./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 3a877d22 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 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:28:34,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:28:34,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:28:35,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:28:35,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:28:35,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:28:35,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:28:35,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:28:35,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:28:35,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:28:35,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:28:35,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:28:35,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:28:35,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:28:35,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:28:35,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:28:35,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:28:35,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:28:35,053 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:28:35,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:28:35,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:28:35,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:28:35,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:28:35,062 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:28:35,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:28:35,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:28:35,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:28:35,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:28:35,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:28:35,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:28:35,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:28:35,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:28:35,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:28:35,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:28:35,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:28:35,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:28:35,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:28:35,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:28:35,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:28:35,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:28:35,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:28:35,079 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:28:35,111 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:28:35,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:28:35,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:28:35,112 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:28:35,113 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:28:35,113 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:28:35,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:28:35,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:28:35,114 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:28:35,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:28:35,115 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:28:35,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:28:35,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:28:35,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:28:35,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:28:35,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:28:35,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:28:35,116 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:28:35,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:28:35,117 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:28:35,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:28:35,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:28:35,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:28:35,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:28:35,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:28:35,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:28:35,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:28:35,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:28:35,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:28:35,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:28:35,119 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:28:35,120 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:28:35,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:28:35,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:28:35,120 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 082839b113e645749e4f971b7de0b7472e2f288decd6e09a4d0069d4314902d8 [2021-12-15 10:28:35,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:28:35,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:28:35,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:28:35,323 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:28:35,323 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:28:35,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-12-15 10:28:35,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9da9de328/13006b78ae90490dbc4c7edc9b388cff/FLAG44dfee6a8 [2021-12-15 10:28:35,810 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:28:35,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-12-15 10:28:35,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9da9de328/13006b78ae90490dbc4c7edc9b388cff/FLAG44dfee6a8 [2021-12-15 10:28:35,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9da9de328/13006b78ae90490dbc4c7edc9b388cff [2021-12-15 10:28:35,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:28:35,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:28:35,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:28:35,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:28:35,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:28:35,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:28:35" (1/1) ... [2021-12-15 10:28:35,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e7f66eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:28:35, skipping insertion in model container [2021-12-15 10:28:35,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:28:35" (1/1) ... [2021-12-15 10:28:35,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:28:35,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:28:36,261 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] [2021-12-15 10:28:36,271 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) [2021-12-15 10:28:36,281 INFO L158 Benchmark]: Toolchain (without parser) took 432.37ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 57.1MB in the beginning and 96.7MB in the end (delta: -39.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 10:28:36,282 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 92.3MB. Free memory was 47.3MB in the beginning and 47.3MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:28:36,284 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.22ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 56.9MB in the beginning and 96.7MB in the end (delta: -39.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 10:28:36,286 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 92.3MB. Free memory was 47.3MB in the beginning and 47.3MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.22ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 56.9MB in the beginning and 96.7MB in the end (delta: -39.8MB). Peak memory consumption was 10.5MB. 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 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:28:37,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:28:37,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:28:38,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:28:38,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:28:38,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:28:38,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:28:38,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:28:38,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:28:38,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:28:38,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:28:38,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:28:38,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:28:38,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:28:38,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:28:38,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:28:38,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:28:38,019 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:28:38,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:28:38,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:28:38,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:28:38,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:28:38,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:28:38,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:28:38,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:28:38,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:28:38,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:28:38,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:28:38,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:28:38,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:28:38,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:28:38,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:28:38,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:28:38,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:28:38,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:28:38,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:28:38,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:28:38,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:28:38,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:28:38,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:28:38,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:28:38,057 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:28:38,088 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:28:38,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:28:38,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:28:38,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:28:38,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:28:38,090 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:28:38,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:28:38,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:28:38,092 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:28:38,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:28:38,093 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:28:38,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:28:38,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:28:38,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:28:38,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:28:38,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:28:38,095 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:28:38,095 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:28:38,095 