./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b63437a4b9cab392a78c715a8db6f3cff5d71cf5 ................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b63437a4b9cab392a78c715a8db6f3cff5d71cf5 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:32:14,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:32:14,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:32:14,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:32:14,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:32:14,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:32:14,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:32:14,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:32:14,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:32:14,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:32:14,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:32:14,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:32:14,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:32:14,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:32:14,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:32:14,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:32:14,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:32:14,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:32:14,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:32:14,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:32:14,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:32:14,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:32:14,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:32:14,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:32:14,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:32:14,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:32:14,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:32:14,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:32:14,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:32:14,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:32:14,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:32:14,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:32:14,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:32:14,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:32:14,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:32:14,661 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:32:14,662 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:32:14,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:32:14,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:32:14,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:32:14,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:32:14,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 03:32:14,723 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:32:14,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:32:14,730 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:32:14,730 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:32:14,730 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:32:14,731 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:32:14,731 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:32:14,731 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:32:14,731 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:32:14,732 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:32:14,733 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:32:14,734 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:32:14,734 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:32:14,734 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:32:14,734 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:32:14,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:32:14,736 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:32:14,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:32:14,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:32:14,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:32:14,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:32:14,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:32:14,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:32:14,738 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:32:14,738 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:32:14,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:32:14,739 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:32:14,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:32:14,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:32:14,741 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:32:14,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:32:14,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:32:14,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:32:14,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:32:14,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:32:14,743 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:32:14,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:32:14,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:32:14,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:32:14,745 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:32:14,745 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63437a4b9cab392a78c715a8db6f3cff5d71cf5 [2020-11-30 03:32:15,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:32:15,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:32:15,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:32:15,154 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:32:15,154 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:32:15,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-11-30 03:32:15,288 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/data/d4524d523/b08b53f0423f4b04a7fbda5d42cb5364/FLAG1b16fbe43 [2020-11-30 03:32:15,862 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:32:15,863 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-11-30 03:32:15,870 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/data/d4524d523/b08b53f0423f4b04a7fbda5d42cb5364/FLAG1b16fbe43 [2020-11-30 03:32:16,254 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/data/d4524d523/b08b53f0423f4b04a7fbda5d42cb5364 [2020-11-30 03:32:16,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:32:16,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:32:16,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:32:16,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:32:16,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:32:16,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:32:16" (1/1) ... [2020-11-30 03:32:16,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44be1221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:16, skipping insertion in model container [2020-11-30 03:32:16,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:32:16" (1/1) ... [2020-11-30 03:32:16,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:32:16,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:32:16,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:32:16,522 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:32:16,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:32:16,562 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:32:16,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:16 WrapperNode [2020-11-30 03:32:16,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:32:16,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:32:16,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:32:16,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:32:16,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:16" (1/1) ... [2020-11-30 03:32:16,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:16" (1/1) ... [2020-11-30 03:32:16,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:32:16,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:32:16,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:32:16,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:32:16,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:16" (1/1) ... [2020-11-30 03:32:16,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:16" (1/1) ... [2020-11-30 03:32:16,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:16" (1/1) ... [2020-11-30 03:32:16,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:16" (1/1) ... [2020-11-30 03:32:16,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:16" (1/1) ... [2020-11-30 03:32:16,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:16" (1/1) ... [2020-11-30 03:32:16,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:16" (1/1) ... [2020-11-30 