./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.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_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/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 712005727f62c46a009e5aa995b5d1c386dc6cd1 ............................................................................................................................................................................................................................................................................................................................. 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_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/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 712005727f62c46a009e5aa995b5d1c386dc6cd1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 01:49:31,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:49:31,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:49:31,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:49:31,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:49:31,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:49:31,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:49:31,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:49:31,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:49:31,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:49:31,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:49:31,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:49:31,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:49:31,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:49:31,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:49:31,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:49:31,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:49:31,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:49:31,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:49:31,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:49:31,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:49:31,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:49:31,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:49:31,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:49:31,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:49:31,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:49:31,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:49:31,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:49:31,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:49:31,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:49:31,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:49:31,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:49:31,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:49:31,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:49:31,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:49:31,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:49:31,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:49:31,392 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:49:31,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:49:31,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:49:31,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:49:31,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:49:31,423 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:49:31,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:49:31,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:49:31,424 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:49:31,425 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:49:31,425 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:49:31,425 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:49:31,425 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:49:31,426 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:49:31,426 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:49:31,426 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:49:31,426 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:49:31,427 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:49:31,427 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:49:31,427 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:49:31,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:49:31,428 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:49:31,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:49:31,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:49:31,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:49:31,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:49:31,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:49:31,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:49:31,430 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:49:31,430 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:49:31,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:49:31,431 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:49:31,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:49:31,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:49:31,432 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:49:31,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:49:31,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:49:31,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:49:31,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:49:31,433 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:49:31,433 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:49:31,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:49:31,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:49:31,434 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:49:31,435 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:49:31,435 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_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 712005727f62c46a009e5aa995b5d1c386dc6cd1 [2020-11-30 01:49:31,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:49:31,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:49:31,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:49:31,781 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:49:31,782 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:49:31,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2020-11-30 01:49:31,880 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/data/7cd2dcd9d/0c21884c99264f479b670bae7c5e4865/FLAG86feba712 [2020-11-30 01:49:32,431 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:49:32,432 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2020-11-30 01:49:32,445 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/data/7cd2dcd9d/0c21884c99264f479b670bae7c5e4865/FLAG86feba712 [2020-11-30 01:49:32,781 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/data/7cd2dcd9d/0c21884c99264f479b670bae7c5e4865 [2020-11-30 01:49:32,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:49:32,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:49:32,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:49:32,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:49:32,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:49:32,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:49:32" (1/1) ... [2020-11-30 01:49:32,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@466fd139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:32, skipping insertion in model container [2020-11-30 01:49:32,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:49:32" (1/1) ... [2020-11-30 01:49:32,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:49:32,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:49:33,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:49:33,144 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:49:33,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:49:33,237 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:49:33,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:33 WrapperNode [2020-11-30 01:49:33,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:49:33,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:49:33,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:49:33,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:49:33,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:33" (1/1) ... [2020-11-30 01:49:33,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:33" (1/1) ... [2020-11-30 01:49:33,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:49:33,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:49:33,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:49:33,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:49:33,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:33" (1/1) ... [2020-11-30 01:49:33,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:33" (1/1) ... [2020-11-30 