./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float21_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float21_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer --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=/tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float21_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer --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 0.1.23-635dfa2 [2018-12-08 13:32:16,193 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 13:32:16,194 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 13:32:16,202 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 13:32:16,202 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 13:32:16,203 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 13:32:16,203 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 13:32:16,204 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 13:32:16,205 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 13:32:16,205 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 13:32:16,206 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 13:32:16,206 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 13:32:16,206 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 13:32:16,207 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 13:32:16,207 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 13:32:16,208 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 13:32:16,208 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 13:32:16,209 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 13:32:16,210 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 13:32:16,211 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 13:32:16,211 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 13:32:16,212 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 13:32:16,213 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 13:32:16,213 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 13:32:16,213 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 13:32:16,214 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 13:32:16,214 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 13:32:16,214 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 13:32:16,215 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 13:32:16,215 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 13:32:16,215 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 13:32:16,216 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 13:32:16,216 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 13:32:16,216 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 13:32:16,216 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 13:32:16,217 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 13:32:16,217 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 13:32:16,226 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 13:32:16,227 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 13:32:16,227 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 13:32:16,228 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 13:32:16,228 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 13:32:16,228 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 13:32:16,228 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 13:32:16,229 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 13:32:16,229 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 13:32:16,229 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 13:32:16,229 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 13:32:16,229 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 13:32:16,229 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 13:32:16,229 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 13:32:16,230 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 13:32:16,230 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 13:32:16,230 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 13:32:16,230 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 13:32:16,230 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 13:32:16,230 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 13:32:16,231 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 13:32:16,231 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 13:32:16,231 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 13:32:16,231 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 13:32:16,231 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 13:32:16,231 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 13:32:16,231 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 13:32:16,232 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 13:32:16,232 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 13:32:16,232 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 13:32:16,232 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer 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 [2018-12-08 13:32:16,256 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 13:32:16,265 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 13:32:16,267 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 13:32:16,268 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 13:32:16,269 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 13:32:16,269 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float21_true-unreach-call.i [2018-12-08 13:32:16,307 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/data/d8f13af84/6b79493ff27543c98dd6c6548d834cd7/FLAGba2a12305 [2018-12-08 13:32:16,688 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 13:32:16,689 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/sv-benchmarks/c/floats-cbmc-regression/float21_true-unreach-call.i [2018-12-08 13:32:16,695 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/data/d8f13af84/6b79493ff27543c98dd6c6548d834cd7/FLAGba2a12305 [2018-12-08 13:32:16,704 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/data/d8f13af84/6b79493ff27543c98dd6c6548d834cd7 [2018-12-08 13:32:16,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 13:32:16,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 13:32:16,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 13:32:16,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 13:32:16,709 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 13:32:16,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:32:16" (1/1) ... [2018-12-08 13:32:16,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b7c88b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:32:16, skipping insertion in model container [2018-12-08 13:32:16,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:32:16" (1/1) ... [2018-12-08 13:32:16,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 13:32:16,734 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 13:32:16,980 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-12-08 13:32:16,983 INFO L168 Benchmark]: Toolchain (without parser) took 276.99 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 939.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 13:32:16,984 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:32:16,985 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.48 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 939.