./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.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_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c -s /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/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 25f88ce65e61cc7e7d9ef61e43238296440b1f18 ............................................................................................................................................................................................................................................................................................... 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_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c -s /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/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 25f88ce65e61cc7e7d9ef61e43238296440b1f18 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:05:59,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:05:59,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:05:59,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:05:59,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:05:59,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:05:59,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:05:59,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:05:59,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:05:59,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:05:59,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:05:59,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:05:59,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:05:59,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:05:59,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:05:59,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:05:59,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:05:59,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:05:59,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:05:59,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:05:59,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:05:59,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:05:59,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:05:59,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:05:59,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:05:59,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:05:59,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:05:59,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:05:59,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:05:59,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:05:59,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:05:59,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:05:59,333 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:05:59,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:05:59,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:05:59,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:05:59,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:05:59,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:05:59,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:05:59,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:05:59,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:05:59,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:05:59,407 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:05:59,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:05:59,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:05:59,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:05:59,409 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:05:59,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:05:59,410 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:05:59,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:05:59,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:05:59,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:05:59,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:05:59,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:05:59,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:05:59,412 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:05:59,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:05:59,412 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:05:59,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:05:59,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:05:59,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:05:59,416 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:05:59,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:05:59,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:05:59,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:05:59,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:05:59,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:05:59,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:05:59,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:05:59,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:05:59,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:05:59,420 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_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25f88ce65e61cc7e7d9ef61e43238296440b1f18 [2020-12-01 15:05:59,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:05:59,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:05:59,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:05:59,785 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:05:59,788 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:05:59,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2020-12-01 15:05:59,897 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/data/f613a7e77/18c9473c5c454dd5b197d248ab2e1d61/FLAG5c6d2f891 [2020-12-01 15:06:00,429 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:06:00,430 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2020-12-01 15:06:00,438 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/data/f613a7e77/18c9473c5c454dd5b197d248ab2e1d61/FLAG5c6d2f891 [2020-12-01 15:06:00,795 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/data/f613a7e77/18c9473c5c454dd5b197d248ab2e1d61 [2020-12-01 15:06:00,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:06:00,800 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:06:00,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:06:00,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:06:00,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:06:00,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:06:00" (1/1) ... [2020-12-01 15:06:00,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7df66477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:00, skipping insertion in model container [2020-12-01 15:06:00,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:06:00" (1/1) ... [2020-12-01 15:06:00,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:06:00,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:06:01,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:06:01,110 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:06:01,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:06:01,167 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:06:01,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:01 WrapperNode [2020-12-01 15:06:01,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:06:01,169 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:06:01,169 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:06:01,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:06:01,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:01" (1/1) ... [2020-12-01 15:06:01,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:01" (1/1) ... [2020-12-01 15:06:01,240 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:06:01,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:06:01,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:06:01,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:06:01,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:01" (1/1) ... [2020-12-01 15:06:01,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:01" (1/1) ... [2020-12-01 15:06:01,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:01" (1/1) ... [2020-12-01 15:06:01,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:01" (1/1) ... [2020-12-01 15:06:01,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:01" (1/1) ... [2020-12-01 15:06:01,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:01" (1/1) ... [2020-12-01 15:06:01,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:01" (1/1) ... [2020-12-01 15:06:01,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:06:01,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:06:01,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:06:01,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:06:01,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/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 15:06:01,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:06:01,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:06:01,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 15:06:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:06:01,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 15:06:01,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:06:01,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:06:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:06:01,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:06:01,734 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:06:01,734 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-01 15:06:01,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:06:01 BoogieIcfgContainer [2020-12-01 15:06:01,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:06:01,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:06:01,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:06:01,742 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:06:01,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:06:00" (1/3) ... [2020-12-01 15:06:01,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1d7e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:06:01, skipping insertion in model container [2020-12-01 15:06:01,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:01" (2/3) ... [2020-12-01 