./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cbmc-regression/float21_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-cbmc-regression/float21_true-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 941e668ccf070b9a219d3bc8afc49564f51e679a ............................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-cbmc-regression/float21_true-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 941e668ccf070b9a219d3bc8afc49564f51e679a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:39:54,943 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:39:54,944 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:39:54,959 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:39:54,961 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:39:54,965 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:39:54,967 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:39:54,969 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:39:54,971 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:39:54,971 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:39:54,972 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:39:54,973 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:39:54,974 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:39:54,975 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:39:54,976 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:39:54,977 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:39:54,978 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:39:54,980 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:39:54,982 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:39:54,984 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:39:54,985 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:39:54,986 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:39:54,989 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:39:54,989 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:39:54,989 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:39:54,991 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:39:54,992 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:39:54,993 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:39:54,993 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:39:54,994 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:39:54,995 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:39:54,996 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:39:54,996 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:39:54,996 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:39:54,997 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:39:54,998 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:39:54,999 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:39:55,023 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:39:55,027 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:39:55,028 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:39:55,028 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:39:55,029 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:39:55,029 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:39:55,029 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:39:55,029 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:39:55,029 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:39:55,031 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:39:55,031 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:39:55,032 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:39:55,032 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:39:55,032 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:39:55,032 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:39:55,033 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:39:55,033 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:39:55,033 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:39:55,034 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:39:55,034 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:39:55,034 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:39:55,034 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:39:55,034 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:39:55,035 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:39:55,037 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:39:55,037 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:39:55,038 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:39:55,038 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:39:55,038 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:39:55,038 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:39:55,038 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 941e668ccf070b9a219d3bc8afc49564f51e679a [2018-11-28 17:39:55,089 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:39:55,102 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:39:55,106 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:39:55,108 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:39:55,108 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:39:55,109 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float21_true-unreach-call.i [2018-11-28 17:39:55,170 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/902a799b3/5184dc432e744e888516fa86f93e359d/FLAG2407f306e [2018-11-28 17:39:55,753 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:39:55,757 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float21_true-unreach-call.i [2018-11-28 17:39:55,773 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/902a799b3/5184dc432e744e888516fa86f93e359d/FLAG2407f306e [2018-11-28 17:39:55,980 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/902a799b3/5184dc432e744e888516fa86f93e359d [2018-11-28 17:39:55,984 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:39:55,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:39:55,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:55,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:39:55,992 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:39:55,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:55" (1/1) ... [2018-11-28 17:39:55,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c415b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:55, skipping insertion in model container [2018-11-28 17:39:55,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:55" (1/1) ... [2018-11-28 17:39:56,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:39:56,072 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:39:56,675 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:845) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1668) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:208) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1320) 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:998) 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:2291) 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:665) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2291) 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:2291) 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:1482) 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:963) 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:1342) 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:3446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2241) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:539) 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:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-28 17:39:56,684 INFO L168 Benchmark]: Toolchain (without parser) took 699.19 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 931.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:56,687 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:56,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.11 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 931.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:56,692 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 696.11 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 931.