./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.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_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/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 51b19897c11e4f835362356179f819ee4e466264 .......................................................................................................................................................................................................................................................................................................... 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_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/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 51b19897c11e4f835362356179f819ee4e466264 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:49:18,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:49:18,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:49:18,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:49:18,416 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:49:18,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:49:18,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:49:18,433 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:49:18,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:49:18,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:49:18,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:49:18,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:49:18,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:49:18,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:49:18,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:49:18,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:49:18,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:49:18,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:49:18,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:49:18,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:49:18,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:49:18,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:49:18,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:49:18,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:49:18,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:49:18,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:49:18,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:49:18,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:49:18,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:49:18,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:49:18,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:49:18,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:49:18,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:49:18,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:49:18,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:49:18,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:49:18,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:49:18,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:49:18,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:49:18,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:49:18,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:49:18,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:49:18,555 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:49:18,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:49:18,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:49:18,558 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:49:18,558 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:49:18,558 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:49:18,558 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:49:18,559 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:49:18,559 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:49:18,559 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:49:18,560 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:49:18,561 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:49:18,561 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:49:18,561 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:49:18,561 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:49:18,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:49:18,562 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:49:18,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:49:18,563 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:49:18,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:49:18,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:49:18,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:49:18,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:49:18,564 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:49:18,564 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:49:18,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:49:18,565 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:49:18,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:49:18,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:49:18,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:49:18,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:49:18,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:49:18,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:49:18,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:49:18,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:49:18,569 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:49:18,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:49:18,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:49:18,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:49:18,570 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:49:18,570 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_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51b19897c11e4f835362356179f819ee4e466264 [2020-11-30 01:49:18,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:49:18,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:49:18,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:49:18,861 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:49:18,862 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:49:18,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2020-11-30 01:49:18,948 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/data/de096c2ad/d004141d78194372b35c62ac5dce6354/FLAGe3b89aeff [2020-11-30 01:49:19,495 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:49:19,496 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2020-11-30 01:49:19,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/data/de096c2ad/d004141d78194372b35c62ac5dce6354/FLAGe3b89aeff [2020-11-30 01:49:19,830 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/data/de096c2ad/d004141d78194372b35c62ac5dce6354 [2020-11-30 01:49:19,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:49:19,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:49:19,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:49:19,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:49:19,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:49:19,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:49:19" (1/1) ... [2020-11-30 01:49:19,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783ecf97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:19, skipping insertion in model container [2020-11-30 01:49:19,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:49:19" (1/1) ... [2020-11-30 01:49:19,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:49:19,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:49:20,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:49:20,108 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:49:20,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:49:20,173 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:49:20,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:20 WrapperNode [2020-11-30 01:49:20,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:49:20,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:49:20,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:49:20,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:49:20,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:20" (1/1) ... [2020-11-30 01:49:20,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:20" (1/1) ... [2020-11-30 01:49:20,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:49:20,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:49:20,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:49:20,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:49:20,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:20" (1/1) ... [2020-11-30 01:49:20,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:20" (1/1) ... [2020-11-30 01:49:20,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:20" (1/1) ... [2020-11-30 01:49:20,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:20" (1/1) ... [2020-11-30 01:49:20,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:20" (1/1) ... [2020-11-30 01:49:20,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:20" (1/1) ... [2020-11-30 01:49:20,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:20" (1/1) ... [2020-11-30 01:49:20,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:49:20,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:49:20,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:49:20,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:49:20,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:49:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:49:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:49:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 