01:49:33,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:33" (1/1) ... [2020-11-30 01:49:33,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:33" (1/1) ... [2020-11-30 01:49:33,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:33" (1/1) ... [2020-11-30 01:49:33,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:33" (1/1) ... [2020-11-30 01:49:33,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:33" (1/1) ... [2020-11-30 01:49:33,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:49:33,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:49:33,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:49:33,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:49:33,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/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 01:49:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:49:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:49:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:49:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 01:49:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 01:49:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:49:33,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:49:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:49:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-30 01:49:33,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:49:34,243 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:49:34,244 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-30 01:49:34,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:49:34 BoogieIcfgContainer [2020-11-30 01:49:34,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:49:34,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:49:34,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:49:34,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:49:34,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:49:32" (1/3) ... [2020-11-30 01:49:34,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd11459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:49:34, skipping insertion in model container [2020-11-30 01:49:34,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:33" (2/3) ... [2020-11-30 01:49:34,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd11459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:49:34, skipping insertion in model container [2020-11-30 01:49:34,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:49:34" (3/3) ... [2020-11-30 01:49:34,257 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2020-11-30 01:49:34,277 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:49:34,282 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:49:34,295 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:49:34,324 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:49:34,324 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:49:34,325 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:49:34,325 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:49:34,325 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:49:34,325 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:49:34,325 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:49:34,325 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:49:34,341 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-11-30 01:49:34,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:49:34,347 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:49:34,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:49:34,349 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:49:34,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:49:34,356 INFO L82 PathProgramCache]: Analyzing trace with hash 938463641, now seen corresponding path program 1 times [2020-11-30 01:49:34,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:49:34,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32621038] [2020-11-30 01:49:34,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:49:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:49:34,536 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 01:49:34,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32621038] [2020-11-30 01:49:34,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:49:34,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:49:34,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205895797] [2020-11-30 01:49:34,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:49:34,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:49:34,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:49:34,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:49:34,569 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-11-30 01:49:34,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:49:34,595 INFO L93 Difference]: Finished difference Result 59 states and 97 transitions. [2020-11-30 01:49:34,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:49:34,596 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-30 01:49:34,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:49:34,622 INFO L225 Difference]: With dead ends: 59 [2020-11-30 01:49:34,622 INFO L226 Difference]: Without dead ends: 28 [2020-11-30 01:49:34,625 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 01:49:34,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-30 01:49:34,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-30 01:49:34,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-30 01:49:34,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-11-30 01:49:34,679 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 7 [2020-11-30 01:49:34,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:49:34,679 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-11-30 01:49:34,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:49:34,680 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-11-30 01:49:34,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:49:34,680 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:49:34,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:49:34,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:49:34,681 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:49:34,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:49:34,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1255874094, now seen corresponding path program 1 times [2020-11-30 01:49:34,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:49:34,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340150803] [2020-11-30 01:49:34,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:49:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:49:34,779 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:49:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:49:34,842 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:49:34,894 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 01:49:34,894 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:49:34,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:49:34,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:49:34 BoogieIcfgContainer [2020-11-30 01:49:34,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:49:34,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:49:34,968 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:49:34,968 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:49:34,969 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:49:34" (3/4) ... [2020-11-30 01:49:34,972 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:49:34,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:49:34,979 INFO L168 Benchmark]: Toolchain (without parser) took 2189.72 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 64.7 MB in the beginning and 68.7 MB in the end (delta: -4.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:34,980 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 92.3 MB. Free memory is still 49.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:49:34,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.02 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 64.7 MB in the beginning and 92.7 MB in the end (delta: -28.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:34,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.61 ms. Allocated memory is still 117.4 MB. Free memory was 92.7 MB in the beginning and 90.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:34,984 INFO L168 Benchmark]: Boogie Preprocessor took 47.19 ms. Allocated memory is still 117.4 MB. Free memory was 90.6 MB in the beginning and 89.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:34,985 INFO L168 Benchmark]: RCFGBuilder took 885.22 ms. Allocated memory is still 117.4 MB. Free memory was 89.0 MB in the beginning and 93.9 MB in the end (delta: -4.9 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:34,986 INFO L168 Benchmark]: TraceAbstraction took 718.10 ms. Allocated memory is still 117.4 MB. Free memory was 93.3 MB in the beginning and 69.0 MB in the end (delta: 24.