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 13:32:16,986 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 275.48 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 939.9 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 0.1.23-635dfa2 [2018-12-08 13:32:18,000 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 13:32:18,001 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 13:32:18,007 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 13:32:18,007 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 13:32:18,008 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 13:32:18,008 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 13:32:18,009 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 13:32:18,010 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 13:32:18,010 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 13:32:18,010 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 13:32:18,011 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 13:32:18,011 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 13:32:18,011 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 13:32:18,012 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 13:32:18,012 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 13:32:18,013 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 13:32:18,014 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 13:32:18,014 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 13:32:18,015 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 13:32:18,016 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 13:32:18,016 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 13:32:18,017 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 13:32:18,018 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 13:32:18,018 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 13:32:18,018 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 13:32:18,019 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 13:32:18,019 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 13:32:18,019 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 13:32:18,020 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 13:32:18,020 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 13:32:18,020 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 13:32:18,021 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 13:32:18,021 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 13:32:18,021 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 13:32:18,021 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 13:32:18,022 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-08 13:32:18,029 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 13:32:18,029 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 13:32:18,029 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 13:32:18,029 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 13:32:18,030 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 13:32:18,030 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 13:32:18,030 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 13:32:18,030 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 13:32:18,030 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 13:32:18,030 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 13:32:18,030 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 13:32:18,030 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 13:32:18,031 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 13:32:18,031 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 13:32:18,031 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 13:32:18,031 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 13:32:18,031 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 13:32:18,031 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 13:32:18,031 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 13:32:18,031 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 13:32:18,031 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 13:32:18,031 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 13:32:18,031 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 13:32:18,032 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 13:32:18,032 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 13:32:18,032 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 13:32:18,032 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 13:32:18,032 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 13:32:18,032 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 13:32:18,032 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 13:32:18,032 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 13:32:18,032 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 13:32:18,032 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer 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 [2018-12-08 13:32:18,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 13:32:18,056 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 13:32:18,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 13:32:18,059 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 13:32:18,060 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 13:32:18,060 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float21_true-unreach-call.i [2018-12-08 13:32:18,096 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/data/66801a559/d97960269bfc4dfd98581fdb85880e78/FLAG7c5ff05d7 [2018-12-08 13:32:18,547 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 13:32:18,548 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/sv-benchmarks/c/floats-cbmc-regression/float21_true-unreach-call.i [2018-12-08 13:32:18,554 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/data/66801a559/d97960269bfc4dfd98581fdb85880e78/FLAG7c5ff05d7 [2018-12-08 13:32:18,563 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/data/66801a559/d97960269bfc4dfd98581fdb85880e78 [2018-12-08 13:32:18,564 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 13:32:18,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 13:32:18,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 13:32:18,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 13:32:18,569 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 13:32:18,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:32:18" (1/1) ... [2018-12-08 13:32:18,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48d73ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:32:18, skipping insertion in model container [2018-12-08 13:32:18,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 01:32:18" (1/1) ... [2018-12-08 13:32:18,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 13:32:18,608 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 13:32:18,905 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:32:18,909 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 13:32:18,946 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 13:32:19,128 INFO L195 MainTranslator]: Completed translation [2018-12-08 13:32:19,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:32:19 WrapperNode [2018-12-08 13:32:19,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 13:32:19,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 13:32:19,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 13:32:19,129 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 13:32:19,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:32:19" (1/1) ... [2018-12-08 13:32:19,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:32:19" (1/1) ... [2018-12-08 13:32:19,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 