./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c5678568630a4199d94fed33c5301bef19d60be ................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c5678568630a4199d94fed33c5301bef19d60be ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:22:28,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:22:28,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:22:28,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:22:28,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:22:28,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:22:28,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:22:28,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:22:28,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:22:28,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:22:28,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:22:28,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:22:28,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:22:28,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:22:28,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:22:28,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:22:28,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:22:28,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:22:28,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:22:28,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:22:28,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:22:28,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:22:28,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:22:28,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:22:28,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:22:28,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:22:28,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:22:28,614 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:22:28,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:22:28,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:22:28,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:22:28,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:22:28,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:22:28,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:22:28,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:22:28,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:22:28,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:22:28,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:22:28,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:22:28,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:22:28,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:22:28,629 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:22:28,656 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:22:28,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:22:28,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:22:28,658 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:22:28,658 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:22:28,658 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:22:28,659 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:22:28,659 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:22:28,659 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:22:28,659 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:22:28,660 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:22:28,660 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:22:28,660 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:22:28,661 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:22:28,661 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:22:28,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:22:28,662 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:22:28,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:22:28,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:22:28,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:22:28,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:22:28,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:22:28,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:22:28,664 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:22:28,665 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:22:28,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:22:28,665 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:22:28,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:22:28,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:22:28,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:22:28,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:22:28,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:22:28,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:22:28,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:22:28,668 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:22:28,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:22:28,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:22:28,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:22:28,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:22:28,669 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5678568630a4199d94fed33c5301bef19d60be [2021-10-11 02:22:29,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:22:29,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:22:29,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:22:29,055 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:22:29,056 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:22:29,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-10-11 02:22:29,162 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/data/3721741e9/b8435c2a73b34f64b9bfcf2adfccae59/FLAG4693f67b1 [2021-10-11 02:22:29,776 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:22:29,777 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-10-11 02:22:29,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/data/3721741e9/b8435c2a73b34f64b9bfcf2adfccae59/FLAG4693f67b1 [2021-10-11 02:22:30,010 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/data/3721741e9/b8435c2a73b34f64b9bfcf2adfccae59 [2021-10-11 02:22:30,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:22:30,015 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:22:30,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:30,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:22:30,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:22:30,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:30" (1/1) ... [2021-10-11 02:22:30,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32669ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:30, skipping insertion in model container [2021-10-11 02:22:30,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:30" (1/1) ... [2021-10-11 02:22:30,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:22:30,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:22:30,744 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1710) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1402) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2343) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:706) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2343) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1409) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1353) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1046) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1424) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2293) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-11 02:22:30,756 INFO L168 Benchmark]: Toolchain (without parser) took 738.88 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 50.1 MB in the beginning and 83.4 MB in the end (delta: -33.