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:845) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 17:39:58,948 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:39:58,950 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:39:58,963 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:39:58,964 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:39:58,965 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:39:58,966 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:39:58,969 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:39:58,971 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:39:58,972 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:39:58,973 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:39:58,973 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:39:58,974 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:39:58,976 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:39:58,977 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:39:58,978 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:39:58,979 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:39:58,981 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:39:58,984 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:39:58,986 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:39:58,987 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:39:58,989 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:39:58,992 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:39:58,992 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:39:58,992 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:39:58,993 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:39:58,999 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:39:59,000 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:39:59,001 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:39:59,003 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:39:59,005 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:39:59,006 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:39:59,006 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:39:59,006 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:39:59,007 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:39:59,007 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:39:59,009 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:39:59,039 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:39:59,040 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:39:59,041 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:39:59,042 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:39:59,043 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:39:59,044 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:39:59,044 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:39:59,045 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:39:59,045 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:39:59,045 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:39:59,045 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:39:59,045 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:39:59,046 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:39:59,046 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:39:59,046 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:39:59,046 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:39:59,046 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:39:59,046 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:39:59,047 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:39:59,049 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:39:59,049 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:39:59,049 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:39:59,049 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:39:59,049 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:39:59,051 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:39:59,051 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:39:59,051 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:39:59,051 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:39:59,052 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:39:59,052 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:39:59,053 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:39:59,053 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:39:59,053 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 941e668ccf070b9a219d3bc8afc49564f51e679a [2018-11-28 17:39:59,122 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:39:59,136 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:39:59,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:39:59,144 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:39:59,144 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:39:59,145 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float21_true-unreach-call.i [2018-11-28 17:39:59,215 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f1157a6f/d924b4494b9041ea9b5a53918d6eecef/FLAG9232e16a1 [2018-11-28 17:39:59,793 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:39:59,793 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float21_true-unreach-call.i [2018-11-28 17:39:59,812 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f1157a6f/d924b4494b9041ea9b5a53918d6eecef/FLAG9232e16a1 [2018-11-28 17:40:00,058 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f1157a6f/d924b4494b9041ea9b5a53918d6eecef [2018-11-28 17:40:00,064 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:40:00,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:40:00,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:00,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:40:00,076 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:40:00,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:00" (1/1) ... [2018-11-28 17:40:00,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2361a420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:00, skipping insertion in model container [2018-11-28 17:40:00,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:00" (1/1) ... [2018-11-28 17:40:00,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:40:00,148 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:40:00,836 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:00,850 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:40:00,940 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:01,522 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:40:01,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:01 WrapperNode [2018-11-28 17:40:01,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:01,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:01,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:40:01,525 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:40:01,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:01" (1/1) ... [2018-11-28 17:40:01,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:01" (1/1) ... [2018-11-28 17:40:01,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:01,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:40:01,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:40:01,576 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:40:01,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:01" (1/1) ... [2018-11-28 17:40:01,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:01" (1/1) ... [2018-11-28 17:40:01,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:01" (1/1) ... [2018-11-28 17:40:01,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:01" (1/1) ... [2018-11-28 17:40:01,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:01" (1/1) ... [2018-11-28 17:40:01,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:01" (1/1) ... [2018-11-28 17:40:01,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:01" (1/1) ... [2018-11-28 17:40:01,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:40:01,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:40:01,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:40:01,624 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:40:01,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:01,711 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:40:01,712 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:40:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:40:01,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:40:01,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:40:01,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:40:12,547 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:40:12,548 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:40:12,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:12 BoogieIcfgContainer [2018-11-28 17:40:12,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:40:12,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:40:12,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:40:12,554 