./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.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_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 258242508bb2f0d624fb3f4a66fd347aa6adb575 ............................................................................................................................................................................................................................................................................................................. 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_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 258242508bb2f0d624fb3f4a66fd347aa6adb575 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:10:52,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:10:52,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:10:52,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:10:52,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:10:52,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:10:52,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:10:52,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:10:52,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:10:52,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:10:52,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:10:52,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:10:52,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:10:52,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:10:52,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:10:52,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:10:52,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:10:52,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:10:52,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:10:52,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:10:52,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:10:52,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:10:52,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:10:52,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:10:52,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:10:52,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:10:52,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:10:52,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:10:52,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:10:52,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:10:52,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:10:52,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:10:52,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:10:52,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:10:52,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:10:52,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:10:52,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:10:52,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:10:52,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:10:52,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:10:52,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:10:52,576 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:10:52,625 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:10:52,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:10:52,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:10:52,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:10:52,629 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:10:52,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:10:52,630 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:10:52,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:10:52,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:10:52,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:10:52,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:10:52,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:10:52,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:10:52,633 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:10:52,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:10:52,634 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:10:52,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:10:52,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:10:52,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:10:52,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:10:52,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:10:52,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:10:52,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:10:52,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:10:52,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:10:52,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:10:52,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:10:52,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:10:52,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:10:52,638 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 258242508bb2f0d624fb3f4a66fd347aa6adb575 [2020-11-30 00:10:53,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:10:53,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:10:53,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:10:53,058 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:10:53,060 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:10:53,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2020-11-30 00:10:53,147 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/data/3c08bb102/450033ece6354f648c4a3f250632c5f1/FLAG757a4ab37 [2020-11-30 00:10:53,722 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:10:53,723 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2020-11-30 00:10:53,732 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/data/3c08bb102/450033ece6354f648c4a3f250632c5f1/FLAG757a4ab37 [2020-11-30 00:10:54,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/data/3c08bb102/450033ece6354f648c4a3f250632c5f1 [2020-11-30 00:10:54,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:10:54,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:10:54,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:10:54,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:10:54,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:10:54,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:10:54" (1/1) ... [2020-11-30 00:10:54,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea6ce84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:54, skipping insertion in model container [2020-11-30 00:10:54,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:10:54" (1/1) ... [2020-11-30 00:10:54,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:10:54,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:10:54,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:10:54,447 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:10:54,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:10:54,523 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:10:54,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:54 WrapperNode [2020-11-30 00:10:54,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:10:54,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:10:54,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:10:54,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:10:54,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:54" (1/1) ... [2020-11-30 00:10:54,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:54" (1/1) ... [2020-11-30 00:10:54,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:10:54,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:10:54,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:10:54,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:10:54,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:54" (1/1) ... [2020-11-30 00:10:54,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:54" (1/1) ... [2020-11-30 00:10:54,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:54" (1/1) ... [2020-11-30 00:10:54,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:54" (1/1) ... [2020-11-30 00:10:54,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:54" (1/1) ... [2020-11-30 00:10:54,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:54" (1/1) ... [2020-11-30 00:10:54,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:54" (1/1) ... [2020-11-30 00:10:54,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:10:54,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:10:54,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:10:54,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:10:54,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:10:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:10:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:10:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 00:10:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:10:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 00:10:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:10:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:10:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:10:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:10:55,262 