./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/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 01f5d92913440f76bf2a724738adcdb83e463632 ............................................................................................................................................................................................................................................................................................................................. 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_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/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 01f5d92913440f76bf2a724738adcdb83e463632 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:56:21,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:56:21,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:56:21,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:56:21,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:56:21,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:56:21,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:56:21,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:56:21,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:56:21,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:56:21,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:56:21,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:56:21,650 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:56:21,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:56:21,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:56:21,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:56:21,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:56:21,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:56:21,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:56:21,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:56:21,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:56:21,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:56:21,673 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:56:21,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:56:21,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:56:21,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:56:21,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:56:21,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:56:21,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:56:21,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:56:21,695 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:56:21,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:56:21,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:56:21,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:56:21,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:56:21,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:56:21,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:56:21,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:56:21,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:56:21,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:56:21,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:56:21,710 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:56:21,759 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:56:21,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:56:21,761 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:56:21,762 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:56:21,762 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:56:21,762 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:56:21,762 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:56:21,763 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:56:21,763 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:56:21,763 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:56:21,764 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:56:21,765 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:56:21,765 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:56:21,765 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:56:21,765 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:56:21,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:56:21,766 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:56:21,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:56:21,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:56:21,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:56:21,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:56:21,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:56:21,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:56:21,768 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:56:21,768 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:56:21,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:56:21,769 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:56:21,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:56:21,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:56:21,771 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:56:21,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:56:21,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:56:21,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:56:21,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:56:21,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:56:21,773 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:56:21,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:56:21,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:56:21,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:56:21,774 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:56:21,775 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_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01f5d92913440f76bf2a724738adcdb83e463632 [2020-11-30 01:56:22,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:56:22,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:56:22,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:56:22,110 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:56:22,111 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:56:22,112 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2020-11-30 01:56:22,194 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/data/76e36a2d7/78fe36f90a194ed9a2c6868bf95453ec/FLAGe604e5512 [2020-11-30 01:56:22,734 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:56:22,741 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2020-11-30 01:56:22,756 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/data/76e36a2d7/78fe36f90a194ed9a2c6868bf95453ec/FLAGe604e5512 [2020-11-30 01:56:23,091 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/data/76e36a2d7/78fe36f90a194ed9a2c6868bf95453ec [2020-11-30 01:56:23,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:56:23,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:56:23,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:56:23,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:56:23,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:56:23,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:56:23" (1/1) ... [2020-11-30 01:56:23,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@368e2996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:23, skipping insertion in model container [2020-11-30 01:56:23,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:56:23" (1/1) ... [2020-11-30 01:56:23,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:56:23,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:56:23,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:56:23,423 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:56:23,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:56:23,496 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:56:23,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:23 WrapperNode [2020-11-30 01:56:23,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:56:23,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:56:23,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:56:23,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:56:23,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:23" (1/1) ... [2020-11-30 01:56:23,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:23" (1/1) ... [2020-11-30 01:56:23,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:56:23,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:56:23,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:56:23,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:56:23,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:23" (1/1) ... [2020-11-30 