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:30,758 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory was 56.8 MB in the beginning and 56.7 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:22:30,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.13 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 50.1 MB in the beginning and 83.4 MB in the end (delta: -33.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:30,764 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory was 56.8 MB in the beginning and 56.7 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 736.13 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 50.1 MB in the beginning and 83.4 MB in the end (delta: -33.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fpclassify: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:22:33,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:22:33,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:22:33,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:22:33,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:22:33,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:22:33,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:22:33,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:22:33,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:22:33,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:22:33,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:22:33,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:22:33,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:22:33,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:22:33,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:22:33,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:22:33,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:22:33,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:22:33,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:22:33,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:22:33,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:22:33,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:22:33,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:22:33,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:22:33,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:22:33,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:22:33,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:22:33,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:22:33,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:22:33,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:22:33,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:22:33,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:22:33,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:22:33,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:22:33,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:22:33,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:22:33,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:22:33,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:22:33,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:22:33,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:22:33,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:22:33,236 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:22:33,283 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:22:33,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:22:33,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:22:33,284 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:22:33,285 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:22:33,285 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:22:33,285 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:22:33,285 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:22:33,286 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:22:33,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:22:33,287 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:22:33,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:22:33,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:22:33,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:22:33,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:22:33,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:22:33,288 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:22:33,289 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:22:33,289 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:22:33,289 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:22:33,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:22:33,290 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:22:33,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:22:33,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:22:33,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:22:33,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:22:33,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:22:33,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:22:33,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:22:33,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:22:33,292 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:22:33,292 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:22:33,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:22:33,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:22:33,293 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:22:33,293 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5678568630a4199d94fed33c5301bef19d60be [2021-10-11 02:22:33,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:22:33,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:22:33,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:22:33,754 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:22:33,755 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:22:33,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-10-11 02:22:33,847 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/data/82df87c85/1901ef1a295e4f2395104a87e4042ee5/FLAGb4fbf0fb0 [2021-10-11 02:22:34,565 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:22:34,565 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i [2021-10-11 02:22:34,595 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/data/82df87c85/1901ef1a295e4f2395104a87e4042ee5/FLAGb4fbf0fb0 [2021-10-11 02:22:34,830 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/data/82df87c85/1901ef1a295e4f2395104a87e4042ee5 [2021-10-11 02:22:34,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:22:34,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:22:34,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:34,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:22:34,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:22:34,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:34" (1/1) ... [2021-10-11 02:22:34,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c9b1703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:34, skipping insertion in model container [2021-10-11 02:22:34,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:22:34" (1/1) ... [2021-10-11 02:22:34,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:22:34,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:22:35,635 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41149,41162] [2021-10-11 02:22:35,640 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41296,41309] [2021-10-11 02:22:35,645 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41445,41458] [2021-10-11 02:22:35,652 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41846,41859] [2021-10-11 02:22:35,655 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41993,42006] [2021-10-11 02:22:35,664 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42394,42407] [2021-10-11 02:22:35,669 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42541,42554] [2021-10-11 02:22:35,670 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42582,42595] [2021-10-11 02:22:35,674 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42965,42978] [2021-10-11 02:22:35,676 