./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float19.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float19.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 fb866a5cacd669e678f08014c34cb9831bc85cc9 ........................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float19.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 fb866a5cacd669e678f08014c34cb9831bc85cc9 ................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:16:08,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:16:08,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:16:08,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:16:08,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:16:08,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:16:08,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:16:08,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:16:08,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:16:08,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:16:08,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:16:08,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:16:08,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:16:08,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:16:08,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:16:08,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:16:08,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:16:08,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:16:08,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:16:08,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:16:08,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:16:08,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:16:08,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:16:08,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:16:08,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:16:08,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:16:08,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:16:08,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:16:08,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:16:08,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:16:08,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:16:08,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:16:08,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:16:08,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:16:08,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:16:08,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:16:08,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:16:08,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:16:08,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:16:08,566 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:16:08,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:16:08,568 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 14:16:08,635 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:16:08,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:16:08,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:16:08,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:16:08,641 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:16:08,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:16:08,642 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:16:08,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:16:08,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:16:08,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:16:08,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:16:08,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:16:08,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:16:08,646 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:16:08,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:16:08,647 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:16:08,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:16:08,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:16:08,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:16:08,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:16:08,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:16:08,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:16:08,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:16:08,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:16:08,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:16:08,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:16:08,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:16:08,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:16:08,652 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:16:08,653 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb866a5cacd669e678f08014c34cb9831bc85cc9 [2020-10-24 14:16:09,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:16:09,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:16:09,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:16:09,112 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:16:09,116 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:16:09,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float19.i [2020-10-24 14:16:09,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/118346d7f/65fdabb08d134e699af2e08c155e3558/FLAGa86b67220 [2020-10-24 14:16:10,008 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:16:10,009 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float19.i [2020-10-24 14:16:10,023 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/118346d7f/65fdabb08d134e699af2e08c155e3558/FLAGa86b67220 [2020-10-24 14:16:10,255 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/118346d7f/65fdabb08d134e699af2e08c155e3558 [2020-10-24 14:16:10,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:16:10,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:16:10,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:10,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:16:10,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:16:10,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:10" (1/1) ... [2020-10-24 14:16:10,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ddf4cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:10, skipping insertion in model container [2020-10-24 14:16:10,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:10" (1/1) ... [2020-10-24 14:16:10,288 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:16:10,332 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:16:11,122 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: isinf at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:847) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1690) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1400) 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:1079) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2341) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2341) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2341) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1568) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1044) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1576) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1044) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1422) 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:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2291) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:578) 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:201) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) 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) [2020-10-24 14:16:11,135 INFO L168 Benchmark]: Toolchain (without parser) took 870.92 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.6 MB in the beginning and 27.4 MB in the end (delta: -5.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:11,137 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 37.7 MB. Free memory was 22.6 MB in the beginning and 22.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:16:11,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 862.16 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.0 MB in the beginning and 27.4 MB in the end (delta: -6.4 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:11,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 37.7 MB. Free memory was 22.6 MB in the beginning and 22.