./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float_lib2_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float_lib2_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 579faea91306b70f4f1704c1b6463ea271867143 .............................................................................................................................................................................. 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_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float_lib2_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 579faea91306b70f4f1704c1b6463ea271867143 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:30:41,088 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:30:41,089 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:30:41,095 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:30:41,096 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:30:41,096 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:30:41,097 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:30:41,098 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:30:41,099 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:30:41,100 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:30:41,101 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:30:41,101 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:30:41,101 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:30:41,102 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:30:41,102 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:30:41,103 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:30:41,103 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:30:41,104 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:30:41,105 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:30:41,106 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:30:41,107 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:30:41,108 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:30:41,109 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:30:41,110 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:30:41,110 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:30:41,110 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:30:41,111 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:30:41,112 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:30:41,112 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:30:41,113 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:30:41,113 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:30:41,113 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:30:41,114 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:30:41,114 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:30:41,114 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:30:41,115 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:30:41,115 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 13:30:41,126 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:30:41,126 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:30:41,127 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:30:41,127 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:30:41,127 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:30:41,127 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:30:41,127 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:30:41,127 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:30:41,127 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:30:41,127 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:30:41,128 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:30:41,128 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:30:41,128 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:30:41,128 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:30:41,128 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:30:41,129 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:30:41,129 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:30:41,129 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:30:41,129 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:30:41,129 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:30:41,129 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:30:41,129 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:30:41,130 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:30:41,130 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:30:41,130 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:30:41,130 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:30:41,130 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:30:41,130 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:30:41,130 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:30:41,130 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:30:41,131 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:30:41,131 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:30:41,131 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:30:41,131 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:30:41,131 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan 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 -> Taipan 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 -> 579faea91306b70f4f1704c1b6463ea271867143 [2018-11-10 13:30:41,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:30:41,166 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:30:41,168 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:30:41,169 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:30:41,170 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:30:41,170 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float_lib2_true-unreach-call.i [2018-11-10 13:30:41,215 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/data/35626fe0d/edf47b5e600d4c48a789605849af7f0c/FLAGf2c274951 [2018-11-10 13:30:41,571 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:30:41,571 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/sv-benchmarks/c/floats-cbmc-regression/float_lib2_true-unreach-call.i [2018-11-10 13:30:41,579 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/data/35626fe0d/edf47b5e600d4c48a789605849af7f0c/FLAGf2c274951 [2018-11-10 13:30:41,591 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/data/35626fe0d/edf47b5e600d4c48a789605849af7f0c [2018-11-10 13:30:41,593 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:30:41,594 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:30:41,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:30:41,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:30:41,598 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:30:41,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:30:41" (1/1) ... [2018-11-10 13:30:41,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c69ebec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:30:41, skipping insertion in model container [2018-11-10 13:30:41,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:30:41" (1/1) ... [2018-11-10 13:30:41,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:30:41,643 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:30:41,931 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:838) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1349) 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:995) 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:2169) 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:662) 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:2169) 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:2169) 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:1511) 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:960) 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:364) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1371) 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:3316) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2119) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:537) 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:188) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-10 13:30:41,934 INFO L168 Benchmark]: Toolchain (without parser) took 340.41 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 946.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:30:41,935 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:30:41,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.40 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 946.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:30:41,937 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 338.40 ms. Allocated memory is still 1.0 GB. Free memory was 957.5 MB in the beginning and 946.