03:32:16,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:32:16,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:32:16,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:32:16,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:32:16,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:32:16,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 03:32:16,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:32:16,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 03:32:16,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 03:32:16,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 03:32:16,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:32:16,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:32:16,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 03:32:16,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 03:32:17,360 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:32:17,360 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 03:32:17,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:32:17 BoogieIcfgContainer [2020-11-30 03:32:17,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:32:17,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:32:17,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:32:17,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:32:17,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:32:16" (1/3) ... [2020-11-30 03:32:17,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b9b4a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:32:17, skipping insertion in model container [2020-11-30 03:32:17,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:16" (2/3) ... [2020-11-30 03:32:17,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b9b4a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:32:17, skipping insertion in model container [2020-11-30 03:32:17,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:32:17" (3/3) ... [2020-11-30 03:32:17,381 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2020-11-30 03:32:17,395 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:32:17,401 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:32:17,421 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:32:17,471 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:32:17,471 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:32:17,471 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:32:17,471 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:32:17,472 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:32:17,472 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:32:17,473 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:32:17,473 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:32:17,494 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-11-30 03:32:17,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 03:32:17,504 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:32:17,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:32:17,505 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:32:17,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:32:17,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1341979289, now seen corresponding path program 1 times [2020-11-30 03:32:17,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:32:17,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018912045] [2020-11-30 03:32:17,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:32:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:32:17,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:32:17,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018912045] [2020-11-30 03:32:17,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:32:17,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:32:17,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654866826] [2020-11-30 03:32:17,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 03:32:17,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:32:17,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 03:32:17,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:32:17,752 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-11-30 03:32:17,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:32:17,774 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2020-11-30 03:32:17,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 03:32:17,776 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-30 03:32:17,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:32:17,795 INFO L225 Difference]: With dead ends: 39 [2020-11-30 03:32:17,795 INFO L226 Difference]: Without dead ends: 18 [2020-11-30 03:32:17,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:32:17,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-30 03:32:17,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-30 03:32:17,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 03:32:17,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-11-30 03:32:17,828 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2020-11-30 03:32:17,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:32:17,829 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-30 03:32:17,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 03:32:17,829 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-11-30 03:32:17,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 03:32:17,830 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:32:17,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:32:17,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 03:32:17,830 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:32:17,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:32:17,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1205787204, now seen corresponding path program 1 times [2020-11-30 03:32:17,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:32:17,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481021017] [2020-11-30 03:32:17,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:32:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:32:17,885 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:32:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:32:17,918 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:32:17,958 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 03:32:17,958 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 03:32:17,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 03:32:17,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:32:17 BoogieIcfgContainer [2020-11-30 03:32:17,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:32:17,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:32:17,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:32:17,990 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:32:17,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:32:17" (3/4) ... [2020-11-30 03:32:17,993 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 03:32:17,994 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:32:17,995 INFO L168 Benchmark]: Toolchain (without parser) took 1737.10 ms. Allocated memory is still 104.9 MB. Free memory was 72.3 MB in the beginning and 80.2 MB in the end (delta: -7.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:32:17,996 INFO L168 Benchmark]: CDTParser took 1.67 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 77.6 MB in the end (delta: 69.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:32:17,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.49 ms. Allocated memory is still 104.9 MB. Free memory was 72.1 MB in the beginning and 80.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:32:17,998 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.93 ms. Allocated memory is still 104.9 MB. Free memory was 80.7 MB in the beginning and 79.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:32:17,999 INFO L168 Benchmark]: Boogie Preprocessor took 69.12 ms. Allocated memory is still 104.9 MB. Free memory was 79.1 MB in the beginning and 77.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:32:17,999 INFO L168 Benchmark]: RCFGBuilder took 661.32 ms. Allocated memory is still 104.9 MB. Free memory was 77.6 MB in the beginning and 56.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-30 03:32:18,000 INFO L168 Benchmark]: TraceAbstraction took 624.23 ms. Allocated memory is still 104.9 MB. Free memory was 56.1 MB in the beginning and 80.4 MB in the end (delta: -24.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. [2020-11-30 03:32:18,001 INFO L168 Benchmark]: Witness Printer took 3.87 ms. Allocated memory is still 104.9 MB. Free memory was 80.4 MB in the beginning and 80.2 MB in the end (delta: 251.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:32:18,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.67 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 77.6 MB in the end (delta: 69.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 299.49 ms. Allocated memory is still 104.9 MB. Free memory was 72.1 MB in the beginning and 80.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.93 ms. Allocated memory is still 104.9 MB. Free memory was 80.7 MB in the beginning and 79.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.12 ms. Allocated memory is still 104.9 MB. Free memory was 79.1 MB in the beginning and 77.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 661.32 ms. Allocated memory is still 104.9 MB. Free memory was 77.6 MB in the beginning and 56.6 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 624.23 ms. Allocated memory is still 104.9 MB. Free memory was 56.1 MB in the beginning and 80.4 MB in the end (delta: -24.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 16.1 GB. * Witness Printer took 3.87 ms. Allocated memory is still 104.9 MB. Free memory was 80.4 MB in the beginning and 80.2 MB in the end (delta: 251.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 81, overapproximation of bitwiseAnd at line 25, overapproximation of someUnaryFLOAToperation at line 77, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L77] float x = -0.0f; [L15] __uint32_t w; [L17] int exponent_less_127; [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (w) = gf_u.word [L25] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L27] COND FALSE !(exponent_less_127 < 23) [L43] COND TRUE exponent_less_127 == 128 [L45] return x + x; [L78] float res = round_float(x); [L81] EXPR res == -0.0f && __signbit_float(res) == 1 [L81] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_1032b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:32:20,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:32:20,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:32:20,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:32:20,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:32:20,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:32:20,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:32:20,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:32:20,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:32:20,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:32:20,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:32:20,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:32:20,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:32:20,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:32:20,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:32:20,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:32:20,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:32:20,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:32:20,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:32:20,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:32:20,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:32:21,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:32:21,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:32:21,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:32:21,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:32:21,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:32:21,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:32:21,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:32:21,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:32:21,012 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:32:21,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:32:21,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:32:21,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:32:21,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:32:21,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:32:21,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:32:21,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:32:21,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:32:21,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:32:21,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:32:21,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:32:21,024 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 03:32:21,064 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:32:21,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:32:21,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:32:21,070 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:32:21,070 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:32:21,070 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:32:21,071 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:32:21,071 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:32:21,071 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:32:21,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:32:21,074 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:32:21,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:32:21,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:32:21,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:32:21,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:32:21,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:32:21,076 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:32:21,077 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 03:32:21,077 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 03:32:21,077 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:32:21,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:32:21,078 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:32:21,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:32:21,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:32:21,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 03:32:21,079 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:32:21,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:32:21,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:32:21,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:32:21,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:32:21,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:32:21,081 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 03:32:21,081 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 03:32:21,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:32:21,082 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:32:21,082 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:32:21,083 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63437a4b9cab392a78c715a8db6f3cff5d71cf5 [2020-11-30 03:32:21,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:32:21,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:32:21,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:32:21,671 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:32:21,673 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:32:21,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-11-30 03:32:21,777 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/data/e5491697b/f7e27420f9064791b8f7afe8cb3e6a57/FLAGe72edeca3 [2020-11-30 03:32:22,492 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:32:22,495 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2020-11-30 03:32:22,505 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/data/e5491697b/f7e27420f9064791b8f7afe8cb3e6a57/FLAGe72edeca3 [2020-11-30 03:32:22,525 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/data/e5491697b/f7e27420f9064791b8f7afe8cb3e6a57 [2020-11-30 03:32:22,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:32:22,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:32:22,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:32:22,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:32:22,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:32:22,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:32:22" (1/1) ... [2020-11-30 03:32:22,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fe77763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:22, skipping insertion in model container [2020-11-30 03:32:22,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:32:22" (1/1) ... [2020-11-30 03:32:22,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:32:22,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:32:22,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:32:22,889 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:32:22,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:32:22,978 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:32:22,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:22 WrapperNode [2020-11-30 03:32:22,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:32:22,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:32:22,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:32:22,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:32:22,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:22" (1/1) ... [2020-11-30 03:32:23,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:22" (1/1) ... [2020-11-30 03:32:23,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:32:23,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:32:23,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:32:23,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:32:23,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:22" (1/1) ... [2020-11-30 03:32:23,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:22" (1/1) ... [2020-11-30 03:32:23,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:22" (1/1) ... [2020-11-30 03:32:23,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:22" (1/1) ... [2020-11-30 03:32:23,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:22" (1/1) ... [2020-11-30 03:32:23,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:22" (1/1) ... [2020-11-30 03:32:23,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:22" (1/1) ... [2020-11-30 03:32:23,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:32:23,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:32:23,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:32:23,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:32:23,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:32:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 03:32:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:32:23,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 03:32:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 03:32:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:32:23,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:32:23,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 03:32:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 03:32:23,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 03:32:23,906 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:32:23,907 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 03:32:23,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:32:23 BoogieIcfgContainer [2020-11-30 03:32:23,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:32:23,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:32:23,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:32:23,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:32:23,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:32:22" (1/3) ... [2020-11-30 03:32:23,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32c40ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:32:23, skipping insertion in model container [2020-11-30 03:32:23,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:32:22" (2/3) ... [2020-11-30 03:32:23,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32c40ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:32:23, skipping insertion in model container [2020-11-30 03:32:23,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:32:23" (3/3) ... [2020-11-30 03:32:23,922 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2020-11-30 03:32:23,936 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:32:23,942 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:32:23,957 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:32:24,004 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:32:24,005 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:32:24,005 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:32:24,005 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:32:24,005 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:32:24,006 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:32:24,006 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:32:24,006 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:32:24,024 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-11-30 03:32:24,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 03:32:24,032 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:32:24,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:32:24,034 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:32:24,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:32:24,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2020-11-30 03:32:24,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:32:24,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434688373] [2020-11-30 03:32:24,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 03:32:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:32:24,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 03:32:24,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:32:24,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:32:24,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:32:24,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:32:24,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434688373] [2020-11-30 03:32:24,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:32:24,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 03:32:24,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572388640] [2020-11-30 03:32:24,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 03:32:24,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:32:24,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 03:32:24,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:32:24,276 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-11-30 03:32:24,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:32:24,304 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-11-30 03:32:24,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 03:32:24,306 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 03:32:24,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:32:24,322 INFO L225 Difference]: With dead ends: 49 [2020-11-30 03:32:24,322 INFO L226 Difference]: Without dead ends: 22 [2020-11-30 03:32:24,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:32:24,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-30 03:32:24,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-30 03:32:24,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-30 03:32:24,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-11-30 03:32:24,381 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2020-11-30 03:32:24,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:32:24,382 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-11-30 03:32:24,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 03:32:24,382 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-11-30 03:32:24,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 03:32:24,384 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:32:24,384 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:32:24,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 03:32:24,603 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:32:24,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:32:24,607 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2020-11-30 03:32:24,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:32:24,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045320403] [2020-11-30 03:32:24,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 03:32:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:32:24,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 03:32:24,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:32:24,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:32:24,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:32:25,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:32:25,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045320403] [2020-11-30 03:32:25,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:32:25,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 03:32:25,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419422355] [2020-11-30 03:32:25,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 03:32:25,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:32:25,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 03:32:25,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 03:32:25,017 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 8 states. [2020-11-30 03:32:25,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:32:25,182 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2020-11-30 03:32:25,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 03:32:25,183 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-30 03:32:25,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:32:25,185 INFO L225 Difference]: With dead ends: 34 [2020-11-30 03:32:25,187 INFO L226 Difference]: Without dead ends: 20 [2020-11-30 03:32:25,188 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 03:32:25,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-30 03:32:25,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-30 03:32:25,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-30 03:32:25,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-11-30 03:32:25,203 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2020-11-30 03:32:25,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:32:25,203 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-11-30 03:32:25,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 03:32:25,204 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-11-30 03:32:25,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 03:32:25,206 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:32:25,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:32:25,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 03:32:25,423 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:32:25,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:32:25,424 INFO L82 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2020-11-30 03:32:25,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:32:25,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491121377] [2020-11-30 03:32:25,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 03:32:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:32:25,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 03:32:25,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:32:25,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:32:25,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:32:25,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:32:25,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491121377] [2020-11-30 03:32:25,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:32:25,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-30 03:32:25,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748956191] [2020-11-30 03:32:25,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 03:32:25,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:32:25,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 03:32:25,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-30 03:32:25,708 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2020-11-30 03:32:26,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:32:26,023 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-11-30 03:32:26,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 03:32:26,024 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-11-30 03:32:26,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:32:26,025 INFO L225 Difference]: With dead ends: 23 [2020-11-30 03:32:26,025 INFO L226 Difference]: Without dead ends: 20 [2020-11-30 03:32:26,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-11-30 03:32:26,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-30 03:32:26,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-30 03:32:26,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-30 03:32:26,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2020-11-30 03:32:26,032 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2020-11-30 03:32:26,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:32:26,033 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2020-11-30 03:32:26,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 03:32:26,033 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-11-30 03:32:26,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-30 03:32:26,034 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:32:26,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:32:26,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 03:32:26,253 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:32:26,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:32:26,254 INFO L82 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2020-11-30 03:32:26,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:32:26,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080746500] [2020-11-30 03:32:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 03:32:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:32:26,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-30 03:32:26,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:32:26,491 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 03:32:26,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:32:26,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:32:27,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:32:27,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080746500] [2020-11-30 03:32:27,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:32:27,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 11] imperfect sequences [] total 17 [2020-11-30 03:32:27,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675344152] [2020-11-30 03:32:27,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-30 03:32:27,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:32:27,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-30 03:32:27,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-11-30 03:32:27,047 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 17 states. [2020-11-30 03:32:27,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:32:27,462 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2020-11-30 03:32:27,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 03:32:27,465 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2020-11-30 03:32:27,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:32:27,465 INFO L225 Difference]: With dead ends: 20 [2020-11-30 03:32:27,466 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 03:32:27,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2020-11-30 03:32:27,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 03:32:27,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 03:32:27,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 03:32:27,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 03:32:27,467 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-11-30 03:32:27,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:32:27,468 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 03:32:27,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-30 03:32:27,468 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 03:32:27,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 03:32:27,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 03:32:27,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 03:32:28,048 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2020-11-30 03:32:28,051 INFO L274 CegarLoopResult]: For program point L27(lines 27 48) no Hoare annotation was computed. [2020-11-30 03:32:28,052 INFO L274 CegarLoopResult]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2020-11-30 03:32:28,052 INFO L270 CegarLoopResult]: At program point L60-2(lines 60 64) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))))) (= |ULTIMATE.start_round_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= ULTIMATE.start_round_float_~x .cse0) |ULTIMATE.start_main_#t~short15|)) [2020-11-30 03:32:28,053 INFO L274 CegarLoopResult]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2020-11-30 03:32:28,053 INFO L274 CegarLoopResult]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2020-11-30 03:32:28,053 INFO L270 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: (= ULTIMATE.start_round_float_~x (fp.neg (_ +zero 8 24))) [2020-11-30 03:32:28,053 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-11-30 03:32:28,053 INFO L274 CegarLoopResult]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2020-11-30 03:32:28,054 INFO L274 CegarLoopResult]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2020-11-30 03:32:28,054 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 03:32:28,054 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 03:32:28,054 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 03:32:28,054 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 03:32:28,055 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 03:32:28,055 INFO L274 CegarLoopResult]: For program point L28(lines 28 41) no Hoare annotation was computed. [2020-11-30 03:32:28,055 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 03:32:28,055 INFO L277 CegarLoopResult]: At program point L86(lines 69 87) the Hoare annotation is: true [2020-11-30 03:32:28,055 INFO L274 CegarLoopResult]: For program point