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 862.16 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.0 MB in the beginning and 27.4 MB in the end (delta: -6.4 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isinf de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isinf: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:847) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:16:13,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:16:13,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:16:13,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:16:13,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:16:13,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:16:13,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:16:13,830 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:16:13,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:16:13,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:16:13,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:16:13,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:16:13,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:16:13,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:16:13,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:16:13,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:16:13,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:16:13,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:16:13,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:16:13,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:16:13,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:16:13,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:16:13,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:16:13,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:16:13,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:16:13,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:16:13,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:16:13,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:16:13,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:16:13,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:16:13,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:16:13,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:16:13,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:16:13,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:16:13,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:16:13,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:16:13,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:16:13,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:16:13,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:16:13,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:16:13,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:16:13,878 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 14:16:13,916 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:16:13,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:16:13,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:16:13,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:16:13,919 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:16:13,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:16:13,919 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:16:13,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:16:13,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:16:13,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:16:13,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:16:13,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:16:13,921 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:16:13,921 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:16:13,922 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:16:13,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:16:13,922 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:16:13,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:16:13,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:16:13,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:16:13,924 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:16:13,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:16:13,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:16:13,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:16:13,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:16:13,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:16:13,925 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:16:13,926 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:16:13,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:16:13,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:16:13,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:16:13,927 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb866a5cacd669e678f08014c34cb9831bc85cc9 [2020-10-24 14:16:14,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:16:14,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:16:14,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:16:14,412 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:16:14,413 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:16:14,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float19.i [2020-10-24 14:16:14,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/47fbf3fdd/de9a3d9311644ad4bd815153730be46e/FLAGd70f5a48d [2020-10-24 14:16:15,345 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:16:15,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float19.i [2020-10-24 14:16:15,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/47fbf3fdd/de9a3d9311644ad4bd815153730be46e/FLAGd70f5a48d [2020-10-24 14:16:15,582 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/47fbf3fdd/de9a3d9311644ad4bd815153730be46e [2020-10-24 14:16:15,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:16:15,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:16:15,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:15,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:16:15,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:16:15,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:15" (1/1) ... [2020-10-24 14:16:15,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5df06e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:15, skipping insertion in model container [2020-10-24 14:16:15,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:15" (1/1) ... [2020-10-24 14:16:15,614 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:16:15,662 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:16:16,222 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:16:16,242 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:16:16,280 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:16:16,673 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:16:16,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:16 WrapperNode [2020-10-24 14:16:16,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:16,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:16:16,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:16:16,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:16:16,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:16" (1/1) ... [2020-10-24 14:16:16,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:16" (1/1) ... [2020-10-24 14:16:16,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:16:16,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:16:16,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:16:16,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:16:16,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:16" (1/1) ... [2020-10-24 14:16:16,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:16" (1/1) ... [2020-10-24 14:16:16,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:16" (1/1) ... [2020-10-24 14:16:16,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:16" (1/1) ... [2020-10-24 14:16:16,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:16" (1/1) ... [2020-10-24 14:16:16,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:16" (1/1) ... [2020-10-24 14:16:16,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:16" (1/1) ... [2020-10-24 14:16:16,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:16:16,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:16:16,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:16:16,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:16:16,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:16:16,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 14:16:16,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:16:16,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:16:16,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:16:16,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:16:17,515 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:16:17,515 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-24 14:16:17,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:17 BoogieIcfgContainer [2020-10-24 14:16:17,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:16:17,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:16:17,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:16:17,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:16:17,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:16:15" (1/3) ... [2020-10-24 14:16:17,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13770542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:17, skipping insertion in model container [2020-10-24 14:16:17,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:16" (2/3) ... [2020-10-24 14:16:17,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13770542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:17, skipping insertion in model container [2020-10-24 14:16:17,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:17" (3/3) ... [2020-10-24 14:16:17,532 INFO L111 eAbstractionObserver]: Analyzing ICFG float19.i [2020-10-24 14:16:17,554 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:16:17,560 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:16:17,577 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:16:17,627 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:16:17,627 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:16:17,627 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:16:17,627 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:16:17,628 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:16:17,628 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:16:17,628 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:16:17,628 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:16:17,648 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-10-24 14:16:17,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-24 14:16:17,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:17,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-24 14:16:17,659 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:17,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:17,667 INFO L82 PathProgramCache]: Analyzing trace with hash 889507783, now seen corresponding path program 1 times [2020-10-24 14:16:17,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:17,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1692343198] [2020-10-24 14:16:17,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 14:16:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:17,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 14:16:17,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:18,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:18,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:20,998 WARN L193 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-10-24 14:16:21,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:16:21,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1692343198] [2020-10-24 14:16:21,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:21,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 14:16:21,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535726522] [2020-10-24 14:16:21,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:16:21,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:21,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:16:21,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:16:21,171 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 6 states. [2020-10-24 14:16:21,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:21,898 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-10-24 14:16:21,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:16:21,908 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2020-10-24 14:16:21,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:21,916 INFO L225 Difference]: With dead ends: 20 [2020-10-24 14:16:21,917 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 14:16:21,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:16:21,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 14:16:21,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 14:16:21,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 14:16:21,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 14:16:21,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-10-24 14:16:21,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:21,952 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 14:16:21,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:16:21,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 14:16:21,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 14:16:22,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:16:22,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 14:16:22,208 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 14:16:22,208 INFO L274 CegarLoopResult]: For program point L967(lines 967 969) no Hoare annotation was computed. [2020-10-24 14:16:22,208 INFO L274 CegarLoopResult]: For program point L965(lines 965 970) no Hoare annotation was computed. [2020-10-24 14:16:22,208 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 14:16:22,209 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 14:16:22,209 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 14:16:22,209 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-10-24 14:16:22,209 INFO L277 CegarLoopResult]: At program point L982(lines 974 983) the Hoare annotation is: true [2020-10-24 14:16:22,209 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-10-24 14:16:22,209 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-10-24 14:16:22,209 INFO L274 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-10-24 14:16:22,210 INFO L274 CegarLoopResult]: For program point L968(line 968) no Hoare annotation was computed. [2020-10-24 14:16:22,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:16:22 BoogieIcfgContainer [2020-10-24 14:16:22,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:16:22,220 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:16:22,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:16:22,221 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:16:22,222 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:17" (3/4) ... [2020-10-24 14:16:22,225 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 14:16:22,237 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-24 14:16:22,238 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 14:16:22,238 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:16:22,238 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:16:22,282 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 14:16:22,283 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:16:22,285 INFO L168 Benchmark]: Toolchain (without parser) took 6696.90 ms. Allocated memory was 37.7 MB in the beginning and 56.6 MB in the end (delta: 18.9 MB). Free memory was 21.7 MB in the beginning and 21.1 MB in the end (delta: 628.0 kB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:22,286 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 37.7 MB. Free memory was 22.2 MB in the beginning and 22.1 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:16:22,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1080.12 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.0 MB in the beginning and 25.5 MB in the end (delta: -4.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:22,288 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.19 ms. Allocated memory is still 46.1 MB. Free memory was 25.5 MB in the beginning and 23.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:22,289 INFO L168 Benchmark]: Boogie Preprocessor took 29.56 ms. Allocated memory is still 46.1 MB. Free memory was 23.0 MB in the beginning and 21.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:16:22,290 INFO L168 Benchmark]: RCFGBuilder took 714.57 ms. Allocated memory is still 46.1 MB. Free memory was 21.9 MB in the beginning and 24.7 MB in the end (delta: -2.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:22,291 INFO L168 Benchmark]: TraceAbstraction took 4697.00 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 24.2 MB in the beginning and 23.6 MB in the end (delta: 648.1 kB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:22,292 INFO L168 Benchmark]: Witness Printer took 62.89 ms. Allocated memory is still 56.6 MB. Free memory was 23.6 MB in the beginning and 21.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:22,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 37.7 MB. Free memory was 22.2 MB in the beginning and 22.1 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1080.12 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 21.0 MB in the beginning and 25.5 MB in the end (delta: -4.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 97.19 ms. Allocated memory is still 46.1 MB. Free memory was 25.5 MB in the beginning and 23.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.56 ms. Allocated memory is still 46.1 MB. Free memory was 23.0 MB in the beginning and 21.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 714.57 ms. Allocated memory is still 46.1 MB. Free memory was 21.9 MB in the beginning and 24.7 MB in the end (delta: -2.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4697.00 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 24.2 MB in the beginning and 23.6 MB in the end (delta: 648.1 kB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. * Witness Printer took 62.89 ms. Allocated memory is still 56.6 MB. Free memory was 23.6 MB in the beginning and 21.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 974]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 4 SDslu, 20 SDs, 0 SdLazy, 15 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 3 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 2 QuantifiedInterpolants, 415 SizeOfPredicates, 4 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...