./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.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_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/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 3a46db52b19fb11eeacebca884b6de40c52cb082 ......................................................................................................................................................................................................................................................................................................... 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_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/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 3a46db52b19fb11eeacebca884b6de40c52cb082 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 12:36:02,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:36:02,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:36:02,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:36:02,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:36:02,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:36:02,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:36:02,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:36:02,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:36:02,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:36:02,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:36:02,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:36:02,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:36:02,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:36:02,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:36:02,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:36:02,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:36:02,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:36:02,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:36:02,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:36:02,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:36:02,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:36:02,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:36:02,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:36:02,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:36:02,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:36:02,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:36:02,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:36:02,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:36:02,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:36:02,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:36:02,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:36:02,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:36:02,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:36:02,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:36:02,815 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:36:02,816 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:36:02,816 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:36:02,816 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:36:02,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:36:02,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:36:02,820 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-03 12:36:02,856 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:36:02,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:36:02,858 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:36:02,858 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:36:02,859 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:36:02,859 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:36:02,859 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:36:02,859 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:36:02,860 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:36:02,860 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:36:02,861 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:36:02,861 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:36:02,862 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:36:02,862 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:36:02,862 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:36:02,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:36:02,863 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:36:02,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:36:02,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:36:02,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:36:02,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:36:02,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:36:02,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:36:02,865 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:36:02,865 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:36:02,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:36:02,866 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:36:02,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:36:02,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:36:02,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:36:02,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:36:02,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:36:02,869 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:36:02,869 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:36:02,869 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:36:02,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:36:02,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:36:02,870 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:36:02,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:36:02,870 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_b4b62a4e-8416-4576-b38b-31ed890ceb35/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-12-03 12:36:03,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:36:03,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:36:03,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:36:03,166 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:36:03,167 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:36:03,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-12-03 12:36:03,222 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/data/0e9e0b501/d4bc5e2f4f3749b6a5bcc3e1183b6df0/FLAG955687cd6 [2020-12-03 12:36:03,741 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:36:03,741 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-12-03 12:36:03,748 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/data/0e9e0b501/d4bc5e2f4f3749b6a5bcc3e1183b6df0/FLAG955687cd6 [2020-12-03 12:36:04,122 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/data/0e9e0b501/d4bc5e2f4f3749b6a5bcc3e1183b6df0 [2020-12-03 12:36:04,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:36:04,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:36:04,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:36:04,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:36:04,134 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:36:04,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:36:04" (1/1) ... [2020-12-03 12:36:04,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aacd1b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:04, skipping insertion in model container [2020-12-03 12:36:04,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:36:04" (1/1) ... [2020-12-03 12:36:04,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:36:04,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:36:04,392 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_b4b62a4e-8416-4576-b38b-31ed890ceb35/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2020-12-03 12:36:04,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:36:04,410 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:36:04,436 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_b4b62a4e-8416-4576-b38b-31ed890ceb35/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2020-12-03 12:36:04,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:36:04,451 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:36:04,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:04 WrapperNode [2020-12-03 12:36:04,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:36:04,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:36:04,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:36:04,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:36:04,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:04" (1/1) ... [2020-12-03 12:36:04,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:04" (1/1) ... [2020-12-03 12:36:04,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:36:04,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:36:04,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:36:04,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:36:04,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:04" (1/1) ... [2020-12-03 12:36:04,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:04" (1/1) ... [2020-12-03 12:36:04,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:04" (1/1) ... [2020-12-03 12:36:04,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:04" (1/1) ... [2020-12-03 12:36:04,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:04" (1/1) ... [2020-12-03 12:36:04,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:04" (1/1) ... [2020-12-03 12:36:04,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:04" (1/1) ... [2020-12-03 12:36:04,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:36:04,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:36:04,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:36:04,554 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:36:04,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/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 [2020-12-03 12:36:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 12:36:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:36:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-03 12:36:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-03 12:36:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-03 12:36:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:36:04,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:36:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-03 12:36:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 12:36:05,391 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:36:05,391 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-03 12:36:05,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:36:05 BoogieIcfgContainer [2020-12-03 12:36:05,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:36:05,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:36:05,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:36:05,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:36:05,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:36:04" (1/3) ... [2020-12-03 12:36:05,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fa810f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:36:05, skipping insertion in model container [2020-12-03 12:36:05,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:04" (2/3) ... [2020-12-03 12:36:05,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fa810f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:36:05, skipping insertion in model container [2020-12-03 12:36:05,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:36:05" (3/3) ... [2020-12-03 12:36:05,420 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2020-12-03 12:36:05,435 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:36:05,438 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 12:36:05,450 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 12:36:05,488 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:36:05,488 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:36:05,488 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:36:05,488 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:36:05,489 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:36:05,489 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:36:05,489 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:36:05,489 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:36:05,502 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-12-03 12:36:05,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-03 12:36:05,505 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:05,506 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:05,506 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:36:05,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:05,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1398311657, now seen corresponding path program 1 times [2020-12-03 12:36:05,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:05,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878873259] [2020-12-03 12:36:05,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:05,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:05,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878873259] [2020-12-03 12:36:05,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:05,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:36:05,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364541300] [2020-12-03 12:36:05,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-03 12:36:05,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:36:05,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-03 12:36:05,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 12:36:05,686 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-12-03 12:36:05,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:05,705 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2020-12-03 12:36:05,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-03 12:36:05,707 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-03 12:36:05,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:05,716 INFO L225 Difference]: With dead ends: 39 [2020-12-03 12:36:05,717 INFO L226 Difference]: Without dead ends: 18 [2020-12-03 12:36:05,720 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 [2020-12-03 12:36:05,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-12-03 12:36:05,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-12-03 12:36:05,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-03 12:36:05,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2020-12-03 12:36:05,756 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 7 [2020-12-03 12:36:05,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:05,757 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-12-03 12:36:05,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-03 12:36:05,757 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2020-12-03 12:36:05,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 12:36:05,758 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:05,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:05,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:36:05,759 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:36:05,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:05,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1668636454, now seen corresponding path program 1 times [2020-12-03 12:36:05,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:36:05,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732219054] [2020-12-03 12:36:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:36:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:36:05,815 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:36:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:36:05,851 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:36:05,875 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-03 12:36:05,875 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-03 12:36:05,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 12:36:05,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:36:05 BoogieIcfgContainer [2020-12-03 12:36:05,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:36:05,904 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:36:05,904 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:36:05,904 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:36:05,905 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:36:05" (3/4) ... [2020-12-03 12:36:05,908 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-03 12:36:05,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:36:05,911 INFO L168 Benchmark]: Toolchain (without parser) took 1783.36 ms. Allocated memory is still 117.4 MB. Free memory was 88.2 MB in the beginning and 71.9 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:05,912 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 41.4 MB in the beginning and 41.4 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:36:05,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.16 ms. Allocated memory is still 117.4 MB. Free memory was 87.9 MB in the beginning and 93.4 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:05,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.66 ms. Allocated memory is still 117.4 MB. Free memory was 92.9 MB in the beginning and 91.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:05,915 INFO L168 Benchmark]: Boogie Preprocessor took 58.80 ms. Allocated memory is still 117.4 MB. Free memory was 91.3 MB in the beginning and 90.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:36:05,915 INFO L168 Benchmark]: RCFGBuilder took 840.82 ms. Allocated memory is still 117.4 MB. Free memory was 90.0 MB in the beginning and 94.2 MB in the end (delta: -4.2 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:05,916 INFO L168 Benchmark]: TraceAbstraction took 506.48 ms. Allocated memory is still 117.4 MB. Free memory was 93.6 MB in the beginning and 71.9 MB in the end (delta: 21.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:05,917 INFO L168 Benchmark]: Witness Printer took 5.00 ms. Allocated memory is still 117.4 MB. Free memory is still 71.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:36:05,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 41.4 MB in the beginning and 41.4 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 323.16 ms. Allocated memory is still 117.4 MB. Free memory was 87.9 MB in the beginning and 93.4 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.66 ms. Allocated memory is still 117.4 MB. Free memory was 92.9 MB in the beginning and 91.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.80 ms. Allocated memory is still 117.4 MB. Free memory was 91.3 MB in the beginning and 90.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 840.82 ms. Allocated memory is still 117.4 MB. Free memory was 90.0 MB in the beginning and 94.2 MB in the end (delta: -4.2 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 506.48 ms. Allocated memory is still 117.4 MB. Free memory was 93.6 MB in the beginning and 71.9 MB in the end (delta: 21.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.00 ms. Allocated memory is still 117.4 MB. Free memory is still 71.