./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/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 cff56ef2177d4a827b720aa6155a34e4f93cd99b ........................................................................................................................................................................................................................................................................................ 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_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/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 cff56ef2177d4a827b720aa6155a34e4f93cd99b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:58:42,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:58:42,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:58:42,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:58:42,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:58:42,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:58:42,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:58:42,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:58:42,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:58:42,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:58:42,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:58:42,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:58:42,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:58:42,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:58:42,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:58:42,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:58:42,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:58:42,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:58:42,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:58:42,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:58:42,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:58:42,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:58:42,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:58:42,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:58:42,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:58:42,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:58:42,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:58:42,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:58:42,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:58:42,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:58:42,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:58:42,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:58:42,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:58:42,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:58:42,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:58:42,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:58:42,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:58:42,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:58:42,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:58:42,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:58:42,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:58:42,523 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:58:42,555 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:58:42,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:58:42,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:58:42,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:58:42,559 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:58:42,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:58:42,560 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:58:42,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:58:42,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:58:42,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:58:42,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:58:42,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:58:42,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:58:42,562 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:58:42,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:58:42,563 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:58:42,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:58:42,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:58:42,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:58:42,565 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:58:42,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:58:42,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:58:42,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:58:42,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:58:42,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:58:42,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:58:42,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:58:42,567 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:58:42,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:58:42,568 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_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cff56ef2177d4a827b720aa6155a34e4f93cd99b [2020-12-01 15:58:42,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:58:42,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:58:42,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:58:42,929 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:58:42,932 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:58:42,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2020-12-01 15:58:43,051 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/data/194f732f4/95993e39de93452c8522bcca1bdc21f7/FLAG6032a36b6 [2020-12-01 15:58:43,736 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:58:43,737 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2020-12-01 15:58:43,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/data/194f732f4/95993e39de93452c8522bcca1bdc21f7/FLAG6032a36b6 [2020-12-01 15:58:44,098 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/data/194f732f4/95993e39de93452c8522bcca1bdc21f7 [2020-12-01 15:58:44,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:58:44,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:58:44,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:58:44,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:58:44,127 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:58:44,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:58:44" (1/1) ... [2020-12-01 15:58:44,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cd9fedf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:44, skipping insertion in model container [2020-12-01 15:58:44,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:58:44" (1/1) ... [2020-12-01 15:58:44,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:58:44,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:58:44,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:58:44,388 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:58:44,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:58:44,455 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:58:44,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:44 WrapperNode [2020-12-01 15:58:44,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:58:44,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:58:44,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:58:44,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:58:44,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:44" (1/1) ... [2020-12-01 15:58:44,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:44" (1/1) ... [2020-12-01 15:58:44,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:58:44,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:58:44,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:58:44,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:58:44,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:44" (1/1) ... [2020-12-01 15:58:44,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:44" (1/1) ... [2020-12-01 15:58:44,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:44" (1/1) ... [2020-12-01 15:58:44,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:44" (1/1) ... [2020-12-01 15:58:44,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:44" (1/1) ... [2020-12-01 15:58:44,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:44" (1/1) ... [2020-12-01 15:58:44,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:44" (1/1) ... [2020-12-01 