13:32:19,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 13:32:19,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 13:32:19,150 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 13:32:19,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:32:19" (1/1) ... [2018-12-08 13:32:19,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:32:19" (1/1) ... [2018-12-08 13:32:19,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:32:19" (1/1) ... [2018-12-08 13:32:19,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:32:19" (1/1) ... [2018-12-08 13:32:19,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:32:19" (1/1) ... [2018-12-08 13:32:19,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:32:19" (1/1) ... [2018-12-08 13:32:19,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:32:19" (1/1) ... [2018-12-08 13:32:19,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 13:32:19,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 13:32:19,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 13:32:19,166 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 13:32:19,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:32:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/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 [2018-12-08 13:32:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 13:32:19,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 13:32:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 13:32:19,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 13:32:19,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 13:32:19,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 13:32:26,221 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 13:32:26,222 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 13:32:26,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:32:26 BoogieIcfgContainer [2018-12-08 13:32:26,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 13:32:26,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 13:32:26,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 13:32:26,225 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 13:32:26,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 01:32:18" (1/3) ... [2018-12-08 13:32:26,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb325ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 01:32:26, skipping insertion in model container [2018-12-08 13:32:26,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 01:32:19" (2/3) ... [2018-12-08 13:32:26,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb325ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 01:32:26, skipping insertion in model container [2018-12-08 13:32:26,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:32:26" (3/3) ... [2018-12-08 13:32:26,228 INFO L112 eAbstractionObserver]: Analyzing ICFG float21_true-unreach-call.i [2018-12-08 13:32:26,234 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 13:32:26,239 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 13 error locations. [2018-12-08 13:32:26,247 INFO L257 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2018-12-08 13:32:26,264 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 13:32:26,264 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 13:32:26,264 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 13:32:26,264 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 13:32:26,265 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 13:32:26,265 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 13:32:26,265 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 13:32:26,265 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 13:32:26,265 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 13:32:26,277 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2018-12-08 13:32:26,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 13:32:26,281 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:32:26,282 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:32:26,284 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:32:26,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:32:26,288 INFO L82 PathProgramCache]: Analyzing trace with hash -51320395, now seen corresponding path program 1 times [2018-12-08 13:32:26,291 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 13:32:26,292 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/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 [2018-12-08 13:32:26,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:32:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:32:26,321 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 13:32:26,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:32:26,352 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 13:32:26,360 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:32:26,360 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 13:32:26,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 13:32:26,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 13:32:26,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 13:32:26,371 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 3 states. [2018-12-08 13:32:30,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:32:30,251 INFO L93 Difference]: Finished difference Result 94 states and 117 transitions. [2018-12-08 13:32:30,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 13:32:30,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-08 13:32:30,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 13:32:30,283 INFO L225 Difference]: With dead ends: 94 [2018-12-08 13:32:30,283 INFO L226 Difference]: Without dead ends: 43 [2018-12-08 13:32:30,286 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 [2018-12-08 13:32:30,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-08 13:32:30,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-08 13:32:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-08 13:32:30,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 42 transitions. [2018-12-08 13:32:30,309 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 42 transitions. Word has length 7 [2018-12-08 13:32:30,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 13:32:30,309 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 42 transitions. [2018-12-08 13:32:30,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 13:32:30,309 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 42 transitions. [2018-12-08 13:32:30,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 13:32:30,310 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:32:30,310 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:32:30,310 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:32:30,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:32:30,310 INFO L82 PathProgramCache]: Analyzing trace with hash -2074134857, now seen corresponding path program 1 times [2018-12-08 13:32:30,310 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 13:32:30,311 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/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 [2018-12-08 13:32:30,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:32:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:32:30,329 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 13:32:30,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:32:30,415 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 13:32:30,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:32:30,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 