./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c -s /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/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 25f88ce65e61cc7e7d9ef61e43238296440b1f18 ........................................................................................................................................................................................................................................................................................................ 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_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c -s /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/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 25f88ce65e61cc7e7d9ef61e43238296440b1f18 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 18:43:00,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:43:00,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:43:00,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:43:00,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:43:00,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:43:00,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:43:00,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:43:00,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:43:00,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:43:00,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:43:00,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:43:00,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:43:00,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:43:00,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:43:00,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:43:00,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:43:00,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:43:00,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:43:00,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:43:00,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:43:00,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:43:00,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:43:00,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:43:00,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:43:00,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:43:00,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:43:00,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:43:00,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:43:00,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:43:00,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:43:00,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:43:00,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:43:00,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:43:00,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:43:00,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:43:00,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:43:00,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:43:00,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:43:00,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:43:00,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:43:00,703 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 18:43:00,720 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:43:00,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:43:00,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:43:00,721 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:43:00,721 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:43:00,721 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:43:00,721 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 18:43:00,722 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:43:00,722 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:43:00,722 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 18:43:00,722 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 18:43:00,722 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:43:00,722 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 18:43:00,722 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 18:43:00,723 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 18:43:00,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:43:00,723 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:43:00,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 18:43:00,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:43:00,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:43:00,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:43:00,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:43:00,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:43:00,724 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:43:00,724 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:43:00,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:43:00,725 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:43:00,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:43:00,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:43:00,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:43:00,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:43:00,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:43:00,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:43:00,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:43:00,726 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 18:43:00,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 18:43:00,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:43:00,726 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:43:00,726 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:43:00,727 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_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25f88ce65e61cc7e7d9ef61e43238296440b1f18 [2020-12-09 18:43:00,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:43:00,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:43:00,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:43:00,916 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:43:00,917 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:43:00,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2020-12-09 18:43:00,962 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/data/c98aeefc2/3b3a113dc56a4c71944467df83f84d83/FLAGa3134961a [2020-12-09 18:43:01,341 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:43:01,341 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2020-12-09 18:43:01,346 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/data/c98aeefc2/3b3a113dc56a4c71944467df83f84d83/FLAGa3134961a [2020-12-09 18:43:01,356 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/data/c98aeefc2/3b3a113dc56a4c71944467df83f84d83 [2020-12-09 18:43:01,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:43:01,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:43:01,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:43:01,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:43:01,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:43:01,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:43:01" (1/1) ... [2020-12-09 18:43:01,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@274974b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:01, skipping insertion in model container [2020-12-09 18:43:01,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:43:01" (1/1) ... [2020-12-09 18:43:01,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:43:01,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:43:01,502 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/sv-benchmarks/c/float-newlib/float_req_bl_0740.c[1930,1943] [2020-12-09 18:43:01,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:43:01,510 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:43:01,529 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/sv-benchmarks/c/float-newlib/float_req_bl_0740.c[1930,1943] [2020-12-09 18:43:01,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:43:01,540 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:43:01,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:01 