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:40:12,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:40:00" (1/3) ... [2018-11-28 17:40:12,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c937234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:12, skipping insertion in model container [2018-11-28 17:40:12,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:01" (2/3) ... [2018-11-28 17:40:12,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c937234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:12, skipping insertion in model container [2018-11-28 17:40:12,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:12" (3/3) ... [2018-11-28 17:40:12,560 INFO L112 eAbstractionObserver]: Analyzing ICFG float21_true-unreach-call.i [2018-11-28 17:40:12,571 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:40:12,584 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-11-28 17:40:12,605 INFO L257 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2018-11-28 17:40:12,644 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:40:12,645 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:40:12,645 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:40:12,645 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:40:12,645 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:40:12,645 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:40:12,645 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:40:12,646 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:40:12,646 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:40:12,669 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2018-11-28 17:40:12,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 17:40:12,675 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:12,677 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:12,680 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:12,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:12,687 INFO L82 PathProgramCache]: Analyzing trace with hash -51320395, now seen corresponding path program 1 times [2018-11-28 17:40:12,692 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:12,693 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:12,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:40:12,748 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:40:12,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:40:12,817 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:40:12,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:40:12,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:40:12,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:40:12,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:40:12,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:40:12,849 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 3 states. [2018-11-28 17:40:17,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:40:17,410 INFO L93 Difference]: Finished difference Result 94 states and 117 transitions. [2018-11-28 17:40:17,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:40:17,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 17:40:17,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:40:17,455 INFO L225 Difference]: With dead ends: 94 [2018-11-28 17:40:17,455 INFO L226 Difference]: Without dead ends: 43 [2018-11-28 17:40:17,459 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:40:17,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-28 17:40:17,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-28 17:40:17,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 17:40:17,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 42 transitions. [2018-11-28 17:40:17,503 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 42 transitions. Word has length 7 [2018-11-28 17:40:17,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:40:17,504 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 42 transitions. [2018-11-28 17:40:17,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:40:17,504 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 42 transitions. [2018-11-28 17:40:17,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 17:40:17,505 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:17,505 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:17,506 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:17,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:17,506 INFO L82 PathProgramCache]: Analyzing trace with hash -2074134857, now seen corresponding path program 1 times [2018-11-28 17:40:17,506 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:17,507 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:17,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:40:17,532 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:40:18,058 WARN L180 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 8 [2018-11-28 17:40:18,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:40:18,071 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:40:18,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:40:18,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 17:40:18,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 17:40:18,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 17:40:18,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 17:40:18,093 INFO L87 Difference]: Start difference. First operand 43 states and 42 transitions. Second operand 4 states. [2018-11-28 17:40:24,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:40:24,368 INFO L93 Difference]: Finished difference Result 43 states and 42 transitions. [2018-11-28 17:40:24,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 17:40:24,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-28 17:40:24,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:40:24,387 INFO L225 Difference]: With dead ends: 43 [2018-11-28 17:40:24,387 INFO L226 Difference]: Without dead ends: 41 [2018-11-28 17:40:24,388 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 17:40:24,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-28 17:40:24,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-28 17:40:24,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 17:40:24,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 40 transitions. [2018-11-28 17:40:24,395 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 40 transitions. Word has length 9 [2018-11-28 17:40:24,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:40:24,395 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 40 transitions. [2018-11-28 17:40:24,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 17:40:24,395 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 40 transitions. [2018-11-28 17:40:24,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 17:40:24,396 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:24,396 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:24,396 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:24,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:24,397 INFO L82 PathProgramCache]: Analyzing trace with hash 126332959, now seen corresponding path program 1 times [2018-11-28 17:40:24,397 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:24,397 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:24,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:40:24,426 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:40:24,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:40:24,456 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:40:24,470 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:40:24,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:40:24,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:40:24,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:40:24,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:40:24,471 INFO L87 Difference]: Start difference. First operand 41 states and 40 transitions. Second operand 3 states. [2018-11-28 17:40:30,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:40:30,561 INFO L93 Difference]: Finished difference Result 41 states and 40 transitions. [2018-11-28 17:40:30,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:40:30,571 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 17:40:30,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:40:30,572 INFO L225 Difference]: With dead ends: 41 [2018-11-28 17:40:30,572 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 17:40:30,573 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:40:30,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 17:40:30,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-28 17:40:30,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 