01:49:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:49:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 01:49:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:49:20,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:49:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:49:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:49:20,961 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:49:20,961 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 01:49:20,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:49:20 BoogieIcfgContainer [2020-11-30 01:49:20,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:49:20,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:49:20,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:49:20,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:49:20,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:49:19" (1/3) ... [2020-11-30 01:49:20,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1bf68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:49:20, skipping insertion in model container [2020-11-30 01:49:20,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:20" (2/3) ... [2020-11-30 01:49:20,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d1bf68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:49:20, skipping insertion in model container [2020-11-30 01:49:20,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:49:20" (3/3) ... [2020-11-30 01:49:20,973 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2020-11-30 01:49:20,984 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:49:20,989 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:49:21,002 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:49:21,024 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:49:21,024 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:49:21,024 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:49:21,024 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:49:21,025 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:49:21,025 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:49:21,025 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:49:21,025 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:49:21,038 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-11-30 01:49:21,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:49:21,043 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:49:21,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:49:21,044 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:49:21,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:49:21,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1496489346, now seen corresponding path program 1 times [2020-11-30 01:49:21,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:49:21,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889475699] [2020-11-30 01:49:21,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:49:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:49:21,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:49:21,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889475699] [2020-11-30 01:49:21,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:49:21,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:49:21,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488867428] [2020-11-30 01:49:21,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:49:21,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:49:21,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:49:21,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:49:21,225 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-11-30 01:49:21,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:49:21,242 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2020-11-30 01:49:21,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:49:21,243 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-30 01:49:21,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:49:21,252 INFO L225 Difference]: With dead ends: 39 [2020-11-30 01:49:21,252 INFO L226 Difference]: Without dead ends: 18 [2020-11-30 01:49:21,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:49:21,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-30 01:49:21,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-30 01:49:21,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-30 01:49:21,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2020-11-30 01:49:21,288 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 8 [2020-11-30 01:49:21,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:49:21,289 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2020-11-30 01:49:21,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:49:21,289 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2020-11-30 01:49:21,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:49:21,290 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:49:21,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:49:21,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:49:21,291 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:49:21,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:49:21,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1684393161, now seen corresponding path program 1 times [2020-11-30 01:49:21,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:49:21,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777373591] [2020-11-30 01:49:21,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:49:21,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:49:21,358 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:49:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:49:21,398 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:49:21,422 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 01:49:21,422 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:49:21,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:49:21,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:49:21 BoogieIcfgContainer [2020-11-30 01:49:21,452 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:49:21,452 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:49:21,453 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:49:21,453 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:49:21,454 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:49:20" (3/4) ... [2020-11-30 01:49:21,457 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:49:21,457 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:49:21,460 INFO L168 Benchmark]: Toolchain (without parser) took 1622.02 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 67.4 MB in the beginning and 83.7 MB in the end (delta: -16.3 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:21,461 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 98.6 MB. Free memory was 56.1 MB in the beginning and 56.0 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:49:21,461 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.25 ms. Allocated memory is still 98.6 MB. Free memory was 67.4 MB in the beginning and 74.4 MB in the end (delta: -7.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:21,462 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.36 ms. Allocated memory is still 98.6 MB. Free memory was 74.4 MB in the beginning and 72.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:21,463 INFO L168 Benchmark]: Boogie Preprocessor took 55.83 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 71.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:21,464 INFO L168 Benchmark]: RCFGBuilder took 689.90 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 42.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:21,465 INFO L168 Benchmark]: TraceAbstraction took 486.57 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 42.3 MB in the beginning and 84.5 MB in the end (delta: -42.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:49:21,466 INFO L168 Benchmark]: Witness Printer took 5.11 ms. Allocated memory is still 119.5 MB. Free memory was 84.5 MB in the beginning and 83.7 MB in the end (delta: 734.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:21,470 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 98.6 MB. Free memory was 56.1 MB in the beginning and 56.0 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 330.25 ms. Allocated memory is still 98.6 MB. Free memory was 67.4 MB in the beginning and 74.4 MB in the end (delta: -7.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.36 ms. Allocated memory is still 98.6 MB. Free memory was 74.4 MB in the beginning and 72.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.83 ms. Allocated memory is still 98.6 MB. Free memory was 72.8 MB in the beginning and 71.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 689.90 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 42.9 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 486.57 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 42.3 MB in the beginning and 84.5 MB in the end (delta: -42.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.11 ms. Allocated memory is still 119.5 MB. Free memory was 84.5 MB in the beginning and 83.7 MB in the end (delta: 734.3 kB). Peak memory consumption was 2.1 MB. 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 82, overapproximation of bitwiseAnd at line 23, overapproximation of someUnaryFLOAToperation at line 78, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L13] static const float huge_ceil = 1.0e30; [L78] float x = -0.0f; [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000] [L25] COND FALSE !