WrapperNode [2020-12-09 18:43:01,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:43:01,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:43:01,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:43:01,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:43:01,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:01" (1/1) ... [2020-12-09 18:43:01,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:01" (1/1) ... [2020-12-09 18:43:01,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:43:01,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:43:01,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:43:01,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:43:01,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:01" (1/1) ... [2020-12-09 18:43:01,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:01" (1/1) ... [2020-12-09 18:43:01,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:01" (1/1) ... [2020-12-09 18:43:01,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:01" (1/1) ... [2020-12-09 18:43:01,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:01" (1/1) ... [2020-12-09 18:43:01,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:01" (1/1) ... [2020-12-09 18:43:01,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:01" (1/1) ... [2020-12-09 18:43:01,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:43:01,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:43:01,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:43:01,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:43:01,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/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 [2020-12-09 18:43:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 18:43:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 18:43:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 18:43:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 18:43:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 18:43:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:43:01,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:43:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 18:43:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 18:43:02,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:43:02,032 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-09 18:43:02,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:43:02 BoogieIcfgContainer [2020-12-09 18:43:02,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:43:02,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:43:02,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:43:02,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:43:02,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:43:01" (1/3) ... [2020-12-09 18:43:02,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e0c58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:43:02, skipping insertion in model container [2020-12-09 18:43:02,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:01" (2/3) ... [2020-12-09 18:43:02,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e0c58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:43:02, skipping insertion in model container [2020-12-09 18:43:02,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:43:02" (3/3) ... [2020-12-09 18:43:02,039 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2020-12-09 18:43:02,049 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:43:02,052 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 18:43:02,060 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 18:43:02,077 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:43:02,077 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 18:43:02,077 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:43:02,077 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:43:02,077 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:43:02,077 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:43:02,077 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:43:02,077 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:43:02,086 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-12-09 18:43:02,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 18:43:02,089 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:43:02,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:43:02,090 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:43:02,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:43:02,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1398311657, now seen corresponding path program 1 times [2020-12-09 18:43:02,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:43:02,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508812165] [2020-12-09 18:43:02,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:43:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:43:02,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:43:02,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508812165] [2020-12-09 18:43:02,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:43:02,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 18:43:02,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398533700] [2020-12-09 18:43:02,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 18:43:02,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 18:43:02,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 18:43:02,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 18:43:02,214 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-12-09 18:43:02,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:43:02,226 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2020-12-09 18:43:02,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 18:43:02,227 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-09 18:43:02,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:43:02,232 INFO L225 Difference]: With dead ends: 39 [2020-12-09 18:43:02,233 INFO L226 Difference]: Without dead ends: 18 [2020-12-09 18:43:02,234 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 [2020-12-09 18:43:02,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-12-09 18:43:02,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-12-09 18:43:02,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-09 18:43:02,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2020-12-09 18:43:02,255 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 7 [2020-12-09 18:43:02,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:43:02,255 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-12-09 18:43:02,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 18:43:02,255 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2020-12-09 18:43:02,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 18:43:02,256 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:43:02,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:43:02,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 18:43:02,256 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:43:02,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:43:02,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1668636454, now seen corresponding path program 1 times [2020-12-09 18:43:02,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:43:02,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498266365] [2020-12-09 18:43:02,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:43:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 18:43:02,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 18:43:02,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 18:43:02,306 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 18:43:02,322 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 18:43:02,323 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 18:43:02,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 18:43:02,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:43:02 BoogieIcfgContainer [2020-12-09 18:43:02,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 18:43:02,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 18:43:02,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 18:43:02,341 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 18:43:02,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:43:02" (3/4) ... [2020-12-09 18:43:02,344 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 18:43:02,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 18:43:02,345 INFO L168 Benchmark]: Toolchain (without parser) took 984.74 ms. Allocated memory is still 98.6 MB. Free memory was 70.6 MB in the beginning and 50.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2020-12-09 18:43:02,346 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 98.6 MB. Free memory is still 63.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:43:02,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.48 ms. Allocated memory is still 98.6 MB. Free memory was 70.4 MB in the beginning and 74.4 MB in the end (delta: -4.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 18:43:02,347 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.28 ms. Allocated memory is still 98.6 MB. Free memory was 74.2 MB in the beginning and 72.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:43:02,347 INFO L168 Benchmark]: Boogie Preprocessor took 27.46 ms. Allocated memory is still 98.6 MB. Free memory was 72.6 MB in the beginning and 71.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:43:02,347 INFO L168 Benchmark]: RCFGBuilder took 427.73 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 73.8 MB in the end (delta: -2.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. [2020-12-09 18:43:02,348 INFO L168 Benchmark]: TraceAbstraction took 305.70 ms. Allocated memory is still 98.6 MB. Free memory was 73.4 MB in the beginning and 50.7 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:43:02,348 INFO L168 Benchmark]: Witness Printer took 2.81 ms. Allocated memory is still 98.6 MB. Free memory is still 50.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:43:02,351 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 98.6 MB. Free memory is still 63.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 179.48 ms. Allocated memory is still 98.6 MB. Free memory was 70.4 MB in the beginning and 74.4 MB in the end (delta: -4.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.28 ms. Allocated memory is still 98.6 MB. Free memory was 74.2 MB in the beginning and 72.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.46 ms. Allocated memory is still 98.6 MB. Free memory was 72.6 MB in the beginning and 71.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 427.73 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 73.8 MB in the end (delta: -2.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 305.70 ms. Allocated memory is still 98.6 MB. Free memory was 73.4 MB in the beginning and 50.7 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 2.81 ms. Allocated memory is still 98.6 MB. Free memory is still 50.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 99]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someBinaryArithmeticFLOAToperation at line 32, overapproximation of bitwiseAnd at line 29. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L93] float x = -1.0f / 0.0f; [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L95] float res = __ieee754_sqrtf(x); [L15] return x != x; [L98] COND TRUE !isnan_float(res) [L99] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 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, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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 0.2.0-7b2dab5 [2020-12-09 18:43:04,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:43:04,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:43:04,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:43:04,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:43:04,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:43:04,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:43:04,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:43:04,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:43:04,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:43:04,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:43:04,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:43:04,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:43:04,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:43:04,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:43:04,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:43:04,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:43:04,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:43:04,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:43:04,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:43:04,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:43:04,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:43:04,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:43:04,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:43:04,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:43:04,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:43:04,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:43:04,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:43:04,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:43:04,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:43:04,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:43:04,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:43:04,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:43:04,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:43:04,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:43:04,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:43:04,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:43:04,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:43:04,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:43:04,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:43:04,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:43:04,059 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 18:43:04,087 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:43:04,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:43:04,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:43:04,088 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:43:04,088 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:43:04,088 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:43:04,088 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:43:04,089 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:43:04,089 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:43:04,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:43:04,090 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 18:43:04,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 18:43:04,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:43:04,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:43:04,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:43:04,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:43:04,091 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 18:43:04,091 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 18:43:04,091 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 18:43:04,091 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 18:43:04,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:43:04,092 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:43:04,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:43:04,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:43:04,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 18:43:04,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:43:04,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:43:04,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:43:04,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:43:04,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:43:04,094 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 18:43:04,094 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 18:43:04,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:43:04,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:43:04,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:43:04,094 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_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25f88ce65e61cc7e7d9ef61e43238296440b1f18 [2020-12-09 18:43:04,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:43:04,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:43:04,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:43:04,344 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:43:04,345 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:43:04,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2020-12-09 18:43:04,387 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/data/e3eafd942/ee096b18206c4076a081cfc7aa0203f2/FLAGe351e85e3 [2020-12-09 18:43:04,763 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:43:04,764 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2020-12-09 18:43:04,770 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/data/e3eafd942/ee096b18206c4076a081cfc7aa0203f2/FLAGe351e85e3 [2020-12-09 18:43:04,781 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/data/e3eafd942/ee096b18206c4076a081cfc7aa0203f2 [2020-12-09 18:43:04,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:43:04,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:43:04,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:43:04,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:43:04,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:43:04,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:43:04" (1/1) ... [2020-12-09 18:43:04,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@744efa3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:04, skipping insertion in model container [2020-12-09 18:43:04,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:43:04" (1/1) ... [2020-12-09 18:43:04,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:43:04,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:43:04,953 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/sv-benchmarks/c/float-newlib/float_req_bl_0740.c[1930,1943] [2020-12-09 18:43:04,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:43:04,964 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:43:04,983 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/sv-benchmarks/c/float-newlib/float_req_bl_0740.c[1930,1943] [2020-12-09 18:43:04,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:43:05,000 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:43:05,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:05 WrapperNode [2020-12-09 18:43:05,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:43:05,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:43:05,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:43:05,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:43:05,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:05" (1/1) ... [2020-12-09 18:43:05,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:05" (1/1) ... [2020-12-09 18:43:05,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:43:05,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:43:05,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:43:05,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:43:05,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:05" (1/1) ... [2020-12-09 18:43:05,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:05" (1/1) ... [2020-12-09 18:43:05,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:05" (1/1) ... [2020-12-09 18:43:05,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:05" (1/1) ... [2020-12-09 18:43:05,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:05" (1/1) ... [2020-12-09 18:43:05,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:05" (1/1) ... [2020-12-09 18:43:05,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:05" (1/1) ... [2020-12-09 18:43:05,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:43:05,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:43:05,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:43:05,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:43:05,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/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 [2020-12-09 18:43:05,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 18:43:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 18:43:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-09 18:43:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 18:43:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:43:05,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:43:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-09 18:43:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 18:43:05,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 18:43:06,993 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:43:06,993 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-09 18:43:06,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:43:06 BoogieIcfgContainer [2020-12-09 18:43:06,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:43:06,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:43:06,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:43:06,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:43:06,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:43:04" (1/3) ... [2020-12-09 18:43:06,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7175c470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:43:06, skipping insertion in model container [2020-12-09 18:43:06,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:43:05" (2/3) ... [2020-12-09 18:43:06,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7175c470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:43:06, skipping insertion in model container [2020-12-09 18:43:06,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:43:06" (3/3) ... [2020-12-09 18:43:06,999 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2020-12-09 18:43:07,008 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:43:07,010 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 18:43:07,017 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 18:43:07,032 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:43:07,032 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 18:43:07,032 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:43:07,033 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:43:07,033 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:43:07,033 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:43:07,033 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:43:07,033 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:43:07,041 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-12-09 18:43:07,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 18:43:07,044 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:43:07,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:43:07,044 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:43:07,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:43:07,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-12-09 18:43:07,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:43:07,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438512470] [2020-12-09 18:43:07,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/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 [2020-12-09 18:43:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:43:07,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 18:43:07,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:43:07,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:43:07,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:43:07,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438512470] [2020-12-09 18:43:07,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:43:07,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 18:43:07,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509050427] [2020-12-09 18:43:07,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 18:43:07,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:43:07,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 18:43:07,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 18:43:07,242 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-12-09 