15:58:44,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:58:44,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:58:44,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:58:44,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:58:44,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/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 [2020-12-01 15:58:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:58:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:58:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 15:58:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:58:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 15:58:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:58:44,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:58:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:58:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:58:45,063 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:58:45,063 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-01 15:58:45,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:58:45 BoogieIcfgContainer [2020-12-01 15:58:45,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:58:45,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:58:45,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:58:45,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:58:45,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:58:44" (1/3) ... [2020-12-01 15:58:45,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acd8e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:58:45, skipping insertion in model container [2020-12-01 15:58:45,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:44" (2/3) ... [2020-12-01 15:58:45,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1acd8e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:58:45, skipping insertion in model container [2020-12-01 15:58:45,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:58:45" (3/3) ... [2020-12-01 15:58:45,090 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2020-12-01 15:58:45,113 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:58:45,133 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:58:45,159 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:58:45,193 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:58:45,198 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:58:45,198 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:58:45,198 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:58:45,199 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:58:45,199 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:58:45,199 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:58:45,199 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:58:45,217 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-12-01 15:58:45,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:58:45,224 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:58:45,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:58:45,225 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:58:45,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:45,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2020-12-01 15:58:45,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:58:45,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012471514] [2020-12-01 15:58:45,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:58:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:58:45,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:58:45,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012471514] [2020-12-01 15:58:45,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:58:45,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:58:45,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532143245] [2020-12-01 15:58:45,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:58:45,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:58:45,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:58:45,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:58:45,433 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-12-01 15:58:45,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:58:45,456 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-12-01 15:58:45,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:58:45,458 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-01 15:58:45,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:58:45,470 INFO L225 Difference]: With dead ends: 49 [2020-12-01 15:58:45,471 INFO L226 Difference]: Without dead ends: 22 [2020-12-01 15:58:45,474 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 [2020-12-01 15:58:45,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-12-01 15:58:45,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-12-01 15:58:45,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-01 15:58:45,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-12-01 15:58:45,518 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2020-12-01 15:58:45,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:58:45,519 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-12-01 15:58:45,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:58:45,519 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-12-01 15:58:45,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:58:45,520 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:58:45,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:58:45,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:58:45,521 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:58:45,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:45,522 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2020-12-01 15:58:45,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:58:45,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896678572] [2020-12-01 15:58:45,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:58:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:45,609 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:45,687 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:45,747 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:58:45,747 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:58:45,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:58:45,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:58:45 BoogieIcfgContainer [2020-12-01 15:58:45,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:58:45,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:58:45,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:58:45,792 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:58:45,792 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:58:45" (3/4) ... [2020-12-01 15:58:45,797 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:58:45,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:58:45,800 INFO L168 Benchmark]: Toolchain (without parser) took 1695.52 ms. Allocated memory was 79.7 MB in the beginning and 107.0 MB in the end (delta: 27.3 MB). Free memory was 48.4 MB in the beginning and 41.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:45,801 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 79.7 MB. Free memory was 39.2 MB in the beginning and 39.2 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:58:45,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.00 ms. Allocated memory was 79.7 MB in the beginning and 107.0 MB in the end (delta: 27.3 MB). Free memory was 48.1 MB in the beginning and 84.4 MB in the end (delta: -36.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:45,803 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.05 ms. Allocated memory is still 107.0 MB. Free memory was 84.4 MB in the beginning and 83.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:45,804 INFO L168 Benchmark]: Boogie Preprocessor took 34.49 ms. Allocated memory is still 107.0 MB. Free memory was 83.0 MB in the beginning and 81.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:45,805 INFO L168 Benchmark]: RCFGBuilder took 526.03 ms. Allocated memory is still 107.0 MB. Free memory was 81.5 MB in the beginning and 64.1 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:45,806 INFO L168 Benchmark]: TraceAbstraction took 722.62 ms. Allocated memory is still 107.0 MB. Free memory was 64.1 MB in the beginning and 41.6 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:45,807 INFO L168 Benchmark]: Witness Printer took 6.13 ms. Allocated memory is still 107.0 MB. Free memory is still 41.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:58:45,812 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 79.7 MB. Free memory was 39.2 MB in the beginning and 39.2 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 334.00 ms. Allocated memory was 79.7 MB in the beginning and 107.0 MB in the end (delta: 27.3 MB). Free memory was 48.1 MB in the beginning and 84.4 MB in the end (delta: -36.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.05 ms. Allocated memory is still 107.0 MB. Free memory was 84.4 MB in the beginning and 83.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.49 ms. Allocated memory is still 107.0 MB. Free memory was 83.0 MB in the beginning and 81.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 526.03 ms. Allocated memory is still 107.0 MB. Free memory was 81.5 MB in the beginning and 64.1 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 722.62 ms. Allocated memory is still 107.0 MB. Free memory was 64.1 MB in the beginning and 41.6 MB in the end (delta: 22.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 6.13 ms. Allocated memory is still 107.0 MB. Free memory is still 41.6 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 someBinaryFLOATComparisonOperation at line 81, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L77] float x = 0.0f; [L15] __uint32_t w; [L17] int exponent_less_127; [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (w) = gf_u.word [L25] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L27] COND FALSE !(exponent_less_127 < 23) [L43] COND TRUE exponent_less_127 == 128 [L45] return x + x; [L78] float res = round_float(x); [L81] EXPR res == 0.0f && __signbit_float(res) == 0 [L81] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_1032a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 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=26occurred 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 0.2.0-69874e2 [2020-12-01 15:58:48,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:58:48,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:58:48,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:58:48,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:58:48,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:58:48,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:58:48,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:58:48,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:58:48,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:58:48,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:58:48,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:58:48,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:58:48,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:58:48,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:58:48,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:58:48,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:58:48,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:58:48,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:58:48,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:58:48,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:58:49,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:58:49,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:58:49,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:58:49,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:58:49,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:58:49,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:58:49,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:58:49,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:58:49,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:58:49,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:58:49,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:58:49,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:58:49,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:58:49,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:58:49,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:58:49,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:58:49,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:58:49,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:58:49,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:58:49,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:58:49,036 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:58:49,091 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:58:49,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:58:49,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:58:49,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:58:49,096 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:58:49,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:58:49,097 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:58:49,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:58:49,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:58:49,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:58:49,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:58:49,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:58:49,100 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:58:49,100 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:58:49,101 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:58:49,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:58:49,101 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:58:49,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:58:49,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:58:49,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:58:49,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:58:49,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:58:49,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:58:49,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:58:49,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:58:49,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:58:49,104 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:58:49,105 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:58:49,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:58:49,105 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:58:49,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:58:49,106 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_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cff56ef2177d4a827b720aa6155a34e4f93cd99b [2020-12-01 15:58:49,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:58:49,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:58:49,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:58:49,593 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:58:49,594 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:58:49,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2020-12-01 15:58:49,684 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/data/8be65dd7d/0192d20a51fc4d46a8f992c2d3ad0cc3/FLAGd29746360 [2020-12-01 15:58:50,369 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:58:50,369 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2020-12-01 15:58:50,382 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/data/8be65dd7d/0192d20a51fc4d46a8f992c2d3ad0cc3/FLAGd29746360 [2020-12-01 15:58:50,759 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/data/8be65dd7d/0192d20a51fc4d46a8f992c2d3ad0cc3 [2020-12-01 15:58:50,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:58:50,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:58:50,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:58:50,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:58:50,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:58:50,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:58:50" (1/1) ... [2020-12-01 15:58:50,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b51fb22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:50, skipping insertion in model container [2020-12-01 15:58:50,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:58:50" (1/1) ... [2020-12-01 15:58:50,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:58:50,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:58:51,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:58:51,055 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:58:51,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:58:51,168 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:58:51,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:51 