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 98]: 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 = 0.0f / 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] [L94] float res = __ieee754_sqrtf(x); [L15] return x != x; [L97] COND TRUE !isnan_float(res) [L98] 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: 0.3s, 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 [2020-12-03 12:36:08,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:36:08,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:36:08,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:36:08,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:36:08,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:36:08,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:36:08,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:36:08,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:36:08,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:36:08,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:36:08,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:36:08,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:36:08,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:36:08,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:36:08,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:36:08,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:36:08,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:36:08,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:36:08,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:36:08,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:36:08,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:36:08,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:36:08,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:36:08,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:36:08,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:36:08,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:36:08,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:36:08,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:36:08,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:36:08,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:36:08,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:36:08,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:36:08,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:36:08,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:36:08,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:36:08,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:36:08,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:36:08,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:36:08,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:36:08,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:36:08,793 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-03 12:36:08,848 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:36:08,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:36:08,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:36:08,851 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:36:08,851 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:36:08,851 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:36:08,852 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:36:08,852 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:36:08,852 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:36:08,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:36:08,855 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:36:08,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:36:08,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:36:08,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:36:08,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:36:08,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:36:08,856 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:36:08,856 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-03 12:36:08,857 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-03 12:36:08,857 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:36:08,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:36:08,857 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:36:08,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:36:08,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:36:08,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 12:36:08,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:36:08,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:36:08,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:36:08,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:36:08,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:36:08,859 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-03 12:36:08,860 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-03 12:36:08,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:36:08,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:36:08,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:36:08,861 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_b4b62a4e-8416-4576-b38b-31ed890ceb35/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-12-03 12:36:09,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:36:09,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:36:09,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:36:09,326 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:36:09,331 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:36:09,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-12-03 12:36:09,409 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/data/83985d1a0/79fd6a6ae05942548a6039133950aa46/FLAG6e195c079 [2020-12-03 12:36:10,099 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:36:10,103 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-12-03 12:36:10,113 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/data/83985d1a0/79fd6a6ae05942548a6039133950aa46/FLAG6e195c079 [2020-12-03 12:36:10,457 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/data/83985d1a0/79fd6a6ae05942548a6039133950aa46 [2020-12-03 12:36:10,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:36:10,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:36:10,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:36:10,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:36:10,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:36:10,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:36:10" (1/1) ... [2020-12-03 12:36:10,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66f0a9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:10, skipping insertion in model container [2020-12-03 12:36:10,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:36:10" (1/1) ... [2020-12-03 12:36:10,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:36:10,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:36:10,673 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_b4b62a4e-8416-4576-b38b-31ed890ceb35/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2020-12-03 12:36:10,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:36:10,699 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:36:10,778 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_b4b62a4e-8416-4576-b38b-31ed890ceb35/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2020-12-03 12:36:10,779 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:36:10,812 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:36:10,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:10 WrapperNode [2020-12-03 12:36:10,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:36:10,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:36:10,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:36:10,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:36:10,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:10" (1/1) ... [2020-12-03 12:36:10,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:10" (1/1) ... [2020-12-03 12:36:10,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:36:10,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:36:10,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:36:10,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:36:10,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:10" (1/1) ... [2020-12-03 12:36:10,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:10" (1/1) ... [2020-12-03 12:36:10,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:10" (1/1) ... [2020-12-03 12:36:10,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:10" (1/1) ... [2020-12-03 12:36:10,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:10" (1/1) ... [2020-12-03 12:36:10,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:10" (1/1) ... [2020-12-03 12:36:10,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:10" (1/1) ... [2020-12-03 12:36:10,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:36:10,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:36:10,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:36:10,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:36:10,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/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 [2020-12-03 12:36:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-03 12:36:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:36:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-03 12:36:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-03 12:36:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:36:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:36:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-03 12:36:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-03 12:36:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 12:36:14,294 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:36:14,294 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-03 12:36:14,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:36:14 BoogieIcfgContainer [2020-12-03 12:36:14,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:36:14,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:36:14,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:36:14,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:36:14,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:36:10" (1/3) ... [2020-12-03 