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:49:34,987 INFO L168 Benchmark]: Witness Printer took 6.82 ms. Allocated memory is still 117.4 MB. Free memory was 69.0 MB in the beginning and 68.7 MB in the end (delta: 272.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:49:35,002 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 92.3 MB. Free memory is still 49.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 451.02 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 64.7 MB in the beginning and 92.7 MB in the end (delta: -28.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.61 ms. Allocated memory is still 117.4 MB. Free memory was 92.7 MB in the beginning and 90.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.19 ms. Allocated memory is still 117.4 MB. Free memory was 90.6 MB in the beginning and 89.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 885.22 ms. Allocated memory is still 117.4 MB. Free memory was 89.0 MB in the beginning and 93.9 MB in the end (delta: -4.9 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 718.10 ms. Allocated memory is still 117.4 MB. Free memory was 93.3 MB in the beginning and 69.0 MB in the end (delta: 24.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 6.82 ms. Allocated memory is still 117.4 MB. Free memory was 69.0 MB in the beginning and 68.7 MB in the end (delta: 272.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 123, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of bitwiseAnd at line 48, overapproximation of someUnaryFLOAToperation at line 119, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L119] float x = -0.0f; [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 [L49] hx = sx & 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L120] float res = __ieee754_expf(x); [L123] COND TRUE res != 1.0f VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L3] __assert_fail("0", "float_req_bl_0832b.c", 3, "reach_error") VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 38 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=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:49:37,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:49:37,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:49:37,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-30 01:49:37,924 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:49:37,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:49:37,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:49:37,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:49:37,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:49:37,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:49:37,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:49:37,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:49:37,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:49:37,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:49:37,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:49:37,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:49:37,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-30 01:49:37,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:49:37,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:49:37,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:49:37,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 01:49:38,033 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:49:38,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:49:38,039 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:49:38,039 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:49:38,040 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:49:38,040 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:49:38,040 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:49:38,040 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:49:38,041 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:49:38,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:49:38,044 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:49:38,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:49:38,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:49:38,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:49:38,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:49:38,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:49:38,046 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:49:38,046 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:49:38,046 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:49:38,046 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:49:38,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:49:38,063 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:49:38,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:49:38,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:49:38,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:49:38,064 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:49:38,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:49:38,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:49:38,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:49:38,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:49:38,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:49:38,066 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 01:49:38,066 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:49:38,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:49:38,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:49:38,067 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:49:38,067 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_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 712005727f62c46a009e5aa995b5d1c386dc6cd1 [2020-11-30 01:49:38,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:49:38,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:49:38,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:49:38,556 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:49:38,557 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:49:38,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2020-11-30 01:49:38,633 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/data/9fe53272c/9d9fd87fb1da4ad48a6466698c912a4e/FLAG8e7f6e091 [2020-11-30 01:49:39,335 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:49:39,336 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2020-11-30 01:49:39,347 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/data/9fe53272c/9d9fd87fb1da4ad48a6466698c912a4e/FLAG8e7f6e091 [2020-11-30 01:49:39,664 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/data/9fe53272c/9d9fd87fb1da4ad48a6466698c912a4e [2020-11-30 01:49:39,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:49:39,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:49:39,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:49:39,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:49:39,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:49:39,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:49:39" (1/1) ... [2020-11-30 01:49:39,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@600d2147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:39, skipping insertion in model container [2020-11-30 01:49:39,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:49:39" (1/1) ... [2020-11-30 01:49:39,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:49:39,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:49:39,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:49:39,929 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:49:40,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:49:40,052 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:49:40,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:40 WrapperNode [2020-11-30 01:49:40,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:49:40,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:49:40,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:49:40,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:49:40,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:40" (1/1) ... [2020-11-30 01:49:40,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:40" (1/1) ... [2020-11-30 01:49:40,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:49:40,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:49:40,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:49:40,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:49:40,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:40" (1/1) ... [2020-11-30 01:49:40,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:40" (1/1) ... [2020-11-30 