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43112,43125] [2021-10-11 02:22:35,692 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43610,43623] [2021-10-11 02:22:35,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:35,712 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:22:35,747 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41149,41162] [2021-10-11 02:22:35,756 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41296,41309] [2021-10-11 02:22:35,759 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41445,41458] [2021-10-11 02:22:35,768 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41846,41859] [2021-10-11 02:22:35,770 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[41993,42006] [2021-10-11 02:22:35,779 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42394,42407] [2021-10-11 02:22:35,789 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42541,42554] [2021-10-11 02:22:35,790 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42582,42595] [2021-10-11 02:22:35,792 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[42965,42978] [2021-10-11 02:22:35,796 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43112,43125] [2021-10-11 02:22:35,799 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/sv-benchmarks/c/floats-cbmc-regression/float-no-simp4.i[43610,43623] [2021-10-11 02:22:35,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:22:36,125 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:22:36,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36 WrapperNode [2021-10-11 02:22:36,126 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:22:36,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:36,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:22:36,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:22:36,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:22:36,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:22:36,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:22:36,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:22:36,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... [2021-10-11 02:22:36,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:22:36,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:22:36,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:22:36,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:22:36,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:22:36,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:22:36,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:22:36,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:22:36,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:22:36,719 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:22:36,719 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-11 02:22:36,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:36 BoogieIcfgContainer [2021-10-11 02:22:36,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:22:36,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:22:36,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:22:36,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:22:36,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:22:34" (1/3) ... [2021-10-11 02:22:36,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d137b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:36, skipping insertion in model container [2021-10-11 02:22:36,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:22:36" (2/3) ... [2021-10-11 02:22:36,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d137b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:22:36, skipping insertion in model container [2021-10-11 02:22:36,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:36" (3/3) ... [2021-10-11 02:22:36,729 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp4.i [2021-10-11 02:22:36,744 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:22:36,748 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 11 error locations. [2021-10-11 02:22:36,759 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-10-11 02:22:36,800 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:22:36,800 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:22:36,800 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:22:36,800 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:22:36,801 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:22:36,801 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:22:36,801 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:22:36,801 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:22:36,816 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2021-10-11 02:22:36,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:22:36,821 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:36,821 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:22:36,822 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:36,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:36,829 INFO L82 PathProgramCache]: Analyzing trace with hash 28693891, now seen corresponding path program 1 times [2021-10-11 02:22:36,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:22:36,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004813763] [2021-10-11 02:22:36,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:22:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:36,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:22:36,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:37,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:37,007 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:22:37,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004813763] [2021-10-11 02:22:37,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:37,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:22:37,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221808688] [2021-10-11 02:22:37,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:22:37,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:22:37,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:22:37,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:22:37,035 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2021-10-11 02:22:37,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:37,066 INFO L93 Difference]: Finished difference Result 91 states and 120 transitions. [2021-10-11 02:22:37,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:22:37,068 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2021-10-11 02:22:37,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:37,089 INFO L225 Difference]: With dead ends: 91 [2021-10-11 02:22:37,092 INFO L226 Difference]: Without dead ends: 44 [2021-10-11 02:22:37,095 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:22:37,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-11 02:22:37,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-10-11 02:22:37,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2021-10-11 02:22:37,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 43 transitions. [2021-10-11 02:22:37,146 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 43 transitions. Word has length 5 [2021-10-11 02:22:37,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:37,146 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 43 transitions. [2021-10-11 02:22:37,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:22:37,147 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 43 transitions. [2021-10-11 02:22:37,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:22:37,148 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:37,148 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:22:37,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:22:37,364 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:37,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:37,365 INFO L82 PathProgramCache]: Analyzing trace with hash 28695813, now seen corresponding path program 1 times [2021-10-11 