(j0 < 23) [L45] COND TRUE !((ix) < 0x7f800000L) [L46] return x + x; VAL [huge_ceil=1000000000000000000000000000000] [L79] float res = ceil_float(x); [L82] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_ceil=1000000000000000000000000000000] [L82] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_1092a.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:49:23,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:49:23,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:49:24,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:49:24,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:49:24,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:49:24,035 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:49:24,037 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:49:24,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:49:24,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:49:24,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:49:24,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:49:24,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:49:24,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:49:24,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:49:24,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:49:24,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:49:24,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:49:24,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:49:24,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:49:24,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:49:24,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:49:24,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:49:24,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:49:24,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:49:24,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:49:24,099 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:49:24,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:49:24,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:49:24,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:49:24,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:49:24,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:49:24,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:49:24,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:49:24,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:49:24,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:49:24,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:49:24,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:49:24,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:49:24,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:49:24,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:49:24,116 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 01:49:24,162 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:49:24,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:49:24,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:49:24,165 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:49:24,165 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:49:24,165 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:49:24,165 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:49:24,166 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:49:24,166 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:49:24,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:49:24,169 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:49:24,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:49:24,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:49:24,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:49:24,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:49:24,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:49:24,170 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:49:24,171 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:49:24,171 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:49:24,171 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:49:24,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:49:24,171 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:49:24,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:49:24,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:49:24,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:49:24,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:49:24,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:49:24,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:49:24,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:49:24,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:49:24,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:49:24,174 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 01:49:24,174 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:49:24,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:49:24,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:49:24,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:49:24,175 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_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51b19897c11e4f835362356179f819ee4e466264 [2020-11-30 01:49:24,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:49:24,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:49:24,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:49:24,635 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:49:24,638 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:49:24,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2020-11-30 01:49:24,710 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/data/603ec0769/ac0ef238f8e143f3ac50ac153e60b812/FLAG03dc27002 [2020-11-30 01:49:25,258 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:49:25,262 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2020-11-30 01:49:25,271 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/data/603ec0769/ac0ef238f8e143f3ac50ac153e60b812/FLAG03dc27002 [2020-11-30 01:49:25,629 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/data/603ec0769/ac0ef238f8e143f3ac50ac153e60b812 [2020-11-30 01:49:25,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:49:25,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:49:25,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:49:25,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:49:25,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:49:25,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:49:25" (1/1) ... [2020-11-30 01:49:25,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63faae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:25, skipping insertion in model container [2020-11-30 01:49:25,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:49:25" (1/1) ... [2020-11-30 01:49:25,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:49:25,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:49:25,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:49:25,958 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:49:26,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:49:26,041 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:49:26,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:26 WrapperNode [2020-11-30 01:49:26,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:49:26,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:49:26,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:49:26,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:49:26,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:26" (1/1) ... [2020-11-30 01:49:26,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:26" (1/1) ... [2020-11-30 01:49:26,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:49:26,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:49:26,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:49:26,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:49:26,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:26" (1/1) ... [2020-11-30 01:49:26,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:26" (1/1) ... [2020-11-30 01:49:26,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:26" (1/1) ... [2020-11-30 01:49:26,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:26" (1/1) ... [2020-11-30 01:49:26,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:26" (1/1) ... [2020-11-30 01:49:26,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:26" (1/1) ... [2020-11-30 01:49:26,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:26" (1/1) ... [2020-11-30 01:49:26,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:49:26,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:49:26,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:49:26,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:49:26,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:49:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:49:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:49:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 01:49:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 01:49:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:49:26,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:49:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 01:49:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 01:49:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:49:27,095 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:49:27,096 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 01:49:27,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:49:27 BoogieIcfgContainer [2020-11-30 01:49:27,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:49:27,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:49:27,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:49:27,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:49:27,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:49:25" (1/3) ... [2020-11-30 01:49:27,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d53182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:49:27, skipping insertion in model container [2020-11-30 01:49:27,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:26" (2/3) ... [2020-11-30 01:49:27,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d53182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:49:27, skipping insertion in model container [2020-11-30 01:49:27,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:49:27" (3/3) ... [2020-11-30 01:49:27,106 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2020-11-30 01:49:27,118 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:49:27,122 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:49:27,135 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:49:27,159 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:49:27,159 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:49:27,159 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:49:27,159 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:49:27,160 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:49:27,160 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:49:27,160 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:49:27,160 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:49:27,173 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-30 01:49:27,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:49:27,178 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:49:27,179 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:49:27,180 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:49:27,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:49:27,186 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-11-30 01:49:27,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:49:27,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694544558] [2020-11-30 01:49:27,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 01:49:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:49:27,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 01:49:27,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:49:27,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:49:27,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:49:27,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:49:27,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694544558] [2020-11-30 01:49:27,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:49:27,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 01:49:27,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296278556] [2020-11-30 01:49:27,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:49:27,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:49:27,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:49:27,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:49:27,384 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-11-30 01:49:27,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:49:27,411 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-11-30 01:49:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:49:27,412 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 01:49:27,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:49:27,425 INFO L225 Difference]: With dead ends: 59 [2020-11-30 01:49:27,426 INFO L226 Difference]: Without dead ends: 27 [2020-11-30 01:49:27,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:49:27,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-30 01:49:27,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-30 01:49:27,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-30 01:49:27,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-11-30 01:49:27,471 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-11-30 01:49:27,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:49:27,472 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-30 01:49:27,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:49:27,472 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-11-30 01:49:27,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:49:27,473 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:49:27,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:49:27,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:49:27,688 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:49:27,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:49:27,689 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-11-30 01:49:27,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:49:27,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441489752] [2020-11-30 01:49:27,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 01:49:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:49:27,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 01:49:27,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:49:27,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:49:27,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:49:28,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:49:28,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441489752] [2020-11-30 01:49:28,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:49:28,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 01:49:28,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406387160] [2020-11-30 01:49:28,054 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:49:28,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:49:28,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:49:28,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:49:28,056 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 8 states. [2020-11-30 01:49:28,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:49:28,277 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2020-11-30 01:49:28,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:49:28,278 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-30 01:49:28,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:49:28,279 INFO L225 Difference]: With dead ends: 39 [2020-11-30 01:49:28,279 INFO L226 Difference]: Without dead ends: 21 [2020-11-30 01:49:28,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:49:28,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-30 01:49:28,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-30 01:49:28,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-30 01:49:28,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-30 01:49:28,286 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2020-11-30 01:49:28,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:49:28,286 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-30 01:49:28,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:49:28,287 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-30 01:49:28,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:49:28,288 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:49:28,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:49:28,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:49:28,506 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:49:28,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:49:28,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2020-11-30 01:49:28,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:49:28,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682327044] [2020-11-30 01:49:28,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 01:49:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:49:28,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 01:49:28,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:49:28,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:49:28,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:49:29,077 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-30 01:49:29,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:49:29,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682327044] [2020-11-30 01:49:29,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:49:29,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-30 01:49:29,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180512917] [2020-11-30 01:49:29,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:49:29,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:49:29,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:49:29,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:49:29,280 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2020-11-30 01:49:29,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:49:29,512 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-11-30 01:49:29,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:49:29,520 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-30 01:49:29,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:49:29,521 INFO L225 Difference]: With dead ends: 33 [2020-11-30 01:49:29,521 INFO L226 Difference]: Without dead ends: 21 [2020-11-30 01:49:29,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 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 01:49:29,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-30 01:49:29,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-30 01:49:29,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-30 