01:56:23,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:23" (1/1) ... [2020-11-30 01:56:23,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:23" (1/1) ... [2020-11-30 01:56:23,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:23" (1/1) ... [2020-11-30 01:56:23,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:23" (1/1) ... [2020-11-30 01:56:23,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:23" (1/1) ... [2020-11-30 01:56:23,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:23" (1/1) ... [2020-11-30 01:56:23,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:56:23,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:56:23,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:56:23,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:56:23,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:56:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:56:23,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:56:23,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 01:56:23,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:56:23,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 01:56:23,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:56:23,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:56:23,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:56:23,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-30 01:56:23,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:56:24,494 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:56:24,495 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-30 01:56:24,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:56:24 BoogieIcfgContainer [2020-11-30 01:56:24,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:56:24,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:56:24,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:56:24,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:56:24,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:56:23" (1/3) ... [2020-11-30 01:56:24,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e60538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:56:24, skipping insertion in model container [2020-11-30 01:56:24,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:23" (2/3) ... [2020-11-30 01:56:24,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e60538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:56:24, skipping insertion in model container [2020-11-30 01:56:24,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:56:24" (3/3) ... [2020-11-30 01:56:24,509 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2020-11-30 01:56:24,520 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:56:24,524 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:56:24,536 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:56:24,575 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:56:24,576 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:56:24,576 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:56:24,576 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:56:24,576 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:56:24,576 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:56:24,576 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:56:24,577 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:56:24,588 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-11-30 01:56:24,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:56:24,595 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:56:24,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:56:24,597 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:56:24,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:56:24,605 INFO L82 PathProgramCache]: Analyzing trace with hash 2146688080, now seen corresponding path program 1 times [2020-11-30 01:56:24,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:56:24,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180988365] [2020-11-30 01:56:24,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:56:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:56:24,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:56:24,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180988365] [2020-11-30 01:56:24,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:56:24,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:56:24,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98646373] [2020-11-30 01:56:24,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:56:24,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:56:24,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:56:24,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:56:24,799 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-11-30 01:56:24,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:56:24,811 INFO L93 Difference]: Finished difference Result 41 states and 61 transitions. [2020-11-30 01:56:24,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:56:24,813 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-30 01:56:24,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:56:24,821 INFO L225 Difference]: With dead ends: 41 [2020-11-30 01:56:24,821 INFO L226 Difference]: Without dead ends: 19 [2020-11-30 01:56:24,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:56:24,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-30 01:56:24,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-30 01:56:24,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-30 01:56:24,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2020-11-30 01:56:24,868 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 7 [2020-11-30 01:56:24,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:56:24,869 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2020-11-30 01:56:24,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:56:24,869 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-11-30 01:56:24,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:56:24,869 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:56:24,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:56:24,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:56:24,870 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:56:24,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:56:24,873 INFO L82 PathProgramCache]: Analyzing trace with hash -46519351, now seen corresponding path program 1 times [2020-11-30 01:56:24,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:56:24,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651941827] [2020-11-30 01:56:24,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:56:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:56:24,967 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:56:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:56:25,022 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:56:25,081 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 01:56:25,081 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:56:25,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:56:25,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:56:25 BoogieIcfgContainer [2020-11-30 01:56:25,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:56:25,128 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:56:25,128 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:56:25,129 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:56:25,129 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:56:24" (3/4) ... [2020-11-30 01:56:25,132 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:56:25,132 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:56:25,134 INFO L168 Benchmark]: Toolchain (without parser) took 2036.14 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 68.4 MB in the beginning and 57.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:25,135 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 98.6 MB. Free memory was 58.0 MB in the beginning and 57.9 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:56:25,136 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.48 ms. Allocated memory is still 98.6 MB. Free memory was 68.1 MB in the beginning and 73.2 MB in the end (delta: -5.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:25,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.25 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 71.