15:06:01,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1d7e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:06:01, skipping insertion in model container [2020-12-01 15:06:01,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:06:01" (3/3) ... [2020-12-01 15:06:01,746 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2020-12-01 15:06:01,763 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:06:01,767 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:06:01,780 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:06:01,809 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:06:01,809 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:06:01,809 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:06:01,810 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:06:01,810 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:06:01,810 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:06:01,810 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:06:01,810 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:06:01,826 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-01 15:06:01,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 15:06:01,832 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:06:01,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:06:01,834 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:06:01,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:06:01,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-12-01 15:06:01,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:06:01,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557593085] [2020-12-01 15:06:01,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:06:01,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:06:02,076 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 15:06:02,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557593085] [2020-12-01 15:06:02,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:06:02,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:06:02,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114214556] [2020-12-01 15:06:02,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:06:02,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:06:02,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:06:02,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:06:02,128 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-12-01 15:06:02,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:06:02,163 INFO L93 Difference]: Finished difference Result 65 states and 99 transitions. [2020-12-01 15:06:02,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:06:02,164 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-01 15:06:02,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:06:02,188 INFO L225 Difference]: With dead ends: 65 [2020-12-01 15:06:02,204 INFO L226 Difference]: Without dead ends: 30 [2020-12-01 15:06:02,208 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 15:06:02,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-01 15:06:02,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-01 15:06:02,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-01 15:06:02,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-12-01 15:06:02,262 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-12-01 15:06:02,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:06:02,263 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-12-01 15:06:02,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:06:02,263 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-12-01 15:06:02,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:06:02,264 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:06:02,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:06:02,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:06:02,265 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:06:02,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:06:02,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-12-01 15:06:02,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:06:02,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653458787] [2020-12-01 15:06:02,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:06:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:06:02,397 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:06:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:06:02,476 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:06:02,521 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:06:02,521 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:06:02,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:06:02,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:06:02 BoogieIcfgContainer [2020-12-01 15:06:02,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:06:02,578 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:06:02,578 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:06:02,579 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:06:02,579 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:06:01" (3/4) ... [2020-12-01 15:06:02,583 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:06:02,583 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:06:02,589 INFO L168 Benchmark]: Toolchain (without parser) took 1784.73 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 49.3 MB in the beginning and 63.2 MB in the end (delta: -13.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:06:02,591 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 79.7 MB. Free memory was 50.4 MB in the beginning and 50.4 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:06:02,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.33 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 49.1 MB in the beginning and 73.0 MB in the end (delta: -23.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:06:02,594 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.34 ms. Allocated memory is still 96.5 MB. Free memory was 73.0 MB in the beginning and 71.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:06:02,595 INFO L168 Benchmark]: Boogie Preprocessor took 35.02 ms. Allocated memory is still 96.5 MB. Free memory was 71.4 MB in the beginning and 69.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:06:02,596 INFO L168 Benchmark]: RCFGBuilder took 459.34 ms. Allocated memory is still 96.5 MB. Free memory was 69.8 MB in the beginning and 50.8 MB in the end (delta: 19.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:06:02,598 INFO L168 Benchmark]: TraceAbstraction took 837.79 ms. Allocated memory is still 96.5 MB. Free memory was 50.4 MB in the beginning and 63.2 MB in the end (delta: -12.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:06:02,599 INFO L168 Benchmark]: Witness Printer took 5.55 ms. Allocated memory is still 96.5 MB. Free memory is still 63.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:06:02,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 79.7 MB. Free memory was 50.4 MB in the beginning and 50.4 MB in the end (delta: 21.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 365.33 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 49.1 MB in the beginning and 73.0 MB in the end (delta: -23.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.34 ms. Allocated memory is still 96.5 MB. Free memory was 73.0 MB in the beginning and 71.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.02 ms. Allocated memory is still 96.5 MB. Free memory was 71.4 MB in the beginning and 69.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 459.34 ms. Allocated memory is still 96.5 MB. Free memory was 69.8 MB in the beginning and 50.8 MB in the end (delta: 19.0 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 837.79 ms. Allocated memory is still 96.5 MB. Free memory was 50.4 MB in the beginning and 63.2 MB in the end (delta: -12.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.55 ms. Allocated memory is still 96.5 MB. Free memory is still 63.2 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 15, overapproximation of someBinaryArithmeticFLOAToperation at line 32, overapproximation of bitwiseAnd at line 29. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] float x = -1.0f / 0.0f; [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L95] float res = __ieee754_sqrtf(x); [L15] return x != x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L98] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0740.c", 3, "reach_error") VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 15:06:05,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:06:05,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:06:05,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:06:05,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:06:05,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:06:05,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:06:05,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:06:05,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:06:05,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:06:05,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:06:05,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:06:05,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:06:05,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:06:05,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:06:05,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:06:05,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:06:05,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:06:05,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:06:05,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:06:05,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:06:05,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:06:05,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:06:05,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:06:05,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:06:05,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:06:05,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:06:05,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:06:05,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:06:05,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:06:05,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:06:05,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:06:05,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:06:05,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:06:05,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:06:05,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:06:05,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:06:05,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:06:05,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:06:05,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:06:05,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:06:05,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:06:05,852 