18:43:07,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:43:07,253 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2020-12-09 18:43:07,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 18:43:07,254 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-09 18:43:07,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:43:07,260 INFO L225 Difference]: With dead ends: 64 [2020-12-09 18:43:07,260 INFO L226 Difference]: Without dead ends: 30 [2020-12-09 18:43:07,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 18:43:07,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-09 18:43:07,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-09 18:43:07,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-09 18:43:07,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-12-09 18:43:07,284 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-12-09 18:43:07,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:43:07,284 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-12-09 18:43:07,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 18:43:07,284 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-12-09 18:43:07,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 18:43:07,285 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:43:07,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:43:07,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 18:43:07,486 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:43:07,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:43:07,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-12-09 18:43:07,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:43:07,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633468207] [2020-12-09 18:43:07,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/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 [2020-12-09 18:43:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:43:07,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 18:43:07,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:43:07,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:43:07,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:43:07,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633468207] [2020-12-09 18:43:07,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:43:07,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 18:43:07,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005827556] [2020-12-09 18:43:07,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 18:43:07,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:43:07,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 18:43:07,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-09 18:43:07,756 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 7 states. [2020-12-09 18:43:09,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:43:09,431 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2020-12-09 18:43:09,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 18:43:09,432 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-12-09 18:43:09,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:43:09,433 INFO L225 Difference]: With dead ends: 35 [2020-12-09 18:43:09,433 INFO L226 Difference]: Without dead ends: 30 [2020-12-09 18:43:09,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-09 18:43:09,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-09 18:43:09,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-09 18:43:09,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-09 18:43:09,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-12-09 18:43:09,437 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 10 [2020-12-09 18:43:09,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:43:09,437 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-12-09 18:43:09,437 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 18:43:09,437 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2020-12-09 18:43:09,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 18:43:09,437 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:43:09,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:43:09,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 18:43:09,639 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 18:43:09,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:43:09,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1245605874, now seen corresponding path program 1 times [2020-12-09 18:43:09,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 18:43:09,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156026560] [2020-12-09 18:43:09,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/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 [2020-12-09 18:43:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:43:09,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 18:43:09,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 18:43:09,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 18:43:09,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 18:43:09,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156026560] [2020-12-09 18:43:09,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:43:09,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 18:43:09,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684243914] [2020-12-09 18:43:09,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 18:43:09,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 18:43:09,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 18:43:09,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 18:43:09,875 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 5 states. [2020-12-09 18:43:09,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:43:09,965 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2020-12-09 18:43:09,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 18:43:09,965 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-12-09 18:43:09,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:43:09,965 INFO L225 Difference]: With dead ends: 30 [2020-12-09 18:43:09,965 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 18:43:09,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-09 18:43:09,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 18:43:09,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 18:43:09,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 18:43:09,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 18:43:09,966 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-12-09 18:43:09,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:43:09,966 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 18:43:09,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 18:43:09,967 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 18:43:09,967 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 18:43:10,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 18:43:10,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 18:43:10,299 INFO L262 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-12-09 18:43:10,299 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 18:43:10,299 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 18:43:10,299 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2020-12-09 18:43:10,299 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2020-12-09 18:43:10,300 INFO L262 CegarLoopResult]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2020-12-09 18:43:10,300 INFO L265 CegarLoopResult]: At program point L103(lines 86 104) the Hoare annotation is: true [2020-12-09 18:43:10,300 INFO L262 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2020-12-09 18:43:10,300 INFO L258 CegarLoopResult]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2020-12-09 18:43:10,300 INFO L262 CegarLoopResult]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2020-12-09 18:43:10,300 INFO L262 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-12-09 18:43:10,300 INFO L262 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-12-09 18:43:10,300 INFO L262 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-12-09 18:43:10,300 INFO L258 