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:10:55,263 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 00:10:55,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:55 BoogieIcfgContainer [2020-11-30 00:10:55,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:10:55,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:10:55,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:10:55,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:10:55,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:10:54" (1/3) ... [2020-11-30 00:10:55,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6753b5cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:10:55, skipping insertion in model container [2020-11-30 00:10:55,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:10:54" (2/3) ... [2020-11-30 00:10:55,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6753b5cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:10:55, skipping insertion in model container [2020-11-30 00:10:55,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:55" (3/3) ... [2020-11-30 00:10:55,276 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b.c [2020-11-30 00:10:55,290 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:10:55,295 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:10:55,310 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:10:55,346 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:10:55,347 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:10:55,347 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:10:55,347 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:10:55,347 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:10:55,348 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:10:55,348 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:10:55,348 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:10:55,367 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-11-30 00:10:55,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:10:55,375 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:10:55,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:10:55,376 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:10:55,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:55,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2020-11-30 00:10:55,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:55,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715568806] [2020-11-30 00:10:55,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:10:55,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:10:55,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715568806] [2020-11-30 00:10:55,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:10:55,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:10:55,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060960084] [2020-11-30 00:10:55,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:10:55,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:10:55,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:10:55,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:10:55,658 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-11-30 00:10:55,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:10:55,683 INFO L93 Difference]: Finished difference Result 57 states and 91 transitions. [2020-11-30 00:10:55,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:10:55,684 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 00:10:55,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:10:55,708 INFO L225 Difference]: With dead ends: 57 [2020-11-30 00:10:55,708 INFO L226 Difference]: Without dead ends: 26 [2020-11-30 00:10:55,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:10:55,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-30 00:10:55,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-11-30 00:10:55,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-30 00:10:55,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2020-11-30 00:10:55,810 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2020-11-30 00:10:55,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:10:55,811 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2020-11-30 00:10:55,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:10:55,811 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2020-11-30 00:10:55,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:10:55,812 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:10:55,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:10:55,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:10:55,816 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:10:55,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:10:55,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2020-11-30 00:10:55,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:10:55,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625806670] [2020-11-30 00:10:55,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:10:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:55,945 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:10:56,030 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:10:56,080 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:10:56,086 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:10:56,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:10:56,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:10:56 BoogieIcfgContainer [2020-11-30 00:10:56,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:10:56,145 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:10:56,145 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:10:56,145 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:10:56,146 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:10:55" (3/4) ... [2020-11-30 00:10:56,150 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:10:56,151 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:10:56,153 INFO L168 Benchmark]: Toolchain (without parser) took 2090.17 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 97.6 MB in the beginning and 114.1 MB in the end (delta: -16.6 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:56,154 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 121.6 MB. Free memory was 80.5 MB in the beginning and 80.5 MB in the end (delta: 61.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:10:56,155 INFO L168 Benchmark]: CACSL2BoogieTranslator took 461.62 ms. Allocated memory is still 121.6 MB. Free memory was 97.2 MB in the beginning and 94.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:56,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.96 ms. Allocated memory is still 121.6 MB. Free memory was 94.4 MB in the beginning and 92.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:56,158 INFO L168 Benchmark]: Boogie Preprocessor took 52.13 ms. Allocated memory is still 121.6 MB. Free memory was 92.6 MB in the beginning and 90.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:56,159 INFO L168 Benchmark]: RCFGBuilder took 596.29 ms. Allocated memory is still 121.6 MB. Free memory was 90.5 MB in the beginning and 69.7 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:10:56,160 INFO L168 Benchmark]: TraceAbstraction took 877.44 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 69.3 MB in the beginning and 114.1 MB in the end (delta: -44.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:10:56,160 INFO L168 Benchmark]: Witness Printer took 5.96 ms. Allocated memory is still 146.8 MB. Free memory is still 114.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:10:56,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 121.6 MB. Free memory was 80.5 MB in the beginning and 80.5 MB in the end (delta: 61.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 461.62 ms. Allocated memory is still 121.6 MB. Free memory was 97.2 MB in the beginning and 94.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.96 ms. Allocated memory is still 121.6 MB. Free memory was 94.4 MB in the beginning and 92.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.13 ms. Allocated memory is still 121.6 MB. Free memory was 92.6 MB in the beginning and 90.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 596.29 ms. Allocated memory is still 121.6 MB. Free memory was 90.5 MB in the beginning and 69.7 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 877.44 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 69.3 MB in the beginning and 114.1 MB in the end (delta: -44.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.96 ms. Allocated memory is still 146.8 MB. Free memory is still 114.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 139, overapproximation of bitwiseOr at line 61, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L148] double x = -1.0 / 0.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L149] double res = __ieee754_log(x); [L139] return x != x; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L152] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_0920b.c", 3, "reach_error") VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:10:58,976 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-11-30 00:10:59,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:10:59,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:10:59,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:10:59,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:10:59,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:10:59,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:10:59,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:10:59,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:10:59,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:10:59,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:10:59,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:10:59,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:10:59,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-30 00:10:59,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:10:59,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:10:59,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:10:59,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:10:59,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:10:59,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:10:59,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:10:59,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:10:59,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:10:59,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:10:59,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:10:59,137 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:10:59,181 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:10:59,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:10:59,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:10:59,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:10:59,183 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:10:59,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:10:59,184 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:10:59,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:10:59,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:10:59,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:10:59,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:10:59,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:10:59,185 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:10:59,185 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:10:59,186 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:10:59,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:10:59,186 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:10:59,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:10:59,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:10:59,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:10:59,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:10:59,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:10:59,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:10:59,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:10:59,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:10:59,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:10:59,188 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:10:59,189 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:10:59,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:10:59,189 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:10:59,203 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:10:59,204 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_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 258242508bb2f0d624fb3f4a66fd347aa6adb575 [2020-11-30 00:10:59,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:10:59,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:10:59,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:10:59,617 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:10:59,618 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:10:59,619 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2020-11-30 00:10:59,696 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/data/3e5750d80/6924f2d9c7b0456cab0296fb7c749d48/FLAG0e61b903a [2020-11-30 00:11:00,380 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:11:00,381 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2020-11-30 00:11:00,395 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/data/3e5750d80/6924f2d9c7b0456cab0296fb7c749d48/FLAG0e61b903a [2020-11-30 00:11:00,690 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/data/3e5750d80/6924f2d9c7b0456cab0296fb7c749d48 [2020-11-30 00:11:00,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:11:00,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:11:00,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:11:00,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:11:00,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:11:00,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:11:00" (1/1) ... [2020-11-30 00:11:00,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc81b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:00, skipping insertion in model container [2020-11-30 00:11:00,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:11:00" (1/1) ... [2020-11-30 00:11:00,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:11:00,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:11:01,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:11:01,046 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:11:01,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:11:01,188 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:11:01,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:01 WrapperNode [2020-11-30 00:11:01,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:11:01,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:11:01,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:11:01,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:11:01,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:01" (1/1) ... [2020-11-30 00:11:01,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:01" (1/1) ... [2020-11-30 00:11:01,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:11:01,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:11:01,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:11:01,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:11:01,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:01" (1/1) ... [2020-11-30 00:11:01,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:01" (1/1) ... [2020-11-30 00:11:01,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:01" (1/1) ... [2020-11-30 00:11:01,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:01" (1/1) ... [2020-11-30 00:11:01,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:01" (1/1) ... [2020-11-30 00:11:01,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:01" (1/1) ... [2020-11-30 00:11:01,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:01" (1/1) ... [2020-11-30 00:11:01,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:11:01,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:11:01,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:11:01,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:11:01,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:11:01,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-30 00:11:01,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-30 00:11:01,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:11:01,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:11:01,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 00:11:01,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:11:01,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:11:01,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 00:11:01,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:11:27,288 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:11:27,288 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-30 00:11:27,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:11:27 BoogieIcfgContainer [2020-11-30 00:11:27,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:11:27,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:11:27,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:11:27,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:11:27,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:11:00" (1/3) ... [2020-11-30 00:11:27,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9857dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:11:27, skipping insertion in model container [2020-11-30 00:11:27,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:11:01" (2/3) ... [2020-11-30 00:11:27,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9857dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:11:27, skipping insertion in model container [2020-11-30 00:11:27,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:11:27" (3/3) ... [2020-11-30 00:11:27,301 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b.c [2020-11-30 00:11:27,314 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:11:27,320 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:11:27,334 