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:06:05,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:06:05,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:06:05,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:06:05,858 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:06:05,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:06:05,859 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:06:05,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:06:05,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:06:05,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:06:05,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:06:05,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:06:05,862 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:06:05,862 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:06:05,863 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:06:05,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:06:05,863 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:06:05,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:06:05,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:06:05,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:06:05,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:06:05,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:06:05,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:06:05,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:06:05,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:06:05,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:06:05,867 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:06:05,867 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:06:05,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:06:05,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:06:05,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:06:05,869 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_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25f88ce65e61cc7e7d9ef61e43238296440b1f18 [2020-12-01 15:06:06,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:06:06,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:06:06,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:06:06,397 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:06:06,398 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:06:06,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2020-12-01 15:06:06,500 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/data/402b66cbd/c03f823ffa5249e3949de6a6cca52fe5/FLAGe988bc1ff [2020-12-01 15:06:07,152 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:06:07,153 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2020-12-01 15:06:07,161 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/data/402b66cbd/c03f823ffa5249e3949de6a6cca52fe5/FLAGe988bc1ff [2020-12-01 15:06:07,512 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/data/402b66cbd/c03f823ffa5249e3949de6a6cca52fe5 [2020-12-01 15:06:07,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:06:07,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:06:07,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:06:07,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:06:07,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:06:07,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:06:07" (1/1) ... [2020-12-01 15:06:07,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c705af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:07, skipping insertion in model container [2020-12-01 15:06:07,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:06:07" (1/1) ... [2020-12-01 15:06:07,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:06:07,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:06:07,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:06:07,784 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:06:07,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:06:07,878 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:06:07,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:07 WrapperNode [2020-12-01 15:06:07,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:06:07,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:06:07,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:06:07,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:06:07,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:07" (1/1) ... [2020-12-01 15:06:07,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:07" (1/1) ... [2020-12-01 15:06:07,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:06:07,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:06:07,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:06:07,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:06:08,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:07" (1/1) ... [2020-12-01 15:06:08,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:07" (1/1) ... [2020-12-01 15:06:08,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:07" (1/1) ... [2020-12-01 15:06:08,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:07" (1/1) ... [2020-12-01 15:06:08,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:07" (1/1) ... [2020-12-01 15:06:08,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:07" (1/1) ... [2020-12-01 15:06:08,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:07" (1/1) ... [2020-12-01 15:06:08,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:06:08,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:06:08,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:06:08,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:06:08,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/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 15:06:08,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:06:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:06:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-01 15:06:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 15:06:08,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:06:08,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:06:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-01 15:06:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 15:06:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:06:11,220 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:06:11,220 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-01 15:06:11,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:06:11 BoogieIcfgContainer [2020-12-01 15:06:11,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:06:11,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:06:11,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:06:11,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:06:11,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:06:07" (1/3) ... [2020-12-01 15:06:11,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a21ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:06:11, skipping insertion in model container [2020-12-01 15:06:11,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:06:07" (2/3) ... [2020-12-01 15:06:11,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a21ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:06:11, skipping insertion in model container [2020-12-01 15:06:11,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:06:11" (3/3) ... [2020-12-01 15:06:11,233 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2020-12-01 15:06:11,250 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:06:11,254 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:06:11,268 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:06:11,297 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:06:11,297 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:06:11,298 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:06:11,298 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:06:11,298 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:06:11,299 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:06:11,299 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:06:11,299 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:06:11,314 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-01 15:06:11,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 15:06:11,320 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:06:11,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:06:11,321 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:06:11,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:06:11,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-12-01 15:06:11,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:06:11,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1670566970] [2020-12-01 15:06:11,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/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 15:06:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:06:11,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 15:06:11,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:06:11,690 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 15:06:11,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:06:11,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:06:11,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1670566970] [2020-12-01 15:06:11,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:06:11,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 15:06:11,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923615051] [2020-12-01 15:06:11,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:06:11,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:06:11,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:06:11,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:06:11,747 