12:36:14,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f62706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:36:14, skipping insertion in model container [2020-12-03 12:36:14,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:36:10" (2/3) ... [2020-12-03 12:36:14,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f62706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:36:14, skipping insertion in model container [2020-12-03 12:36:14,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:36:14" (3/3) ... [2020-12-03 12:36:14,307 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2020-12-03 12:36:14,323 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:36:14,327 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-03 12:36:14,339 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-03 12:36:14,364 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:36:14,365 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:36:14,365 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:36:14,365 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:36:14,365 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:36:14,366 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:36:14,366 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:36:14,366 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:36:14,395 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-12-03 12:36:14,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-03 12:36:14,402 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:14,403 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:14,403 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:36:14,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:14,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-12-03 12:36:14,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:36:14,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790123954] [2020-12-03 12:36:14,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/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 [2020-12-03 12:36:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:14,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-03 12:36:14,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:36:14,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:14,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:36:14,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790123954] [2020-12-03 12:36:14,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:14,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:36:14,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402671368] [2020-12-03 12:36:14,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-03 12:36:14,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:36:14,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-03 12:36:14,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-03 12:36:14,812 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-12-03 12:36:14,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:14,841 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2020-12-03 12:36:14,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-03 12:36:14,843 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-03 12:36:14,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:14,856 INFO L225 Difference]: With dead ends: 64 [2020-12-03 12:36:14,856 INFO L226 Difference]: Without dead ends: 30 [2020-12-03 12:36:14,861 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 [2020-12-03 12:36:14,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-03 12:36:14,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-03 12:36:14,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-03 12:36:14,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-12-03 12:36:14,909 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-12-03 12:36:14,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:14,910 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-12-03 12:36:14,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-03 12:36:14,910 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-12-03 12:36:14,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 12:36:14,912 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:14,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:15,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-03 12:36:15,126 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:36:15,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:15,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-12-03 12:36:15,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:36:15,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747199919] [2020-12-03 12:36:15,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/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 [2020-12-03 12:36:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:15,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-03 12:36:15,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:36:15,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:15,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:36:15,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [747199919] [2020-12-03 12:36:15,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:15,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 12:36:15,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781360837] [2020-12-03 12:36:15,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-03 12:36:15,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:36:15,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-03 12:36:15,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-03 12:36:15,582 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 7 states. [2020-12-03 12:36:17,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:17,459 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2020-12-03 12:36:17,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-03 12:36:17,460 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2020-12-03 12:36:17,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:17,461 INFO L225 Difference]: With dead ends: 35 [2020-12-03 12:36:17,461 INFO L226 Difference]: Without dead ends: 30 [2020-12-03 12:36:17,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-03 12:36:17,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-03 12:36:17,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-03 12:36:17,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-03 12:36:17,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-12-03 12:36:17,467 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 10 [2020-12-03 12:36:17,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:17,468 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-12-03 12:36:17,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-03 12:36:17,468 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-12-03 12:36:17,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-03 12:36:17,469 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:36:17,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:36:17,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-03 12:36:17,687 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:36:17,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:36:17,687 INFO L82 PathProgramCache]: Analyzing trace with hash 591854048, now seen corresponding path program 1 times [2020-12-03 12:36:17,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:36:17,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067024425] [2020-12-03 12:36:17,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/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 [2020-12-03 12:36:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:36:17,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-03 12:36:17,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:36:18,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:36:18,035 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:36:18,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067024425] [2020-12-03 12:36:18,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:36:18,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:36:18,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590265523] [2020-12-03 12:36:18,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:36:18,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:36:18,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:36:18,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:36:18,046 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-12-03 12:36:18,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:36:18,191 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-12-03 12:36:18,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:36:18,191 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-12-03 12:36:18,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:36:18,191 INFO L225 Difference]: With dead ends: 30 [2020-12-03 12:36:18,192 INFO L226 Difference]: Without dead ends: 0 [2020-12-03 12:36:18,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-03 12:36:18,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-03 12:36:18,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-03 12:36:18,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-03 12:36:18,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-03 12:36:18,194 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-12-03 12:36:18,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:36:18,194 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-03 12:36:18,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:36:18,195 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-03 12:36:18,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 