02:22:37,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:22:37,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1134101786] [2021-10-11 02:22:37,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:22:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:37,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:22:37,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:37,661 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 11 [2021-10-11 02:22:37,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:37,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:22:37,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1134101786] [2021-10-11 02:22:37,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:37,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:37,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417791139] [2021-10-11 02:22:37,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:37,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:22:37,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:37,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:37,690 INFO L87 Difference]: Start difference. First operand 44 states and 43 transitions. Second operand 4 states. [2021-10-11 02:22:37,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:37,763 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2021-10-11 02:22:37,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:22:37,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2021-10-11 02:22:37,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:37,764 INFO L225 Difference]: With dead ends: 44 [2021-10-11 02:22:37,765 INFO L226 Difference]: Without dead ends: 38 [2021-10-11 02:22:37,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:22:37,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-11 02:22:37,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-11 02:22:37,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-10-11 02:22:37,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 37 transitions. [2021-10-11 02:22:37,771 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 37 transitions. Word has length 5 [2021-10-11 02:22:37,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:37,771 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 37 transitions. [2021-10-11 02:22:37,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:37,771 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 37 transitions. [2021-10-11 02:22:37,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:22:37,772 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:37,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:37,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:22:37,989 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:37,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:37,991 INFO L82 PathProgramCache]: Analyzing trace with hash -686348615, now seen corresponding path program 1 times [2021-10-11 02:22:37,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:22:37,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710397727] [2021-10-11 02:22:37,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:22:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:38,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:22:38,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:38,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:38,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:22:38,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710397727] [2021-10-11 02:22:38,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:38,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:38,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470174719] [2021-10-11 02:22:38,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:38,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:22:38,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:38,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:38,113 INFO L87 Difference]: Start difference. First operand 38 states and 37 transitions. Second operand 4 states. [2021-10-11 02:22:38,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:38,237 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2021-10-11 02:22:38,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:22:38,237 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2021-10-11 02:22:38,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:38,238 INFO L225 Difference]: With dead ends: 38 [2021-10-11 02:22:38,238 INFO L226 Difference]: Without dead ends: 34 [2021-10-11 02:22:38,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:22:38,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-11 02:22:38,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-11 02:22:38,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-10-11 02:22:38,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2021-10-11 02:22:38,242 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 10 [2021-10-11 02:22:38,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:38,242 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2021-10-11 02:22:38,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:38,243 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2021-10-11 02:22:38,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:22:38,243 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:38,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:38,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:22:38,444 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:38,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:38,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1664358106, now seen corresponding path program 1 times [2021-10-11 02:22:38,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:22:38,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636063362] [2021-10-11 02:22:38,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:22:38,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:38,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:22:38,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:38,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:38,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:22:38,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636063362] [2021-10-11 02:22:38,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:38,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:38,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032113633] [2021-10-11 02:22:38,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:38,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:22:38,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:38,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:38,590 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand 4 states. [2021-10-11 02:22:38,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:38,681 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2021-10-11 02:22:38,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:22:38,682 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2021-10-11 02:22:38,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:38,686 INFO L225 Difference]: With dead ends: 34 [2021-10-11 02:22:38,687 INFO L226 Difference]: Without dead ends: 28 [2021-10-11 02:22:38,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:22:38,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-11 02:22:38,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-11 02:22:38,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-10-11 02:22:38,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2021-10-11 02:22:38,695 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 14 [2021-10-11 02:22:38,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:38,696 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2021-10-11 02:22:38,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:38,696 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2021-10-11 