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:28:38,095 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:28:38,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:28:38,096 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:28:38,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:28:38,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:28:38,096 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:28:38,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:28:38,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:28:38,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:28:38,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:28:38,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:28:38,098 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:28:38,098 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:28:38,098 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:28:38,099 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:28:38,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:28:38,099 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:28:38,099 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:28:38,100 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 082839b113e645749e4f971b7de0b7472e2f288decd6e09a4d0069d4314902d8 [2021-12-15 10:28:38,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:28:38,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:28:38,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:28:38,473 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:28:38,474 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:28:38,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-12-15 10:28:38,537 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5586d60cf/5515bc8090cf47d0bb2d11ec08f3b4f5/FLAG16bbe4e44 [2021-12-15 10:28:39,045 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:28:39,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/fdim.i [2021-12-15 10:28:39,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5586d60cf/5515bc8090cf47d0bb2d11ec08f3b4f5/FLAG16bbe4e44 [2021-12-15 10:28:39,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5586d60cf/5515bc8090cf47d0bb2d11ec08f3b4f5 [2021-12-15 10:28:39,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:28:39,523 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:28:39,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:28:39,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:28:39,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:28:39,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:28:39" (1/1) ... [2021-12-15 10:28:39,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52cc160a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:28:39, skipping insertion in model container [2021-12-15 10:28:39,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:28:39" (1/1) ... [2021-12-15 10:28:39,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:28:39,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:28:39,905 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] [2021-12-15 10:28:39,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:28:39,924 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:28:39,942 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] [2021-12-15 10:28:39,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:28:40,048 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:28:40,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:28:40 WrapperNode [2021-12-15 10:28:40,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:28:40,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:28:40,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:28:40,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:28:40,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:28:40" (1/1) ... [2021-12-15 10:28:40,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:28:40" (1/1) ... [2021-12-15 10:28:40,093 INFO L137 Inliner]: procedures = 448, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2021-12-15 10:28:40,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:28:40,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:28:40,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:28:40,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:28:40,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:28:40" (1/1) ... [2021-12-15 10:28:40,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:28:40" (1/1) ... [2021-12-15 10:28:40,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:28:40" (1/1) ... [2021-12-15 10:28:40,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:28:40" (1/1) ... [2021-12-15 10:28:40,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:28:40" (1/1) ... [2021-12-15 10:28:40,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:28:40" (1/1) ... [2021-12-15 10:28:40,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:28:40" (1/1) ... [2021-12-15 10:28:40,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:28:40,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:28:40,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:28:40,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:28:40,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:28:40" (1/1) ... [2021-12-15 10:28:40,150 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:28:40,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:28:40,180 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) [2021-12-15 10:28:40,195 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 [2021-12-15 10:28:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:28:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 10:28:40,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 10:28:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:28:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:28:40,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:28:40,275 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:28:40,276 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:28:40,370 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:28:40,375 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:28:40,376 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 10:28:40,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:28:40 BoogieIcfgContainer [2021-12-15 10:28:40,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:28:40,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:28:40,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:28:40,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:28:40,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:28:39" (1/3) ... [2021-12-15 10:28:40,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e56fb09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:28:40, skipping insertion in model container [2021-12-15 10:28:40,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:28:40" (2/3) ... [2021-12-15 10:28:40,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e56fb09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:28:40, skipping insertion in model container [2021-12-15 10:28:40,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:28:40" (3/3) ... [2021-12-15 10:28:40,384 INFO L111 eAbstractionObserver]: Analyzing ICFG fdim.i [2021-12-15 10:28:40,388 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:28:40,389 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:28:40,425 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:28:40,431 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 [2021-12-15 10:28:40,431 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:28:40,443 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) [2021-12-15 10:28:40,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-15 10:28:40,447 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:28:40,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-15 10:28:40,448 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:28:40,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:28:40,452 INFO L85 PathProgramCache]: Analyzing trace with hash 890017146, now seen corresponding path program 1 times [2021-12-15 10:28:40,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:28:40,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001596798] [2021-12-15 10:28:40,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:28:40,463 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:28:40,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:28:40,471 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) [2021-12-15 10:28:40,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 10:28:40,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 10:28:40,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:28:40,732 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2021-12-15 10:28:40,736 INFO L158 Benchmark]: Toolchain (without parser) took 1211.24ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 36.2MB in the beginning and 42.2MB in the end (delta: -6.0MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2021-12-15 10:28:40,736 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 58.7MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:28:40,737 INFO L158 Benchmark]: CACSL2BoogieTranslator took 524.62ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 36.0MB in the beginning and 41.3MB in the end (delta: -5.3MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2021-12-15 10:28:40,738 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.42ms. Allocated memory is still 77.6MB. Free memory was 41.3MB in the beginning and 38.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:28:40,738 INFO L158 Benchmark]: Boogie Preprocessor took 47.74ms. Allocated memory is still 77.6MB. Free memory was 38.7MB in the beginning and 59.8MB in the end (delta: -21.1MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2021-12-15 10:28:40,739 INFO L158 Benchmark]: RCFGBuilder took 235.17ms. Allocated memory is still 77.6MB. Free memory was 59.8MB in the beginning and 50.8MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 10:28:40,739 INFO L158 Benchmark]: TraceAbstraction took 354.65ms. Allocated memory is still 77.6MB. Free memory was 50.8MB in the beginning and 42.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 10:28:40,742 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 58.7MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 524.62ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 36.0MB in the beginning and 41.3MB in the end (delta: -5.3MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.42ms. Allocated memory is still 77.6MB. Free memory was 41.3MB in the beginning and 38.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.74ms. Allocated memory is still 77.6MB. Free memory was 38.7MB in the beginning and 59.8MB in the end (delta: -21.1MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. * RCFGBuilder took 235.17ms. Allocated memory is still 77.6MB. Free memory was 59.8MB in the beginning and 50.8MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 354.65ms. Allocated memory is still 77.6MB. Free memory was 50.8MB in the beginning and 42.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 10:28:40,770 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: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable