./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan --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-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan --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-a4ecdab [2020-11-30 01:59:54,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:59:54,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:59:54,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:59:54,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:59:54,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:59:54,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:59:54,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:59:54,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:59:54,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:59:54,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:59:54,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:59:54,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:59:54,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:59:54,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:59:54,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:59:54,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:59:54,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:59:54,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:59:54,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:59:54,958 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:59:54,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:59:54,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:59:54,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:59:54,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:59:54,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:59:54,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:59:54,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:59:54,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:59:54,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:59:54,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:59:54,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:59:54,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:59:54,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:59:54,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:59:54,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:59:54,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:59:54,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:59:54,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:59:54,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:59:54,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:59:54,982 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:59:55,006 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:59:55,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:59:55,008 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:59:55,009 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:59:55,009 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:59:55,009 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:59:55,009 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:59:55,010 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:59:55,010 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:59:55,010 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:59:55,011 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:59:55,011 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:59:55,012 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:59:55,012 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:59:55,012 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:59:55,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:59:55,013 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:59:55,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:59:55,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:59:55,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:59:55,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:59:55,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:59:55,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:59:55,015 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:59:55,015 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:59:55,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:59:55,015 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:59:55,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:59:55,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:59:55,017 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:59:55,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:59:55,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:59:55,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:59:55,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:59:55,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:59:55,019 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:59:55,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:59:55,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:59:55,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:59:55,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:59:55,020 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-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43afe140f1d8923ae3cc82938867c285a58a3757 [2020-11-30 01:59:55,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:59:55,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:59:55,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:59:55,376 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:59:55,377 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:59:55,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2020-11-30 01:59:55,460 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/data/48af53432/d7569851adc34dc1bcb3b1d48f96521d/FLAG3c0ba16e4 [2020-11-30 01:59:55,995 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:59:55,996 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2020-11-30 01:59:56,011 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/data/48af53432/d7569851adc34dc1bcb3b1d48f96521d/FLAG3c0ba16e4 [2020-11-30 01:59:56,282 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/data/48af53432/d7569851adc34dc1bcb3b1d48f96521d [2020-11-30 01:59:56,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:59:56,285 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:59:56,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:59:56,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:59:56,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:59:56,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:59:56" (1/1) ... [2020-11-30 01:59:56,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39f7c8b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:59:56, skipping insertion in model container [2020-11-30 01:59:56,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:59:56" (1/1) ... [2020-11-30 01:59:56,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:59:56,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:59:56,916 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:1690) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) 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:1080) 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:2342) 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:705) 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:2342) 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:705) 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:1408) 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:1352) 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:1045) 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:1423) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) 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) [2020-11-30 01:59:56,923 INFO L168 Benchmark]: Toolchain (without parser) took 636.42 ms. Allocated memory is still 83.9 MB. Free memory was 49.1 MB in the beginning and 60.4 MB in the end (delta: -11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:59:56,924 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory was 56.5 MB in the beginning and 56.5 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:59:56,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 630.17 ms. Allocated memory is still 83.9 MB. Free memory was 49.0 MB in the beginning and 60.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:59:56,927 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory was 56.5 MB in the beginning and 56.5 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 630.17 ms. Allocated memory is still 83.9 MB. Free memory was 49.0 MB in the beginning and 60.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 10.5 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-a4ecdab [2020-11-30 01:59:59,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:59:59,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:59:59,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:59:59,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:59:59,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:59:59,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:59:59,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:59:59,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:59:59,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:59:59,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:59:59,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:59:59,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:59:59,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:59:59,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:59:59,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:59:59,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:59:59,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:59:59,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:59:59,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:59:59,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:59:59,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:59:59,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:59:59,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:59:59,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:59:59,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:59:59,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:59:59,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:59:59,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:59:59,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:59:59,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:59:59,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:59:59,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:59:59,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:59:59,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:59:59,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:59:59,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:59:59,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:59:59,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:59:59,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:59:59,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:59:59,488 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 01:59:59,512 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:59:59,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:59:59,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:59:59,514 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:59:59,514 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:59:59,515 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:59:59,515 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:59:59,515 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:59:59,515 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:59:59,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:59:59,517 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:59:59,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:59:59,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:59:59,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:59:59,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:59:59,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:59:59,518 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:59:59,518 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:59:59,519 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:59:59,519 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:59:59,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:59:59,520 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:59:59,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:59:59,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:59:59,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:59:59,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:59:59,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:59:59,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:59:59,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:59:59,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:59:59,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:59:59,523 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 01:59:59,523 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:59:59,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:59:59,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:59:59,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:59:59,524 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-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43afe140f1d8923ae3cc82938867c285a58a3757 [2020-11-30 01:59:59,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:59:59,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:59:59,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:59:59,987 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:59:59,989 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:59:59,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2020-11-30 02:00:00,079 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/data/f469e5e4d/584949a36d4541959e7db6f3f433e3cf/FLAG8def908f4 [2020-11-30 02:00:00,712 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:00:00,712 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/sv-benchmarks/c/floats-cbmc-regression/float-div1.i [2020-11-30 02:00:00,726 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/data/f469e5e4d/584949a36d4541959e7db6f3f433e3cf/FLAG8def908f4 [2020-11-30 02:00:00,954 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/data/f469e5e4d/584949a36d4541959e7db6f3f433e3cf [2020-11-30 02:00:00,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:00:00,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:00:00,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:00:00,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:00:00,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:00:00,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:00:00" (1/1) ... [2020-11-30 02:00:00,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4943fd8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:00:00, skipping insertion in model container [2020-11-30 02:00:00,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:00:00" (1/1) ... [2020-11-30 02:00:00,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:00:01,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:00:01,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:00:01,739 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:00:01,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:00:02,180 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:00:02,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:00:02 WrapperNode [2020-11-30 02:00:02,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:00:02,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:00:02,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:00:02,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:00:02,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:00:02" (1/1) ... [2020-11-30 02:00:02,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:00:02" (1/1) ... [2020-11-30 02:00:02,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:00:02,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:00:02,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:00:02,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:00:02,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:00:02" (1/1) ... [2020-11-30 02:00:02,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:00:02" (1/1) ... [2020-11-30 02:00:02,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:00:02" (1/1) ... [2020-11-30 02:00:02,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:00:02" (1/1) ... [2020-11-30 02:00:02,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:00:02" (1/1) ... [2020-11-30 02:00:02,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:00:02" (1/1) ... [2020-11-30 02:00:02,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:00:02" (1/1) ... [2020-11-30 02:00:02,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:00:02,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:00:02,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:00:02,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:00:02,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:00:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/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 [2020-11-30 02:00:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 02:00:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:00:02,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:00:02,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:00:05,217 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:00:05,217 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-30 02:00:05,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:00:05 BoogieIcfgContainer [2020-11-30 02:00:05,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:00:05,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:00:05,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:00:05,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:00:05,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:00:00" (1/3) ... [2020-11-30 02:00:05,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52af2a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:00:05, skipping insertion in model container [2020-11-30 02:00:05,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:00:02" (2/3) ... [2020-11-30 02:00:05,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52af2a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:00:05, skipping insertion in model container [2020-11-30 02:00:05,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:00:05" (3/3) ... [2020-11-30 02:00:05,227 INFO L111 eAbstractionObserver]: Analyzing ICFG float-div1.i [2020-11-30 02:00:05,238 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:00:05,243 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-30 02:00:05,255 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-30 02:00:05,277 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:00:05,277 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:00:05,277 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:00:05,277 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:00:05,277 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:00:05,278 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:00:05,278 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:00:05,278 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:00:05,287 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-11-30 02:00:05,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 02:00:05,291 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:00:05,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:00:05,292 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:00:05,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:00:05,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-11-30 02:00:05,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:00:05,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931265513] [2020-11-30 02:00:05,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/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 [2020-11-30 02:00:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:00:05,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 02:00:05,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:00:05,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:00:05,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:00:05,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:00:05,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [931265513] [2020-11-30 02:00:05,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:00:05,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 02:00:05,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391837716] [2020-11-30 02:00:05,920 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:00:05,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:00:05,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:00:05,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:00:05,941 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-11-30 02:00:05,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:00:05,960 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2020-11-30 02:00:05,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:00:05,962 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-30 02:00:05,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:00:05,990 INFO L225 Difference]: With dead ends: 46 [2020-11-30 02:00:05,990 INFO L226 Difference]: Without dead ends: 19 [2020-11-30 02:00:05,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:00:06,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-30 02:00:06,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-30 02:00:06,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 02:00:06,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-11-30 02:00:06,031 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 7 [2020-11-30 02:00:06,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:00:06,032 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-11-30 02:00:06,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:00:06,032 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-11-30 02:00:06,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 02:00:06,032 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:00:06,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:00:06,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 02:00:06,233 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:00:06,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:00:06,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-11-30 02:00:06,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:00:06,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536307118] [2020-11-30 02:00:06,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/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 [2020-11-30 02:00:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:00:06,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 02:00:06,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:00:07,492 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 28 [2020-11-30 02:00:07,525 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 02:00:07,527 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 02:00:09,808 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 [2020-11-30 02:00:16,192 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 [2020-11-30 02:00:18,259 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 [2020-11-30 02:00:22,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:00:22,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:00:24,629 WARN L838 $PredicateComparison]: unable to prove that (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from false [2020-11-30 02:00:26,752 WARN L860 $PredicateComparison]: unable to prove that (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from true [2020-11-30 02:00:28,864 WARN L838 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond) (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) is different from false [2020-11-30 02:00:31,000 WARN L860 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond) (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) is different from true [2020-11-30 02:00:31,039 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,039 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,044 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,045 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,049 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,050 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,054 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,054 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,057 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,058 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,061 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,061 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,064 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,064 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,067 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,067 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,069 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,070 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,072 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,072 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,074 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-30 02:00:31,074 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,077 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,077 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,079 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-30 02:00:31,080 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,085 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,087 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,089 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,096 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,098 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,102 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,104 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,107 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,109 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,114 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,117 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,119 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,121 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,122 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,124 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-30 02:00:31,130 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,132 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,132 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,134 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-30 02:00:31,134 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,136 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,137 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,138 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,139 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,143 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,143 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,149 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,149 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,152 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,152 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,155 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,155 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,157 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,157 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,159 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1] term [2020-11-30 02:00:31,160 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:00:31,161 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-11-30 02:00:31,162 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-11-30 02:00:31,163 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-11-30 02:00:31,163 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-11-30 02:00:31,164 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-11-30 02:00:31,165 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-11-30 02:00:31,167 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-11-30 02:00:31,168 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-11-30 02:00:31,168 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-11-30 02:00:31,169 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 8 conjuncts [2020-11-30 02:00:33,359 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (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 v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse0 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse1) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse1 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)))) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse2 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse3) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse3 v_ULTIMATE.start_inductiveStepHunt_~startState_4)))))) is different from false [2020-11-30 02:00:35,544 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (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 v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse0 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse1) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse1 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)))) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse2 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse3) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse3 v_ULTIMATE.start_inductiveStepHunt_~startState_4)))))) is different from true [2020-11-30 02:00:35,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:00:35,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536307118] [2020-11-30 02:00:35,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:00:35,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 10 [2020-11-30 02:00:35,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028936256] [2020-11-30 02:00:35,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-30 02:00:35,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:00:35,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-30 02:00:35,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=20, Unknown=9, NotChecked=60, Total=110 [2020-11-30 02:00:35,550 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 11 states. [2020-11-30 02:00:37,682 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (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 v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse0 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse1) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse1 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)))) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse2 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse3) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse3 v_ULTIMATE.start_inductiveStepHunt_~startState_4)))))) is different from false [2020-11-30 02:00:39,886 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (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 v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse0 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse1) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse1 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)))) (forall ((v_ULTIMATE.start_inductiveStepHunt_~startState_4 (_ FloatingPoint 8 24))) (let ((.cse3 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (or (fp.gt (let ((.cse2 ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)))) (fp.div c_currentRoundingMode .cse2 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode v_ULTIMATE.start_inductiveStepHunt_~startState_4 (fp.div c_currentRoundingMode .cse2 v_ULTIMATE.start_inductiveStepHunt_~startState_4)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32))))) .cse3) (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (not (fp.isNormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isInfinite v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.isSubnormal v_ULTIMATE.start_inductiveStepHunt_~startState_4)) (fp.isNaN v_ULTIMATE.start_inductiveStepHunt_~startState_4) (not (fp.lt .cse3 v_ULTIMATE.start_inductiveStepHunt_~startState_4)))))) is different from true [2020-11-30 02:00:42,018 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) (.cse0 (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond))) (and (or .cse0 (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) .cse1)) (= ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)) c_ULTIMATE.start_inductiveStepHunt_~target~0) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse2 (fp.isNormal c_ULTIMATE.start_inductiveStepHunt_~startState))) (or (and .cse2 (or (and .cse0 (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) c_ULTIMATE.start_inductiveStepHunt_~startState))) (and (= (_ bv1 32) c_ULTIMATE.start_assume_abort_if_not_~cond) (fp.lt .cse1 c_ULTIMATE.start_inductiveStepHunt_~startState)))) (and (not .cse2) .cse0))))) is different from false [2020-11-30 02:00:44,153 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) (.cse0 (= (_ bv0 32) c_ULTIMATE.start_assume_abort_if_not_~cond))) (and (or .cse0 (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) .cse1)) (= ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)) c_ULTIMATE.start_inductiveStepHunt_~target~0) (= c_currentRoundingMode roundNearestTiesToEven) (let ((.cse2 (fp.isNormal c_ULTIMATE.start_inductiveStepHunt_~startState))) (or (and .cse2 (or (and .cse0 (not (fp.leq ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 85070591730234615865843651857942052864.0)) c_ULTIMATE.start_inductiveStepHunt_~startState))) (and (= (_ bv1 32) c_ULTIMATE.start_assume_abort_if_not_~cond) (fp.lt .cse1 c_ULTIMATE.start_inductiveStepHunt_~startState)))) (and (not .cse2) .cse0))))) is different from true [2020-11-30 02:00:46,265 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (and (= ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)) c_ULTIMATE.start_inductiveStepHunt_~target~0) (= c_currentRoundingMode roundNearestTiesToEven) (fp.isNormal c_ULTIMATE.start_inductiveStepHunt_~startState) (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) .cse0) (fp.lt .cse0 c_ULTIMATE.start_inductiveStepHunt_~startState))) is different from false [2020-11-30 02:00:48,378 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) (and (= ((_ to_fp 8 24) c_currentRoundingMode (/ 16777215.0 67108864.0)) c_ULTIMATE.start_inductiveStepHunt_~target~0) (= c_currentRoundingMode roundNearestTiesToEven) (fp.isNormal c_ULTIMATE.start_inductiveStepHunt_~startState) (fp.gt (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 (fp.div c_currentRoundingMode (fp.add c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~startState (fp.div c_currentRoundingMode c_ULTIMATE.start_inductiveStepHunt_~target~0 c_ULTIMATE.start_inductiveStepHunt_~startState)) ((_ to_fp 8 24) c_currentRoundingMode (_ bv2 32)))) .cse0) (fp.lt .cse0 c_ULTIMATE.start_inductiveStepHunt_~startState))) is different from true [2020-11-30 02:00:50,483 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) (fp.gt c_ULTIMATE.start_inductiveStepHunt_~oneAfter~0 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) is different from false [2020-11-30 02:00:50,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:00:50,835 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-11-30 02:00:50,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 02:00:50,836 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2020-11-30 02:00:50,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:00:50,836 INFO L225 Difference]: With dead ends: 19 [2020-11-30 02:00:50,836 INFO L226 Difference]: Without dead ends: 16 [2020-11-30 02:00:50,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 34.6s TimeCoverageRelationStatistics Valid=29, Invalid=21, Unknown=16, NotChecked=144, Total=210 [2020-11-30 02:00:50,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-30 02:00:50,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-30 02:00:50,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-30 02:00:50,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-30 02:00:50,841 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2020-11-30 02:00:50,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:00:50,841 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-30 02:00:50,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-30 02:00:50,841 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-30 02:00:50,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 02:00:50,842 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:00:50,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:00:51,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 02:00:51,051 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:00:51,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:00:51,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1843628997, now seen corresponding path program 1 times [2020-11-30 02:00:51,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:00:51,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133804816] [2020-11-30 02:00:51,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/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 [2020-11-30 02:00:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:00:51,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 02:00:51,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:00:51,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:00:51,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:00:51,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:00:51,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133804816] [2020-11-30 02:00:51,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:00:51,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-30 02:00:51,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414972474] [2020-11-30 02:00:51,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:00:51,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:00:51,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:00:51,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:00:51,885 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 4 states. [2020-11-30 02:00:53,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:00:53,601 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-11-30 02:00:53,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:00:53,601 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-30 02:00:53,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:00:53,602 INFO L225 Difference]: With dead ends: 16 [2020-11-30 02:00:53,602 INFO L226 Difference]: Without dead ends: 13 [2020-11-30 02:00:53,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:00:53,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-30 02:00:53,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-30 02:00:53,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 02:00:53,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2020-11-30 02:00:53,605 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2020-11-30 02:00:53,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:00:53,606 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2020-11-30 02:00:53,606 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:00:53,606 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2020-11-30 02:00:53,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 02:00:53,606 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:00:53,606 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:00:53,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 02:00:53,807 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:00:53,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:00:53,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1317586258, now seen corresponding path program 1 times [2020-11-30 02:00:53,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:00:53,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533763117] [2020-11-30 02:00:53,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/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 [2020-11-30 02:00:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:00:54,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 02:00:54,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:00:54,630 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 02:00:59,704 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification that was a NOOP. DAG size: 18 [2020-11-30 02:00:59,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:00:59,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:01:09,778 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 7 [2020-11-30 02:01:17,481 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification that was a NOOP. DAG size: 10 [2020-11-30 02:01:17,486 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 02:01:17,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:01:17,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533763117] [2020-11-30 02:01:17,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:17,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-30 02:01:17,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933442091] [2020-11-30 02:01:17,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 02:01:17,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:01:17,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 02:01:17,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=47, Unknown=2, NotChecked=0, Total=72 [2020-11-30 02:01:17,915 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand 9 states. [2020-11-30 02:01:35,238 WARN L193 SmtUtils]: Spent 8.40 s on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2020-11-30 02:01:35,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:35,619 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-11-30 02:01:35,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 02:01:35,670 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2020-11-30 02:01:35,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:35,671 INFO L225 Difference]: With dead ends: 13 [2020-11-30 02:01:35,671 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 02:01:35,671 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 32.3s TimeCoverageRelationStatistics Valid=40, Invalid=68, Unknown=2, NotChecked=0, Total=110 [2020-11-30 02:01:35,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 02:01:35,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 02:01:35,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 02:01:35,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 02:01:35,672 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-30 02:01:35,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:35,672 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 02:01:35,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 02:01:35,672 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 02:01:35,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:01:35,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 02:01:35,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 02:01:35,934 INFO L274 CegarLoopResult]: For program point L2-1(lines 2 4) no Hoare annotation was computed. [2020-11-30 02:01:35,934 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 02:01:35,934 INFO L277 CegarLoopResult]: At program point L399(lines 394 400) the Hoare annotation is: true [2020-11-30 02:01:35,934 INFO L274 CegarLoopResult]: For program point L391(line 391) no Hoare annotation was computed. [2020-11-30 02:01:35,934 INFO L274 CegarLoopResult]: For program point L391-2(lines 387 393) no Hoare annotation was computed. [2020-11-30 02:01:35,934 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 02:01:35,934 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-30 02:01:35,935 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 02:01:35,935 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 02:01:35,935 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 02:01:35,935 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 02:01:35,935 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-11-30 02:01:35,935 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-11-30 02:01:35,935 INFO L274 CegarLoopResult]: For program point L16-3(line 16) no Hoare annotation was computed. [2020-11-30 02:01:35,935 INFO L274 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-11-30 02:01:35,935 INFO L274 CegarLoopResult]: For program point L16-6(line 16) no Hoare annotation was computed. [2020-11-30 02:01:35,935 INFO L274 CegarLoopResult]: For program point L16-7(line 16) no Hoare annotation was computed. [2020-11-30 02:01:35,935 INFO L274 CegarLoopResult]: For program point L16-8(line 16) no Hoare annotation was computed. [2020-11-30 02:01:35,935 INFO L274 CegarLoopResult]: For program point L16-10(line 16) no Hoare annotation was computed. [2020-11-30 02:01:35,936 INFO L274 CegarLoopResult]: For program point L16-11(line 16) no Hoare annotation was computed. [2020-11-30 02:01:35,936 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 02:01:35,936 INFO L274 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-11-30 02:01:35,936 INFO L274 CegarLoopResult]: For program point L377(lines 377 385) no Hoare annotation was computed. [2020-11-30 02:01:35,936 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 02:01:35,936 INFO L274 CegarLoopResult]: For program point L2(lines 2 4) no Hoare annotation was computed. [2020-11-30 02:01:35,936 INFO L274 CegarLoopResult]: For program point L386(lines 386 393) no Hoare annotation was computed. [2020-11-30 02:01:35,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:01:35 BoogieIcfgContainer [2020-11-30 02:01:35,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:01:35,949 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:01:35,949 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:01:35,949 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:01:35,950 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:00:05" (3/4) ... [2020-11-30 02:01:35,955 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:01:35,968 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-30 02:01:35,969 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 02:01:35,969 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:01:35,970 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:01:36,039 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_af637a5e-5661-45ab-8621-faf0be3da1ab/bin/utaipan/witness.graphml [2020-11-30 02:01:36,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:01:36,041 INFO L168 Benchmark]: Toolchain (without parser) took 95081.71 ms. Allocated memory was 67.1 MB in the beginning and 104.9 MB in the end (delta: 37.7 MB). Free memory was 48.0 MB in the beginning and 46.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:01:36,042 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 67.1 MB. Free memory was 49.4 MB in the beginning and 49.4 MB in the end (delta: 37.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:01:36,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1222.67 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 47.8 MB in the beginning and 38.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:01:36,043 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.07 ms. Allocated memory is still 86.0 MB. Free memory was 38.2 MB in the beginning and 65.1 MB in the end (delta: -26.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:01:36,043 INFO L168 Benchmark]: Boogie Preprocessor took 29.09 ms. Allocated memory is still 86.0 MB. Free memory was 65.1 MB in the beginning and 63.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:01:36,044 INFO L168 Benchmark]: RCFGBuilder took 2923.27 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 48.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 02:01:36,045 INFO L168 Benchmark]: TraceAbstraction took 90727.70 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 48.3 MB in the beginning and 49.6 MB in the end (delta: -1.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:01:36,046 INFO L168 Benchmark]: Witness Printer took 90.67 ms. Allocated memory is still 104.9 MB. Free memory was 49.6 MB in the beginning and 46.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:01:36,054 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 67.1 MB. Free memory was 49.4 MB in the beginning and 49.4 MB in the end (delta: 37.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1222.67 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 47.8 MB in the beginning and 38.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.07 ms. Allocated memory is still 86.0 MB. Free memory was 38.2 MB in the beginning and 65.1 MB in the end (delta: -26.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.09 ms. Allocated memory is still 86.0 MB. Free memory was 65.1 MB in the beginning and 63.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2923.27 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 48.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 90727.70 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 48.3 MB in the beginning and 49.6 MB in the end (delta: -1.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * Witness Printer took 90.67 ms. Allocated memory is still 104.9 MB. Free memory was 49.6 MB in the beginning and 46.4 MB in the end (delta: 3.1 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: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() 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, 26 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 90.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 34.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 15 SDslu, 23 SDs, 0 SdLazy, 53 SolverSat, 0 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 9.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 66.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 2.5s SatisfiabilityAnalysisTime, 52.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 66 ConstructedInterpolants, 6 QuantifiedInterpolants, 4906 SizeOfPredicates, 15 NumberOfNonLiveVariables, 137 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...