memory was 29.0MB in the beginning and 44.7MB in the end (delta: -15.7MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2021-12-17 07:18:17,125 INFO L158 Benchmark]: Boogie Preprocessor took 36.47ms. Allocated memory is still 62.9MB. Free memory was 44.7MB in the beginning and 43.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 07:18:17,126 INFO L158 Benchmark]: RCFGBuilder took 189.13ms. Allocated memory is still 62.9MB. Free memory was 43.2MB in the beginning and 34.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-17 07:18:17,126 INFO L158 Benchmark]: TraceAbstraction took 4304.37ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 34.2MB in the beginning and 45.3MB in the end (delta: -11.1MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2021-12-17 07:18:17,126 INFO L158 Benchmark]: Witness Printer took 29.91ms. Allocated memory is still 92.3MB. Free memory was 45.3MB in the beginning and 43.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-17 07:18:17,129 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory is still 34.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 582.47ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 28.5MB in the beginning and 29.0MB in the end (delta: -452.3kB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.31ms. Allocated memory is still 62.9MB. Free memory was 29.0MB in the beginning and 44.7MB in the end (delta: -15.7MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.47ms. Allocated memory is still 62.9MB. Free memory was 44.7MB in the beginning and 43.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 189.13ms. Allocated memory is still 62.9MB. Free memory was 43.2MB in the beginning and 34.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4304.37ms. Allocated memory was 62.9MB in the beginning and 92.3MB in the end (delta: 29.4MB). Free memory was 34.2MB in the beginning and 45.3MB in the end (delta: -11.1MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Witness Printer took 29.91ms. Allocated memory is still 92.3MB. Free memory was 45.3MB in the beginning and 43.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 878]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 2, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 21 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 6 LocationsWithAnnotation, 14 PreInvPairs, 18 NumberOfFragments, 56 HoareAnnotationTreeSize, 14 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 67 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 173 SizeOfPredicates, 4 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 56/64 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-12-17 07:18:17,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE