./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43afe140f1d8923ae3cc82938867c285a58a3757 ....................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43afe140f1d8923ae3cc82938867c285a58a3757 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:24:08,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:24:08,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:24:08,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:24:08,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:24:08,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:24:08,693 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:24:08,696 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:24:08,698 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:24:08,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:24:08,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:24:08,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:24:08,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:24:08,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:24:08,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:24:08,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:24:08,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:24:08,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:24:08,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:24:08,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:24:08,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:24:08,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:24:08,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:24:08,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:24:08,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:24:08,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:24:08,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:24:08,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:24:08,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:24:08,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:24:08,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:24:08,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:24:08,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:24:08,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:24:08,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:24:08,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:24:08,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:24:08,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:24:08,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:24:08,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:24:08,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:24:08,751 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:24:08,778 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:24:08,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:24:08,779 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:24:08,780 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:24:08,780 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:24:08,780 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:24:08,781 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:24:08,781 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:24:08,781 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:24:08,781 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:24:08,782 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:24:08,782 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:24:08,782 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:24:08,782 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:24:08,783 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:24:08,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:24:08,784 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:24:08,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:24:08,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:24:08,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:24:08,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:24:08,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:24:08,785 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:24:08,786 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:24:08,786 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:24:08,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:24:08,786 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:24:08,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:24:08,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:24:08,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:24:08,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:08,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:24:08,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:24:08,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:24:08,788 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:24:08,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:24:08,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:24:08,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:24:08,789 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:24:08,790 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43afe140f1d8923ae3cc82938867c285a58a3757 [2021-10-11 02:24:09,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:24:09,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:24:09,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:24:09,092 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:24:09,093 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:24:09,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2021-10-11 02:24:09,179 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/data/eea65c679/e29033fd031f4ac49e8cd781780ca145/FLAGd9ce3a8ba [2021-10-11 02:24:09,730 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:24:09,731 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2021-10-11 02:24:09,757 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/data/eea65c679/e29033fd031f4ac49e8cd781780ca145/FLAGd9ce3a8ba [2021-10-11 02:24:10,019 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/data/eea65c679/e29033fd031f4ac49e8cd781780ca145 [2021-10-11 02:24:10,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:24:10,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:24:10,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:10,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:24:10,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:24:10,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16eb3be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:10, skipping insertion in model container [2021-10-11 02:24:10,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:10" (1/1) ... [2021-10-11 02:24:10,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:24:10,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:24:10,738 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1710) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1402) 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:1081) 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:2343) 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:706) 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:2343) 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:707) 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:706) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1409) 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:1353) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1046) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1424) 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:3213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2293) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-11 02:24:10,745 INFO L168 Benchmark]: Toolchain (without parser) took 719.06 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 51.7 MB in the beginning and 87.6 MB in the end (delta: -35.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:10,747 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 88.1 MB. Free memory was 58.0 MB in the beginning and 58.0 MB in the end (delta: 28.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:10,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.60 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 51.6 MB in the beginning and 87.6 MB in the end (delta: -36.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:10,749 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 88.1 MB. Free memory was 58.0 MB in the beginning and 58.0 MB in the end (delta: 28.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 716.60 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 51.6 MB in the beginning and 87.6 MB in the end (delta: -36.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: 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:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:24:13,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:24:13,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:24:13,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:24:13,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:24:13,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:24:13,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:24:13,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:24:13,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:24:13,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:24:13,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:24:13,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:24:13,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:24:13,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:24:13,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:24:13,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:24:13,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:24:13,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:24:13,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:24:13,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:24:13,210 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:24:13,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:24:13,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:24:13,215 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:24:13,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:24:13,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:24:13,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:24:13,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:24:13,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:24:13,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:24:13,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:24:13,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:24:13,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:24:13,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:24:13,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:24:13,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:24:13,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:24:13,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:24:13,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:24:13,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:24:13,231 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:24:13,232 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:24:13,256 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:24:13,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:24:13,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:24:13,257 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:24:13,257 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:24:13,258 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:24:13,258 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:24:13,258 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:24:13,258 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:24:13,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:24:13,259 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:24:13,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:24:13,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:24:13,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:24:13,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:24:13,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:24:13,261 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:24:13,261 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:24:13,261 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:24:13,261 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:24:13,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:24:13,262 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:24:13,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:24:13,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:24:13,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:24:13,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:24:13,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:13,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:24:13,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:24:13,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:24:13,264 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:24:13,264 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:24:13,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:24:13,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:24:13,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:24:13,265 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43afe140f1d8923ae3cc82938867c285a58a3757 [2021-10-11 02:24:13,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:24:13,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:24:13,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:24:13,752 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:24:13,753 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:24:13,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2021-10-11 02:24:13,832 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/data/d993be05f/0f388615965f4581bbd199024d9181e3/FLAG47802193c [2021-10-11 02:24:14,592 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:24:14,592 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2021-10-11 02:24:14,616 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/data/d993be05f/0f388615965f4581bbd199024d9181e3/FLAG47802193c [2021-10-11 02:24:14,787 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/data/d993be05f/0f388615965f4581bbd199024d9181e3 [2021-10-11 02:24:14,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:24:14,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:24:14,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:14,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:24:14,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:24:14,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:14" (1/1) ... [2021-10-11 02:24:14,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f299a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:14, skipping insertion in model container [2021-10-11 02:24:14,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:14" (1/1) ... [2021-10-11 02:24:14,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:24:14,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:24:15,422 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40610,40623] [2021-10-11 02:24:15,438 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40902,40915] [2021-10-11 02:24:15,439 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40949,40962] [2021-10-11 02:24:15,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:15,457 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:24:15,485 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40610,40623] [2021-10-11 02:24:15,490 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40902,40915] [2021-10-11 02:24:15,491 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/sv-benchmarks/c/floats-cbmc-regression/float-div1.i[40949,40962] [2021-10-11 02:24:15,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:15,818 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:24:15,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:15 WrapperNode [2021-10-11 02:24:15,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:15,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:15,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:24:15,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:24:15,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:15" (1/1) ... [2021-10-11 02:24:15,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:15" (1/1) ... [2021-10-11 02:24:15,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:15,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:24:15,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:24:15,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:24:15,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:15" (1/1) ... [2021-10-11 02:24:15,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:15" (1/1) ... [2021-10-11 02:24:15,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:15" (1/1) ... [2021-10-11 02:24:15,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:15" (1/1) ... [2021-10-11 02:24:15,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:15" (1/1) ... [2021-10-11 02:24:15,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:15" (1/1) ... [2021-10-11 02:24:15,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:15" (1/1) ... [2021-10-11 02:24:15,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:24:15,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:24:15,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:24:15,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:24:15,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:15" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:24:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:24:15,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:24:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:24:15,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:24:20,437 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:24:20,437 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-11 02:24:20,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:20 BoogieIcfgContainer [2021-10-11 02:24:20,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:24:20,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:24:20,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:24:20,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:24:20,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:24:14" (1/3) ... [2021-10-11 02:24:20,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a20b672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:20, skipping insertion in model container [2021-10-11 02:24:20,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:15" (2/3) ... [2021-10-11 02:24:20,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a20b672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:20, skipping insertion in model container [2021-10-11 02:24:20,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:20" (3/3) ... [2021-10-11 02:24:20,448 INFO L111 eAbstractionObserver]: Analyzing ICFG float-div1.i [2021-10-11 02:24:20,462 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:24:20,466 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:24:20,478 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:24:20,503 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:24:20,503 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:24:20,503 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:24:20,503 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:24:20,503 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:24:20,504 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:24:20,504 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:24:20,504 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:24:20,517 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2021-10-11 02:24:20,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:24:20,522 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:20,523 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:24:20,523 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:20,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:20,529 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-10-11 02:24:20,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:24:20,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871314257] [2021-10-11 02:24:20,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:24:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:20,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:24:20,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:21,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:21,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:24:21,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871314257] [2021-10-11 02:24:21,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:21,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:21,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038290931] [2021-10-11 02:24:21,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:24:21,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:24:21,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:24:21,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:24:21,051 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2021-10-11 02:24:21,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:21,069 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2021-10-11 02:24:21,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:24:21,072 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2021-10-11 02:24:21,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:21,079 INFO L225 Difference]: With dead ends: 37 [2021-10-11 02:24:21,080 INFO L226 Difference]: Without dead ends: 16 [2021-10-11 02:24:21,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:24:21,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-11 02:24:21,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-11 02:24:21,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 02:24:21,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-10-11 02:24:21,113 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 6 [2021-10-11 02:24:21,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:21,114 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-10-11 02:24:21,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:24:21,114 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-10-11 02:24:21,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:24:21,115 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:21,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:24:21,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:24:21,338 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:21,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:21,339 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-10-11 02:24:21,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:24:21,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662301792] [2021-10-11 02:24:21,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:24:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:22,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 02:24:22,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:22,937 WARN L197 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 28 [2021-10-11 02:24:25,104 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_inductiveStepHunt_~startState (_ FloatingPoint 8 24))) (and (fp.isNormal ULTIMATE.start_inductiveStepHunt_~startState) (= (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode .cse0 ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) c_ULTIMATE.start_inductiveStepHunt_~oneAfter~0) (fp.lt ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)) ULTIMATE.start_inductiveStepHunt_~startState))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-11 02:24:31,320 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_inductiveStepHunt_~startState (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (not (fp.gt (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse0 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven ULTIMATE.start_inductiveStepHunt_~startState (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse1)) (fp.lt .cse1 ULTIMATE.start_inductiveStepHunt_~startState) (fp.isNormal ULTIMATE.start_inductiveStepHunt_~startState)))) is different from false [2021-10-11 02:24:33,371 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_inductiveStepHunt_~startState (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (not (fp.gt (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 67108864.0)))) (fp.div roundNearestTiesToEven .cse0 (fp.div roundNearestTiesToEven (fp.add roundNearestTiesToEven ULTIMATE.start_inductiveStepHunt_~startState (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) roundNearestTiesToEven (_ bv2 32))))) .cse1)) (fp.lt .cse1 ULTIMATE.start_inductiveStepHunt_~startState) (fp.isNormal ULTIMATE.start_inductiveStepHunt_~startState)))) is different from true [2021-10-11 02:24:33,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:33,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:24:33,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662301792] [2021-10-11 02:24:33,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:33,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:24:33,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586176349] [2021-10-11 02:24:33,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:24:33,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:24:33,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:24:33,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=12, Unknown=3, NotChecked=14, Total=42 [2021-10-11 02:24:33,375 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 7 states. [2021-10-11 02:24:33,649 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 16 [2021-10-11 02:24:38,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:38,073 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-10-11 02:24:38,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:24:38,074 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2021-10-11 02:24:38,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:38,074 INFO L225 Difference]: With dead ends: 16 [2021-10-11 02:24:38,075 INFO L226 Difference]: Without dead ends: 14 [2021-10-11 02:24:38,075 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=18, Invalid=17, Unknown=3, NotChecked=18, Total=56 [2021-10-11 02:24:38,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-11 02:24:38,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-11 02:24:38,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-11 02:24:38,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2021-10-11 02:24:38,079 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 6 [2021-10-11 02:24:38,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:38,079 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2021-10-11 02:24:38,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:24:38,079 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2021-10-11 02:24:38,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:24:38,080 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:38,080 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:38,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:24:38,299 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:38,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:38,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1929124086, now seen corresponding path program 1 times [2021-10-11 02:24:38,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:24:38,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418802736] [2021-10-11 02:24:38,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:24:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:38,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:24:38,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:38,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:38,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:24:38,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418802736] [2021-10-11 02:24:38,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:38,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:24:38,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326790635] [2021-10-11 02:24:38,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:24:38,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:24:38,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:24:38,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:24:38,999 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 3 states. [2021-10-11 02:24:42,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:42,264 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2021-10-11 02:24:42,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:24:42,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2021-10-11 02:24:42,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:42,265 INFO L225 Difference]: With dead ends: 14 [2021-10-11 02:24:42,265 INFO L226 Difference]: Without dead ends: 12 [2021-10-11 02:24:42,265 INFO L677 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 [2021-10-11 02:24:42,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-11 02:24:42,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-11 02:24:42,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-11 02:24:42,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-10-11 02:24:42,268 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2021-10-11 02:24:42,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:42,268 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-10-11 02:24:42,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:24:42,269 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-10-11 02:24:42,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:24:42,269 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:42,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:42,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:24:42,486 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:24:42,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:42,487 INFO L82 PathProgramCache]: Analyzing trace with hash 326699576, now seen corresponding path program 1 times [2021-10-11 02:24:42,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:24:42,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272327068] [2021-10-11 02:24:42,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:24:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:43,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:24:43,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:24:43,259 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-10-11 02:24:48,075 WARN L197 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 18 [2021-10-11 02:24:48,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:48,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:24:48,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272327068] [2021-10-11 02:24:48,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:48,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:24:48,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156107308] [2021-10-11 02:24:48,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:24:48,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:24:48,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:24:48,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:24:48,554 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 6 states. [2021-10-11 02:24:52,711 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 18 [2021-10-11 02:25:03,516 WARN L197 SmtUtils]: Spent 10.34 s on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2021-10-11 02:25:03,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:03,771 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2021-10-11 02:25:03,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:25:03,801 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2021-10-11 02:25:03,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:03,801 INFO L225 Difference]: With dead ends: 12 [2021-10-11 02:25:03,802 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:25:03,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:25:03,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:25:03,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:25:03,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:25:03,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:25:03,803 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-10-11 02:25:03,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:03,803 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:25:03,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:25:03,804 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:25:03,804 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:25:04,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:25:04,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:25:04,042 INFO L262 CegarLoopResult]: For program point L2-1(lines 2 4) no Hoare annotation was computed. [2021-10-11 02:25:04,042 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:25:04,042 INFO L262 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2021-10-11 02:25:04,042 INFO L262 CegarLoopResult]: For program point L384-1(line 384) no Hoare annotation was computed. [2021-10-11 02:25:04,042 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2021-10-11 02:25:04,043 INFO L265 CegarLoopResult]: At program point L399(lines 394 400) the Hoare annotation is: true [2021-10-11 02:25:04,043 INFO L262 CegarLoopResult]: For program point L391(line 391) no Hoare annotation was computed. [2021-10-11 02:25:04,043 INFO L262 CegarLoopResult]: For program point L391-1(line 391) no Hoare annotation was computed. [2021-10-11 02:25:04,043 INFO L262 CegarLoopResult]: For program point L391-3(lines 387 393) no Hoare annotation was computed. [2021-10-11 02:25:04,043 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2021-10-11 02:25:04,043 INFO L262 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2021-10-11 02:25:04,044 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:25:04,044 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:25:04,044 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:25:04,044 INFO L262 CegarLoopResult]: For program point L377(lines 377 385) no Hoare annotation was computed. [2021-10-11 02:25:04,044 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2021-10-11 02:25:04,044 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 392) no Hoare annotation was computed. [2021-10-11 02:25:04,045 INFO L262 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2021-10-11 02:25:04,045 INFO L262 CegarLoopResult]: For program point L2(lines 2 4) no Hoare annotation was computed. [2021-10-11 02:25:04,045 INFO L262 CegarLoopResult]: For program point L386(lines 386 393) no Hoare annotation was computed. [2021-10-11 02:25:04,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:25:04 BoogieIcfgContainer [2021-10-11 02:25:04,052 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:25:04,053 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:25:04,053 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:25:04,053 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:25:04,054 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:20" (3/4) ... [2021-10-11 02:25:04,057 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:25:04,067 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-11 02:25:04,068 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:25:04,068 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:25:04,068 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:25:04,115 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de41c269-745b-4694-a5ae-2a13c586a0be/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:25:04,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:25:04,123 INFO L168 Benchmark]: Toolchain (without parser) took 49329.96 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 54.5 MB in the beginning and 42.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:04,123 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 73.4 MB. Free memory is still 54.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:04,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1024.91 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 54.3 MB in the beginning and 44.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:04,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.98 ms. Allocated memory is still 92.3 MB. Free memory was 44.2 MB in the beginning and 41.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:04,129 INFO L168 Benchmark]: Boogie Preprocessor took 36.39 ms. Allocated memory is still 92.3 MB. Free memory was 41.5 MB in the beginning and 40.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:04,130 INFO L168 Benchmark]: RCFGBuilder took 4514.94 ms. Allocated memory is still 92.3 MB. Free memory was 40.0 MB in the beginning and 68.6 MB in the end (delta: -28.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:04,132 INFO L168 Benchmark]: TraceAbstraction took 43611.89 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 45.2 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:04,133 INFO L168 Benchmark]: Witness Printer took 69.28 ms. Allocated memory is still 92.3 MB. Free memory was 45.2 MB in the beginning and 42.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:04,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 73.4 MB. Free memory is still 54.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1024.91 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 54.3 MB in the beginning and 44.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.98 ms. Allocated memory is still 92.3 MB. Free memory was 44.2 MB in the beginning and 41.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.39 ms. Allocated memory is still 92.3 MB. Free memory was 41.5 MB in the beginning and 40.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4514.94 ms. Allocated memory is still 92.3 MB. Free memory was 40.0 MB in the beginning and 68.6 MB in the end (delta: -28.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 43611.89 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 45.2 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. * Witness Printer took 69.28 ms. Allocated memory is still 92.3 MB. Free memory was 45.2 MB in the beginning and 42.3 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 391]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 384]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 392]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 394]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 43.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 23.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 15 SDslu, 8 SDs, 0 SdLazy, 34 SolverSat, 0 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 11.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 16.9s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 4 QuantifiedInterpolants, 2120 SizeOfPredicates, 15 NumberOfNonLiveVariables, 133 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...