01:49:29,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-11-30 01:49:29,527 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2020-11-30 01:49:29,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:49:29,527 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-11-30 01:49:29,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:49:29,527 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-11-30 01:49:29,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:49:29,528 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:49:29,528 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:49:29,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:49:29,739 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:49:29,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:49:29,740 INFO L82 PathProgramCache]: Analyzing trace with hash 879764433, now seen corresponding path program 1 times [2020-11-30 01:49:29,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:49:29,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615368726] [2020-11-30 01:49:29,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/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 01:49:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:49:29,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 01:49:29,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:49:29,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:49:29,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:49:29,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:49:29,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615368726] [2020-11-30 01:49:29,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:49:29,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-30 01:49:29,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519749223] [2020-11-30 01:49:29,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-30 01:49:29,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:49:29,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-30 01:49:29,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:49:29,987 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 9 states. [2020-11-30 01:49:30,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:49:30,194 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-11-30 01:49:30,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:49:30,195 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-11-30 01:49:30,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:49:30,196 INFO L225 Difference]: With dead ends: 24 [2020-11-30 01:49:30,196 INFO L226 Difference]: Without dead ends: 21 [2020-11-30 01:49:30,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:49:30,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-30 01:49:30,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-30 01:49:30,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-30 01:49:30,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-11-30 01:49:30,202 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2020-11-30 01:49:30,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:49:30,202 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-11-30 01:49:30,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-30 01:49:30,202 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-11-30 01:49:30,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 01:49:30,203 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:49:30,203 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] [2020-11-30 01:49:30,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 01:49:30,423 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:49:30,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:49:30,424 INFO L82 PathProgramCache]: Analyzing trace with hash -733783834, now seen corresponding path program 1 times [2020-11-30 01:49:30,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:49:30,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078766853] [2020-11-30 01:49:30,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/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 01:49:30,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:49:30,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 01:49:30,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:49:30,658 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 01:49:30,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:49:30,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:49:31,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:49:31,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078766853] [2020-11-30 01:49:31,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:49:31,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-11-30 01:49:31,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935605531] [2020-11-30 01:49:31,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-30 01:49:31,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:49:31,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-30 01:49:31,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-11-30 01:49:31,074 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 16 states. [2020-11-30 01:49:31,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:49:31,502 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-11-30 01:49:31,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 01:49:31,503 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2020-11-30 01:49:31,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:49:31,504 INFO L225 Difference]: With dead ends: 21 [2020-11-30 01:49:31,504 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:49:31,505 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-11-30 01:49:31,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:49:31,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:49:31,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:49:31,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:49:31,505 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-30 01:49:31,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:49:31,506 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:49:31,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-30 01:49:31,506 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:49:31,506 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:49:31,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-30 01:49:31,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:49:31,960 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-11-30 01:49:32,180 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-11-30 01:49:32,184 INFO L274 CegarLoopResult]: For program point L27(lines 27 33) no Hoare annotation was computed. [2020-11-30 01:49:32,184 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-30 01:49:32,184 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 01:49:32,184 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 01:49:32,184 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:49:32,184 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:49:32,184 INFO L274 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-11-30 01:49:32,184 INFO L274 CegarLoopResult]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2020-11-30 01:49:32,185 INFO L270 CegarLoopResult]: At program point L61-2(lines 61 65) the Hoare annotation is: (let ((.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= ULTIMATE.start_ceil_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))))) |ULTIMATE.start_main_#t~short15| (= .cse0 ULTIMATE.start_main_~res~0))) [2020-11-30 01:49:32,185 INFO L274 CegarLoopResult]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2020-11-30 01:49:32,185 INFO L274 CegarLoopResult]: For program point L45(lines 45 48) no Hoare annotation was computed. [2020-11-30 01:49:32,185 INFO L277 CegarLoopResult]: At program point L87(lines 70 88) the Hoare annotation is: true [2020-11-30 01:49:32,185 INFO L274 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2020-11-30 01:49:32,185 INFO L274 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-11-30 01:49:32,186 INFO L270 CegarLoopResult]: At program point L55(lines 15 56) the Hoare annotation is: (let ((.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= ULTIMATE.start_ceil_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))))))) [2020-11-30 01:49:32,186 INFO L274 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-11-30 01:49:32,186 INFO L274 CegarLoopResult]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2020-11-30 01:49:32,186 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:49:32,186 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 01:49:32,186 INFO L274 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-11-30 01:49:32,186 INFO L274 CegarLoopResult]: For program point L82-2(lines 82 85) no Hoare annotation was computed. [2020-11-30 01:49:32,186 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:49:32,186 INFO L274 CegarLoopResult]: For program point L25(lines 25 49) no Hoare annotation was computed. [2020-11-30 01:49:32,186 INFO L274 CegarLoopResult]: For program point L50(lines 50 54) no Hoare annotation was computed. [2020-11-30 01:49:32,186 INFO L274 CegarLoopResult]: For program point L50-1(lines 15 56) no Hoare annotation was computed. [2020-11-30 01:49:32,187 INFO L274 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-11-30 01:49:32,187 INFO L270 CegarLoopResult]: At program point L67(lines 58 68) the Hoare annotation is: (let ((.