./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.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_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/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 bf16487f411039d120d72f1ea3eb73e7cb935c40 ................................................................................................................................................................................................................................................................................................................. 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_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/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 bf16487f411039d120d72f1ea3eb73e7cb935c40 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:11:52,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:11:52,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:11:52,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:11:52,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:11:52,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:11:52,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:11:52,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:11:52,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:11:52,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:11:52,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:11:52,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:11:52,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:11:52,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:11:52,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:11:52,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:11:52,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:11:52,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:11:52,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:11:52,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:11:52,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:11:52,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:11:52,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:11:52,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:11:52,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:11:52,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:11:52,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:11:52,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:11:52,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:11:52,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:11:52,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:11:52,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:11:52,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:11:52,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:11:52,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:11:52,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:11:52,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:11:52,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:11:52,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:11:52,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:11:52,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:11:52,531 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 02:11:52,593 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:11:52,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:11:52,596 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:11:52,597 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:11:52,597 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:11:52,597 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:11:52,598 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:11:52,598 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:11:52,598 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:11:52,599 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:11:52,600 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:11:52,601 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:11:52,601 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:11:52,602 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:11:52,602 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:11:52,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:11:52,604 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:11:52,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:11:52,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:11:52,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:11:52,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:11:52,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:11:52,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:11:52,606 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:11:52,606 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:11:52,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:11:52,607 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:11:52,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:11:52,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:11:52,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:11:52,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:11:52,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:11:52,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:11:52,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:11:52,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:11:52,610 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:11:52,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:11:52,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:11:52,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:11:52,611 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:11:52,611 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_43af56b5-331b-4a5a-91d9-b1c93836c343/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf16487f411039d120d72f1ea3eb73e7cb935c40 [2020-11-30 02:11:52,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:11:53,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:11:53,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:11:53,026 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:11:53,029 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:11:53,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2020-11-30 02:11:53,116 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/data/41e9413d6/57960dd38109459f998f81e3cfb4e073/FLAG1f2b979cd [2020-11-30 02:11:53,752 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:11:53,753 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2020-11-30 02:11:53,774 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/data/41e9413d6/57960dd38109459f998f81e3cfb4e073/FLAG1f2b979cd [2020-11-30 02:11:54,019 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/data/41e9413d6/57960dd38109459f998f81e3cfb4e073 [2020-11-30 02:11:54,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:11:54,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:11:54,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:11:54,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:11:54,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:11:54,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:11:54" (1/1) ... [2020-11-30 02:11:54,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@531bf172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:11:54, skipping insertion in model container [2020-11-30 02:11:54,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:11:54" (1/1) ... [2020-11-30 02:11:54,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:11:54,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:11:54,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:11:54,549 