L49(lines 49 53) no Hoare annotation was computed. [2020-11-30 03:32:28,056 INFO L274 CegarLoopResult]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2020-11-30 03:32:28,056 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2020-11-30 03:32:28,056 INFO L270 CegarLoopResult]: At program point L66(lines 57 67) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))))) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start_round_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) (= .cse0 ULTIMATE.start___signbit_float_~x) (= .cse0 ULTIMATE.start_main_~res~0) (= ULTIMATE.start_round_float_~x .cse0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) |ULTIMATE.start_main_#t~short15|)) [2020-11-30 03:32:28,056 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 03:32:28,057 INFO L270 CegarLoopResult]: At program point L54(lines 14 55) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.neg (_ +zero 8 24))))) (= |ULTIMATE.start_round_float_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) .cse0) (= ULTIMATE.start_round_float_~x .cse0))) [2020-11-30 03:32:28,057 INFO L274 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-11-30 03:32:28,057 INFO L274 CegarLoopResult]: For program point L43(lines 43 47) no Hoare annotation was computed. [2020-11-30 03:32:28,057 INFO L274 CegarLoopResult]: For program point L35(lines 35 37) no Hoare annotation was computed. [2020-11-30 03:32:28,065 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,066 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,067 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,067 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,076 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,076 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,077 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,077 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,079 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,079 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,079 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,079 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,080 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,081 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,081 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,081 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,083 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,083 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,083 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,084 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,085 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,085 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,085 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,086 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:32:28 BoogieIcfgContainer [2020-11-30 03:32:28,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:32:28,089 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:32:28,090 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:32:28,096 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:32:28,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:32:23" (3/4) ... [2020-11-30 03:32:28,100 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 03:32:28,116 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-30 03:32:28,117 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-30 03:32:28,117 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 03:32:28,117 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 03:32:28,153 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-11-30 03:32:28,155 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-11-30 03:32:28,156 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2020-11-30 03:32:28,213 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cd99c7a4-f117-4fa3-b474-67d838342615/bin/utaipan/witness.graphml [2020-11-30 03:32:28,213 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:32:28,215 INFO L168 Benchmark]: Toolchain (without parser) took 5683.11 ms. Allocated memory was 52.4 MB in the beginning and 79.7 MB in the end (delta: 27.3 MB). Free memory was 29.3 MB in the beginning and 51.7 MB in the end (delta: -22.3 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2020-11-30 03:32:28,216 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 52.4 MB. Free memory was 34.8 MB in the beginning and 34.7 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:32:28,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.44 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 29.1 MB in the beginning and 48.3 MB in the end (delta: -19.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-11-30 03:32:28,217 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.16 ms. Allocated memory is still 65.0 MB. Free memory was 48.3 MB in the beginning and 46.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:32:28,217 INFO L168 Benchmark]: Boogie Preprocessor took 49.29 ms. Allocated memory is still 65.0 MB. Free memory was 46.6 MB in the beginning and 45.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:32:28,218 INFO L168 Benchmark]: RCFGBuilder took 784.35 ms. Allocated memory is still 65.0 MB. Free memory was 45.1 MB in the beginning and 45.6 MB in the end (delta: -487.4 kB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. [2020-11-30 03:32:28,219 INFO L168 Benchmark]: TraceAbstraction took 4175.99 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 45.0 MB in the beginning and 55.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2020-11-30 03:32:28,219 INFO L168 Benchmark]: Witness Printer took 124.09 ms. Allocated memory is still 79.7 MB. Free memory was 55.2 MB in the beginning and 51.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 03:32:28,223 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 52.4 MB. Free memory was 34.8 MB in the beginning and 34.7 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 445.44 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 29.1 MB in the beginning and 48.3 MB in the end (delta: -19.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.16 ms. Allocated memory is still 65.0 MB. Free memory was 48.3 MB in the beginning and 46.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.29 ms. Allocated memory is still 65.0 MB. Free memory was 46.6 MB in the beginning and 45.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 784.35 ms. Allocated memory is still 65.0 MB. Free memory was 45.1 MB in the beginning and 45.6 MB in the end (delta: -487.4 kB). Peak memory consumption was 19.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4175.99 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 45.0 MB in the beginning and 55.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. * Witness Printer took 124.09 ms. Allocated memory is still 79.7 MB. Free memory was 55.2 MB in the beginning and 51.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 60]: Loop Invariant [2020-11-30 03:32:28,235 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,237 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,237 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,237 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,237 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux - InvariantResult [Line: 14]: Loop Invariant [2020-11-30 03:32:28,238 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,238 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,238 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,240 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,240 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 57]: Loop Invariant [2020-11-30 03:32:28,241 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,241 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,241 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,241 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,242 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,242 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,242 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-11-30 03:32:28,242 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((((((((\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && aux-res == -0.0f && __signbit_float(res) == 1-aux - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 163 SDslu, 63 SDs, 0 SdLazy, 89 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 72 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 158 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 47 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 19 QuantifiedInterpolants, 10036 SizeOfPredicates, 25 NumberOfNonLiveVariables, 206 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...