13:32:30,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 13:32:30,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 13:32:30,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 13:32:30,424 INFO L87 Difference]: Start difference. First operand 43 states and 42 transitions. Second operand 4 states. [2018-12-08 13:32:36,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:32:36,490 INFO L93 Difference]: Finished difference Result 43 states and 42 transitions. [2018-12-08 13:32:36,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 13:32:36,501 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-12-08 13:32:36,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 13:32:36,502 INFO L225 Difference]: With dead ends: 43 [2018-12-08 13:32:36,502 INFO L226 Difference]: Without dead ends: 41 [2018-12-08 13:32:36,503 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 13:32:36,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-08 13:32:36,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-08 13:32:36,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-08 13:32:36,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 40 transitions. [2018-12-08 13:32:36,506 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 40 transitions. Word has length 9 [2018-12-08 13:32:36,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 13:32:36,506 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 40 transitions. [2018-12-08 13:32:36,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 13:32:36,506 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 40 transitions. [2018-12-08 13:32:36,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 13:32:36,506 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:32:36,507 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:32:36,507 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:32:36,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:32:36,507 INFO L82 PathProgramCache]: Analyzing trace with hash 126332959, now seen corresponding path program 1 times [2018-12-08 13:32:36,507 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 13:32:36,507 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/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 [2018-12-08 13:32:36,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:32:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:32:36,523 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 13:32:36,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:32:36,531 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 13:32:36,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:32:36,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 13:32:36,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 13:32:36,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 13:32:36,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 13:32:36,540 INFO L87 Difference]: Start difference. First operand 41 states and 40 transitions. Second operand 3 states. [2018-12-08 13:32:41,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:32:41,065 INFO L93 Difference]: Finished difference Result 41 states and 40 transitions. [2018-12-08 13:32:41,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 13:32:41,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-08 13:32:41,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 13:32:41,072 INFO L225 Difference]: With dead ends: 41 [2018-12-08 13:32:41,072 INFO L226 Difference]: Without dead ends: 37 [2018-12-08 13:32:41,072 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 [2018-12-08 13:32:41,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-08 13:32:41,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-08 13:32:41,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-08 13:32:41,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 36 transitions. [2018-12-08 13:32:41,075 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 36 transitions. Word has length 10 [2018-12-08 13:32:41,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 13:32:41,075 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 36 transitions. [2018-12-08 13:32:41,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 13:32:41,075 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2018-12-08 13:32:41,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-08 13:32:41,075 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:32:41,075 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:32:41,075 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:32:41,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:32:41,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1147014337, now seen corresponding path program 1 times [2018-12-08 13:32:41,076 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 13:32:41,076 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/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 [2018-12-08 13:32:41,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:32:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:32:41,099 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 13:32:41,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:32:41,225 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 13:32:41,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:32:41,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 13:32:41,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 13:32:41,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 13:32:41,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 13:32:41,233 INFO L87 Difference]: Start difference. First operand 37 states and 36 transitions. Second operand 4 states. [2018-12-08 13:32:45,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:32:45,020 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2018-12-08 13:32:45,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 13:32:45,030 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-12-08 13:32:45,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 13:32:45,030 INFO L225 Difference]: With dead ends: 37 [2018-12-08 13:32:45,030 INFO L226 Difference]: Without dead ends: 35 [2018-12-08 13:32:45,030 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 13:32:45,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-12-08 13:32:45,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-12-08 13:32:45,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-08 13:32:45,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2018-12-08 13:32:45,033 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 12 [2018-12-08 13:32:45,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 13:32:45,033 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2018-12-08 13:32:45,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 13:32:45,033 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2018-12-08 13:32:45,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-08 13:32:45,033 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:32:45,033 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:32:45,033 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:32:45,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:32:45,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1197710182, now seen corresponding path program 1 times [2018-12-08 13:32:45,034 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 13:32:45,034 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/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 [2018-12-08 13:32:45,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:32:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:32:45,057 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 13:32:45,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:32:45,069 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 13:32:45,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:32:45,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 13:32:45,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 13:32:45,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 13:32:45,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 13:32:45,077 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand 3 states. [2018-12-08 13:32:48,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:32:48,805 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2018-12-08 13:32:48,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 13:32:48,811 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-12-08 13:32:48,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 13:32:48,812 INFO L225 Difference]: With dead ends: 35 [2018-12-08 13:32:48,812 INFO L226 Difference]: Without dead ends: 31 [2018-12-08 13:32:48,812 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 [2018-12-08 13:32:48,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-12-08 13:32:48,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-12-08 13:32:48,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-12-08 13:32:48,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2018-12-08 13:32:48,814 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 13 [2018-12-08 13:32:48,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 13:32:48,814 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2018-12-08 13:32:48,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 13:32:48,814 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2018-12-08 13:32:48,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-08 13:32:48,814 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:32:48,815 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:32:48,815 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:32:48,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:32:48,815 INFO L82 PathProgramCache]: Analyzing trace with hash -51618866, now seen corresponding path program 1 times [2018-12-08 13:32:48,815 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 13:32:48,815 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/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 [2018-12-08 13:32:48,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:32:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:32:48,845 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 13:32:48,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:32:48,859 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 13:32:48,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:32:48,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 13:32:48,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 13:32:48,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 13:32:48,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 13:32:48,868 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 3 states. [2018-12-08 13:32:52,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:32:52,690 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2018-12-08 13:32:52,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 13:32:52,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-12-08 13:32:52,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 13:32:52,696 INFO L225 Difference]: With dead ends: 31 [2018-12-08 13:32:52,696 INFO L226 Difference]: Without dead ends: 29 [2018-12-08 13:32:52,696 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 13:32:52,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-12-08 13:32:52,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-12-08 13:32:52,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-08 13:32:52,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2018-12-08 13:32:52,698 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 15 [2018-12-08 13:32:52,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 13:32:52,698 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2018-12-08 13:32:52,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 13:32:52,698 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2018-12-08 13:32:52,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-08 13:32:52,698 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:32:52,699 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:32:52,699 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:32:52,699 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:32:52,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1600180719, now seen corresponding path program 1 times [2018-12-08 13:32:52,699 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 13:32:52,699 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/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 [2018-12-08 13:32:52,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:32:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:32:52,727 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 13:32:52,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:32:52,739 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 13:32:52,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:32:52,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 13:32:52,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 13:32:52,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 13:32:52,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 13:32:52,748 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand 3 states. [2018-12-08 13:32:56,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:32:56,345 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2018-12-08 13:32:56,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 13:32:56,351 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-12-08 13:32:56,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 13:32:56,352 INFO L225 Difference]: With dead ends: 29 [2018-12-08 13:32:56,352 INFO L226 Difference]: Without dead ends: 25 [2018-12-08 13:32:56,352 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 [2018-12-08 13:32:56,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-12-08 13:32:56,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-12-08 13:32:56,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-08 13:32:56,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2018-12-08 13:32:56,354 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 16 [2018-12-08 13:32:56,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 13:32:56,354 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2018-12-08 13:32:56,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 13:32:56,354 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2018-12-08 13:32:56,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 13:32:56,354 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:32:56,354 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 13:32:56,355 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:32:56,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:32:56,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1137675106, now seen corresponding path program 1 times [2018-12-08 13:32:56,355 