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:25,157 INFO L168 Benchmark]: Boogie Preprocessor took 67.83 ms. Allocated memory is still 98.6 MB. Free memory was 71.0 MB in the beginning and 69.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:25,158 INFO L168 Benchmark]: RCFGBuilder took 836.64 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 69.0 MB in the beginning and 86.4 MB in the end (delta: -17.4 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:25,159 INFO L168 Benchmark]: TraceAbstraction took 629.02 ms. Allocated memory is still 119.5 MB. Free memory was 86.4 MB in the beginning and 58.0 MB in the end (delta: 28.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:56:25,161 INFO L168 Benchmark]: Witness Printer took 4.06 ms. Allocated memory is still 119.5 MB. Free memory was 58.0 MB in the beginning and 57.7 MB in the end (delta: 372.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:56:25,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 98.6 MB. Free memory was 58.0 MB in the beginning and 57.9 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 396.48 ms. Allocated memory is still 98.6 MB. Free memory was 68.1 MB in the beginning and 73.2 MB in the end (delta: -5.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.25 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 71.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.83 ms. Allocated memory is still 98.6 MB. Free memory was 71.0 MB in the beginning and 69.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 836.64 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 69.0 MB in the beginning and 86.4 MB in the end (delta: -17.4 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 629.02 ms. Allocated memory is still 119.5 MB. Free memory was 86.4 MB in the beginning and 58.0 MB in the end (delta: 28.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.06 ms. Allocated memory is still 119.5 MB. Free memory was 58.0 MB in the beginning and 57.7 MB in the end (delta: 372.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 67, overapproximation of someBinaryArithmeticFLOAToperation at line 70. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L48-L52] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L129] float x = 0.0f / 0.0f; [L59] float w, s1, s2, z; [L60] __int32_t ix, hx, id; VAL [aT_atan={11:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] ieee_float_shape_type gf_u; [L64] gf_u.value = (x) [L65] EXPR gf_u.word [L65] (hx) = gf_u.word [L67] ix = hx & 0x7fffffff VAL [aT_atan={11:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L68] COND TRUE ix >= 0x50800000 [L69] COND TRUE ((ix) > 0x7f800000L) [L70] return x + x; VAL [aT_atan={11:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L130] float res = atan_float(x); [L17] return x != x; [L133] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0610.c", 3, "reach_error") VAL [aT_atan={11:0}, atanhi_atan={6:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 24 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=21occurred 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, 0.1s 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-a4ecdab [2020-11-30 01:56:27,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:56:27,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:56:27,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:56:27,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:56:27,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:56:27,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:56:27,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:56:27,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:56:27,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:56:27,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:56:27,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:56:27,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:56:27,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:56:27,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:56:27,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:56:27,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:56:27,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:56:27,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:56:27,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:56:27,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:56:27,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:56:27,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:56:27,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:56:27,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:56:27,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:56:27,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:56:27,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:56:27,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:56:27,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:56:27,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:56:27,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:56:27,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:56:27,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:56:27,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:56:27,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:56:27,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:56:27,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:56:27,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:56:27,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:56:27,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:56:27,885 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 01:56:27,941 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:56:27,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:56:27,943 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:56:27,944 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:56:27,944 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:56:27,944 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:56:27,944 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:56:27,944 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:56:27,945 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:56:27,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:56:27,947 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:56:27,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:56:27,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:56:27,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:56:27,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:56:27,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:56:27,948 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:56:27,948 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:56:27,949 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:56:27,949 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:56:27,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:56:27,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:56:27,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:56:27,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:56:27,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:56:27,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:56:27,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:56:27,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:56:27,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:56:27,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:56:27,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:56:27,951 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 01:56:27,951 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:56:27,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:56:27,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:56:27,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:56:27,952 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_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01f5d92913440f76bf2a724738adcdb83e463632 [2020-11-30 01:56:28,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:56:28,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:56:28,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:56:28,417 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:56:28,418 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:56:28,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2020-11-30 01:56:28,500 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/data/89a21f9d6/86d89c9d2c65419581d382859ad34e7a/FLAGdada174a1 [2020-11-30 01:56:29,145 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:56:29,150 