17:40:30,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 36 transitions. [2018-11-28 17:40:30,579 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 36 transitions. Word has length 10 [2018-11-28 17:40:30,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:40:30,580 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 36 transitions. [2018-11-28 17:40:30,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:40:30,580 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2018-11-28 17:40:30,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 17:40:30,580 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:30,582 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:30,582 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:30,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:30,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1147014337, now seen corresponding path program 1 times [2018-11-28 17:40:30,584 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:30,584 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:30,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:40:30,625 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:40:31,052 WARN L180 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 8 [2018-11-28 17:40:31,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:40:31,112 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:40:31,122 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:40:31,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 17:40:31,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 17:40:31,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 17:40:31,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 17:40:31,123 INFO L87 Difference]: Start difference. First operand 37 states and 36 transitions. Second operand 4 states. [2018-11-28 17:40:37,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:40:37,168 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2018-11-28 17:40:37,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 17:40:37,185 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-28 17:40:37,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:40:37,187 INFO L225 Difference]: With dead ends: 37 [2018-11-28 17:40:37,187 INFO L226 Difference]: Without dead ends: 35 [2018-11-28 17:40:37,187 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 17:40:37,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-28 17:40:37,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-28 17:40:37,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 17:40:37,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2018-11-28 17:40:37,193 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 12 [2018-11-28 17:40:37,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:40:37,193 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2018-11-28 17:40:37,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 17:40:37,193 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2018-11-28 17:40:37,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 17:40:37,195 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:37,195 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:37,195 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:37,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:37,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1197710182, now seen corresponding path program 1 times [2018-11-28 17:40:37,196 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:37,196 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:37,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:37,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:40:37,229 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:40:37,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:40:37,258 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:40:37,270 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:40:37,270 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:40:37,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:40:37,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:40:37,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:40:37,271 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand 3 states. [2018-11-28 17:40:43,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:40:43,377 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2018-11-28 17:40:43,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:40:43,386 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-28 17:40:43,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:40:43,387 INFO L225 Difference]: With dead ends: 35 [2018-11-28 17:40:43,387 INFO L226 Difference]: Without dead ends: 31 [2018-11-28 17:40:43,388 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:40:43,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-28 17:40:43,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-28 17:40:43,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-28 17:40:43,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2018-11-28 17:40:43,393 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 13 [2018-11-28 17:40:43,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:40:43,393 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2018-11-28 17:40:43,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:40:43,393 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2018-11-28 17:40:43,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 17:40:43,394 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:43,394 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:43,395 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:43,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:43,396 INFO L82 PathProgramCache]: Analyzing trace with hash -51618866, now seen corresponding path program 1 times [2018-11-28 17:40:43,396 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:43,396 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:43,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:43,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:40:43,449 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:40:43,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:40:43,577 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:40:43,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:40:43,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:40:43,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:40:43,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:40:43,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:40:43,597 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 3 states. [2018-11-28 17:40:49,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:40:49,437 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2018-11-28 17:40:49,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:40:49,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-28 17:40:49,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:40:49,448 INFO L225 Difference]: With dead ends: 31 [2018-11-28 17:40:49,448 INFO L226 Difference]: Without dead ends: 29 [2018-11-28 17:40:49,448 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:40:49,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-28 17:40:49,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-11-28 17:40:49,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-28 17:40:49,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2018-11-28 17:40:49,453 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 15 [2018-11-28 17:40:49,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:40:49,453 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2018-11-28 17:40:49,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:40:49,453 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2018-11-28 17:40:49,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-28 17:40:49,455 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:49,455 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:49,456 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:49,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:49,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1600180719, now seen corresponding path program 1 times [2018-11-28 17:40:49,456 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:49,456 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:49,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:40:49,502 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:40:49,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:40:49,524 