WrapperNode [2020-12-01 15:58:51,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:58:51,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:58:51,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:58:51,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:58:51,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:51" (1/1) ... [2020-12-01 15:58:51,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:51" (1/1) ... [2020-12-01 15:58:51,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:58:51,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:58:51,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:58:51,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:58:51,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:51" (1/1) ... [2020-12-01 15:58:51,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:51" (1/1) ... [2020-12-01 15:58:51,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:51" (1/1) ... [2020-12-01 15:58:51,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:51" (1/1) ... [2020-12-01 15:58:51,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:51" (1/1) ... [2020-12-01 15:58:51,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:51" (1/1) ... [2020-12-01 15:58:51,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:51" (1/1) ... [2020-12-01 15:58:51,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:58:51,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:58:51,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:58:51,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:58:51,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/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 [2020-12-01 15:58:51,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:58:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:58:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-01 15:58:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 15:58:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:58:51,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:58:51,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-01 15:58:51,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 15:58:51,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:58:51,839 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:58:51,840 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-01 15:58:51,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:58:51 BoogieIcfgContainer [2020-12-01 15:58:51,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:58:51,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:58:51,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:58:51,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:58:51,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:58:50" (1/3) ... [2020-12-01 15:58:51,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6830fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:58:51, skipping insertion in model container [2020-12-01 15:58:51,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:51" (2/3) ... [2020-12-01 15:58:51,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6830fa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:58:51, skipping insertion in model container [2020-12-01 15:58:51,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:58:51" (3/3) ... [2020-12-01 15:58:51,852 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2020-12-01 15:58:51,868 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:58:51,872 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:58:51,886 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:58:51,917 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:58:51,917 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:58:51,917 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:58:51,917 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:58:51,918 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:58:51,918 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:58:51,939 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:58:51,939 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:58:51,954 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-12-01 15:58:51,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:58:51,959 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:58:51,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:58:51,961 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:58:51,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:51,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2020-12-01 15:58:51,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:58:51,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542576723] [2020-12-01 15:58:51,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/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 [2020-12-01 15:58:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:58:52,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 15:58:52,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:58:52,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:58:52,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:58:52,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:58:52,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542576723] [2020-12-01 15:58:52,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:58:52,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 15:58:52,289 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64641913] [2020-12-01 15:58:52,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:58:52,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:58:52,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:58:52,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:58:52,324 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-12-01 15:58:52,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:58:52,357 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-12-01 15:58:52,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:58:52,365 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-01 15:58:52,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:58:52,380 INFO L225 Difference]: With dead ends: 49 [2020-12-01 15:58:52,380 INFO L226 Difference]: Without dead ends: 22 [2020-12-01 15:58:52,387 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 [2020-12-01 15:58:52,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-12-01 15:58:52,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-12-01 15:58:52,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-01 15:58:52,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-12-01 15:58:52,438 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2020-12-01 15:58:52,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:58:52,439 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-12-01 15:58:52,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:58:52,439 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-12-01 15:58:52,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:58:52,440 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:58:52,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:58:52,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:58:52,657 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:58:52,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:52,662 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2020-12-01 15:58:52,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:58:52,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160490110] [2020-12-01 15:58:52,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/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 [2020-12-01 15:58:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:58:52,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:58:52,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:58:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:58:53,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:58:53,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:58:53,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160490110] [2020-12-01 15:58:53,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:58:53,236 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-12-01 15:58:53,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758821820] [2020-12-01 15:58:53,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:58:53,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:58:53,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:58:53,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:58:53,243 