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:11:27,363 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:11:27,364 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:11:27,364 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:11:27,364 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:11:27,364 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:11:27,365 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:11:27,365 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:11:27,365 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:11:27,383 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-11-30 00:11:27,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 00:11:27,390 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:11:27,391 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:11:27,392 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:11:27,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:27,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2020-11-30 00:11:27,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:11:27,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084524840] [2020-11-30 00:11:27,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 00:11:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:11:28,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 00:11:28,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:11:28,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:11:28,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:11:28,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:11:28,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084524840] [2020-11-30 00:11:28,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:11:28,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 00:11:28,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883014030] [2020-11-30 00:11:28,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:11:28,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:11:28,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:11:28,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:11:28,736 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-11-30 00:11:28,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:11:28,758 INFO L93 Difference]: Finished difference Result 57 states and 91 transitions. [2020-11-30 00:11:28,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:11:28,760 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-30 00:11:28,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:11:28,771 INFO L225 Difference]: With dead ends: 57 [2020-11-30 00:11:28,771 INFO L226 Difference]: Without dead ends: 26 [2020-11-30 00:11:28,774 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:11:28,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-30 00:11:28,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-11-30 00:11:28,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-30 00:11:28,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2020-11-30 00:11:28,813 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2020-11-30 00:11:28,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:11:28,813 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2020-11-30 00:11:28,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:11:28,814 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2020-11-30 00:11:28,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:11:28,815 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:11:28,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:11:29,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:11:29,018 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:11:29,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:29,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2020-11-30 00:11:29,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:11:29,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902343596] [2020-11-30 00:11:29,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 00:11:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:11:30,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:11:30,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:11:30,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:11:30,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:11:30,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:11:30,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902343596] [2020-11-30 00:11:30,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:11:30,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-30 00:11:30,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886272052] [2020-11-30 00:11:30,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:11:30,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:11:30,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:11:30,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:11:30,715 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand 6 states. [2020-11-30 00:11:32,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:11:32,567 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2020-11-30 00:11:32,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:11:32,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-30 00:11:32,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:11:32,603 INFO L225 Difference]: With dead ends: 31 [2020-11-30 00:11:32,604 INFO L226 Difference]: Without dead ends: 13 [2020-11-30 00:11:32,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:11:32,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-30 00:11:32,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-30 00:11:32,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 00:11:32,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2020-11-30 00:11:32,610 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2020-11-30 00:11:32,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:11:32,610 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2020-11-30 00:11:32,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:11:32,611 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2020-11-30 00:11:32,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:11:32,611 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:11:32,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:11:32,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 00:11:32,823 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:11:32,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:11:32,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1813045648, now seen corresponding path program 1 times [2020-11-30 00:11:32,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:11:32,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049315755] [2020-11-30 00:11:32,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 00:11:33,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:11:33,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-30 00:11:33,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:11:34,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:11:34,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:12:05,417 WARN L193 SmtUtils]: Spent 4.27 s on a formula simplification that was a NOOP. DAG size: 14 [2020-11-30 00:12:05,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:12:05,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049315755] [2020-11-30 00:12:05,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:12:05,449 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-30 00:12:05,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113884193] [2020-11-30 00:12:05,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 00:12:05,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:12:05,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 00:12:05,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=64, Unknown=4, NotChecked=0, Total=90 [2020-11-30 00:12:05,451 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand 10 states. [2020-11-30 00:12:10,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:12:10,238 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-11-30 00:12:10,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 00:12:10,238 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-11-30 00:12:10,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:12:10,239 INFO L225 Difference]: With dead ends: 13 [2020-11-30 00:12:10,239 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:12:10,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 34.3s TimeCoverageRelationStatistics Valid=49, Invalid=103, Unknown=4, NotChecked=0, Total=156 [2020-11-30 00:12:10,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:12:10,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:12:10,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:12:10,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:12:10,241 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-30 00:12:10,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:12:10,241 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:12:10,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 