01:49:40,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:40" (1/1) ... [2020-11-30 01:49:40,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:40" (1/1) ... [2020-11-30 01:49:40,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:40" (1/1) ... [2020-11-30 01:49:40,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:40" (1/1) ... [2020-11-30 01:49:40,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:40" (1/1) ... [2020-11-30 01:49:40,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:49:40,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:49:40,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:49:40,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:49:40,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/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 01:49:40,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-30 01:49:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:49:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:49:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 01:49:40,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 01:49:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:49:40,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:49:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 01:49:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 01:49:40,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:49:50,264 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:49:50,264 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-30 01:49:50,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:49:50 BoogieIcfgContainer [2020-11-30 01:49:50,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:49:50,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:49:50,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:49:50,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:49:50,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:49:39" (1/3) ... [2020-11-30 01:49:50,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a40221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:49:50, skipping insertion in model container [2020-11-30 01:49:50,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:49:40" (2/3) ... [2020-11-30 01:49:50,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67a40221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:49:50, skipping insertion in model container [2020-11-30 01:49:50,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:49:50" (3/3) ... [2020-11-30 01:49:50,279 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2020-11-30 01:49:50,293 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:49:50,298 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:49:50,312 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:49:50,347 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:49:50,348 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:49:50,348 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:49:50,348 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:49:50,348 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:49:50,348 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:49:50,348 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:49:50,348 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:49:50,361 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-11-30 01:49:50,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:49:50,366 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:49:50,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:49:50,367 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:49:50,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:49:50,372 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2020-11-30 01:49:50,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:49:50,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228463354] [2020-11-30 01:49:50,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/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 01:49:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:49:51,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 01:49:51,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:49:51,101 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 01:49:51,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:49:51,106 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 01:49:51,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228463354] [2020-11-30 01:49:51,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:49:51,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 01:49:51,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982775026] [2020-11-30 01:49:51,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:49:51,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:49:51,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:49:51,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:49:51,134 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-11-30 01:49:51,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:49:51,157 INFO L93 Difference]: Finished difference Result 71 states and 113 transitions. [2020-11-30 01:49:51,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:49:51,159 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-30 01:49:51,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:49:51,171 INFO L225 Difference]: With dead ends: 71 [2020-11-30 01:49:51,171 INFO L226 Difference]: Without dead ends: 33 [2020-11-30 01:49:51,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 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 01:49:51,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-30 01:49:51,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-30 01:49:51,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-30 01:49:51,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2020-11-30 01:49:51,216 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2020-11-30 01:49:51,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:49:51,216 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2020-11-30 01:49:51,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:49:51,217 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2020-11-30 01:49:51,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:49:51,218 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:49:51,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:49:51,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:49:51,434 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:49:51,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:49:51,435 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2020-11-30 01:49:51,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:49:51,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557302788] [2020-11-30 01:49:51,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/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 01:49:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:49:52,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:49:52,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:49:52,252 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 01:49:52,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:49:52,348 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 01:49:52,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1557302788] [2020-11-30 01:49:52,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:49:52,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 01:49:52,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601970528] [2020-11-30 01:49:52,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 01:49:52,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:49:52,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 01:49:52,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 01:49:52,352 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 8 states. [2020-11-30 01:49:59,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:49:59,901 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2020-11-30 01:50:00,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:50:00,031 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-11-30 01:50:00,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:50:00,032 INFO L225 Difference]: With dead ends: 54 [2020-11-30 01:50:00,032 INFO L226 Difference]: Without dead ends: 33 [2020-11-30 01:50:00,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:50:00,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-30 01:50:00,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2020-11-30 01:50:00,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-30 01:50:00,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-11-30 01:50:00,039 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2020-11-30 01:50:00,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:50:00,040 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-11-30 01:50:00,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 01:50:00,040 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-11-30 01:50:00,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:50:00,041 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:50:00,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:50:00,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:50:00,254 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:50:00,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:50:00,255 INFO L82 PathProgramCache]: Analyzing trace with hash -239562945, now seen corresponding path program 1 times [2020-11-30 01:50:00,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:50:00,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1391785096] [2020-11-30 01:50:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/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 01:50:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:50:00,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 01:50:00,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:50:01,098 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 01:50:01,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:50:02,322 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 01:50:02,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1391785096] [2020-11-30 01:50:02,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:50:02,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-30 01:50:02,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543007218] [2020-11-30 01:50:02,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:50:02,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:50:02,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:50:02,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:50:02,325 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 10 states. [2020-11-30 01:50:16,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:50:16,799 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-11-30 01:50:16,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 01:50:16,800 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-11-30 01:50:16,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:50:16,800 INFO L225 Difference]: With dead ends: 33 [2020-11-30 01:50:16,800 INFO L226 Difference]: Without dead ends: 29 [2020-11-30 01:50:16,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-11-30 01:50:16,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-30 01:50:16,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-30 01:50:16,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-30 01:50:16,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-11-30 01:50:16,806 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2020-11-30 01:50:16,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:50:16,806 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-11-30 01:50:16,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:50:16,806 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-11-30 01:50:16,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:50:16,807 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:50:16,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:50:17,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:50:17,014 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:50:17,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:50:17,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1708303706, now seen corresponding path program 1 times [2020-11-30 01:50:17,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 01:50:17,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1978820973] [2020-11-30 01:50:17,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/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 01:50:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:50:18,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:50:18,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:50:18,615 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 01:50:18,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:50:19,046 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-30 01:50:19,209 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 01:50:19,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1978820973] [2020-11-30 01:50:19,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:50:19,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-30 01:50:19,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063459450] [2020-11-30 01:50:19,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:50:19,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 01:50:19,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:50:19,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:50:19,211 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2020-11-30 01:50:19,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:50:19,292 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-11-30 01:50:19,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:50:19,294 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-30 01:50:19,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:50:19,295 INFO L225 Difference]: With dead ends: 29 [2020-11-30 01:50:19,295 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:50:19,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 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 01:50:19,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:50:19,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:50:19,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:50:19,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:50:19,296 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-30 01:50:19,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:50:19,296 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:50:19,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:50:19,296 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:50:19,296 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:50:19,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 01:50:19,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:50:19,626 INFO L274 CegarLoopResult]: For program point L60(lines 60 75) no Hoare annotation was computed. [2020-11-30 01:50:19,627 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 01:50:19,627 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 01:50:19,627 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:50:19,627 INFO L274 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2020-11-30 01:50:19,627 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 01:50:19,627 INFO L274 CegarLoopResult]: For program point L61-2(lines 61 70) no Hoare annotation was computed. [2020-11-30 01:50:19,627 INFO L274 CegarLoopResult]: For program point L53(lines 53 54) no Hoare annotation was computed. [2020-11-30 01:50:19,628 INFO L274 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-11-30 01:50:19,628 INFO L270 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: false [2020-11-30 01:50:19,628 INFO L277 CegarLoopResult]: At program point L128(lines 113 129) the Hoare annotation is: true [2020-11-30 01:50:19,628 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-11-30 01:50:19,628 INFO L274 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2020-11-30 01:50:19,628 INFO L274 CegarLoopResult]: For program point L104(lines 104 108) no Hoare annotation was computed. [2020-11-30 01:50:19,628 INFO L274 CegarLoopResult]: For program point L104-1(lines 97 110) no Hoare annotation was computed. [2020-11-30 01:50:19,629 INFO L274 CegarLoopResult]: For program point L104-2(lines 104 108) no Hoare annotation was computed. [2020-11-30 01:50:19,629 INFO L274 CegarLoopResult]: For program point L55(lines 55 56) no Hoare annotation was computed. [2020-11-30 01:50:19,629 INFO L274 CegarLoopResult]: For program point L80(lines 80 83) no Hoare annotation was computed. [2020-11-30 01:50:19,629 INFO L274 CegarLoopResult]: For program point L72(lines 72 75) no Hoare annotation was computed. [2020-11-30 01:50:19,629 INFO L274 CegarLoopResult]: For program point L72-2(lines 60 75) no Hoare annotation was computed. [2020-11-30 01:50:19,629 INFO L274 CegarLoopResult]: For program point L73(lines 73 74) no Hoare annotation was computed. [2020-11-30 01:50:19,629 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 01:50:19,629 INFO L274 CegarLoopResult]: For program point L123(lines 123 126) no Hoare annotation was computed. [2020-11-30 01:50:19,630 INFO L274 CegarLoopResult]: For program point L57(lines 57 58) no Hoare annotation was computed. [2020-11-30 01:50:19,630 