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 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:838) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:30:43,117 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:30:43,118 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:30:43,126 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:30:43,126 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:30:43,126 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:30:43,127 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:30:43,128 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:30:43,129 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:30:43,130 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:30:43,131 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:30:43,131 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:30:43,132 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:30:43,132 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:30:43,133 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:30:43,134 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:30:43,134 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:30:43,136 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:30:43,137 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:30:43,139 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:30:43,140 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:30:43,140 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:30:43,142 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:30:43,142 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:30:43,143 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:30:43,143 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:30:43,144 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:30:43,144 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:30:43,145 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:30:43,146 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:30:43,146 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:30:43,147 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:30:43,147 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:30:43,147 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:30:43,148 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:30:43,148 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:30:43,148 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 13:30:43,159 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:30:43,159 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:30:43,160 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:30:43,160 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:30:43,160 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:30:43,160 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:30:43,160 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:30:43,160 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:30:43,161 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:30:43,161 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:30:43,161 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:30:43,161 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:30:43,161 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:30:43,161 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:30:43,161 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:30:43,161 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 13:30:43,163 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 13:30:43,163 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:30:43,163 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:30:43,163 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:30:43,163 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:30:43,163 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:30:43,163 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:30:43,164 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:30:43,164 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:30:43,164 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:30:43,164 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:30:43,164 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:30:43,164 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 13:30:43,164 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:30:43,164 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 13:30:43,164 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 13:30:43,164 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_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan 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 -> Taipan 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 -> 579faea91306b70f4f1704c1b6463ea271867143 [2018-11-10 13:30:43,197 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:30:43,205 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:30:43,207 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:30:43,208 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:30:43,208 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:30:43,209 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float_lib2_true-unreach-call.i [2018-11-10 13:30:43,244 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/data/555ecc1e6/a7c5582211334e4f9bd7390511b3013e/FLAGa33e2993e [2018-11-10 13:30:43,581 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:30:43,582 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/sv-benchmarks/c/floats-cbmc-regression/float_lib2_true-unreach-call.i [2018-11-10 13:30:43,590 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/data/555ecc1e6/a7c5582211334e4f9bd7390511b3013e/FLAGa33e2993e [2018-11-10 13:30:43,598 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/data/555ecc1e6/a7c5582211334e4f9bd7390511b3013e [2018-11-10 13:30:43,600 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:30:43,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:30:43,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:30:43,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:30:43,604 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:30:43,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:30:43" (1/1) ... [2018-11-10 13:30:43,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@634d1ddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:30:43, skipping insertion in model container [2018-11-10 13:30:43,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:30:43" (1/1) ... [2018-11-10 13:30:43,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:30:43,645 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:30:44,017 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:30:44,019 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:30:44,055 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:30:44,198 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:30:44,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:30:44 WrapperNode [2018-11-10 13:30:44,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:30:44,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:30:44,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:30:44,199 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:30:44,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:30:44" (1/1) ... [2018-11-10 13:30:44,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:30:44" (1/1) ... [2018-11-10 13:30:44,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:30:44,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:30:44,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:30:44,224 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:30:44,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:30:44" (1/1) ... [2018-11-10 13:30:44,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:30:44" (1/1) ... [2018-11-10 13:30:44,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:30:44" (1/1) ... [2018-11-10 13:30:44,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:30:44" (1/1) ... [2018-11-10 13:30:44,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:30:44" (1/1) ... [2018-11-10 13:30:44,236 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:30:44" (1/1) ... [2018-11-10 13:30:44,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:30:44" (1/1) ... [2018-11-10 13:30:44,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:30:44,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:30:44,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:30:44,240 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:30:44,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:30:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:30:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:30:44,310 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:30:44,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:30:44,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:30:44,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:30:44,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:30:44,973 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:30:44,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:30:44 BoogieIcfgContainer [2018-11-10 13:30:44,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:30:44,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:30:44,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:30:44,976 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:30:44,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:30:43" (1/3) ... [2018-11-10 13:30:44,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79bbf44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:30:44, skipping insertion in model container [2018-11-10 13:30:44,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:30:44" (2/3) ... [2018-11-10 13:30:44,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79bbf44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:30:44, skipping insertion in model container [2018-11-10 13:30:44,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:30:44" (3/3) ... [2018-11-10 13:30:44,978 INFO L112 eAbstractionObserver]: Analyzing ICFG float_lib2_true-unreach-call.i [2018-11-10 13:30:44,983 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:30:44,988 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-11-10 13:30:44,998 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-11-10 13:30:45,019 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:30:45,019 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:30:45,019 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:30:45,019 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:30:45,019 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:30:45,019 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:30:45,019 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:30:45,019 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:30:45,020 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:30:45,029 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-11-10 13:30:45,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 13:30:45,032 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:30:45,033 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:30:45,035 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:30:45,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:30:45,039 INFO L82 PathProgramCache]: Analyzing trace with hash 790592088, now seen corresponding path program 1 times [2018-11-10 13:30:45,042 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:30:45,042 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 13:30:45,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:30:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:30:45,070 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:30:45,331 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 5 [2018-11-10 13:30:45,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:30:45,334 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:30:45,343 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:30:45,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:30:45,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:30:45,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:30:45,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:30:45,355 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 4 states. [2018-11-10 13:30:45,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:30:45,415 INFO L93 Difference]: Finished difference Result 78 states and 107 transitions. [2018-11-10 13:30:45,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:30:45,417 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-10 13:30:45,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:30:45,423 INFO L225 Difference]: With dead ends: 78 [2018-11-10 13:30:45,423 INFO L226 Difference]: Without dead ends: 29 [2018-11-10 13:30:45,425 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:30:45,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-10 13:30:45,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-11-10 13:30:45,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-10 13:30:45,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2018-11-10 13:30:45,447 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 8 [2018-11-10 13:30:45,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:30:45,448 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2018-11-10 13:30:45,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:30:45,448 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2018-11-10 13:30:45,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 13:30:45,448 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:30:45,449 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:30:45,449 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:30:45,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:30:45,449 INFO L82 PathProgramCache]: Analyzing trace with hash -450087620, now seen corresponding path program 1 times [2018-11-10 13:30:45,449 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:30:45,450 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 13:30:45,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:30:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:30:45,464 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:30:45,656 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 5 [2018-11-10 13:30:45,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:30:45,658 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:30:45,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:30:45,666 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:30:45,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:30:45,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:30:45,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:30:45,668 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand 4 states. [2018-11-10 13:30:45,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:30:45,722 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2018-11-10 13:30:45,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:30:45,722 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-10 13:30:45,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:30:45,723 INFO L225 Difference]: With dead ends: 29 [2018-11-10 13:30:45,723 INFO L226 Difference]: Without dead ends: 27 [2018-11-10 13:30:45,724 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:30:45,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-10 13:30:45,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-10 13:30:45,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-10 13:30:45,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-11-10 13:30:45,726 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 10 [2018-11-10 13:30:45,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:30:45,727 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-11-10 13:30:45,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:30:45,727 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-11-10 13:30:45,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 13:30:45,727 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:30:45,727 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:30:45,728 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:30:45,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:30:45,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1257621952, now seen corresponding path program 1 times [2018-11-10 13:30:45,728 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:30:45,729 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 13:30:45,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:30:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:30:45,755 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:30:45,924 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 5 [2018-11-10 13:30:45,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:30:45,926 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:30:45,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:30:45,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:30:45,933 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:30:45,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:30:45,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:30:45,934 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 4 states. [2018-11-10 13:30:45,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:30:45,961 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-11-10 13:30:45,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:30:45,962 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-10 13:30:45,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:30:45,963 INFO L225 Difference]: With dead ends: 27 [2018-11-10 13:30:45,963 INFO L226 Difference]: Without dead ends: 25 [2018-11-10 13:30:45,963 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:30:45,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-10 13:30:45,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-10 13:30:45,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-10 13:30:45,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2018-11-10 13:30:45,966 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 12 [2018-11-10 13:30:45,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:30:45,967 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2018-11-10 13:30:45,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:30:45,967 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2018-11-10 13:30:45,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 13:30:45,967 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:30:45,967 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:30:45,968 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:30:45,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:30:45,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1689014244, now seen corresponding path program 1 times [2018-11-10 13:30:45,968 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:30:45,968 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-10 13:30:45,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:30:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:30:45,997 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:30:46,141 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 5 [2018-11-10 13:30:46,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:30:46,142 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:30:46,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:30:46,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:30:46,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:30:46,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:30:46,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:30:46,152 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 4 states. [2018-11-10 13:30:46,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:30:46,181 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2018-11-10 13:30:46,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:30:46,183 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-10 13:30:46,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:30:46,183 INFO L225 Difference]: With dead ends: 25 [2018-11-10 13:30:46,183 INFO L226 Difference]: Without dead ends: 23 [2018-11-10 13:30:46,184 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:30:46,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-10 13:30:46,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-10 13:30:46,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-10 13:30:46,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2018-11-10 13:30:46,187 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 14 [2018-11-10 13:30:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:30:46,187 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2018-11-10 13:30:46,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:30:46,188 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2018-11-10 13:30:46,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 13:30:46,188 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:30:46,188 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:30:46,189 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:30:46,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:30:46,189 INFO L82 PathProgramCache]: Analyzing trace with hash -354820184, now seen corresponding path program 1 times [2018-11-10 13:30:46,189 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:30:46,189 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-10 13:30:46,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:30:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:30:46,208 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:30:46,344 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 5 [2018-11-10 13:30:46,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:30:46,346 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:30:46,357 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:30:46,357 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:30:46,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:30:46,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:30:46,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:30:46,358 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 4 states. [2018-11-10 13:30:46,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:30:46,383 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2018-11-10 13:30:46,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:30:46,383 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-11-10 13:30:46,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:30:46,384 INFO L225 Difference]: With dead ends: 23 [2018-11-10 13:30:46,384 INFO L226 Difference]: Without dead ends: 21 [2018-11-10 13:30:46,384 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:30:46,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-10 13:30:46,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-10 13:30:46,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 13:30:46,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2018-11-10 13:30:46,386 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2018-11-10 13:30:46,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:30:46,386 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2018-11-10 13:30:46,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:30:46,386 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2018-11-10 13:30:46,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 13:30:46,386 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:30:46,386 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:30:46,387 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:30:46,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:30:46,387 INFO L82 PathProgramCache]: Analyzing trace with hash 767080891, now seen corresponding path program 1 times [2018-11-10 13:30:46,387 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:30:46,387 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-10 13:30:46,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:30:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:30:46,402 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:30:46,597 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 5 [2018-11-10 13:30:46,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:30:46,606 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:30:46,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:30:46,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 13:30:46,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 13:30:46,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 13:30:46,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:30:46,619 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 5 states. [2018-11-10 13:30:46,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:30:46,651 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2018-11-10 13:30:46,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 13:30:46,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-11-10 13:30:46,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:30:46,651 INFO L225 Difference]: With dead ends: 21 [2018-11-10 13:30:46,651 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 13:30:46,652 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-10 13:30:46,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 13:30:46,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 13:30:46,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 13:30:46,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 13:30:46,653 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2018-11-10 13:30:46,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:30:46,653 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:30:46,653 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 13:30:46,653 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:30:46,654 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 13:30:46,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 13:30:46,680 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 13:30:46,681 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:30:46,681 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:30:46,681 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 13:30:46,681 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:30:46,681 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:30:46,681 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 362 374) no Hoare annotation was computed. [2018-11-10 13:30:46,681 INFO L425 ceAbstractionStarter]: For program point L366-1(line 366) no Hoare annotation was computed. [2018-11-10 13:30:46,681 INFO L425 ceAbstractionStarter]: For program point L366-3(line 366) no Hoare annotation was computed. [2018-11-10 13:30:46,681 INFO L425 ceAbstractionStarter]: For program point L366-4(line 366) no Hoare annotation was computed. [2018-11-10 13:30:46,681 INFO L425 ceAbstractionStarter]: For program point L366-5(line 366) no Hoare annotation