00:12:10,241 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:12:10,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:12:10,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 00:12:10,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:12:10,679 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2020-11-30 00:12:10,818 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2020-11-30 00:12:10,894 INFO L274 CegarLoopResult]: For program point L60(lines 60 72) no Hoare annotation was computed. [2020-11-30 00:12:10,894 INFO L274 CegarLoopResult]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2020-11-30 00:12:10,894 INFO L274 CegarLoopResult]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2020-11-30 00:12:10,895 INFO L270 CegarLoopResult]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (= ~zero~0 (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) [2020-11-30 00:12:10,895 INFO L274 CegarLoopResult]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2020-11-30 00:12:10,895 INFO L270 CegarLoopResult]: At program point L139(line 139) the Hoare annotation is: (and (= ~zero~0 (_ +zero 11 53)) (exists ((currentRoundingMode RoundingMode) (v_skolemized_v_prenex_2_3 (_ BitVec 64))) (and (= ULTIMATE.start___ieee754_log_~hx~1 ((_ extract 63 32) v_skolemized_v_prenex_2_3)) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_2_3) ((_ extract 62 52) v_skolemized_v_prenex_2_3) ((_ extract 51 0) v_skolemized_v_prenex_2_3)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))))) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) [2020-11-30 00:12:10,895 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 00:12:10,895 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 00:12:10,896 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:12:10,896 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:12:10,898 INFO L274 CegarLoopResult]: For program point L61(lines 61 62) no Hoare annotation was computed. [2020-11-30 00:12:10,898 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:12:10,898 INFO L274 CegarLoopResult]: For program point L152(lines 152 155) no Hoare annotation was computed. [2020-11-30 00:12:10,898 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:12:10,898 INFO L274 CegarLoopResult]: For program point L86(lines 86 102) no Hoare annotation was computed. [2020-11-30 00:12:10,899 INFO L274 CegarLoopResult]: For program point L115(lines 115 119) no Hoare annotation was computed. [2020-11-30 00:12:10,899 INFO L274 CegarLoopResult]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2020-11-30 00:12:10,899 INFO L270 CegarLoopResult]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2020-11-30 00:12:10,899 INFO L274 CegarLoopResult]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2020-11-30 00:12:10,899 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:12:10,899 INFO L277 CegarLoopResult]: At program point L157(lines 141 158) the Hoare annotation is: true [2020-11-30 00:12:10,900 INFO L270 CegarLoopResult]: At program point L124(lines 47 126) the Hoare annotation is: (and (= ~zero~0 (_ +zero 11 53)) (exists ((currentRoundingMode RoundingMode) (v_skolemized_v_prenex_2_3 (_ BitVec 64))) (and (= ULTIMATE.start___ieee754_log_~hx~1 ((_ extract 63 32) v_skolemized_v_prenex_2_3)) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_2_3) ((_ extract 62 52) v_skolemized_v_prenex_2_3) ((_ extract 51 0) v_skolemized_v_prenex_2_3)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53))))) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|) (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) [2020-11-30 00:12:10,900 INFO L274 CegarLoopResult]: For program point L87(lines 87 94) no Hoare annotation was computed. [2020-11-30 00:12:10,900 INFO L274 CegarLoopResult]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2020-11-30 00:12:10,900 INFO L270 CegarLoopResult]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2020-11-30 00:12:10,900 INFO L274 CegarLoopResult]: For program point L96(lines 96 101) no Hoare annotation was computed. [2020-11-30 00:12:10,900 INFO L274 CegarLoopResult]: For program point L63(lines 63 64) no Hoare annotation was computed. [2020-11-30 00:12:10,900 INFO L274 CegarLoopResult]: For program point L121(lines 121 124) no Hoare annotation was computed. [2020-11-30 00:12:10,900 INFO L274 CegarLoopResult]: For program point L88(lines 88 93) no Hoare annotation was computed. [2020-11-30 00:12:10,901 INFO L274 CegarLoopResult]: For program point L113(lines 113 125) no Hoare annotation was computed. [2020-11-30 00:12:10,914 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,915 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,915 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,916 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,919 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:10,919 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:10,923 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,923 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,923 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,927 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,927 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,928 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,934 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,934 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,934 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,934 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,935 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:10,935 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:10,935 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,936 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,936 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,936 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,937 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,937 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,937 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,938 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,940 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,941 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,941 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,941 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:10,941 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:10,942 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,942 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,942 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,942 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,943 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,943 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,943 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,945 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,946 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,951 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,952 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,953 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,953 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,953 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:10,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:10,954 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:10,954 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,954 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,955 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,955 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,955 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,955 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,956 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,956 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,957 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,969 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,975 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,975 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,975 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,976 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:10,976 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,976 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,977 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:10,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:12:10 BoogieIcfgContainer [2020-11-30 00:12:10,982 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:12:10,983 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:12:10,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:12:10,984 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:12:10,990 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:11:27" (3/4) ... [2020-11-30 00:12:10,994 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:12:11,015 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-30 00:12:11,015 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 00:12:11,016 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:12:11,017 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:12:11,052 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((zero == ~Pluszero~LONGDOUBLE() && (\exists currentRoundingMode : FloatRoundingMode, v_skolemized_v_prenex_2_3 : bv64 :: hx == v_skolemized_v_prenex_2_3[63:32] && ~fp~LONGDOUBLE(v_skolemized_v_prenex_2_3[63:63], v_skolemized_v_prenex_2_3[62:52], v_skolemized_v_prenex_2_3[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) == \result) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) [2020-11-30 00:12:11,053 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((zero == ~Pluszero~LONGDOUBLE() && (\exists currentRoundingMode : FloatRoundingMode, v_skolemized_v_prenex_2_3 : bv64 :: hx == v_skolemized_v_prenex_2_3[63:32] && ~fp~LONGDOUBLE(v_skolemized_v_prenex_2_3[63:63], v_skolemized_v_prenex_2_3[62:52], v_skolemized_v_prenex_2_3[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) == \result) && 1bv32 == \result) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) [2020-11-30 00:12:11,134 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_abf6f799-5d86-45ba-888b-a05625a19e70/bin/uautomizer/witness.graphml [2020-11-30 00:12:11,134 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:12:11,136 INFO L168 Benchmark]: Toolchain (without parser) took 70430.84 ms. Allocated memory was 52.4 MB in the beginning and 73.4 MB in the end (delta: 21.0 MB). Free memory was 29.9 MB in the beginning and 50.6 MB in the end (delta: -20.7 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:12:11,138 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 52.4 MB. Free memory was 35.3 MB in the beginning and 35.2 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:12:11,138 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.64 ms. Allocated memory was 52.4 MB in the beginning and 73.4 MB in the end (delta: 21.0 MB). Free memory was 29.7 MB in the beginning and 54.2 MB in the end (delta: -24.5 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:12:11,139 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.46 ms. Allocated memory is still 73.4 MB. Free memory was 54.2 MB in the beginning and 51.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:12:11,140 INFO L168 Benchmark]: Boogie Preprocessor took 47.74 ms. Allocated memory is still 73.4 MB. Free memory was 51.9 MB in the beginning and 50.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:12:11,140 INFO L168 Benchmark]: RCFGBuilder took 25989.10 ms. Allocated memory is still 73.4 MB. Free memory was 50.0 MB in the beginning and 43.9 MB in the end (delta: 6.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:12:11,141 INFO L168 Benchmark]: TraceAbstraction took 43690.05 ms. Allocated memory is still 73.4 MB. Free memory was 43.3 MB in the beginning and 30.1 MB in the end (delta: 13.2 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:12:11,142 INFO L168 Benchmark]: Witness Printer took 151.59 ms. Allocated memory is still 73.4 MB. Free memory was 30.1 MB in the beginning and 50.6 MB in the end (delta: -20.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:12:11,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 52.4 MB. Free memory was 35.3 MB in the beginning and 35.2 MB in the end (delta: 37.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 479.64 ms. Allocated memory was 52.4 MB in the beginning and 73.4 MB in the end (delta: 21.0 MB). Free memory was 29.7 MB in the beginning and 54.2 MB in the end (delta: -24.5 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.46 ms. Allocated memory is still 73.4 MB. Free memory was 54.2 MB in the beginning and 51.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.74 ms. Allocated memory is still 73.4 MB. Free memory was 51.9 MB in the beginning and 50.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 25989.10 ms. Allocated memory is still 73.4 MB. Free memory was 50.0 MB in the beginning and 43.9 MB in the end (delta: 6.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 43690.05 ms. Allocated memory is still 73.4 MB. Free memory was 43.3 MB in the beginning and 30.1 MB in the end (delta: 13.2 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Witness Printer took 151.59 ms. Allocated memory is still 73.4 MB. Free memory was 30.1 MB in the beginning and 50.6 MB in the end (delta: -20.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] - 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 * 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 * 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: 139]: Loop Invariant [2020-11-30 00:12:11,170 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,170 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,170 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,171 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,171 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:11,171 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:11,171 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,172 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,172 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,172 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,172 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,172 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,173 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:11,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:11,174 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:11,175 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,177 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,177 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,177 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:11,178 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:11,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,178 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:11,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:11,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((zero == ~Pluszero~LONGDOUBLE() && (\exists currentRoundingMode : FloatRoundingMode, v_skolemized_v_prenex_2_3 : bv64 :: hx == v_skolemized_v_prenex_2_3[63:32] && ~fp~LONGDOUBLE(v_skolemized_v_prenex_2_3[63:63], v_skolemized_v_prenex_2_3[62:52], v_skolemized_v_prenex_2_3[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) == \result) && 1bv32 == \result) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant [2020-11-30 00:12:11,183 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:11,184 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:11,185 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,185 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,190 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,190 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,190 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,191 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,191 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:11,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:11,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:11,192 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,192 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,193 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,193 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_2_3,QUANTIFIED] [2020-11-30 00:12:11,193 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:11,193 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:12:11,194 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,194 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,194 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,194 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,194 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,195 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,195 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:11,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:11,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((zero == ~Pluszero~LONGDOUBLE() && (\exists currentRoundingMode : FloatRoundingMode, v_skolemized_v_prenex_2_3 : bv64 :: hx == v_skolemized_v_prenex_2_3[63:32] && ~fp~LONGDOUBLE(v_skolemized_v_prenex_2_3[63:63], v_skolemized_v_prenex_2_3[62:52], v_skolemized_v_prenex_2_3[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) == \result) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant [2020-11-30 00:12:11,198 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:11,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:11,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:11,200 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:12:11,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:11,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:12:11,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (zero == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 43.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 28 SDslu, 24 SDs, 0 SdLazy, 24 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 34.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 138 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 32.0s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 10 QuantifiedInterpolants, 5336 SizeOfPredicates, 19 NumberOfNonLiveVariables, 171 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...