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 13:32:56,355 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/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 [2018-12-08 13:32:56,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:32:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:32:56,526 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 13:32:56,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:32:56,543 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 13:32:56,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:32:56,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 13:32:56,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 13:32:56,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 13:32:56,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 13:32:56,553 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 3 states. [2018-12-08 13:32:58,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:32:58,570 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2018-12-08 13:32:58,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 13:32:58,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-12-08 13:32:58,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 13:32:58,577 INFO L225 Difference]: With dead ends: 25 [2018-12-08 13:32:58,577 INFO L226 Difference]: Without dead ends: 23 [2018-12-08 13:32:58,577 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 [2018-12-08 13:32:58,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-12-08 13:32:58,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-12-08 13:32:58,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-08 13:32:58,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2018-12-08 13:32:58,579 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 19 [2018-12-08 13:32:58,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 13:32:58,579 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2018-12-08 13:32:58,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 13:32:58,579 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2018-12-08 13:32:58,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 13:32:58,580 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 13:32:58,580 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] [2018-12-08 13:32:58,580 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 13:32:58,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 13:32:58,580 INFO L82 PathProgramCache]: Analyzing trace with hash -888025949, now seen corresponding path program 1 times [2018-12-08 13:32:58,580 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 13:32:58,580 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/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 [2018-12-08 13:32:58,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 13:33:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 13:33:00,718 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 13:33:02,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 13:33:02,264 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 13:33:02,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 13:33:02,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 13:33:02,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 13:33:02,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 13:33:02,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 13:33:02,275 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 3 states. [2018-12-08 13:33:02,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 13:33:02,511 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2018-12-08 13:33:02,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 13:33:02,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-12-08 13:33:02,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 13:33:02,520 INFO L225 Difference]: With dead ends: 23 [2018-12-08 13:33:02,520 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 13:33:02,521 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 13:33:02,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 13:33:02,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 13:33:02,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 13:33:02,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 13:33:02,521 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-12-08 13:33:02,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 13:33:02,521 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 13:33:02,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 13:33:02,521 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 13:33:02,522 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 13:33:02,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 13:33:02,552 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-08 13:33:02,552 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 13:33:02,552 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 13:33:02,552 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 13:33:02,552 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 13:33:02,552 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 13:33:02,552 INFO L448 ceAbstractionStarter]: For program point L382(line 382) no Hoare annotation was computed. [2018-12-08 13:33:02,552 INFO L448 ceAbstractionStarter]: For program point L382-2(lines 365 390) no Hoare annotation was computed. [2018-12-08 13:33:02,552 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 364 390) no Hoare annotation was computed. [2018-12-08 13:33:02,552 INFO L448 ceAbstractionStarter]: For program point L374(line 374) no Hoare annotation was computed. [2018-12-08 13:33:02,553 INFO L448 ceAbstractionStarter]: For program point L374-2(line 374) no Hoare annotation was computed. [2018-12-08 13:33:02,553 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 374) no Hoare annotation was computed. [2018-12-08 13:33:02,553 INFO L448 ceAbstractionStarter]: For program point L383(line 383) no Hoare annotation was computed. [2018-12-08 13:33:02,553 INFO L448 ceAbstractionStarter]: For program point L383-2(lines 365 390) no Hoare annotation was computed. [2018-12-08 13:33:02,553 INFO L448 ceAbstractionStarter]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 388) no Hoare annotation was computed. [2018-12-08 13:33:02,553 INFO L448 ceAbstractionStarter]: For program point L384(line 384) no Hoare annotation was computed. [2018-12-08 13:33:02,553 INFO L448 ceAbstractionStarter]: For program point L384-2(lines 365 390) no Hoare annotation was computed. [2018-12-08 13:33:02,553 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 378) no Hoare annotation was computed. [2018-12-08 13:33:02,553 INFO L448 ceAbstractionStarter]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2018-12-08 13:33:02,553 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 364 390) no Hoare annotation was computed. [2018-12-08 13:33:02,553 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 381) no Hoare annotation was computed. [2018-12-08 13:33:02,553 INFO L448 ceAbstractionStarter]: For program point L385(line 385) no Hoare annotation was computed. [2018-12-08 13:33:02,553 INFO L448 ceAbstractionStarter]: For program point L385-2(line 385) no Hoare annotation was computed. [2018-12-08 13:33:02,553 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 364 390) the Hoare annotation is: true [2018-12-08 13:33:02,554 INFO L448 ceAbstractionStarter]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 382) no Hoare annotation was