./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.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_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/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 941f84fd12bbb635098ac1c65472cdf78fad6ad9 ................................................................................................................................................................................................................................................................................................................. 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_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/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 941f84fd12bbb635098ac1c65472cdf78fad6ad9 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:05:56,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:56,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:56,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:56,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:56,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:56,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:56,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:56,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:56,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:56,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:56,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:56,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:56,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:56,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:56,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:56,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:56,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:56,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:56,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:56,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:56,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:56,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:56,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:56,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:56,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:56,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:56,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:56,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:56,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:56,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:56,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:56,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:56,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:56,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:56,445 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:56,446 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:56,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:56,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:56,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:56,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:56,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:05:56,475 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:56,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:56,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:56,477 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:56,477 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:56,477 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:56,478 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:05:56,478 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:56,478 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:56,478 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:05:56,479 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:05:56,479 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:56,479 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:05:56,479 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:05:56,479 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:05:56,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:56,480 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:56,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:05:56,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:56,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:56,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:56,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:56,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:56,482 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:56,482 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:56,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:56,483 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:56,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:56,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:56,484 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:56,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:56,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:56,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:56,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:56,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:56,485 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:05:56,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:05:56,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:56,486 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:56,486 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:56,486 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_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 941f84fd12bbb635098ac1c65472cdf78fad6ad9 [2020-11-22 13:05:56,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:56,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:56,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:56,775 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:56,776 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:56,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-11-22 13:05:56,851 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/data/d9c46ae18/2e4fe80fa2614b1d995efc9fbe0e03a7/FLAGec9a0ff63 [2020-11-22 13:05:57,389 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:57,389 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-11-22 13:05:57,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/data/d9c46ae18/2e4fe80fa2614b1d995efc9fbe0e03a7/FLAGec9a0ff63 [2020-11-22 13:05:57,736 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/data/d9c46ae18/2e4fe80fa2614b1d995efc9fbe0e03a7 [2020-11-22 13:05:57,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:57,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:57,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:57,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:57,755 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:57,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:57" (1/1) ... [2020-11-22 13:05:57,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1531892d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:57, skipping insertion in model container [2020-11-22 13:05:57,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:57" (1/1) ... [2020-11-22 13:05:57,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:57,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:58,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:58,029 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:05:58,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:58,088 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:05:58,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58 WrapperNode [2020-11-22 13:05:58,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:58,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:58,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:05:58,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:05:58,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:58,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:58,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:58,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:05:58,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:05:58,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:05:58,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:58,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:58,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:58,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:58,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:58,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:58,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... [2020-11-22 13:05:58,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:05:58,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:05:58,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:05:58,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:05:58,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/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 [2020-11-22 13:05:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:05:58,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:05:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-22 13:05:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 13:05:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-22 13:05:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:05:58,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:05:58,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 13:05:58,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:05:58,993 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:05:58,993 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-22 13:05:58,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:58 BoogieIcfgContainer [2020-11-22 13:05:58,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:05:58,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:05:58,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:05:59,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:05:59,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:05:57" (1/3) ... [2020-11-22 13:05:59,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716ee83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:59, skipping insertion in model container [2020-11-22 13:05:59,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:58" (2/3) ... [2020-11-22 13:05:59,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716ee83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:59, skipping insertion in model container [2020-11-22 13:05:59,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:58" (3/3) ... [2020-11-22 13:05:59,012 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2020-11-22 13:05:59,034 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:05:59,038 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:05:59,056 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:05:59,097 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:05:59,097 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:05:59,097 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:05:59,097 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:05:59,097 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:05:59,098 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:05:59,098 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:05:59,099 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:05:59,112 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-22 13:05:59,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-22 13:05:59,117 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:59,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:59,119 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:59,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:59,125 INFO L82 PathProgramCache]: Analyzing trace with hash -583586413, now seen corresponding path program 1 times [2020-11-22 13:05:59,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:59,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839424489] [2020-11-22 13:05:59,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:59,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:59,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839424489] [2020-11-22 13:05:59,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:59,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:05:59,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169241677] [2020-11-22 13:05:59,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:05:59,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:05:59,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:05:59,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:05:59,279 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-22 13:05:59,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:59,299 INFO L93 Difference]: Finished difference Result 67 states and 107 transitions. [2020-11-22 13:05:59,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:05:59,301 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-22 13:05:59,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:59,314 INFO L225 Difference]: With dead ends: 67 [2020-11-22 13:05:59,315 INFO L226 Difference]: Without dead ends: 32 [2020-11-22 13:05:59,319 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 [2020-11-22 13:05:59,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-22 13:05:59,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-11-22 13:05:59,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-22 13:05:59,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-11-22 13:05:59,357 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 7 [2020-11-22 13:05:59,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:59,357 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-11-22 13:05:59,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:05:59,358 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-11-22 13:05:59,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:05:59,358 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:59,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:59,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:05:59,360 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:59,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:59,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1315399166, now seen corresponding path program 1 times [2020-11-22 13:05:59,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:05:59,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894048298] [2020-11-22 13:05:59,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:05:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:05:59,456 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:05:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:05:59,511 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:05:59,549 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:05:59,549 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:05:59,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:05:59,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:05:59 BoogieIcfgContainer [2020-11-22 13:05:59,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:05:59,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:05:59,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:05:59,585 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:05:59,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:58" (3/4) ... [2020-11-22 13:05:59,588 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 13:05:59,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:05:59,590 INFO L168 Benchmark]: Toolchain (without parser) took 1848.72 ms. Allocated memory is still 115.3 MB. Free memory was 83.5 MB in the beginning and 68.1 MB in the end (delta: 15.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:59,591 INFO L168 Benchmark]: CDTParser took 6.48 ms. Allocated memory is still 83.9 MB. Free memory was 55.0 MB in the beginning and 65.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:59,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.51 ms. Allocated memory is still 115.3 MB. Free memory was 82.9 MB in the beginning and 89.8 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:59,592 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.09 ms. Allocated memory is still 115.3 MB. Free memory was 89.8 MB in the beginning and 87.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:59,593 INFO L168 Benchmark]: Boogie Preprocessor took 40.04 ms. Allocated memory is still 115.3 MB. Free memory was 87.7 MB in the beginning and 85.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:59,593 INFO L168 Benchmark]: RCFGBuilder took 813.03 ms. Allocated memory is still 115.3 MB. Free memory was 85.6 MB in the beginning and 92.6 MB in the end (delta: -7.0 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:59,594 INFO L168 Benchmark]: TraceAbstraction took 587.04 ms. Allocated memory is still 115.3 MB. Free memory was 91.9 MB in the beginning and 68.8 MB in the end (delta: 23.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:59,595 INFO L168 Benchmark]: Witness Printer took 3.78 ms. Allocated memory is still 115.3 MB. Free memory was 68.8 MB in the beginning and 68.1 MB in the end (delta: 643.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:59,599 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 6.48 ms. Allocated memory is still 83.9 MB. Free memory was 55.0 MB in the beginning and 65.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 337.51 ms. Allocated memory is still 115.3 MB. Free memory was 82.9 MB in the beginning and 89.8 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.09 ms. Allocated memory is still 115.3 MB. Free memory was 89.8 MB in the beginning and 87.