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:11:54,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:11:54,653 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:11:54,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:11:54 WrapperNode [2020-11-30 02:11:54,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:11:54,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:11:54,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:11:54,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:11:54,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:11:54" (1/1) ... [2020-11-30 02:11:54,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:11:54" (1/1) ... [2020-11-30 02:11:54,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:11:54,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:11:54,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:11:54,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:11:54,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:11:54" (1/1) ... [2020-11-30 02:11:54,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:11:54" (1/1) ... [2020-11-30 02:11:54,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:11:54" (1/1) ... [2020-11-30 02:11:54,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:11:54" (1/1) ... [2020-11-30 02:11:54,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:11:54" (1/1) ... [2020-11-30 02:11:54,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:11:54" (1/1) ... [2020-11-30 02:11:54,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:11:54" (1/1) ... [2020-11-30 02:11:54,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:11:54,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:11:54,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:11:54,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:11:54,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:11:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/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 02:11:54,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:11:54,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:11:54,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 02:11:54,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 02:11:54,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 02:11:54,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:11:54,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:11:54,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 02:11:54,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:11:56,102 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:11:56,102 INFO L298 CfgBuilder]: Removed 32 assume(true) statements. [2020-11-30 02:11:56,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:11:56 BoogieIcfgContainer [2020-11-30 02:11:56,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:11:56,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:11:56,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:11:56,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:11:56,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:11:54" (1/3) ... [2020-11-30 02:11:56,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f76e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:11:56, skipping insertion in model container [2020-11-30 02:11:56,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:11:54" (2/3) ... [2020-11-30 02:11:56,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f76e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:11:56, skipping insertion in model container [2020-11-30 02:11:56,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:11:56" (3/3) ... [2020-11-30 02:11:56,115 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270b.c [2020-11-30 02:11:56,129 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:11:56,135 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:11:56,150 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:11:56,181 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:11:56,181 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:11:56,181 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:11:56,181 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:11:56,182 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:11:56,182 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:11:56,182 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:11:56,182 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:11:56,199 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-11-30 02:11:56,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:11:56,205 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:11:56,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:11:56,207 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:11:56,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:11:56,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1760934509, now seen corresponding path program 1 times [2020-11-30 02:11:56,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:11:56,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898727211] [2020-11-30 02:11:56,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:11:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:11:56,452 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 02:11:56,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898727211] [2020-11-30 02:11:56,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:11:56,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:11:56,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583070465] [2020-11-30 02:11:56,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:11:56,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:11:56,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:11:56,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:11:56,487 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2020-11-30 02:11:56,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:11:56,525 INFO L93 Difference]: Finished difference Result 91 states and 149 transitions. [2020-11-30 02:11:56,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:11:56,527 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-30 02:11:56,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:11:56,551 INFO L225 Difference]: With dead ends: 91 [2020-11-30 02:11:56,551 INFO L226 Difference]: Without dead ends: 44 [2020-11-30 02:11:56,556 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 02:11:56,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-11-30 02:11:56,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-11-30 02:11:56,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-30 02:11:56,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2020-11-30 02:11:56,616 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 8 [2020-11-30 02:11:56,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:11:56,617 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2020-11-30 02:11:56,617 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:11:56,618 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2020-11-30 02:11:56,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 02:11:56,620 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:11:56,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:11:56,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:11:56,621 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:11:56,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:11:56,626 INFO L82 PathProgramCache]: Analyzing trace with hash -971347180, now seen corresponding path program 1 times [2020-11-30 02:11:56,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:11:56,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477942430] [2020-11-30 02:11:56,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:11:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:11:56,716 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:11:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:11:56,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:11:56,832 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 02:11:56,832 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:11:56,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 02:11:56,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:11:56 BoogieIcfgContainer [2020-11-30 02:11:56,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:11:56,909 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:11:56,909 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:11:56,910 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:11:56,911 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:11:56" (3/4) ... [2020-11-30 02:11:56,915 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 02:11:56,915 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:11:56,920 INFO L168 Benchmark]: Toolchain (without parser) took 2889.89 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 55.1 MB in the beginning and 56.0 MB in the end (delta: -850.3 kB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2020-11-30 02:11:56,921 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory is still 71.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:11:56,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.01 ms. Allocated memory is still 90.2 MB. Free memory was 54.9 MB in the beginning and 63.7 MB in the end (delta: -8.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-11-30 02:11:56,924 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.03 ms. Allocated memory is still 90.2 MB. Free memory was 63.5 MB in the beginning and 61.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:11:56,926 INFO L168 Benchmark]: Boogie Preprocessor took 48.70 ms. Allocated memory is still 90.2 MB. Free memory was 61.1 MB in the beginning and 59.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:11:56,927 INFO L168 Benchmark]: RCFGBuilder took 1336.34 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 59.0 MB in the beginning and 80.6 MB in the end (delta: -21.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:11:56,928 INFO L168 Benchmark]: TraceAbstraction took 801.39 ms. Allocated memory is still 109.1 MB. Free memory was 80.2 MB in the beginning and 56.4 MB in the end (delta: 23.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:11:56,930 INFO L168 Benchmark]: Witness Printer took 7.07 ms. Allocated memory is still 109.1 MB. Free memory was 56.4 MB in the beginning and 56.0 MB in the end (delta: 460.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:11:56,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory is still 71.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 621.01 ms. Allocated memory is still 90.2 MB. Free memory was 54.9 MB in the beginning and 63.7 MB in the end (delta: -8.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.03 ms. Allocated memory is still 90.2 MB. Free memory was 63.5 MB in the beginning and 61.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.70 ms. Allocated memory is still 90.2 MB. Free memory was 61.1 MB in the beginning and 59.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1336.34 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 59.0 MB in the beginning and 80.6 MB in the end (delta: -21.6 MB). Peak memory consumption was 24.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 801.39 ms. Allocated memory is still 109.1 MB. Free memory was 80.2 MB in the beginning and 56.4 MB in the end (delta: 23.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 7.07 ms. Allocated memory is still 109.1 MB. Free memory was 56.4 MB in the beginning and 56.0 MB in the end (delta: 460.6 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 199, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of bitwiseAnd at line 127, overapproximation of someUnaryFLOAToperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 130. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L195] float x = 0.0f; [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L128] COND TRUE ix == 0x3f800000 [L130] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L196] float res = __ieee754_asinf(x); [L199] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L199] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_0270b.c", 3, "reach_error") VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 58 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=46occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:12:00,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:12:00,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:12:00,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:12:00,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:12:00,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:12:00,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:12:00,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:12:00,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:12:00,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:12:00,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:12:00,287 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:12:00,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:12:00,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:12:00,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:12:00,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:12:00,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:12:00,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:12:00,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:12:00,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:12:00,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:12:00,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:12:00,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:12:00,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:12:00,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:12:00,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:12:00,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:12:00,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:12:00,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:12:00,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:12:00,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:12:00,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:12:00,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:12:00,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:12:00,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:12:00,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:12:00,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:12:00,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:12:00,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:12:00,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:12:00,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:12:00,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 02:12:00,372 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:12:00,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:12:00,374 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:12:00,375 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:12:00,375 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:12:00,376 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:12:00,376 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:12:00,377 