computed. [2018-12-08 13:33:02,554 INFO L448 ceAbstractionStarter]: For program point L377(line 377) no Hoare annotation was computed. [2018-12-08 13:33:02,554 INFO L448 ceAbstractionStarter]: For program point L377-1(line 377) no Hoare annotation was computed. [2018-12-08 13:33:02,554 INFO L448 ceAbstractionStarter]: For program point L377-3(lines 365 390) no Hoare annotation was computed. [2018-12-08 13:33:02,554 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 380) no Hoare annotation was computed. [2018-12-08 13:33:02,554 INFO L448 ceAbstractionStarter]: For program point L378(line 378) no Hoare annotation was computed. [2018-12-08 13:33:02,554 INFO L448 ceAbstractionStarter]: For program point L378-2(lines 365 390) no Hoare annotation was computed. [2018-12-08 13:33:02,554 INFO L448 ceAbstractionStarter]: For program point L370(line 370) no Hoare annotation was computed. [2018-12-08 13:33:02,554 INFO L448 ceAbstractionStarter]: For program point L370-1(line 370) no Hoare annotation was computed. [2018-12-08 13:33:02,554 INFO L448 ceAbstractionStarter]: For program point L370-3(line 370) no Hoare annotation was computed. [2018-12-08 13:33:02,554 INFO L448 ceAbstractionStarter]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 383) no Hoare annotation was computed. [2018-12-08 13:33:02,554 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 373) no Hoare annotation was computed. [2018-12-08 13:33:02,554 INFO L448 ceAbstractionStarter]: For program point L379(line 379) no Hoare annotation was computed. [2018-12-08 13:33:02,555 INFO L448 ceAbstractionStarter]: For program point L379-2(lines 365 390) no Hoare annotation was computed. [2018-12-08 13:33:02,555 INFO L448 ceAbstractionStarter]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 385) no Hoare annotation was computed. [2018-12-08 13:33:02,555 INFO L448 ceAbstractionStarter]: For program point L388(line 388) no Hoare annotation was computed. [2018-12-08 13:33:02,555 INFO L448 ceAbstractionStarter]: For program point L388-1(line 388) no Hoare annotation was computed. [2018-12-08 13:33:02,555 INFO L448 ceAbstractionStarter]: For program point L388-3(line 388) no Hoare annotation was computed. [2018-12-08 13:33:02,555 INFO L448 ceAbstractionStarter]: For program point L380(line 380) no Hoare annotation was computed. [2018-12-08 13:33:02,555 INFO L448 ceAbstractionStarter]: For program point L380-2(lines 365 390) no Hoare annotation was computed. [2018-12-08 13:33:02,555 INFO L448 ceAbstractionStarter]: For program point L381(line 381) no Hoare annotation was computed. [2018-12-08 13:33:02,555 INFO L448 ceAbstractionStarter]: For program point L381-2(lines 365 390) no Hoare annotation was computed. [2018-12-08 13:33:02,555 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 370) no Hoare annotation was computed. [2018-12-08 13:33:02,555 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 379) no Hoare annotation was computed. [2018-12-08 13:33:02,555 INFO L448 ceAbstractionStarter]: For program point L373(line 373) no Hoare annotation was computed. [2018-12-08 13:33:02,555 INFO L448 ceAbstractionStarter]: For program point L373-1(line 373) no Hoare annotation was computed. [2018-12-08 13:33:02,556 INFO L448 ceAbstractionStarter]: For program point L373-3(lines 365 390) no Hoare annotation was computed. [2018-12-08 13:33:02,556 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 377) no Hoare annotation was computed. [2018-12-08 13:33:02,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 01:33:02 BoogieIcfgContainer [2018-12-08 13:33:02,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 13:33:02,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 13:33:02,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 13:33:02,559 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 13:33:02,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 01:32:26" (3/4) ... [2018-12-08 13:33:02,561 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 13:33:02,565 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 13:33:02,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 13:33:02,568 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-08 13:33:02,569 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 13:33:02,569 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 13:33:02,601 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a39e94e6-c551-4729-90bb-845a2444577c/bin-2019/uautomizer/witness.graphml [2018-12-08 13:33:02,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 13:33:02,602 INFO L168 Benchmark]: Toolchain (without parser) took 44036.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 939.3 MB in the beginning and 935.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 145.4 MB. Max. memory is 11.5 GB. [2018-12-08 13:33:02,603 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 13:33:02,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 562.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -197.6 MB). Peak memory consumption was 126.3 MB. Max. memory is 11.5 GB. [2018-12-08 13:33:02,603 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.27 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-08 13:33:02,604 INFO L168 Benchmark]: Boogie Preprocessor took 15.36 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. [2018-12-08 13:33:02,604 INFO L168 Benchmark]: RCFGBuilder took 7056.37 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-12-08 13:33:02,604 INFO L168 Benchmark]: TraceAbstraction took 36335.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.0 MB in the end (delta: 168.1 MB). Peak memory consumption was 168.1 MB. Max. memory is 11.5 GB. [2018-12-08 13:33:02,605 INFO L168 Benchmark]: Witness Printer took 42.35 ms. Allocated memory is still 1.2 GB. Free memory was 941.0 MB in the beginning and 935.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 11.5 GB. [2018-12-08 13:33:02,606 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 562.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -197.6 MB). Peak memory consumption was 126.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.27 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.36 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 7056.37 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 36335.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.0 MB in the end (delta: 168.1 MB). Peak memory consumption was 168.1 MB. Max. memory is 11.5 GB. * Witness Printer took 42.35 ms. Allocated memory is still 1.2 GB. Free memory was 941.0 MB in the beginning and 935.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 383]: 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: 373]: 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: 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: 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: 380]: 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: 379]: 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, 36.2s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 31.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 180 SDtfs, 190 SDslu, 75 SDs, 0 SdLazy, 122 SolverSat, 5 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 30.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 97 SyntacticMatches, 6 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s 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, 2.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 9348 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...