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2020-11-30 01:56:29,160 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/data/89a21f9d6/86d89c9d2c65419581d382859ad34e7a/FLAGdada174a1 [2020-11-30 01:56:29,488 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/data/89a21f9d6/86d89c9d2c65419581d382859ad34e7a [2020-11-30 01:56:29,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:56:29,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:56:29,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:56:29,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:56:29,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:56:29,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:56:29" (1/1) ... [2020-11-30 01:56:29,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6884a093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:29, skipping insertion in model container [2020-11-30 01:56:29,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:56:29" (1/1) ... [2020-11-30 01:56:29,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:56:29,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:56:29,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:56:29,797 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:56:29,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:56:29,935 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:56:29,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:29 WrapperNode [2020-11-30 01:56:29,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:56:29,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:56:29,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:56:29,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:56:29,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:29" (1/1) ... [2020-11-30 01:56:29,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:29" (1/1) ... [2020-11-30 01:56:30,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:56:30,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:56:30,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:56:30,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:56:30,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:29" (1/1) ... [2020-11-30 01:56:30,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:29" (1/1) ... [2020-11-30 01:56:30,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:29" (1/1) ... [2020-11-30 01:56:30,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:29" (1/1) ... [2020-11-30 01:56:30,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:29" (1/1) ... [2020-11-30 01:56:30,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:29" (1/1) ... [2020-11-30 01:56:30,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:29" (1/1) ... [2020-11-30 01:56:30,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:56:30,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:56:30,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:56:30,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:56:30,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:56:30,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-30 01:56:30,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:56:30,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:56:30,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 01:56:30,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 01:56:30,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:56:30,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:56:30,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 01:56:30,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 01:56:30,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:56:38,092 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:56:38,093 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-30 01:56:38,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:56:38 BoogieIcfgContainer [2020-11-30 01:56:38,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:56:38,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:56:38,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:56:38,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:56:38,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:56:29" (1/3) ... [2020-11-30 01:56:38,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516b21da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:56:38, skipping insertion in model container [2020-11-30 01:56:38,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:56:29" (2/3) ... [2020-11-30 01:56:38,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516b21da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:56:38, skipping insertion in model container [2020-11-30 01:56:38,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:56:38" (3/3) ... [2020-11-30 01:56:38,103 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2020-11-30 01:56:38,113 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:56:38,118 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:56:38,130 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:56:38,155 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:56:38,156 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:56:38,156 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:56:38,156 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:56:38,156 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:56:38,157 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:56:38,157 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:56:38,157 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:56:38,170 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-30 01:56:38,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:56:38,175 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:56:38,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:56:38,177 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:56:38,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:56:38,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2020-11-30 01:56:38,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:56:38,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778481767] [2020-11-30 01:56:38,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 01:56:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:56:39,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 01:56:39,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:56:39,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:56:39,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:56:39,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:56:39,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1778481767] [2020-11-30 01:56:39,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:56:39,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 01:56:39,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145711900] [2020-11-30 01:56:39,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:56:39,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:56:39,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:56:39,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:56:39,351 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-30 01:56:39,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:56:39,367 INFO L93 Difference]: Finished difference Result 65 states and 99 transitions. [2020-11-30 01:56:39,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:56:39,369 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 01:56:39,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:56:39,378 INFO L225 Difference]: With dead ends: 65 [2020-11-30 01:56:39,378 INFO L226 Difference]: Without dead ends: 30 [2020-11-30 01:56:39,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:56:39,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-30 01:56:39,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-30 01:56:39,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 01:56:39,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-11-30 01:56:39,426 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2020-11-30 01:56:39,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:56:39,427 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-11-30 01:56:39,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:56:39,427 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-11-30 01:56:39,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:56:39,428 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:56:39,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:56:39,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:56:39,645 