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:40:49,537 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:40:49,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:40:49,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:40:49,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:40:49,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:40:49,539 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand 3 states. [2018-11-28 17:40:54,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:40:54,319 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2018-11-28 17:40:54,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:40:54,329 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-28 17:40:54,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:40:54,330 INFO L225 Difference]: With dead ends: 29 [2018-11-28 17:40:54,330 INFO L226 Difference]: Without dead ends: 25 [2018-11-28 17:40:54,330 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:40:54,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-28 17:40:54,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-28 17:40:54,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-28 17:40:54,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2018-11-28 17:40:54,336 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 16 [2018-11-28 17:40:54,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:40:54,336 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2018-11-28 17:40:54,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:40:54,337 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2018-11-28 17:40:54,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 17:40:54,337 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:54,337 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:54,338 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:54,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:54,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1137675106, now seen corresponding path program 1 times [2018-11-28 17:40:54,339 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:54,345 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:54,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:40:54,571 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:40:54,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:40:54,616 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:40:54,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:40:54,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:40:54,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:40:54,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:40:54,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:40:54,634 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 3 states. [2018-11-28 17:40:57,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:40:57,556 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2018-11-28 17:40:57,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:40:57,566 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-11-28 17:40:57,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:40:57,567 INFO L225 Difference]: With dead ends: 25 [2018-11-28 17:40:57,567 INFO L226 Difference]: Without dead ends: 23 [2018-11-28 17:40:57,568 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:40:57,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-28 17:40:57,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-28 17:40:57,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-28 17:40:57,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2018-11-28 17:40:57,573 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 19 [2018-11-28 17:40:57,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:40:57,573 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2018-11-28 17:40:57,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:40:57,574 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2018-11-28 17:40:57,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 17:40:57,574 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:57,575 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:57,577 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:57,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:57,578 INFO L82 PathProgramCache]: Analyzing trace with hash -888025949, now seen corresponding path program 1 times [2018-11-28 17:40:57,578 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:57,578 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:57,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:41:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:41:00,283 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:41:06,457 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~f~0 (_ FloatingPoint 8 24))) (and (fp.isSubnormal main_~f~0) (not (fp.eq ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven main_~f~0)) main_~f~0)))) is different from false [2018-11-28 17:41:08,472 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~f~0 (_ FloatingPoint 8 24))) (and (fp.isSubnormal main_~f~0) (not (fp.eq ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven main_~f~0)) main_~f~0)))) is different from true [2018-11-28 17:41:08,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:41:08,477 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:41:08,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:41:08,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:41:08,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 17:41:08,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 17:41:08,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=3, Unknown=2, NotChecked=2, Total=12 [2018-11-28 17:41:08,494 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 4 states. [2018-11-28 17:41:10,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:41:10,738 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2018-11-28 17:41:10,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 17:41:10,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-11-28 17:41:10,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:41:10,758 INFO L225 Difference]: With dead ends: 23 [2018-11-28 17:41:10,758 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:41:10,759 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=5, Invalid=3, Unknown=2, NotChecked=2, Total=12 [2018-11-28 17:41:10,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:41:10,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:41:10,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:41:10,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:41:10,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-11-28 17:41:10,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:41:10,760 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:41:10,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 17:41:10,762 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:41:10,762 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:41:10,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:41:10,823 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 17:41:10,823 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:41:10,823 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:41:10,823 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:41:10,823 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:41:10,823 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:41:10,824 INFO L448 ceAbstractionStarter]: For program point L382(line 382) no Hoare annotation was computed. [2018-11-28 17:41:10,824 INFO L448 ceAbstractionStarter]: For program point L382-2(lines 365 390) no Hoare annotation was computed. [2018-11-28 17:41:10,824 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 364 390) no Hoare annotation was computed. [2018-11-28 17:41:10,824 INFO L448 ceAbstractionStarter]: For program point L374(line 374) no Hoare annotation was computed. [2018-11-28 17:41:10,824 INFO L448 ceAbstractionStarter]: For program point L374-2(line 374) no Hoare annotation was computed. [2018-11-28 17:41:10,824 INFO L448 ceAbstractionStarter]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2018-11-28 17:41:10,824 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 379) no Hoare annotation was computed. [2018-11-28 17:41:10,825 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 378) no Hoare annotation was computed. [2018-11-28 17:41:10,825 INFO L448 ceAbstractionStarter]: For program point L383(line 383) no Hoare annotation was computed. [2018-11-28 17:41:10,825 INFO L448 ceAbstractionStarter]: For program point L383-2(lines 365 390) no Hoare annotation was computed. [2018-11-28 