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.04 ms. Allocated memory is still 115.3 MB. Free memory was 87.7 MB in the beginning and 85.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 813.03 ms. Allocated memory is still 115.3 MB. Free memory was 85.6 MB in the beginning and 92.6 MB in the end (delta: -7.0 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 587.04 ms. Allocated memory is still 115.3 MB. Free memory was 91.9 MB in the beginning and 68.8 MB in the end (delta: 23.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.78 ms. Allocated memory is still 115.3 MB. Free memory was 68.8 MB in the beginning and 68.1 MB in the end (delta: 643.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 147, overapproximation of someBinaryArithmeticFLOAToperation at line 119, overapproximation of bitwiseAnd at line 118. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; [L156] float x = -1.0f / 0.0f; [L108] float y, z; [L109] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L117] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L157] float res = __ieee754_log10f(x); [L147] return x != x; [L160] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0970b.c", 3, "reach_error") VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 41 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=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:06:01,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:01,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:01,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:01,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:01,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:01,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:01,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:01,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:01,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:01,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:01,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:01,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:02,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:02,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:02,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:02,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:02,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:02,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:02,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:02,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:02,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:02,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:02,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:02,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:02,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:02,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:02,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:02,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:02,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:02,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:02,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:02,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:02,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:02,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:02,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:02,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:02,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:02,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:02,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:02,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:02,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:06:02,079 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:02,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:02,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:02,080 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:02,080 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:02,080 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:02,081 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:02,081 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:02,081 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:02,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:02,083 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:06:02,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:06:02,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:02,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:06:02,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:02,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:06:02,084 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:06:02,084 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:06:02,085 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:06:02,085 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:06:02,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:06:02,085 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:02,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:06:02,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:02,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:06:02,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:02,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:02,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:02,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:02,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:02,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:06:02,087 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:06:02,087 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:06:02,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:06:02,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:02,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:02,088 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_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 941f84fd12bbb635098ac1c65472cdf78fad6ad9 [2020-11-22 13:06:02,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:02,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:02,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:02,486 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:02,497 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:02,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-11-22 13:06:02,561 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/data/b405b1a19/3f0ef9deaec8466588ea7c96dfc490d9/FLAG4866c7924 [2020-11-22 13:06:03,121 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:03,122 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2020-11-22 13:06:03,132 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/data/b405b1a19/3f0ef9deaec8466588ea7c96dfc490d9/FLAG4866c7924 [2020-11-22 13:06:03,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/data/b405b1a19/3f0ef9deaec8466588ea7c96dfc490d9 [2020-11-22 13:06:03,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:03,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:03,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:03,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:03,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:03,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:03" (1/1) ... [2020-11-22 13:06:03,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9da52c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:03, skipping insertion in model container [2020-11-22 13:06:03,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:03" (1/1) ... [2020-11-22 13:06:03,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:03,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:03,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:03,769 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:06:03,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:03,829 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:06:03,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:03 WrapperNode [2020-11-22 13:06:03,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:03,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:03,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:06:03,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:06:03,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:03" (1/1) ... [2020-11-22 13:06:03,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:03" (1/1) ... [2020-11-22 13:06:03,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:03,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:06:03,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:06:03,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:06:03,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:03" (1/1) ... [2020-11-22 13:06:03,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:03" (1/1) ... [2020-11-22 13:06:03,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:03" (1/1) ... [2020-11-22 13:06:03,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:03" (1/1) ... [2020-11-22 13:06:03,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:03" (1/1) ... [2020-11-22 13:06:03,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:03" (1/1) ... [2020-11-22 13:06:03,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:03" (1/1) ... [2020-11-22 13:06:03,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:06:03,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:06:03,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:06:03,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:06:03,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/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 [2020-11-22 13:06:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:06:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:06:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-22 13:06:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 13:06:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:06:04,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:06:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-22 13:06:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 13:06:04,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:06:20,372 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:06:20,372 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-22 13:06:20,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:20 BoogieIcfgContainer [2020-11-22 13:06:20,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:06:20,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:06:20,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:06:20,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:06:20,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:06:03" (1/3) ... [2020-11-22 13:06:20,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d53a8c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:20, skipping insertion in model container [2020-11-22 13:06:20,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:03" (2/3) ... [2020-11-22 13:06:20,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d53a8c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:20, skipping insertion in model container [2020-11-22 13:06:20,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:20" (3/3) ... [2020-11-22 13:06:20,386 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2020-11-22 13:06:20,397 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:06:20,401 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:06:20,414 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:06:20,439 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:06:20,439 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:06:20,440 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:06:20,440 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:06:20,440 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:06:20,440 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:06:20,440 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:06:20,441 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:06:20,453 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-11-22 13:06:20,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 13:06:20,471 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:20,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:20,472 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:20,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:20,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2020-11-22 13:06:20,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:20,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301037567] [2020-11-22 13:06:20,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/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 [2020-11-22 13:06:21,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:21,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:06:21,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:21,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:21,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:21,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:21,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301037567] [2020-11-22 13:06:21,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:21,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:06:21,396 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547375031] [2020-11-22 13:06:21,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:06:21,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:21,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:06:21,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:06:21,423 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-11-22 13:06:21,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:21,443 INFO L93 Difference]: Finished difference Result 87 states and 141 transitions. [2020-11-22 13:06:21,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:06:21,444 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-22 13:06:21,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:21,456 INFO L225 Difference]: With dead ends: 87 [2020-11-22 13:06:21,456 INFO L226 Difference]: Without dead ends: 41 [2020-11-22 13:06:21,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:06:21,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-11-22 13:06:21,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-11-22 13:06:21,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-22 13:06:21,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2020-11-22 13:06:21,491 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2020-11-22 13:06:21,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:21,491 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2020-11-22 13:06:21,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:06:21,492 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-11-22 13:06:21,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:06:21,492 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:21,493 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:21,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:06:21,707 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:21,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:21,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2020-11-22 13:06:21,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:21,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1414922701] [2020-11-22 13:06:21,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/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 [2020-11-22 13:06:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:22,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:06:22,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:22,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:22,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:22,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:22,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1414922701] [2020-11-22 13:06:22,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:22,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:06:22,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266527086] [2020-11-22 13:06:22,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:06:22,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:22,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:06:22,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:06:22,555 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand 6 states. [2020-11-22 13:06:22,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:22,927 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2020-11-22 13:06:22,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:06:22,930 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-11-22 13:06:22,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:22,930 INFO L225 Difference]: With dead ends: 46 [2020-11-22 13:06:22,930 INFO L226 Difference]: Without dead ends: 12 [2020-11-22 13:06:22,931 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:06:22,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-22 13:06:22,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-22 13:06:22,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-22 13:06:22,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-11-22 13:06:22,948 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2020-11-22 13:06:22,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:22,948 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-11-22 13:06:22,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:06:22,949 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-11-22 13:06:22,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 13:06:22,949 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:22,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:23,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:06:23,159 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:23,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:23,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1244066674, now seen corresponding path program 1 times [2020-11-22 13:06:23,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:23,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357544919] [2020-11-22 13:06:23,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/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 [2020-11-22 13:06:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:23,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-22 13:06:23,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:23,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:23,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:28,138 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-11-22 13:06:28,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:28,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357544919] [2020-11-22 13:06:28,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:28,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-22 13:06:28,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466450642] [2020-11-22 13:06:28,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 13:06:28,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:28,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 13:06:28,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:06:28,151 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 10 states. [2020-11-22 13:06:28,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:28,739 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-11-22 13:06:28,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 13:06:28,740 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-11-22 13:06:28,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:28,740 INFO L225 Difference]: With dead ends: 12 [2020-11-22 13:06:28,740 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:06:28,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-22 13:06:28,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:06:28,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:06:28,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:06:28,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:06:28,742 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-11-22 13:06:28,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:28,742 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:06:28,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 13:06:28,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:06:28,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:06:28,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:06:28,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:06:29,193 INFO L274 CegarLoopResult]: For program point L93(lines 93 96) no Hoare annotation was computed. [2020-11-22 13:06:29,194 INFO L274 CegarLoopResult]: For program point L60(lines 60 65) no Hoare annotation was computed. [2020-11-22 13:06:29,194 INFO L274 CegarLoopResult]: For program point L118(lines 118 119) no Hoare annotation was computed. [2020-11-22 13:06:29,194 INFO L274 CegarLoopResult]: For program point L85(lines 85 97) no Hoare annotation was computed. [2020-11-22 13:06:29,194 INFO L270 CegarLoopResult]: At program point L143(lines 107 144) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)))) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-22 13:06:29,194 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-22 13:06:29,194 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-22 13:06:29,195 INFO L274 CegarLoopResult]: For program point L160(lines 160 163) no Hoare annotation was computed. [2020-11-22 13:06:29,195 INFO L274 CegarLoopResult]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2020-11-22 13:06:29,195 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:06:29,195 INFO L270 CegarLoopResult]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2020-11-22 13:06:29,195 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-22 13:06:29,195 INFO L274 CegarLoopResult]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2020-11-22 13:06:29,195 INFO L270 CegarLoopResult]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-22 13:06:29,195 INFO L274 CegarLoopResult]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2020-11-22 13:06:29,195 INFO L274 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2020-11-22 13:06:29,195 INFO L274 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-11-22 13:06:29,196 INFO L274 CegarLoopResult]: For program point L87(lines 87 91) no Hoare annotation was computed. [2020-11-22 13:06:29,196 INFO L274 CegarLoopResult]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2020-11-22 13:06:29,196 INFO L270 CegarLoopResult]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2020-11-22 13:06:29,196 INFO L274 CegarLoopResult]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2020-11-22 13:06:29,196 INFO L270 CegarLoopResult]: At program point L96(lines 22 98) the Hoare annotation is: false [2020-11-22 13:06:29,196 INFO L274 CegarLoopResult]: For program point L39(lines 39 47) no Hoare annotation was computed. [2020-11-22 13:06:29,196 INFO L274 CegarLoopResult]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2020-11-22 13:06:29,196 INFO L274 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2020-11-22 13:06:29,197 INFO L270 CegarLoopResult]: At program point L147(line 147) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start___ieee754_log10f_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-11-22 13:06:29,197 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-22 13:06:29,197 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 13:06:29,197 INFO L277 CegarLoopResult]: At program point L165(lines 149 166) the Hoare annotation is: true [2020-11-22 13:06:29,197 INFO L274 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-11-22 13:06:29,197 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:06:29,197 INFO L274 CegarLoopResult]: For program point L124(lines 124 132) no Hoare annotation was computed. [2020-11-22 13:06:29,197 INFO L274 CegarLoopResult]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2020-11-22 13:06:29,197 INFO L274 CegarLoopResult]: For program point L58(lines 58 74) no Hoare annotation was computed. [2020-11-22 13:06:29,198 INFO L274 CegarLoopResult]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2020-11-22 13:06:29,198 INFO L270 CegarLoopResult]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2020-11-22 13:06:29,198 INFO L274 CegarLoopResult]: For program point L59(lines 59 66) no Hoare annotation was computed. [2020-11-22 13:06:29,198 INFO L274 CegarLoopResult]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2020-11-22 13:06:29,198 INFO L270 CegarLoopResult]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2020-11-22 13:06:29,198 INFO L274 CegarLoopResult]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2020-11-22 13:06:29,198 INFO L274 CegarLoopResult]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2020-11-22 13:06:29,198 INFO L270 CegarLoopResult]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2020-11-22 13:06:29,198 INFO L274 CegarLoopResult]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2020-11-22 13:06:29,198 INFO L274 CegarLoopResult]: For program point L68(lines 68 73) no Hoare annotation was computed. [2020-11-22 13:06:29,199 INFO L274 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2020-11-22 13:06:29,208 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,209 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,209 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,210 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,211 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,211 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,211 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,213 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,214 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,218 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,218 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,218 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,218 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,219 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,219 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,219 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,219 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,220 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,220 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,220 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,220 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,221 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,221 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,222 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,223 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,223 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,223 