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-12-01 15:06:11,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:06:11,780 INFO L93 Difference]: Finished difference Result 65 states and 99 transitions. [2020-12-01 15:06:11,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:06:11,782 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-01 15:06:11,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:06:11,802 INFO L225 Difference]: With dead ends: 65 [2020-12-01 15:06:11,803 INFO L226 Difference]: Without dead ends: 30 [2020-12-01 15:06:11,806 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:06:11,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-01 15:06:11,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-01 15:06:11,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-01 15:06:11,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-12-01 15:06:11,856 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-12-01 15:06:11,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:06:11,857 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-12-01 15:06:11,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:06:11,857 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-12-01 15:06:11,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:06:11,858 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:06:11,859 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:06:12,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:06:12,083 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:06:12,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:06:12,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-12-01 15:06:12,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:06:12,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197739803] [2020-12-01 15:06:12,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/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 15:06:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:06:12,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 15:06:12,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:06:12,623 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 15:06:12,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:06:14,742 WARN L838 $PredicateComparison]: unable to prove that (= (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start___ieee754_sqrtf_~x c_ULTIMATE.start___ieee754_sqrtf_~x) c_ULTIMATE.start___ieee754_sqrtf_~x)) is different from false [2020-12-01 15:06:15,571 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 15:06:15,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197739803] [2020-12-01 15:06:15,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:06:15,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-12-01 15:06:15,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120844610] [2020-12-01 15:06:15,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-01 15:06:15,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:06:15,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-01 15:06:15,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=55, Unknown=1, NotChecked=14, Total=90 [2020-12-01 15:06:15,584 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 10 states. [2020-12-01 15:06:18,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:06:18,034 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2020-12-01 15:06:18,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:06:18,035 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2020-12-01 15:06:18,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:06:18,036 INFO L225 Difference]: With dead ends: 35 [2020-12-01 15:06:18,036 INFO L226 Difference]: Without dead ends: 30 [2020-12-01 15:06:18,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=44, Invalid=91, Unknown=1, NotChecked=20, Total=156 [2020-12-01 15:06:18,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-01 15:06:18,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-01 15:06:18,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-01 15:06:18,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2020-12-01 15:06:18,044 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 10 [2020-12-01 15:06:18,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:06:18,045 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2020-12-01 15:06:18,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-01 15:06:18,045 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2020-12-01 15:06:18,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:06:18,046 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:06:18,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:06:18,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 15:06:18,247 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:06:18,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:06:18,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1245605874, now seen corresponding path program 1 times [2020-12-01 15:06:18,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:06:18,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098195870] [2020-12-01 15:06:18,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/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 15:06:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:06:18,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:06:18,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:06:18,532 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 15:06:18,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:06:18,714 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 15:06:18,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098195870] [2020-12-01 15:06:18,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:06:18,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-12-01 15:06:18,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752745455] [2020-12-01 15:06:18,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:06:18,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:06:18,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:06:18,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:06:18,718 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 8 states. [2020-12-01 15:06:18,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:06:18,896 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2020-12-01 15:06:18,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:06:18,897 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-12-01 15:06:18,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:06:18,897 INFO L225 Difference]: With dead ends: 30 [2020-12-01 15:06:18,897 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:06:18,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:06:18,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:06:18,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:06:18,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:06:18,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:06:18,899 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-12-01 15:06:18,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:06:18,899 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:06:18,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:06:18,900 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:06:18,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:06:19,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 15:06:19,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:06:19,265 INFO L262 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-12-01 15:06:19,265 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-01 15:06:19,266 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-12-01 15:06:19,266 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:06:19,266 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:06:19,266 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2020-12-01 15:06:19,266 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2020-12-01 15:06:19,267 INFO L262 CegarLoopResult]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2020-12-01 15:06:19,267 INFO L265 CegarLoopResult]: At program point L103(lines 86 104) the Hoare annotation is: true [2020-12-01 15:06:19,267 INFO L262 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2020-12-01 15:06:19,267 INFO L258 CegarLoopResult]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2020-12-01 15:06:19,267 INFO L262 CegarLoopResult]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2020-12-01 15:06:19,267 INFO L262 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-12-01 15:06:19,268 INFO L262 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-12-01 15:06:19,268 INFO L262 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-12-01 15:06:19,268 INFO L258 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_sqrtf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= |ULTIMATE.start___ieee754_sqrtf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)))) [2020-12-01 15:06:19,268 INFO L262 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-12-01 15:06:19,268 INFO L262 CegarLoopResult]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2020-12-01 15:06:19,269 INFO L262 CegarLoopResult]: For program point L98(lines 98 101) no Hoare annotation was computed. [2020-12-01 15:06:19,269 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:06:19,269 INFO L262 CegarLoopResult]: For program point L57(lines 57 61) no Hoare annotation was computed. [2020-12-01 15:06:19,269 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:06:19,269 INFO L262 CegarLoopResult]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2020-12-01 15:06:19,269 INFO L262 CegarLoopResult]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2020-12-01 15:06:19,270 INFO L258 CegarLoopResult]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_sqrtf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))) [2020-12-01 15:06:19,270 INFO L262 CegarLoopResult]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2020-12-01 15:06:19,270 INFO L262 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2020-12-01 15:06:19,270 INFO L258 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2020-12-01 15:06:19,270 INFO