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:56:39,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:56:39,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2020-11-30 01:56:39,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:56:39,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738125536] [2020-11-30 01:56:39,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 01:56:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:56:40,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 01:56:40,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:56:40,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:56:40,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:56:41,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:56:41,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738125536] [2020-11-30 01:56:41,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:56:41,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-30 01:56:41,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274957100] [2020-11-30 01:56:41,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:56:41,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:56:41,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:56:41,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:56:41,237 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 10 states. [2020-11-30 01:56:59,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:56:59,312 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2020-11-30 01:56:59,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 01:56:59,373 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-11-30 01:56:59,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:56:59,375 INFO L225 Difference]: With dead ends: 44 [2020-11-30 01:56:59,375 INFO L226 Difference]: Without dead ends: 36 [2020-11-30 01:56:59,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-30 01:56:59,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-30 01:56:59,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2020-11-30 01:56:59,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-30 01:56:59,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-11-30 01:56:59,382 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 11 [2020-11-30 01:56:59,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:56:59,383 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-11-30 01:56:59,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:56:59,383 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2020-11-30 01:56:59,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:56:59,384 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:56:59,384 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:56:59,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:56:59,585 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:56:59,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:56:59,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1812830160, now seen corresponding path program 1 times [2020-11-30 01:56:59,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:56:59,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451706018] [2020-11-30 01:56:59,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 01:57:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:57:00,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 01:57:00,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:57:00,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:57:00,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:57:00,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:57:00,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451706018] [2020-11-30 01:57:00,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:57:00,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 9 [2020-11-30 01:57:00,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978176315] [2020-11-30 01:57:00,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 01:57:00,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:57:00,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 01:57:00,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:57:00,993 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 9 states. [2020-11-30 01:57:01,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:57:01,224 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2020-11-30 01:57:01,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:57:01,227 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2020-11-30 01:57:01,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:57:01,227 INFO L225 Difference]: With dead ends: 30 [2020-11-30 01:57:01,227 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:57:01,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-11-30 01:57:01,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:57:01,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:57:01,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:57:01,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:57:01,229 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-30 01:57:01,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:57:01,229 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:57:01,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 01:57:01,229 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:57:01,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:57:01,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:57:01,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:57:01,549 INFO L274 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-11-30 01:57:01,549 INFO L274 CegarLoopResult]: For program point L93-2(lines 76 101) no Hoare annotation was computed. [2020-11-30 01:57:01,549 INFO L274 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-11-30 01:57:01,549 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-11-30 01:57:01,550 INFO L274 CegarLoopResult]: For program point L118-2(line 118) no Hoare annotation was computed. [2020-11-30 01:57:01,550 INFO L270 CegarLoopResult]: At program point L118-3(lines 58 120) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_atan_float_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_atan_float_~x)) [2020-11-30 01:57:01,550 INFO L274 CegarLoopResult]: For program point L77(lines 77 80) no Hoare annotation was computed. [2020-11-30 01:57:01,550 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 80) no Hoare annotation was computed. [2020-11-30 01:57:01,550 INFO L274 CegarLoopResult]: For program point L69(lines 69 70) no Hoare annotation was computed. [2020-11-30 01:57:01,550 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 01:57:01,550 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 01:57:01,550 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:57:01,551 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:57:01,551 INFO L274 CegarLoopResult]: For program point L78(lines 78 79) no Hoare annotation was computed. [2020-11-30 01:57:01,551 INFO L274 CegarLoopResult]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2020-11-30 01:57:01,551 INFO L270 CegarLoopResult]: At program point L62-2(lines 62 66) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_atan_float_~x)) [2020-11-30 01:57:01,551 INFO L274 CegarLoopResult]: For program point L62-3(lines 62 66) no Hoare annotation was computed. [2020-11-30 01:57:01,551 INFO L274 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-11-30 01:57:01,551 INFO L270 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2020-11-30 01:57:01,551 INFO L274 CegarLoopResult]: For program point L71(lines 71 74) no Hoare annotation was computed. [2020-11-30 01:57:01,551 INFO L277 CegarLoopResult]: At program point L138(lines 122 139) the Hoare annotation is: true [2020-11-30 01:57:01,552 INFO L270 CegarLoopResult]: At program point L31(lines 19 32) the Hoare annotation is: false [2020-11-30 01:57:01,552 INFO L274 CegarLoopResult]: For program point L114(lines 114 119) no Hoare annotation was computed. [2020-11-30 01:57:01,552 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:57:01,552 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 01:57:01,552 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:57:01,556 INFO L270 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_atan_float_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_atan_float_~x)) [2020-11-30 01:57:01,556 INFO L274 CegarLoopResult]: For program point L133(lines 133 136) no Hoare annotation was computed. [2020-11-30 01:57:01,556 INFO L274 CegarLoopResult]: For program point