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,223 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,224 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,224 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,224 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,224 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,224 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,225 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,225 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,226 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,226 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,226 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,226 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,227 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,227 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,227 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,227 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,228 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,228 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,228 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,228 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,229 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,229 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,229 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,238 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,239 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,239 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,243 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,243 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,243 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,244 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,244 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,245 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:06:29 BoogieIcfgContainer [2020-11-22 13:06:29,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:06:29,256 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:06:29,256 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:06:29,256 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:06:29,256 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:20" (3/4) ... [2020-11-22 13:06:29,259 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:06:29,271 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-11-22 13:06:29,275 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-22 13:06:29,275 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:06:29,276 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:06:29,302 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-22 13:06:29,304 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && 1bv32 == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-11-22 13:06:29,348 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9ccc66c1-bf3f-46b7-9cce-3b585a331f16/bin/utaipan/witness.graphml [2020-11-22 13:06:29,348 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:06:29,350 INFO L168 Benchmark]: Toolchain (without parser) took 25852.19 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 27.4 MB in the beginning and 39.2 MB in the end (delta: -11.8 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:29,350 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 32.4 MB in the end (delta: 46.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:29,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.15 ms. Allocated memory is still 50.3 MB. Free memory was 27.1 MB in the beginning and 26.8 MB in the end (delta: 296.4 kB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:29,351 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.20 ms. Allocated memory is still 50.3 MB. Free memory was 26.8 MB in the beginning and 24.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:29,351 INFO L168 Benchmark]: Boogie Preprocessor took 50.75 ms. Allocated memory is still 50.3 MB. Free memory was 24.5 MB in the beginning and 22.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:29,352 INFO L168 Benchmark]: RCFGBuilder took 16448.65 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 22.3 MB in the beginning and 34.8 MB in the end (delta: -12.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:29,352 INFO L168 Benchmark]: TraceAbstraction took 8875.15 ms. Allocated memory is still 65.0 MB. Free memory was 34.5 MB in the beginning and 45.1 MB in the end (delta: -10.6 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:29,353 INFO L168 Benchmark]: Witness Printer took 92.84 ms. Allocated memory is still 65.0 MB. Free memory was 45.1 MB in the beginning and 39.2 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:29,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 32.4 MB in the end (delta: 46.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 331.15 ms. Allocated memory is still 50.3 MB. Free memory was 27.1 MB in the beginning and 26.8 MB in the end (delta: 296.4 kB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.20 ms. Allocated memory is still 50.3 MB. Free memory was 26.8 MB in the beginning and 24.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.75 ms. Allocated memory is still 50.3 MB. Free memory was 24.5 MB in the beginning and 22.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 16448.65 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 22.3 MB in the beginning and 34.8 MB in the end (delta: -12.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8875.15 ms. Allocated memory is still 65.0 MB. Free memory was 34.5 MB in the beginning and 45.1 MB in the end (delta: -10.6 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * Witness Printer took 92.84 ms. Allocated memory is still 65.0 MB. Free memory was 45.1 MB in the beginning and 39.2 MB in the end (delta: 5.9 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 - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 107]: Loop Invariant [2020-11-22 13:06:29,369 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,369 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,369 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,369 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,370 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,370 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,370 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,370 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,370 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,370 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,371 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,372 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,372 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,372 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,373 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,373 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,373 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,373 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,373 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,373 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,374 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,374 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,374 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,374 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,374 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant [2020-11-22 13:06:29,376 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,376 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,377 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,377 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant [2020-11-22 13:06:29,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,380 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,380 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,380 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,380 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,381 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,382 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,382 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,382 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,382 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,382 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:29,383 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,383 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:29,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,383 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:29,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && 1bv32 == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 29 SDslu, 20 SDs, 0 SdLazy, 23 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 142 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 5 QuantifiedInterpolants, 4134 SizeOfPredicates, 17 NumberOfNonLiveVariables, 177 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...