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:12:00,377 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:12:00,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:12:00,379 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:12:00,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:12:00,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:12:00,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:12:00,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:12:00,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:12:00,381 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:12:00,381 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 02:12:00,382 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 02:12:00,382 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:12:00,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:12:00,383 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:12:00,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:12:00,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:12:00,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 02:12:00,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:12:00,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:12:00,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:12:00,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:12:00,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:12:00,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:12:00,386 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 02:12:00,386 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 02:12:00,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:12:00,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:12:00,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:12:00,387 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_43af56b5-331b-4a5a-91d9-b1c93836c343/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf16487f411039d120d72f1ea3eb73e7cb935c40 [2020-11-30 02:12:00,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:12:00,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:12:00,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:12:00,924 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:12:00,927 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:12:00,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2020-11-30 02:12:01,009 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/data/4cf1f6813/0277ef9457614d59a38284a09b2dfad0/FLAG55b9fb11c [2020-11-30 02:12:01,687 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:12:01,688 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2020-11-30 02:12:01,701 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/data/4cf1f6813/0277ef9457614d59a38284a09b2dfad0/FLAG55b9fb11c [2020-11-30 02:12:02,040 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/data/4cf1f6813/0277ef9457614d59a38284a09b2dfad0 [2020-11-30 02:12:02,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:12:02,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:12:02,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:12:02,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:12:02,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:12:02,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:12:02" (1/1) ... [2020-11-30 02:12:02,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45158c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:02, skipping insertion in model container [2020-11-30 02:12:02,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:12:02" (1/1) ... [2020-11-30 02:12:02,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:12:02,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:12:02,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:12:02,451 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:12:02,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:12:02,631 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:12:02,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:02 WrapperNode [2020-11-30 02:12:02,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:12:02,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:12:02,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:12:02,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:12:02,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:02" (1/1) ... [2020-11-30 02:12:02,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:02" (1/1) ... [2020-11-30 02:12:02,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:12:02,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:12:02,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:12:02,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:12:02,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:02" (1/1) ... [2020-11-30 02:12:02,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:02" (1/1) ... [2020-11-30 02:12:02,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:02" (1/1) ... [2020-11-30 02:12:02,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:02" (1/1) ... [2020-11-30 02:12:02,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:02" (1/1) ... [2020-11-30 02:12:02,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:02" (1/1) ... [2020-11-30 02:12:02,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:02" (1/1) ... [2020-11-30 02:12:02,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:12:02,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:12:02,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:12:02,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:12:02,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/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 02:12:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 02:12:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:12:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 02:12:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 02:12:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:12:02,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:12:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 02:12:02,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 02:12:02,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:12:14,949 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:12:14,949 INFO L298 CfgBuilder]: Removed 32 assume(true) statements. [2020-11-30 02:12:14,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:12:14 BoogieIcfgContainer [2020-11-30 02:12:14,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:12:14,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:12:14,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:12:14,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:12:14,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:12:02" (1/3) ... [2020-11-30 02:12:14,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7df576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:12:14, skipping insertion in model container [2020-11-30 02:12:14,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:12:02" (2/3) ... [2020-11-30 02:12:14,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7df576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:12:14, skipping insertion in model container [2020-11-30 02:12:14,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:12:14" (3/3) ... [2020-11-30 02:12:14,973 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270b.c [2020-11-30 02:12:14,983 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:12:14,987 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:12:14,996 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:12:15,022 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:12:15,022 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:12:15,022 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:12:15,023 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:12:15,023 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:12:15,023 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:12:15,023 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:12:15,023 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:12:15,036 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-11-30 02:12:15,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 02:12:15,041 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:12:15,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:12:15,043 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:12:15,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:12:15,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1900514974, now seen corresponding path program 1 times [2020-11-30 02:12:15,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:12:15,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112824363] [2020-11-30 02:12:15,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/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 02:12:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:12:16,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 02:12:16,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:12:16,020 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 02:12:16,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:12:16,024 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 02:12:16,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112824363] [2020-11-30 02:12:16,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:12:16,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 02:12:16,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061728827] [2020-11-30 02:12:16,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:12:16,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:12:16,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:12:16,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:12:16,049 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2020-11-30 02:12:16,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:12:16,074 INFO L93 Difference]: Finished difference Result 119 states and 193 transitions. [2020-11-30 02:12:16,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:12:16,075 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-30 02:12:16,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:12:16,083 INFO L225 Difference]: With dead ends: 119 [2020-11-30 02:12:16,083 INFO L226 Difference]: Without dead ends: 57 [2020-11-30 02:12:16,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 02:12:16,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-30 02:12:16,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-11-30 02:12:16,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-30 02:12:16,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2020-11-30 02:12:16,122 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 9 [2020-11-30 02:12:16,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:12:16,122 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2020-11-30 02:12:16,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:12:16,122 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2020-11-30 02:12:16,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 02:12:16,123 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:12:16,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:12:16,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 02:12:16,347 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:12:16,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:12:16,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1487835839, now seen corresponding path program 1 times [2020-11-30 02:12:16,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:12:16,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508247019] [2020-11-30 02:12:16,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/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 02:12:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:12:17,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 02:12:17,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:12:17,228 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 02:12:17,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:12:17,321 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 02:12:17,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508247019] [2020-11-30 02:12:17,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:12:17,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 02:12:17,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130008071] [2020-11-30 02:12:17,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 02:12:17,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:12:17,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 02:12:17,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 02:12:17,325 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand 8 states. [2020-11-30 02:12:18,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:12:18,750 INFO L93 Difference]: Finished difference Result 104 states and 135 transitions. [2020-11-30 02:12:18,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 02:12:18,754 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-11-30 02:12:18,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:12:18,755 INFO L225 Difference]: With dead ends: 104 [2020-11-30 02:12:18,755 INFO L226 Difference]: Without dead ends: 57 [2020-11-30 02:12:18,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 02:12:18,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-30 02:12:18,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-11-30 02:12:18,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-30 02:12:18,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2020-11-30 02:12:18,776 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 10 [2020-11-30 02:12:18,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:12:18,777 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2020-11-30 02:12:18,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 02:12:18,777 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2020-11-30 02:12:18,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 02:12:18,778 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:12:18,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:12:18,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 02:12:18,992 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:12:18,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:12:18,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1089938183, now seen corresponding path program 1 times [2020-11-30 02:12:18,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:12:18,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918183994] [2020-11-30 02:12:18,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/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 02:12:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:12:19,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 02:12:19,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:12:19,643 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 02:12:19,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:12:19,687 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 02:12:19,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918183994] [2020-11-30 02:12:19,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:12:19,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-11-30 