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 8 states. [2020-12-01 15:58:53,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:58:53,456 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2020-12-01 15:58:53,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:58:53,457 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-12-01 15:58:53,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:58:53,461 INFO L225 Difference]: With dead ends: 34 [2020-12-01 15:58:53,461 INFO L226 Difference]: Without dead ends: 20 [2020-12-01 15:58:53,465 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:58:53,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-01 15:58:53,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-12-01 15:58:53,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-01 15:58:53,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-12-01 15:58:53,479 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2020-12-01 15:58:53,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:58:53,479 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-12-01 15:58:53,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:58:53,481 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-12-01 15:58:53,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 15:58:53,486 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:58:53,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:58:53,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 15:58:53,703 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:58:53,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:53,704 INFO L82 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2020-12-01 15:58:53,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:58:53,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264861407] [2020-12-01 15:58:53,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/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 [2020-12-01 15:58:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:58:53,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-01 15:58:53,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:58:53,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:58:53,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:58:54,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:58:54,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264861407] [2020-12-01 15:58:54,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:58:54,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-12-01 15:58:54,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935940589] [2020-12-01 15:58:54,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-01 15:58:54,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:58:54,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-01 15:58:54,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:58:54,046 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2020-12-01 15:58:54,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:58:54,242 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-12-01 15:58:54,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:58:54,243 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-12-01 15:58:54,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:58:54,244 INFO L225 Difference]: With dead ends: 23 [2020-12-01 15:58:54,244 INFO L226 Difference]: Without dead ends: 20 [2020-12-01 15:58:54,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-12-01 15:58:54,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-01 15:58:54,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-12-01 15:58:54,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-01 15:58:54,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2020-12-01 15:58:54,253 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2020-12-01 15:58:54,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:58:54,254 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2020-12-01 15:58:54,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-01 15:58:54,254 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-12-01 15:58:54,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 15:58:54,257 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:58:54,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:58:54,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 15:58:54,471 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:58:54,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:54,472 INFO L82 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2020-12-01 15:58:54,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:58:54,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201355856] [2020-12-01 15:58:54,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-01 15:58:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:58:54,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 19 conjunts are in the unsatisfiable core [2020-12-01 15:58:54,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:58:54,763 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:58:54,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:58:54,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:58:55,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:58:55,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201355856] [2020-12-01 15:58:55,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:58:55,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 11] imperfect sequences [] total 17 [2020-12-01 15:58:55,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681026007] [2020-12-01 15:58:55,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-01 15:58:55,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:58:55,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-01 15:58:55,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-12-01 15:58:55,571 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 17 states. [2020-12-01 15:58:56,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:58:56,020 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2020-12-01 15:58:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-01 15:58:56,027 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2020-12-01 15:58:56,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:58:56,027 INFO L225 Difference]: With dead ends: 20 [2020-12-01 15:58:56,027 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:58:56,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2020-12-01 15:58:56,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:58:56,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:58:56,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:58:56,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:58:56,029 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-12-01 15:58:56,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:58:56,030 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:58:56,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-01 15:58:56,030 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:58:56,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:58:56,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-01 15:58:56,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:58:56,436 INFO L262 CegarLoopResult]: For program point L27(lines 27 48) no Hoare annotation was computed. [2020-12-01 15:58:56,436 INFO L262 CegarLoopResult]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2020-12-01 15:58:56,437 INFO L258 CegarLoopResult]: At program point L60-2(lines 60 64) the Hoare annotation is: (and (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)))) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_round_float_#res|) |ULTIMATE.start_main_#t~short15|) [2020-12-01 15:58:56,437 INFO L262 CegarLoopResult]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2020-12-01 15:58:56,437 INFO L262 CegarLoopResult]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2020-12-01 15:58:56,437 INFO L258 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) [2020-12-01 15:58:56,437 INFO L262 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-12-01 15:58:56,437 INFO L262 CegarLoopResult]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2020-12-01 15:58:56,437 INFO L262 CegarLoopResult]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2020-12-01 15:58:56,438 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-01 