was computed. [2018-11-10 13:30:46,681 INFO L425 ceAbstractionStarter]: For program point L366-7(lines 363 374) no Hoare annotation was computed. [2018-11-10 13:30:46,682 INFO L425 ceAbstractionStarter]: For program point L367-1(line 367) no Hoare annotation was computed. [2018-11-10 13:30:46,682 INFO L425 ceAbstractionStarter]: For program point L367-3(line 367) no Hoare annotation was computed. [2018-11-10 13:30:46,682 INFO L425 ceAbstractionStarter]: For program point L367-4(line 367) no Hoare annotation was computed. [2018-11-10 13:30:46,682 INFO L425 ceAbstractionStarter]: For program point L367-5(line 367) no Hoare annotation was computed. [2018-11-10 13:30:46,682 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 365) no Hoare annotation was computed. [2018-11-10 13:30:46,682 INFO L425 ceAbstractionStarter]: For program point L367-7(lines 363 374) no Hoare annotation was computed. [2018-11-10 13:30:46,682 INFO L425 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 372) no Hoare annotation was computed. [2018-11-10 13:30:46,682 INFO L425 ceAbstractionStarter]: For program point L368-1(line 368) no Hoare annotation was computed. [2018-11-10 13:30:46,682 INFO L425 ceAbstractionStarter]: For program point L368-3(line 368) no Hoare annotation was computed. [2018-11-10 13:30:46,682 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 362 374) no Hoare annotation was computed. [2018-11-10 13:30:46,682 INFO L425 ceAbstractionStarter]: For program point L368-4(line 368) no Hoare annotation was computed. [2018-11-10 13:30:46,683 INFO L425 ceAbstractionStarter]: For program point L368-5(line 368) no Hoare annotation was computed. [2018-11-10 13:30:46,683 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 367) no Hoare annotation was computed. [2018-11-10 13:30:46,683 INFO L425 ceAbstractionStarter]: For program point L368-7(lines 363 374) no Hoare annotation was computed. [2018-11-10 13:30:46,683 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 362 374) the Hoare annotation is: true [2018-11-10 13:30:46,683 INFO L425 ceAbstractionStarter]: For program point L369-1(line 369) no Hoare annotation was computed. [2018-11-10 13:30:46,683 INFO L425 ceAbstractionStarter]: For program point L369-3(line 369) no Hoare annotation was computed. [2018-11-10 13:30:46,683 INFO L425 ceAbstractionStarter]: For program point L369-4(line 369) no Hoare annotation was computed. [2018-11-10 13:30:46,683 INFO L425 ceAbstractionStarter]: For program point L369-5(line 369) no Hoare annotation was computed. [2018-11-10 13:30:46,683 INFO L425 ceAbstractionStarter]: For program point L369-7(lines 363 374) no Hoare annotation was computed. [2018-11-10 13:30:46,683 INFO L425 ceAbstractionStarter]: For program point L370(line 370) no Hoare annotation was computed. [2018-11-10 13:30:46,683 INFO L425 ceAbstractionStarter]: For program point L370-2(lines 363 374) no Hoare annotation was computed. [2018-11-10 13:30:46,683 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 366) no Hoare annotation was computed. [2018-11-10 13:30:46,683 INFO L425 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 369) no Hoare annotation was computed. [2018-11-10 13:30:46,684 INFO L425 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 370) no Hoare annotation was computed. [2018-11-10 13:30:46,684 INFO L425 ceAbstractionStarter]: For program point L371-1(line 371) no Hoare annotation was computed. [2018-11-10 13:30:46,684 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 368) no Hoare annotation was computed. [2018-11-10 13:30:46,684 INFO L425 ceAbstractionStarter]: For program point L371-3(line 371) no Hoare annotation was computed. [2018-11-10 13:30:46,684 INFO L425 ceAbstractionStarter]: For program point L371-4(line 371) no Hoare annotation was computed. [2018-11-10 13:30:46,684 INFO L425 ceAbstractionStarter]: For program point L372(line 372) no Hoare annotation was computed. [2018-11-10 13:30:46,684 INFO L425 ceAbstractionStarter]: For program point L372-1(line 372) no Hoare annotation was computed. [2018-11-10 13:30:46,684 INFO L425 ceAbstractionStarter]: For program point L372-3(line 372) no Hoare annotation was computed. [2018-11-10 13:30:46,684 INFO L425 ceAbstractionStarter]: For program point L365(line 365) no Hoare annotation was computed. [2018-11-10 13:30:46,684 INFO L425 ceAbstractionStarter]: For program point L365-2(line 365) no Hoare annotation was computed. [2018-11-10 13:30:46,684 INFO L425 ceAbstractionStarter]: For program point L365-4(line 365) no Hoare annotation was computed. [2018-11-10 13:30:46,684 INFO L425 ceAbstractionStarter]: For program point L365-5(line 365) no Hoare annotation was computed. [2018-11-10 13:30:46,684 INFO L425 ceAbstractionStarter]: For program point L365-6(line 365) no Hoare annotation was computed. [2018-11-10 13:30:46,685 INFO L425 ceAbstractionStarter]: For program point L365-8(lines 363 374) no Hoare annotation was computed. [2018-11-10 13:30:46,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:30:46 BoogieIcfgContainer [2018-11-10 13:30:46,687 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:30:46,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:30:46,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:30:46,688 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:30:46,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:30:44" (3/4) ... [2018-11-10 13:30:46,690 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 13:30:46,694 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 13:30:46,695 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 13:30:46,698 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2018-11-10 13:30:46,698 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 13:30:46,698 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 13:30:46,738 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ffb691e0-fc3d-4d27-a609-1cb221d378e0/bin-2019/utaipan/witness.graphml [2018-11-10 13:30:46,738 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:30:46,739 INFO L168 Benchmark]: Toolchain (without parser) took 3138.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.9 MB). Free memory was 943.8 MB in the beginning and 1.2 GB in the end (delta: -206.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:30:46,739 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:30:46,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.32 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 836.5 MB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:30:46,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.39 ms. Allocated memory is still 1.0 GB. Free memory was 836.5 MB in the beginning and 831.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:30:46,740 INFO L168 Benchmark]: Boogie Preprocessor took 15.06 ms. Allocated memory is still 1.0 GB. Free memory is still 831.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:30:46,740 INFO L168 Benchmark]: RCFGBuilder took 734.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 831.1 MB in the beginning and 1.1 GB in the end (delta: -288.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:30:46,741 INFO L168 Benchmark]: TraceAbstraction took 1713.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -37.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:30:46,741 INFO L168 Benchmark]: Witness Printer took 50.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:30:46,743 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 597.32 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 836.5 MB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.39 ms. Allocated memory is still 1.0 GB. Free memory was 836.5 MB in the beginning and 831.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.06 ms. Allocated memory is still 1.0 GB. Free memory is still 831.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 734.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 831.1 MB in the beginning and 1.1 GB in the end (delta: -288.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1713.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -37.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * Witness Printer took 50.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 366]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 365]: 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: 368]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 369]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 367]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 372]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 50 locations, 7 error locations. SAFE Result, 1.6s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 95 SDtfs, 74 SDslu, 131 SDs, 0 SdLazy, 97 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 6 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, 0.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 3512 SizeOfPredicates, 6 NumberOfNonLiveVariables, 116 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...