L26(lines 26 30) no Hoare annotation was computed. [2020-11-30 01:57:01,557 INFO L274 CegarLoopResult]: For program point L26-1(lines 19 32) no Hoare annotation was computed. [2020-11-30 01:57:01,558 INFO L274 CegarLoopResult]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2020-11-30 01:57:01,558 INFO L274 CegarLoopResult]: For program point L84(lines 84 100) no Hoare annotation was computed. [2020-11-30 01:57:01,558 INFO L274 CegarLoopResult]: For program point L76(lines 76 101) no Hoare annotation was computed. [2020-11-30 01:57:01,558 INFO L274 CegarLoopResult]: For program point L68(lines 68 75) no Hoare annotation was computed. [2020-11-30 01:57:01,572 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,573 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,574 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,574 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,576 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,576 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,580 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,580 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,581 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,581 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,583 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,584 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,585 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,585 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,585 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,586 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,586 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,587 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,587 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,587 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,587 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,588 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,589 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:57:01 BoogieIcfgContainer [2020-11-30 01:57:01,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:57:01,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:57:01,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:57:01,594 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:57:01,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:56:38" (3/4) ... [2020-11-30 01:57:01,598 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:57:01,615 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-30 01:57:01,617 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-30 01:57:01,618 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:57:01,622 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:57:01,658 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.add~FLOAT(~roundNearestTiesToEven, ~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 [2020-11-30 01:57:01,659 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~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 [2020-11-30 01:57:01,703 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ba2a0fea-0e9e-4e31-8040-9b0c32c37cd4/bin/utaipan/witness.graphml [2020-11-30 01:57:01,703 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:57:01,705 INFO L168 Benchmark]: Toolchain (without parser) took 32209.85 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 39.3 MB in the beginning and 54.8 MB in the end (delta: -15.4 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:57:01,705 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory is still 40.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:57:01,706 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.46 ms. Allocated memory is still 58.7 MB. Free memory was 39.2 MB in the beginning and 38.3 MB in the end (delta: 908.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:57:01,706 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.83 ms. Allocated memory is still 58.7 MB. Free memory was 38.1 MB in the beginning and 35.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:57:01,707 INFO L168 Benchmark]: Boogie Preprocessor took 92.39 ms. Allocated memory is still 58.7 MB. Free memory was 35.9 MB in the beginning and 33.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:57:01,707 INFO L168 Benchmark]: RCFGBuilder took 7973.45 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 33.7 MB in the beginning and 58.0 MB in the end (delta: -24.4 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:57:01,707 INFO L168 Benchmark]: TraceAbstraction took 23496.75 ms. Allocated memory is still 77.6 MB. Free memory was 57.2 MB in the beginning and 29.7 MB in the end (delta: 27.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:57:01,708 INFO L168 Benchmark]: Witness Printer took 109.59 ms. Allocated memory is still 77.6 MB. Free memory was 29.7 MB in the beginning and 54.8 MB in the end (delta: -25.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:57:01,710 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory is still 40.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 439.46 ms. Allocated memory is still 58.7 MB. Free memory was 39.2 MB in the beginning and 38.3 MB in the end (delta: 908.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.83 ms. Allocated memory is still 58.7 MB. Free memory was 38.1 MB in the beginning and 35.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.39 ms. Allocated memory is still 58.7 MB. Free memory was 35.9 MB in the beginning and 33.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 7973.45 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 33.7 MB in the beginning and 58.0 MB in the end (delta: -24.4 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 23496.75 ms. Allocated memory is still 77.6 MB. Free memory was 57.2 MB in the beginning and 29.7 MB in the end (delta: 27.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB. * Witness Printer took 109.59 ms. Allocated memory is still 77.6 MB. Free memory was 29.7 MB in the beginning and 54.8 MB in the end (delta: -25.0 MB). Peak memory consumption was 2.1 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant [2020-11-30 01:57:01,719 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,720 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,720 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,720 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,720 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,721 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,721 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,721 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,722 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,722 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,722 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~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: 62]: Loop Invariant [2020-11-30 01:57:01,722 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,723 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,723 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,723 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,723 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,723 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 58]: Loop Invariant [2020-11-30 01:57:01,724 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,724 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,724 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,724 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,725 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,725 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,725 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,725 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,726 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,726 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:57:01,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:57:01,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.add~FLOAT(~roundNearestTiesToEven, ~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 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 23.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 18.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 94 SDslu, 120 SDs, 0 SdLazy, 83 SolverSat, 3 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 17.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 60 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 6 QuantifiedInterpolants, 3403 SizeOfPredicates, 17 NumberOfNonLiveVariables, 300 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...