02:12:19,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180498345] [2020-11-30 02:12:19,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 02:12:19,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:12:19,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 02:12:19,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 02:12:19,690 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand 7 states. [2020-11-30 02:12:19,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:12:19,953 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2020-11-30 02:12:19,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 02:12:19,953 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-11-30 02:12:19,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:12:19,955 INFO L225 Difference]: With dead ends: 69 [2020-11-30 02:12:19,955 INFO L226 Difference]: Without dead ends: 66 [2020-11-30 02:12:19,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-11-30 02:12:19,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-30 02:12:19,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2020-11-30 02:12:19,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-30 02:12:19,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2020-11-30 02:12:19,974 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 14 [2020-11-30 02:12:19,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:12:19,974 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2020-11-30 02:12:19,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 02:12:19,975 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2020-11-30 02:12:19,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 02:12:19,976 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:12:19,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:12:20,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 02:12:20,197 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:12:20,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:12:20,197 INFO L82 PathProgramCache]: Analyzing trace with hash 980104924, now seen corresponding path program 1 times [2020-11-30 02:12:20,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:12:20,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127447380] [2020-11-30 02:12:20,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 02:12:20,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:12:20,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-30 02:12:20,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:12:20,908 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 02:12:20,959 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 02:12:20,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:12:21,273 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 02:12:21,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127447380] [2020-11-30 02:12:21,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:12:21,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-11-30 02:12:21,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422666168] [2020-11-30 02:12:21,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 02:12:21,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:12:21,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 02:12:21,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-11-30 02:12:21,276 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand 14 states. [2020-11-30 02:12:21,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:12:21,815 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2020-11-30 02:12:21,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 02:12:21,816 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-11-30 02:12:21,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:12:21,817 INFO L225 Difference]: With dead ends: 66 [2020-11-30 02:12:21,818 INFO L226 Difference]: Without dead ends: 57 [2020-11-30 02:12:21,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2020-11-30 02:12:21,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-30 02:12:21,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-11-30 02:12:21,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-30 02:12:21,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2020-11-30 02:12:21,827 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 18 [2020-11-30 02:12:21,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:12:21,828 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2020-11-30 02:12:21,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 02:12:21,828 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2020-11-30 02:12:21,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-30 02:12:21,829 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:12:21,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:12:22,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 02:12:22,052 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:12:22,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:12:22,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1296197232, now seen corresponding path program 1 times [2020-11-30 02:12:22,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:12:22,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982488530] [2020-11-30 02:12:22,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-30 02:12:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:12:24,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 02:12:24,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:12:24,457 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 02:12:24,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:12:24,895 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-30 02:12:24,998 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 02:12:24,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982488530] [2020-11-30 02:12:24,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:12:24,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-30 02:12:24,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475188744] [2020-11-30 02:12:24,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 02:12:24,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:12:25,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 02:12:25,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:12:25,000 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand 6 states. [2020-11-30 02:12:25,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:12:25,055 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2020-11-30 02:12:25,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:12:25,056 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-11-30 02:12:25,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:12:25,057 INFO L225 Difference]: With dead ends: 57 [2020-11-30 02:12:25,057 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 02:12:25,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:12:25,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 02:12:25,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 02:12:25,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 02:12:25,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 02:12:25,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-11-30 02:12:25,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:12:25,059 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 02:12:25,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 02:12:25,059 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 02:12:25,059 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:12:25,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-30 02:12:25,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 02:12:25,506 INFO L270 CegarLoopResult]: At program point L184(lines 119 185) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_asinf_#res| (_ +zero 8 24)) (= ULTIMATE.start___ieee754_asinf_~x (_ +zero 8 24)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)))))) [2020-11-30 02:12:25,506 INFO L274 CegarLoopResult]: For program point L135(lines 135 136) no Hoare annotation was computed. [2020-11-30 02:12:25,507 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 02:12:25,507 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 02:12:25,507 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 02:12:25,507 INFO L274 CegarLoopResult]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2020-11-30 02:12:25,507 INFO L270 CegarLoopResult]: At program point L87-2(lines 87 91) the Hoare annotation is: false [2020-11-30 02:12:25,507 INFO L274 CegarLoopResult]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2020-11-30 02:12:25,507 INFO L274 CegarLoopResult]: For program point L170(lines 170 174) no Hoare annotation was computed. [2020-11-30 02:12:25,507 INFO L274 CegarLoopResult]: For program point L170-1(lines 162 180) no Hoare annotation was computed. [2020-11-30 02:12:25,507 INFO L274 CegarLoopResult]: For program point L170-2(lines 170 174) no Hoare annotation was computed. [2020-11-30 02:12:25,508 INFO L277 CegarLoopResult]: At program point L204(lines 187 205) the Hoare annotation is: true [2020-11-30 02:12:25,508 INFO L274 CegarLoopResult]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2020-11-30 02:12:25,508 INFO L270 CegarLoopResult]: At program point L122-2(lines 122 126) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_asinf_~x (_ +zero 8 24)) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_asin~0) (= ~huge_asin~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-11-30 02:12:25,508 INFO L274 CegarLoopResult]: For program point L56(lines 56 57) no Hoare annotation was computed. [2020-11-30 02:12:25,508 INFO L274 CegarLoopResult]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2020-11-30 02:12:25,508 INFO L270 CegarLoopResult]: At program point L23(lines 14 24) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_asinf_#res| (_ +zero 8 24)) |ULTIMATE.start_main_#t~short28| (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_asinf_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)))))) [2020-11-30 02:12:25,509 INFO L274 CegarLoopResult]: For program point L56-2(lines 56 57) no Hoare annotation was computed. [2020-11-30 02:12:25,509 INFO L270 CegarLoopResult]: At program point L106(lines 94 107) the Hoare annotation is: false [2020-11-30 02:12:25,509 INFO L274 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-11-30 02:12:25,509 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 02:12:25,509 INFO L274 CegarLoopResult]: For program point L75(lines 75 84) no Hoare annotation was computed. [2020-11-30 02:12:25,509 INFO L270 CegarLoopResult]: At program point L92(lines 28 93) the Hoare annotation is: false [2020-11-30 02:12:25,509 INFO L274 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2020-11-30 02:12:25,509 INFO L274 CegarLoopResult]: For program point L159(lines 159 180) no Hoare annotation was computed. [2020-11-30 02:12:25,509 INFO L274 CegarLoopResult]: For program point L159-2(lines 119 185) no Hoare annotation was computed. [2020-11-30 02:12:25,510 INFO L274 CegarLoopResult]: For program point L77(lines 77 83) no Hoare annotation was computed. [2020-11-30 02:12:25,510 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 02:12:25,510 INFO L274 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2020-11-30 02:12:25,510 INFO L274 CegarLoopResult]: For program point L128(lines 128 148) no Hoare annotation was computed. [2020-11-30 02:12:25,510 INFO L274 CegarLoopResult]: For program point L79(lines 79 82) no Hoare annotation was computed. [2020-11-30 02:12:25,510 INFO L274 CegarLoopResult]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2020-11-30 02:12:25,510 INFO L270 CegarLoopResult]: At program point L96-2(lines 96 100) the Hoare annotation is: false [2020-11-30 02:12:25,510 INFO L270 CegarLoopResult]: At program point L64-2(lines 64 73) the Hoare annotation is: false [2020-11-30 02:12:25,510 INFO L274 CegarLoopResult]: For program point L64-3(lines 28 93) no Hoare annotation was computed. [2020-11-30 02:12:25,511 INFO L274 CegarLoopResult]: For program point L131(lines 131 148) no Hoare annotation was computed. [2020-11-30 02:12:25,511 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 02:12:25,511 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 02:12:25,511 INFO L274 CegarLoopResult]: For program point L49(lines 49 53) no Hoare annotation was computed. [2020-11-30 02:12:25,511 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2020-11-30 02:12:25,511 INFO L274 CegarLoopResult]: For program point L165-1(lines 165 169) no Hoare annotation was computed. [2020-11-30 02:12:25,511 INFO L270 CegarLoopResult]: At program point L165-2(lines 165 169) the Hoare annotation is: false [2020-11-30 02:12:25,511 INFO L274 CegarLoopResult]: For program point L66(lines 66 70) no Hoare annotation was computed. [2020-11-30 02:12:25,511 INFO L274 CegarLoopResult]: For program point L33-1(lines 33 37) no Hoare annotation was computed. [2020-11-30 02:12:25,512 INFO L274 CegarLoopResult]: For program point L66-2(lines 66 70) no Hoare annotation was computed. [2020-11-30 02:12:25,512 INFO L270 CegarLoopResult]: At program point L33-2(lines 33 37) the Hoare annotation is: false [2020-11-30 02:12:25,512 INFO L274 CegarLoopResult]: For program point L33-3(lines 33 37) no Hoare annotation was computed. [2020-11-30 02:12:25,512 INFO L274 CegarLoopResult]: For program point L50-2(lines 50 51) no Hoare annotation was computed. [2020-11-30 02:12:25,512 INFO L274 CegarLoopResult]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2020-11-30 02:12:25,512 INFO L270 CegarLoopResult]: At program point L50-3(lines 50 51) the Hoare annotation is: false [2020-11-30 02:12:25,512 INFO L270 CegarLoopResult]: At program point L17-2(lines 17 21) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_asinf_#res| (_ +zero 8 24)) |ULTIMATE.start_main_#t~short28| (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_asinf_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)))))) [2020-11-30 02:12:25,512 INFO L274 CegarLoopResult]: For program point L50-4(lines 50 51) no Hoare annotation was computed. [2020-11-30 02:12:25,513 INFO L274 CegarLoopResult]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2020-11-30 02:12:25,513 INFO L274 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-11-30 02:12:25,513 INFO L274 CegarLoopResult]: For program point L133(lines 133 148) no Hoare annotation was computed. [2020-11-30 02:12:25,513 INFO L274 CegarLoopResult]: For program point L199-2(lines 199 202) no Hoare annotation was computed. [2020-11-30 02:12:25,513 INFO L274 CegarLoopResult]: For program point L133-1(lines 133 148) no Hoare annotation was computed. [2020-11-30 02:12:25,513 INFO L274 CegarLoopResult]: For program point L134(lines 134 147) no Hoare annotation was computed. [2020-11-30 02:12:25,513 INFO L274 CegarLoopResult]: For program point L101(lines 101 105) no Hoare annotation was computed. [2020-11-30 02:12:25,513 INFO L274 CegarLoopResult]: For program point L101-1(lines 94 107) no Hoare annotation was computed. [2020-11-30 02:12:25,513 INFO L274 CegarLoopResult]: For program point L101-2(lines 101 105) no Hoare annotation was computed. [2020-11-30 02:12:25,525 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,526 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,526 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,526 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,533 