17:41:10,825 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 370) no Hoare annotation was computed. [2018-11-28 17:41:10,825 INFO L448 ceAbstractionStarter]: For program point L384(line 384) no Hoare annotation was computed. [2018-11-28 17:41:10,825 INFO L448 ceAbstractionStarter]: For program point L384-2(lines 365 390) no Hoare annotation was computed. [2018-11-28 17:41:10,825 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 364 390) no Hoare annotation was computed. [2018-11-28 17:41:10,826 INFO L448 ceAbstractionStarter]: For program point L385(line 385) no Hoare annotation was computed. [2018-11-28 17:41:10,827 INFO L448 ceAbstractionStarter]: For program point L385-2(line 385) no Hoare annotation was computed. [2018-11-28 17:41:10,828 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 364 390) the Hoare annotation is: true [2018-11-28 17:41:10,828 INFO L448 ceAbstractionStarter]: For program point L377(line 377) no Hoare annotation was computed. [2018-11-28 17:41:10,828 INFO L448 ceAbstractionStarter]: For program point L377-1(line 377) no Hoare annotation was computed. [2018-11-28 17:41:10,828 INFO L448 ceAbstractionStarter]: For program point L377-3(lines 365 390) no Hoare annotation was computed. [2018-11-28 17:41:10,828 INFO L448 ceAbstractionStarter]: For program point L378(line 378) no Hoare annotation was computed. [2018-11-28 17:41:10,828 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 380) no Hoare annotation was computed. [2018-11-28 17:41:10,828 INFO L448 ceAbstractionStarter]: For program point L378-2(lines 365 390) no Hoare annotation was computed. [2018-11-28 17:41:10,828 INFO L448 ceAbstractionStarter]: For program point L370(line 370) no Hoare annotation was computed. [2018-11-28 17:41:10,829 INFO L448 ceAbstractionStarter]: For program point L370-1(line 370) no Hoare annotation was computed. [2018-11-28 17:41:10,829 INFO L448 ceAbstractionStarter]: For program point L370-3(line 370) no Hoare annotation was computed. [2018-11-28 17:41:10,829 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 374) no Hoare annotation was computed. [2018-11-28 17:41:10,829 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 373) no Hoare annotation was computed. [2018-11-28 17:41:10,829 INFO L448 ceAbstractionStarter]: For program point L379(line 379) no Hoare annotation was computed. [2018-11-28 17:41:10,830 INFO L448 ceAbstractionStarter]: For program point L379-2(lines 365 390) no Hoare annotation was computed. [2018-11-28 17:41:10,830 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 377) no Hoare annotation was computed. [2018-11-28 17:41:10,830 INFO L448 ceAbstractionStarter]: For program point L388(line 388) no Hoare annotation was computed. [2018-11-28 17:41:10,830 INFO L448 ceAbstractionStarter]: For program point L388-1(line 388) no Hoare annotation was computed. [2018-11-28 17:41:10,830 INFO L448 ceAbstractionStarter]: For program point L388-3(line 388) no Hoare annotation was computed. [2018-11-28 17:41:10,830 INFO L448 ceAbstractionStarter]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 382) no Hoare annotation was computed. [2018-11-28 17:41:10,830 INFO L448 ceAbstractionStarter]: For program point L380(line 380) no Hoare annotation was computed. [2018-11-28 17:41:10,831 INFO L448 ceAbstractionStarter]: For program point L380-2(lines 365 390) no Hoare annotation was computed. [2018-11-28 17:41:10,831 INFO L448 ceAbstractionStarter]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 383) no Hoare annotation was computed. [2018-11-28 17:41:10,831 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 381) no Hoare annotation was computed. [2018-11-28 17:41:10,831 INFO L448 ceAbstractionStarter]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 385) no Hoare annotation was computed. [2018-11-28 17:41:10,831 INFO L448 ceAbstractionStarter]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 388) no Hoare annotation was computed. [2018-11-28 17:41:10,831 INFO L448 ceAbstractionStarter]: For program point L381(line 381) no Hoare annotation was computed. [2018-11-28 17:41:10,831 INFO L448 ceAbstractionStarter]: For program point L381-2(lines 365 390) no Hoare annotation was computed. [2018-11-28 17:41:10,832 INFO L448 ceAbstractionStarter]: For program point L373(line 373) no Hoare annotation was computed. [2018-11-28 17:41:10,832 INFO L448 ceAbstractionStarter]: For program point L373-1(line 373) no Hoare annotation was computed. [2018-11-28 17:41:10,832 INFO L448 ceAbstractionStarter]: For program point L373-3(lines 365 390) no Hoare annotation was computed. [2018-11-28 17:41:10,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:41:10 BoogieIcfgContainer [2018-11-28 17:41:10,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:41:10,838 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:41:10,838 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:41:10,839 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:41:10,839 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:12" (3/4) ... [2018-11-28 17:41:10,843 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:41:10,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:41:10,850 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:41:10,856 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 17:41:10,856 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 17:41:10,857 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:41:10,919 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:41:10,919 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:41:10,920 INFO L168 Benchmark]: Toolchain (without parser) took 70855.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 946.0 MB in the beginning and 918.3 MB in the end (delta: 27.7 MB). Peak memory consumption was 151.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:41:10,921 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:41:10,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1453.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 131.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:41:10,923 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:41:10,925 INFO L168 Benchmark]: Boogie Preprocessor took 47.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:41:10,925 INFO L168 Benchmark]: RCFGBuilder took 10924.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:41:10,926 INFO L168 Benchmark]: TraceAbstraction took 58288.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 918.3 MB in the end (delta: 172.0 MB). Peak memory consumption was 172.0 MB. Max. memory is 11.5 GB. [2018-11-28 17:41:10,927 INFO L168 Benchmark]: Witness Printer took 80.97 ms. Allocated memory is still 1.2 GB. Free memory is still 918.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:41:10,932 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1453.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 131.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 10924.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 58288.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 918.3 MB in the end (delta: 172.0 MB). Peak memory consumption was 172.0 MB. Max. memory is 11.5 GB. * Witness Printer took 80.97 ms. Allocated memory is still 1.2 GB. Free memory is still 918.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 382]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 370]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 388]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 373]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 385]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 378]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 374]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 383]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 377]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 381]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 384]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 379]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 380]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 52 locations, 13 error locations. SAFE Result, 58.1s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 45.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 186 SDtfs, 153 SDslu, 98 SDs, 0 SdLazy, 116 SolverSat, 5 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 43.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 96 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 114 ConstructedInterpolants, 1 QuantifiedInterpolants, 9579 SizeOfPredicates, 16 NumberOfNonLiveVariables, 210 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...