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_sqrtf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= |ULTIMATE.start___ieee754_sqrtf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)))) [2020-12-09 18:43:10,300 INFO L262 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-12-09 18:43:10,301 INFO L262 CegarLoopResult]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2020-12-09 18:43:10,301 INFO L262 CegarLoopResult]: For program point L98(lines 98 101) no Hoare annotation was computed. [2020-12-09 18:43:10,301 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 18:43:10,301 INFO L262 CegarLoopResult]: For program point L57(lines 57 61) no Hoare annotation was computed. [2020-12-09 18:43:10,301 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 99) no Hoare annotation was computed. [2020-12-09 18:43:10,301 INFO L262 CegarLoopResult]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2020-12-09 18:43:10,301 INFO L262 CegarLoopResult]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2020-12-09 18:43:10,301 INFO L258 CegarLoopResult]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_sqrtf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))) [2020-12-09 18:43:10,301 INFO L262 CegarLoopResult]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2020-12-09 18:43:10,301 INFO L262 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2020-12-09 18:43:10,301 INFO L258 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2020-12-09 18:43:10,301 INFO L262 CegarLoopResult]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2020-12-09 18:43:10,302 INFO L262 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-12-09 18:43:10,302 INFO L262 CegarLoopResult]: For program point L66(lines 66 75) no Hoare annotation was computed. [2020-12-09 18:43:10,302 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 18:43:10,302 INFO L258 CegarLoopResult]: At program point L83(lines 19 84) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_sqrtf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= |ULTIMATE.start___ieee754_sqrtf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)))) [2020-12-09 18:43:10,302 INFO L262 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-12-09 18:43:10,302 INFO L262 CegarLoopResult]: For program point L68(lines 68 74) no Hoare annotation was computed. [2020-12-09 18:43:10,308 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,308 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,308 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,313 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,313 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,313 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,313 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,313 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,313 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,313 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,313 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,314 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,315 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,315 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,315 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,315 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,315 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,315 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,318 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,318 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,320 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:43:10 BoogieIcfgContainer [2020-12-09 18:43:10,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 18:43:10,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 18:43:10,322 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 18:43:10,322 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 18:43:10,322 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:43:06" (3/4) ... [2020-12-09 18:43:10,324 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 18:43:10,331 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-09 18:43:10,331 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-09 18:43:10,332 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 18:43:10,332 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 18:43:10,348 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) [2020-12-09 18:43:10,348 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) [2020-12-09 18:43:10,365 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_82aeaee7-cb86-4e4a-b76c-9f922fdd4214/bin/utaipan/witness.graphml [2020-12-09 18:43:10,366 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 18:43:10,367 INFO L168 Benchmark]: Toolchain (without parser) took 5581.76 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 24.7 MB in the beginning and 38.7 MB in the end (delta: -14.0 MB). Peak memory consumption was 314.8 kB. Max. memory is 16.1 GB. [2020-12-09 18:43:10,367 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 48.2 MB. Free memory was 31.0 MB in the beginning and 31.0 MB in the end (delta: 60.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:43:10,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 215.50 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 24.5 MB in the beginning and 45.1 MB in the end (delta: -20.7 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2020-12-09 18:43:10,368 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.26 ms. Allocated memory is still 60.8 MB. Free memory was 44.9 MB in the beginning and 43.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:43:10,368 INFO L168 Benchmark]: Boogie Preprocessor took 26.14 ms. Allocated memory is still 60.8 MB. Free memory was 43.4 MB in the beginning and 41.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:43:10,368 INFO L168 Benchmark]: RCFGBuilder took 1929.91 ms. Allocated memory is still 60.8 MB. Free memory was 41.5 MB in the beginning and 35.4 MB in the end (delta: 6.1 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-12-09 18:43:10,369 INFO L168 Benchmark]: TraceAbstraction took 3325.85 ms. Allocated memory is still 60.8 MB. Free memory was 34.9 MB in the beginning and 42.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-12-09 18:43:10,369 INFO L168 Benchmark]: Witness Printer took 44.10 ms. Allocated memory is still 60.8 MB. Free memory was 42.2 MB in the beginning and 38.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 18:43:10,371 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 48.2 MB. Free memory was 31.0 MB in the beginning and 31.0 MB in the end (delta: 60.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 215.50 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 24.5 MB in the beginning and 45.1 MB in the end (delta: -20.7 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.26 ms. Allocated memory is still 60.8 MB. Free memory was 44.9 MB in the beginning and 43.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.14 ms. Allocated memory is still 60.8 MB. Free memory was 43.4 MB in the beginning and 41.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1929.91 ms. Allocated memory is still 60.8 MB. Free memory was 41.5 MB in the beginning and 35.4 MB in the end (delta: 6.1 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3325.85 ms. Allocated memory is still 60.8 MB. Free memory was 34.9 MB in the beginning and 42.2 MB in the end (delta: -7.3 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * Witness Printer took 44.10 ms. Allocated memory is still 60.8 MB. Free memory was 42.2 MB in the beginning and 38.7 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 99]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2020-12-09 18:43:10,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant [2020-12-09 18:43:10,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant [2020-12-09 18:43:10,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 18:43:10,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 85 SDslu, 96 SDs, 0 SdLazy, 41 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 100 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 4 QuantifiedInterpolants, 1565 SizeOfPredicates, 16 NumberOfNonLiveVariables, 131 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...