L262 CegarLoopResult]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2020-12-01 15:06:19,271 INFO L262 CegarLoopResult]: For program point L66(lines 66 75) no Hoare annotation was computed. [2020-12-01 15:06:19,271 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:06:19,271 INFO L258 CegarLoopResult]: At program point L83(lines 19 84) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_sqrtf_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= |ULTIMATE.start___ieee754_sqrtf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)))) [2020-12-01 15:06:19,271 INFO L262 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-12-01 15:06:19,271 INFO L262 CegarLoopResult]: For program point L68(lines 68 74) no Hoare annotation was computed. [2020-12-01 15:06:19,281 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,282 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,283 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,283 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,283 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,283 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,284 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,284 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,285 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,287 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,288 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,288 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,297 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,297 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,297 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,298 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,298 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,298 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,298 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,299 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,299 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,300 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,300 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,300 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,302 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,303 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,303 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,303 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,304 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,304 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,304 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,305 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,305 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,306 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,306 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,306 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,306 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,307 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,307 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,307 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,308 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,310 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,314 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,315 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,315 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,317 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,317 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,319 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:06:19 BoogieIcfgContainer [2020-12-01 15:06:19,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:06:19,323 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:06:19,323 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:06:19,323 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:06:19,324 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:06:11" (3/4) ... [2020-12-01 15:06:19,329 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:06:19,345 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-01 15:06:19,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 15:06:19,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:06:19,355 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:06:19,391 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) [2020-12-01 15:06:19,392 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) [2020-12-01 15:06:19,447 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_35d359f6-5bc6-4d4e-bf53-2a8f5801af30/bin/uautomizer/witness.graphml [2020-12-01 15:06:19,447 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:06:19,451 INFO L168 Benchmark]: Toolchain (without parser) took 11930.93 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.7 MB in the beginning and 29.5 MB in the end (delta: -1.8 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:06:19,451 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 50.3 MB. Free memory was 33.1 MB in the beginning and 33.0 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:06:19,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.94 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.5 MB in the beginning and 44.5 MB in the end (delta: -17.0 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:06:19,453 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.99 ms. Allocated memory is still 60.8 MB. Free memory was 44.3 MB in the beginning and 42.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:06:19,453 INFO L168 Benchmark]: Boogie Preprocessor took 65.49 ms. Allocated memory is still 60.8 MB. Free memory was 42.5 MB in the beginning and 40.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:06:19,454 INFO L168 Benchmark]: RCFGBuilder took 3159.95 ms. Allocated memory is still 60.8 MB. Free memory was 40.9 MB in the beginning and 36.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:06:19,454 INFO L168 Benchmark]: TraceAbstraction took 8096.61 ms. Allocated memory is still 60.8 MB. Free memory was 36.4 MB in the beginning and 33.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-12-01 15:06:19,455 INFO L168 Benchmark]: Witness Printer took 124.44 ms. Allocated memory is still 60.8 MB. Free memory was 32.9 MB in the beginning and 29.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:06:19,458 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 50.3 MB. Free memory was 33.1 MB in the beginning and 33.0 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 366.94 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.5 MB in the beginning and 44.5 MB in the end (delta: -17.0 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.99 ms. Allocated memory is still 60.8 MB. Free memory was 44.3 MB in the beginning and 42.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.49 ms. Allocated memory is still 60.8 MB. Free memory was 42.5 MB in the beginning and 40.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3159.95 ms. Allocated memory is still 60.8 MB. Free memory was 40.9 MB in the beginning and 36.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8096.61 ms. Allocated memory is still 60.8 MB. Free memory was 36.4 MB in the beginning and 33.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * Witness Printer took 124.44 ms. Allocated memory is still 60.8 MB. Free memory was 32.9 MB in the beginning and 29.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2020-12-01 15:06:19,480 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,480 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,480 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,480 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,481 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,482 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,482 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,483 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,483 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,484 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,484 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,495 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,496 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,496 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,496 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,496 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,497 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,497 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,497 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,498 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,498 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,500 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,501 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant [2020-12-01 15:06:19,503 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,503 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,503 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,503 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,504 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,504 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,505 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,505 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant [2020-12-01 15:06:19,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,507 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,508 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,508 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,508 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,508 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,509 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,509 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,509 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,510 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,512 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,513 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:06:19,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:06:19,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 52 SDslu, 129 SDs, 0 SdLazy, 52 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 100 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 5 QuantifiedInterpolants, 3550 SizeOfPredicates, 17 NumberOfNonLiveVariables, 135 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...