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,533 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,533 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,534 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,535 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,536 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,536 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,536 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,537 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,537 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,537 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,538 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,538 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,539 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,539 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,539 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,542 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:12:25,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,543 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,544 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:12:25,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,545 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,545 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:12:25 BoogieIcfgContainer [2020-11-30 02:12:25,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:12:25,552 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:12:25,552 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:12:25,552 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:12:25,553 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:12:14" (3/4) ... [2020-11-30 02:12:25,556 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:12:25,578 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-30 02:12:25,579 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 02:12:25,579 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:12:25,579 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:12:25,606 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~Pluszero~LONGDOUBLE() && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0])) [2020-11-30 02:12:25,608 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == ~Pluszero~LONGDOUBLE() && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0])) [2020-11-30 02:12:25,610 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == ~Pluszero~LONGDOUBLE() && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0])) [2020-11-30 02:12:25,664 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_43af56b5-331b-4a5a-91d9-b1c93836c343/bin/utaipan/witness.graphml [2020-11-30 02:12:25,665 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:12:25,666 INFO L168 Benchmark]: Toolchain (without parser) took 23620.65 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 29.1 MB in the beginning and 22.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-11-30 02:12:25,667 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 52.4 MB. Free memory was 34.1 MB in the beginning and 34.0 MB in the end (delta: 46.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:12:25,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.26 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.9 MB in the beginning and 42.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:12:25,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 120.09 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 40.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:12:25,669 INFO L168 Benchmark]: Boogie Preprocessor took 108.37 ms. Allocated memory is still 62.9 MB. Free memory was 40.2 MB in the beginning and 37.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:12:25,670 INFO L168 Benchmark]: RCFGBuilder took 12084.75 ms. Allocated memory is still 62.9 MB. Free memory was 37.8 MB in the beginning and 38.9 MB in the end (delta: -1.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:12:25,670 INFO L168 Benchmark]: TraceAbstraction took 10597.88 ms. Allocated memory is still 62.9 MB. Free memory was 38.6 MB in the beginning and 28.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2020-11-30 02:12:25,670 INFO L168 Benchmark]: Witness Printer took 113.27 ms. Allocated memory is still 62.9 MB. Free memory was 28.2 MB in the beginning and 22.4 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:12:25,673 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 52.4 MB. Free memory was 34.1 MB in the beginning and 34.0 MB in the end (delta: 46.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 581.26 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.9 MB in the beginning and 42.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 120.09 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 40.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 108.37 ms. Allocated memory is still 62.9 MB. Free memory was 40.2 MB in the beginning and 37.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 12084.75 ms. Allocated memory is still 62.9 MB. Free memory was 37.8 MB in the beginning and 38.9 MB in the end (delta: -1.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10597.88 ms. Allocated memory is still 62.9 MB. Free memory was 38.6 MB in the beginning and 28.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * Witness Printer took 113.27 ms. Allocated memory is still 62.9 MB. Free memory was 28.2 MB in the beginning and 22.4 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - 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 * 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: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant [2020-11-30 02:12:25,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,688 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((\result == ~Pluszero~LONGDOUBLE() && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0])) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant [2020-11-30 02:12:25,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,701 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,703 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((((\result == ~Pluszero~LONGDOUBLE() && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0])) - InvariantResult [Line: 119]: Loop Invariant [2020-11-30 02:12:25,709 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,711 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,712 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,712 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-30 02:12:25,712 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\result == ~Pluszero~LONGDOUBLE() && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0])) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0])) - InvariantResult [Line: 122]: Loop Invariant [2020-11-30 02:12:25,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:12:25,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,714 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:12:25,714 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,720 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:12:25,721 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_asin) && huge_asin == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 267 SDtfs, 516 SDslu, 613 SDs, 0 SdLazy, 108 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 18 NumberOfFragments, 152 HoareAnnotationTreeSize, 13 FomulaSimplifications, 78 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 4.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 158 ConstructedInterpolants, 13 QuantifiedInterpolants, 15289 SizeOfPredicates, 28 NumberOfNonLiveVariables, 393 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...