12:36:18,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-03 12:36:18,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-03 12:36:18,549 INFO L265 CegarLoopResult]: At program point L102(lines 86 103) the Hoare annotation is: true [2020-12-03 12:36:18,549 INFO L262 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-12-03 12:36:18,549 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-03 12:36:18,549 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-03 12:36:18,549 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2020-12-03 12:36:18,550 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2020-12-03 12:36:18,550 INFO L262 CegarLoopResult]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2020-12-03 12:36:18,550 INFO L262 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2020-12-03 12:36:18,550 INFO L258 CegarLoopResult]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2020-12-03 12:36:18,550 INFO L262 CegarLoopResult]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2020-12-03 12:36:18,550 INFO L262 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-12-03 12:36:18,550 INFO L262 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-12-03 12:36:18,551 INFO L262 CegarLoopResult]: For program point L97(lines 97 100) no Hoare annotation was computed. [2020-12-03 12:36:18,551 INFO L262 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-12-03 12:36:18,551 INFO L258 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrtf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-12-03 12:36:18,551 INFO L262 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-12-03 12:36:18,551 INFO L262 CegarLoopResult]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2020-12-03 12:36:18,551 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-03 12:36:18,551 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-03 12:36:18,552 INFO L262 CegarLoopResult]: For program point L57(lines 57 61) no Hoare annotation was computed. [2020-12-03 12:36:18,552 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2020-12-03 12:36:18,552 INFO L262 CegarLoopResult]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2020-12-03 12:36:18,552 INFO L262 CegarLoopResult]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2020-12-03 12:36:18,552 INFO L258 CegarLoopResult]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-12-03 12:36:18,552 INFO L262 CegarLoopResult]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2020-12-03 12:36:18,552 INFO L262 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2020-12-03 12:36:18,552 INFO L258 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2020-12-03 12:36:18,553 INFO L262 CegarLoopResult]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2020-12-03 12:36:18,553 INFO L262 CegarLoopResult]: For program point L66(lines 66 75) no Hoare annotation was computed. [2020-12-03 12:36:18,553 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-03 12:36:18,553 INFO L258 CegarLoopResult]: At program point L83(lines 19 84) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrtf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-12-03 12:36:18,553 INFO L262 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-12-03 12:36:18,553 INFO L262 CegarLoopResult]: For program point L68(lines 68 74) no Hoare annotation was computed. [2020-12-03 12:36:18,562 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,564 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,564 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,564 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,570 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,570 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,570 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,571 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,572 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,574 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,575 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,575 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,575 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,575 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,576 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,577 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,577 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,577 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,578 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,578 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,578 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:36:18 BoogieIcfgContainer [2020-12-03 12:36:18,580 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:36:18,581 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:36:18,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:36:18,582 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:36:18,582 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:36:14" (3/4) ... [2020-12-03 12:36:18,585 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 12:36:18,598 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-03 12:36:18,598 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-03 12:36:18,599 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:36:18,600 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:36:18,627 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-12-03 12:36:18,629 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-12-03 12:36:18,665 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b4b62a4e-8416-4576-b38b-31ed890ceb35/bin/utaipan/witness.graphml [2020-12-03 12:36:18,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:36:18,672 INFO L168 Benchmark]: Toolchain (without parser) took 8209.52 ms. Allocated memory was 56.6 MB in the beginning and 79.7 MB in the end (delta: 23.1 MB). Free memory was 35.7 MB in the beginning and 39.5 MB in the end (delta: -3.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:18,673 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 56.6 MB. Free memory was 38.7 MB in the beginning and 38.6 MB in the end (delta: 42.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:36:18,675 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.88 ms. Allocated memory is still 56.6 MB. Free memory was 35.5 MB in the beginning and 38.7 MB in the end (delta: -3.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:18,677 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.46 ms. Allocated memory is still 56.6 MB. Free memory was 38.7 MB in the beginning and 36.9 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:36:18,678 INFO L168 Benchmark]: Boogie Preprocessor took 87.92 ms. Allocated memory is still 56.6 MB. Free memory was 36.9 MB in the beginning and 35.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:36:18,678 INFO L168 Benchmark]: RCFGBuilder took 3312.32 ms. Allocated memory is still 56.6 MB. Free memory was 35.3 MB in the beginning and 28.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:18,679 INFO L168 Benchmark]: TraceAbstraction took 4282.28 ms. Allocated memory was 56.6 MB in the beginning and 79.7 MB in the end (delta: 23.1 MB). Free memory was 28.4 MB in the beginning and 43.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:18,679 INFO L168 Benchmark]: Witness Printer took 89.44 ms. Allocated memory is still 79.7 MB. Free memory was 43.1 MB in the beginning and 39.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-03 12:36:18,681 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 56.6 MB. Free memory was 38.7 MB in the beginning and 38.6 MB in the end (delta: 42.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 349.88 ms. Allocated memory is still 56.6 MB. Free memory was 35.5 MB in the beginning and 38.7 MB in the end (delta: -3.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.46 ms. Allocated memory is still 56.6 MB. Free memory was 38.7 MB in the beginning and 36.9 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 87.92 ms. Allocated memory is still 56.6 MB. Free memory was 36.9 MB in the beginning and 35.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 3312.32 ms. Allocated memory is still 56.6 MB. Free memory was 35.3 MB in the beginning and 28.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4282.28 ms. Allocated memory was 56.6 MB in the beginning and 79.7 MB in the end (delta: 23.1 MB). Free memory was 28.4 MB in the beginning and 43.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Witness Printer took 89.44 ms. Allocated memory is still 79.7 MB. Free memory was 43.1 MB in the beginning and 39.5 MB in the end (delta: 3.6 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 98]: 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 [2020-12-03 12:36:18,690 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,691 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,691 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,691 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,691 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,692 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2020-12-03 12:36:18,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,701 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant [2020-12-03 12:36:18,702 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,707 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,710 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,711 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-03 12:36:18,714 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 85 SDslu, 96 SDs, 0 SdLazy, 40 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s 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, 73 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 4 QuantifiedInterpolants, 2125 SizeOfPredicates, 16 NumberOfNonLiveVariables, 154 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...