02:22:38,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 02:22:38,697 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:38,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:38,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:22:38,910 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:38,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:38,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1867176430, now seen corresponding path program 1 times [2021-10-11 02:22:38,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:22:38,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246582055] [2021-10-11 02:22:38,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:22:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:38,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:22:38,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:39,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:39,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:22:39,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [246582055] [2021-10-11 02:22:39,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:39,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:39,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861430392] [2021-10-11 02:22:39,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:39,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:22:39,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:39,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:39,062 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 4 states. [2021-10-11 02:22:39,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:39,167 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2021-10-11 02:22:39,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:22:39,168 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2021-10-11 02:22:39,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:39,168 INFO L225 Difference]: With dead ends: 28 [2021-10-11 02:22:39,169 INFO L226 Difference]: Without dead ends: 24 [2021-10-11 02:22:39,169 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:22:39,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-11 02:22:39,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-10-11 02:22:39,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-10-11 02:22:39,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2021-10-11 02:22:39,172 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 19 [2021-10-11 02:22:39,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:39,172 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2021-10-11 02:22:39,172 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:39,172 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2021-10-11 02:22:39,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 02:22:39,173 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:22:39,173 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:22:39,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:22:39,382 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:22:39,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:22:39,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1057859749, now seen corresponding path program 1 times [2021-10-11 02:22:39,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:22:39,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912841046] [2021-10-11 02:22:39,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2021-10-11 02:22:39,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:22:39,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:22:39,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:22:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:22:39,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:22:39,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912841046] [2021-10-11 02:22:39,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:22:39,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:22:39,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195300539] [2021-10-11 02:22:39,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:22:39,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:22:39,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:22:39,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:22:39,616 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 4 states. [2021-10-11 02:22:39,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:22:39,706 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2021-10-11 02:22:39,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:22:39,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2021-10-11 02:22:39,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:22:39,707 INFO L225 Difference]: With dead ends: 24 [2021-10-11 02:22:39,707 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:22:39,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:22:39,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:22:39,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:22:39,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:22:39,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:22:39,708 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2021-10-11 02:22:39,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:22:39,708 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:22:39,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:22:39,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:22:39,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:22:39,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:22:39,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:22:39,915 INFO L262 CegarLoopResult]: For program point L2-1(line 981) no Hoare annotation was computed. [2021-10-11 02:22:39,915 INFO L262 CegarLoopResult]: For program point L2-2(line 988) no Hoare annotation was computed. [2021-10-11 02:22:39,915 INFO L262 CegarLoopResult]: For program point L2-3(line 997) no Hoare annotation was computed. [2021-10-11 02:22:39,915 INFO L262 CegarLoopResult]: For program point L2-4(line 1004) no Hoare annotation was computed. [2021-10-11 02:22:39,915 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 998) no Hoare annotation was computed. [2021-10-11 02:22:39,915 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 974) no Hoare annotation was computed. [2021-10-11 02:22:39,916 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2021-10-11 02:22:39,916 INFO L262 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2021-10-11 02:22:39,916 INFO L262 CegarLoopResult]: For program point L3-4(line 3) no Hoare annotation was computed. [2021-10-11 02:22:39,916 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 982) no Hoare annotation was computed. [2021-10-11 02:22:39,916 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:22:39,916 INFO L262 CegarLoopResult]: For program point L3-6(line 3) no Hoare annotation was computed. [2021-10-11 02:22:39,916 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:22:39,916 INFO L262 CegarLoopResult]: For program point L3-8(line 3) no Hoare annotation was computed. [2021-10-11 02:22:39,917 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 981) no Hoare annotation was computed. [2021-10-11 02:22:39,917 INFO L262 CegarLoopResult]: For program point L1004(line 1004) no Hoare annotation was computed. [2021-10-11 02:22:39,917 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 989) no Hoare annotation was computed. [2021-10-11 02:22:39,917 INFO L262 CegarLoopResult]: For program point L988(line 988) no Hoare annotation was computed. [2021-10-11 02:22:39,917 INFO L262 CegarLoopResult]: For program point L988-2(lines 968 1005) no Hoare annotation was computed. [2021-10-11 02:22:39,919 INFO L262 CegarLoopResult]: For program point L997(line 997) no Hoare annotation was computed. [2021-10-11 02:22:39,919 INFO L262 CegarLoopResult]: For program point L997-2(lines 968 1005) no Hoare annotation was computed. [2021-10-11 02:22:39,919 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 988) no Hoare annotation was computed. [2021-10-11 02:22:39,919 INFO L262 CegarLoopResult]: For program point L989(line 989) no Hoare annotation was computed. [2021-10-11 02:22:39,919 INFO L262 CegarLoopResult]: For program point L989-2(lines 968 1005) no Hoare annotation was computed. [2021-10-11 02:22:39,919 INFO L262 CegarLoopResult]: For program point L981(line 981) no Hoare annotation was computed. [2021-10-11 02:22:39,919 INFO L262 CegarLoopResult]: For program point L981-2(lines 968 1005) no Hoare annotation was computed. [2021-10-11 02:22:39,920 INFO L262 CegarLoopResult]: For program point L973(line 973) no Hoare annotation was computed. [2021-10-11 02:22:39,920 INFO L262 CegarLoopResult]: For program point L973-2(lines 968 1005) no Hoare annotation was computed. [2021-10-11 02:22:39,920 INFO L262 CegarLoopResult]: For program point L998(line 998) no Hoare annotation was computed. [2021-10-11 02:22:39,920 INFO L262 CegarLoopResult]: For program point L998-2(line 998) no Hoare annotation was computed. [2021-10-11 02:22:39,920 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:22:39,920 INFO L262 CegarLoopResult]: For program point L990(line 990) no Hoare annotation was computed. [2021-10-11 02:22:39,921 INFO L262 CegarLoopResult]: For program point L990-2(line 990) no Hoare annotation was computed. [2021-10-11 02:22:39,921 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 997) no Hoare annotation was computed. [2021-10-11 02:22:39,922 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 973) no Hoare annotation was computed. [2021-10-11 02:22:39,922 INFO L262 CegarLoopResult]: For program point L982(line 982) no Hoare annotation was computed. [2021-10-11 02:22:39,922 INFO L262 CegarLoopResult]: For program point L982-2(line 982) no Hoare annotation was computed. [2021-10-11 02:22:39,922 INFO L262 CegarLoopResult]: For program point L974(line 974) no Hoare annotation was computed. [2021-10-11 02:22:39,922 INFO L262 CegarLoopResult]: For program point L974-2(lines 968 1005) no Hoare annotation was computed. [2021-10-11 02:22:39,922 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:22:39,922 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 990) no Hoare annotation was computed. [2021-10-11 02:22:39,922 INFO L262 CegarLoopResult]: For program point L975(line 975) no Hoare annotation was computed. [2021-10-11 02:22:39,923 INFO L262 CegarLoopResult]: For program point L975-2(line 975) no Hoare annotation was computed. [2021-10-11 02:22:39,923 INFO L262 CegarLoopResult]: For program point L967(lines 967 1005) no Hoare annotation was computed. [2021-10-11 02:22:39,923 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 1004) no Hoare annotation was computed. [2021-10-11 02:22:39,923 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 975) no Hoare annotation was computed. [2021-10-11 02:22:39,923 INFO L262 CegarLoopResult]: For program point L2(line 973) no Hoare annotation was computed. [2021-10-11 02:22:39,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:22:39 BoogieIcfgContainer [2021-10-11 02:22:39,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:22:39,929 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:22:39,929 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:22:39,930 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:22:39,931 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:22:36" (3/4) ... [2021-10-11 02:22:39,936 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:22:39,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-11 02:22:39,952 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:22:39,953 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:22:39,954 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:22:40,022 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f55ccc95-e4fd-48c7-9636-949472c7c217/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:22:40,022 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:22:40,024 INFO L168 Benchmark]: Toolchain (without parser) took 5188.53 ms. Allocated memory was 73.4 MB in the beginning and 111.1 MB in the end (delta: 37.7 MB). Free memory was 57.9 MB in the beginning and 66.1 MB in the end (delta: -8.2 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:40,024 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 73.4 MB. Free memory was 55.3 MB in the beginning and 55.2 MB in the end (delta: 66.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:22:40,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1290.40 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 57.7 MB in the beginning and 45.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:40,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.35 ms. Allocated memory is still 92.3 MB. Free memory was 45.7 MB in the beginning and 43.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:40,026 INFO L168 Benchmark]: Boogie Preprocessor took 32.64 ms. Allocated memory is still 92.3 MB. Free memory was 43.1 MB in the beginning and 41.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:40,026 INFO L168 Benchmark]: RCFGBuilder took 497.57 ms. Allocated memory is still 92.3 MB. Free memory was 41.6 MB in the beginning and 67.8 MB in the end (delta: -26.2 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:40,027 INFO L168 Benchmark]: TraceAbstraction took 3206.18 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 67.0 MB in the beginning and 70.3 MB in the end (delta: -3.3 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:40,027 INFO L168 Benchmark]: Witness Printer took 93.29 ms. Allocated memory is still 111.1 MB. Free memory was 70.3 MB in the beginning and 66.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:22:40,029 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 73.4 MB. Free memory was 55.3 MB in the beginning and 55.2 MB in the end (delta: 66.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1290.40 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 57.7 MB in the beginning and 45.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 37.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.35 ms. Allocated memory is still 92.3 MB. Free memory was 45.7 MB in the beginning and 43.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.64 ms. Allocated memory is still 92.3 MB. Free memory was 43.1 MB in the beginning and 41.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 497.57 ms. Allocated memory is still 92.3 MB. Free memory was 41.6 MB in the beginning and 67.8 MB in the end (delta: -26.2 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3206.18 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 67.0 MB in the beginning and 70.3 MB in the end (delta: -3.3 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * Witness Printer took 93.29 ms. Allocated memory is still 111.1 MB. Free memory was 70.3 MB in the beginning and 66.1 MB in the end (delta: 4.2 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: 974]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 997]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 982]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 990]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 988]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 989]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1004]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 981]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 973]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 975]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 998]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 11 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 172 SDtfs, 95 SDslu, 128 SDs, 0 SdLazy, 64 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 2654 SizeOfPredicates, 15 NumberOfNonLiveVariables, 226 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...