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 01:50:19,630 INFO L274 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-11-30 01:50:19,630 INFO L270 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-11-30 01:50:19,630 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:50:19,630 INFO L274 CegarLoopResult]: For program point L91(lines 91 95) no Hoare annotation was computed. [2020-11-30 01:50:19,630 INFO L274 CegarLoopResult]: For program point L91-1(lines 84 97) no Hoare annotation was computed. [2020-11-30 01:50:19,631 INFO L274 CegarLoopResult]: For program point L91-2(lines 91 95) no Hoare annotation was computed. [2020-11-30 01:50:19,631 INFO L274 CegarLoopResult]: For program point L84(lines 84 110) no Hoare annotation was computed. [2020-11-30 01:50:19,631 INFO L274 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-11-30 01:50:19,631 INFO L270 CegarLoopResult]: At program point L109(lines 38 111) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start___ieee754_expf_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 .cse1) (= (fp.add currentRoundingMode .cse1 .cse0) |ULTIMATE.start___ieee754_expf_#res|))) [2020-11-30 01:50:19,631 INFO L274 CegarLoopResult]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2020-11-30 01:50:19,631 INFO L270 CegarLoopResult]: At program point L43-2(lines 43 47) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_expf_~x (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (= ~huge_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-11-30 01:50:19,632 INFO L274 CegarLoopResult]: For program point L43-3(lines 43 47) no Hoare annotation was computed. [2020-11-30 01:50:19,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:50:19,651 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,651 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,657 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:50:19,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,658 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,660 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:50:19,667 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,668 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,669 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,669 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,669 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,670 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:50:19,672 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,672 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,672 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,673 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,673 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:50:19 BoogieIcfgContainer [2020-11-30 01:50:19,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:50:19,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:50:19,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:50:19,679 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:50:19,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:49:50" (3/4) ... [2020-11-30 01:50:19,683 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:50:19,704 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-30 01:50:19,704 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 01:50:19,705 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:50:19,705 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:50:19,739 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) == \result [2020-11-30 01:50:19,814 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e91a170a-3fa6-452c-9cc5-8c7ca5e1a4ef/bin/utaipan/witness.graphml [2020-11-30 01:50:19,815 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:50:19,816 INFO L168 Benchmark]: Toolchain (without parser) took 40146.87 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 41.5 MB in the beginning and 32.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 25.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:50:19,817 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 60.8 MB. Free memory is still 42.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:50:19,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.51 ms. Allocated memory is still 60.8 MB. Free memory was 41.3 MB in the beginning and 42.0 MB in the end (delta: -621.7 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:50:19,819 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.67 ms. Allocated memory is still 60.8 MB. Free memory was 41.8 MB in the beginning and 39.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:50:19,819 INFO L168 Benchmark]: Boogie Preprocessor took 52.09 ms. Allocated memory is still 60.8 MB. Free memory was 39.7 MB in the beginning and 37.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:50:19,820 INFO L168 Benchmark]: RCFGBuilder took 10101.31 ms. Allocated memory is still 60.8 MB. Free memory was 37.6 MB in the beginning and 30.2 MB in the end (delta: 7.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:50:19,820 INFO L168 Benchmark]: TraceAbstraction took 29408.08 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 29.7 MB in the beginning and 38.6 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:50:19,821 INFO L168 Benchmark]: Witness Printer took 136.62 ms. Allocated memory is still 77.6 MB. Free memory was 38.6 MB in the beginning and 32.3 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:50:19,823 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 60.8 MB. Free memory is still 42.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 382.51 ms. Allocated memory is still 60.8 MB. Free memory was 41.3 MB in the beginning and 42.0 MB in the end (delta: -621.7 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.67 ms. Allocated memory is still 60.8 MB. Free memory was 41.8 MB in the beginning and 39.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.09 ms. Allocated memory is still 60.8 MB. Free memory was 39.7 MB in the beginning and 37.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10101.31 ms. Allocated memory is still 60.8 MB. Free memory was 37.6 MB in the beginning and 30.2 MB in the end (delta: 7.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 29408.08 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 29.7 MB in the beginning and 38.6 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Witness Printer took 136.62 ms. Allocated memory is still 77.6 MB. Free memory was 38.6 MB in the beginning and 32.3 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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 * 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: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant [2020-11-30 01:50:19,835 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:50:19,836 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,838 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,839 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,839 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,839 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,839 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,840 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:50:19,841 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,841 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,841 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,841 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,841 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,842 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 43]: Loop Invariant [2020-11-30 01:50:19,842 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:50:19,843 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,843 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,843 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,844 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,844 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,844 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 01:50:19,845 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,845 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,845 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,845 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 01:50:19,845 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && huge_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 22.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 102 SDtfs, 91 SDslu, 191 SDs, 0 SdLazy, 68 SolverSat, 5 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 21.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 51 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 90 ConstructedInterpolants, 2 QuantifiedInterpolants, 9890 SizeOfPredicates, 19 NumberOfNonLiveVariables, 313 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...