15:58:56,438 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-12-01 15:58:56,438 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:58:56,438 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:58:56,438 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:58:56,438 INFO L262 CegarLoopResult]: For program point L28(lines 28 41) no Hoare annotation was computed. [2020-12-01 15:58:56,438 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:58:56,438 INFO L265 CegarLoopResult]: At program point L86(lines 69 87) the Hoare annotation is: true [2020-12-01 15:58:56,439 INFO L262 CegarLoopResult]: For program point L49(lines 49 53) no Hoare annotation was computed. [2020-12-01 15:58:56,439 INFO L262 CegarLoopResult]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2020-12-01 15:58:56,439 INFO L262 CegarLoopResult]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2020-12-01 15:58:56,439 INFO L258 CegarLoopResult]: At program point L66(lines 57 67) the Hoare annotation is: (and (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= (_ +zero 8 24) |ULTIMATE.start_round_float_#res|) |ULTIMATE.start_main_#t~short15|) [2020-12-01 15:58:56,439 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:58:56,440 INFO L258 CegarLoopResult]: At program point L54(lines 14 55) the Hoare annotation is: (and (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_round_float_#res|)) [2020-12-01 15:58:56,440 INFO L262 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-12-01 15:58:56,440 INFO L262 CegarLoopResult]: For program point L43(lines 43 47) no Hoare annotation was computed. [2020-12-01 15:58:56,440 INFO L262 CegarLoopResult]: For program point L35(lines 35 37) no Hoare annotation was computed. [2020-12-01 15:58:56,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,460 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,461 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,464 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,464 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,465 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,465 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,466 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,467 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,467 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,468 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,469 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,469 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,469 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,469 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:58:56 BoogieIcfgContainer [2020-12-01 15:58:56,472 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:58:56,473 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:58:56,473 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:58:56,474 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:58:56,475 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:58:51" (3/4) ... [2020-12-01 15:58:56,479 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:58:56,492 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-12-01 15:58:56,492 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 15:58:56,493 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 15:58:56,493 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:58:56,523 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~Pluszero~LONGDOUBLE() && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result [2020-12-01 15:58:56,525 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~Pluszero~LONGDOUBLE() == res && x == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-12-01 15:58:56,525 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~Pluszero~LONGDOUBLE() == res && x == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == \result) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-12-01 15:58:56,552 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_475a3ab4-37ca-48ac-a2a1-015a018ed2b5/bin/uautomizer/witness.graphml [2020-12-01 15:58:56,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:58:56,555 INFO L168 Benchmark]: Toolchain (without parser) took 5789.78 ms. Allocated memory was 73.4 MB in the beginning and 90.2 MB in the end (delta: 16.8 MB). Free memory was 58.5 MB in the beginning and 60.7 MB in the end (delta: -2.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:56,556 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 73.4 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:58:56,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.08 ms. Allocated memory is still 73.4 MB. Free memory was 58.3 MB in the beginning and 56.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:56,557 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.05 ms. Allocated memory is still 73.4 MB. Free memory was 56.1 MB in the beginning and 54.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:58:56,558 INFO L168 Benchmark]: Boogie Preprocessor took 74.29 ms. Allocated memory is still 73.4 MB. Free memory was 54.5 MB in the beginning and 52.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:56,559 INFO L168 Benchmark]: RCFGBuilder took 547.00 ms. Allocated memory is still 73.4 MB. Free memory was 52.8 MB in the beginning and 34.9 MB in the end (delta: 17.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:56,560 INFO L168 Benchmark]: TraceAbstraction took 4628.83 ms. Allocated memory was 73.4 MB in the beginning and 90.2 MB in the end (delta: 16.8 MB). Free memory was 34.4 MB in the beginning and 63.7 MB in the end (delta: -29.3 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:56,561 INFO L168 Benchmark]: Witness Printer took 79.74 ms. Allocated memory is still 90.2 MB. Free memory was 63.7 MB in the beginning and 60.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:56,564 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 73.4 MB. Free memory is still 55.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 404.08 ms. Allocated memory is still 73.4 MB. Free memory was 58.3 MB in the beginning and 56.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.05 ms. Allocated memory is still 73.4 MB. Free memory was 56.1 MB in the beginning and 54.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.29 ms. Allocated memory is still 73.4 MB. Free memory was 54.5 MB in the beginning and 52.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 547.00 ms. Allocated memory is still 73.4 MB. Free memory was 52.8 MB in the beginning and 34.9 MB in the end (delta: 17.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4628.83 ms. Allocated memory was 73.4 MB in the beginning and 90.2 MB in the end (delta: 16.8 MB). Free memory was 34.4 MB in the beginning and 63.7 MB in the end (delta: -29.3 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. * Witness Printer took 79.74 ms. Allocated memory is still 90.2 MB. Free memory was 63.7 MB in the beginning and 60.7 MB in the end (delta: 3.0 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[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] * 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: 60]: Loop Invariant [2020-12-01 15:58:56,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((~Pluszero~LONGDOUBLE() == res && x == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 14]: Loop Invariant [2020-12-01 15:58:56,580 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 57]: Loop Invariant [2020-12-01 15:58:56,584 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,584 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,585 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,585 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,586 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,586 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,586 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-12-01 15:58:56,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((((~Pluszero~LONGDOUBLE() == res && x == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == \result) && aux-res == 0.0f && __signbit_float(res) == 0-aux - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 187 SDslu, 68 SDs, 0 SdLazy, 94 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 69 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 138 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 14 QuantifiedInterpolants, 9364 SizeOfPredicates, 27 NumberOfNonLiveVariables, 206 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...