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_ceil_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))) (= .cse0 (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))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))))) |ULTIMATE.start_main_#t~short15| (= .cse0 ULTIMATE.start_main_~res~0))) [2020-11-30 01:49:32,187 INFO L274 CegarLoopResult]: For program point L26(lines 26 43) no Hoare annotation was computed. [2020-11-30 01:49:32,187 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-11-30 01:49:32,187 INFO L270 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= ULTIMATE.start_ceil_float_~x (fp (_ bv1 1) (_ bv0 8) (_ bv0 23))) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-11-30 01:49:32,187 INFO L274 CegarLoopResult]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2020-11-30 01:49:32,199 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,204 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,210 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,210 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,210 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,211 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,211 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,212 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,212 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,213 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,213 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,213 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,213 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,217 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,217 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,217 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,218 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,218 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,218 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,218 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,219 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,222 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,222 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,222 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,223 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,223 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,225 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,226 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,226 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,233 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,234 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,234 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,234 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,235 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,235 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,236 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,237 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,238 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,238 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,238 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,239 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,239 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,240 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,243 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:49:32 BoogieIcfgContainer [2020-11-30 01:49:32,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:49:32,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:49:32,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:49:32,247 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:49:32,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:49:27" (3/4) ... [2020-11-30 01:49:32,252 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:49:32,266 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-30 01:49:32,266 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 01:49:32,266 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:49:32,267 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:49:32,295 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) [2020-11-30 01:49:32,297 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res [2020-11-30 01:49:32,298 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~bvadd64(\result, 4294967295bv32) == 0bv32) && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res [2020-11-30 01:49:32,340 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e7e02bc1-9ef9-4a6c-a6be-58bdf3d881b8/bin/utaipan/witness.graphml [2020-11-30 01:49:32,340 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:49:32,342 INFO L168 Benchmark]: Toolchain (without parser) took 6705.41 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 45.8 MB in the beginning and 42.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:32,342 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 50.3 MB. Free memory was 31.2 MB in the beginning and 31.1 MB in the end (delta: 35.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:49:32,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.22 ms. Allocated memory is still 69.2 MB. Free memory was 45.7 MB in the beginning and 52.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:32,343 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.24 ms. Allocated memory is still 69.2 MB. Free memory was 51.8 MB in the beginning and 50.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:32,344 INFO L168 Benchmark]: Boogie Preprocessor took 70.18 ms. Allocated memory is still 69.2 MB. Free memory was 50.2 MB in the beginning and 48.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:32,347 INFO L168 Benchmark]: RCFGBuilder took 916.48 ms. Allocated memory is still 69.2 MB. Free memory was 48.4 MB in the beginning and 46.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:32,350 INFO L168 Benchmark]: TraceAbstraction took 5146.84 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 46.7 MB in the beginning and 46.6 MB in the end (delta: 53.6 kB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:32,351 INFO L168 Benchmark]: Witness Printer took 93.78 ms. Allocated memory is still 90.2 MB. Free memory was 46.6 MB in the beginning and 42.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:32,353 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 50.3 MB. Free memory was 31.2 MB in the beginning and 31.1 MB in the end (delta: 35.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 404.22 ms. Allocated memory is still 69.2 MB. Free memory was 45.7 MB in the beginning and 52.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.24 ms. Allocated memory is still 69.2 MB. Free memory was 51.8 MB in the beginning and 50.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.18 ms. Allocated memory is still 69.2 MB. Free memory was 50.2 MB in the beginning and 48.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 916.48 ms. Allocated memory is still 69.2 MB. Free memory was 48.4 MB in the beginning and 46.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5146.84 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 46.7 MB in the beginning and 46.6 MB in the end (delta: 53.6 kB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. * Witness Printer took 93.78 ms. Allocated memory is still 90.2 MB. Free memory was 46.6 MB in the beginning and 42.9 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant [2020-11-30 01:49:32,373 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,374 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,374 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,374 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,374 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,375 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 61]: Loop Invariant [2020-11-30 01:49:32,375 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,376 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,376 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,376 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,376 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,379 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,379 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,379 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res - InvariantResult [Line: 15]: Loop Invariant [2020-11-30 01:49:32,392 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,392 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,392 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,393 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,393 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,394 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,395 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant [2020-11-30 01:49:32,396 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,398 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,399 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:49:32,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,400 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,400 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,400 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-30 01:49:32,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:49:32,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~bvadd64(\result, 4294967295bv32) == 0bv32) && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 197 SDslu, 80 SDs, 0 SdLazy, 113 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 223 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 31 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 134 ConstructedInterpolants, 8 QuantifiedInterpolants, 8650 SizeOfPredicates, 26 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 35 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...