./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be --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 25249e4a5dfcdfed2078f190bfb36f4672db41bdb03e03d1de22de138ec215e0 ............................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be --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 25249e4a5dfcdfed2078f190bfb36f4672db41bdb03e03d1de22de138ec215e0 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:10:22,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:10:22,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:10:22,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:10:22,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:10:22,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:10:22,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:10:22,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:10:22,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:10:22,275 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:10:22,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:10:22,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:10:22,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:10:22,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:10:22,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:10:22,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:10:22,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:10:22,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:10:22,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:10:22,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:10:22,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:10:22,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:10:22,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:10:22,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:10:22,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:10:22,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:10:22,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:10:22,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:10:22,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:10:22,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:10:22,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:10:22,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:10:22,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:10:22,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:10:22,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:10:22,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:10:22,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:10:22,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:10:22,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:10:22,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:10:22,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:10:22,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:10:22,395 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:10:22,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:10:22,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:10:22,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:10:22,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:10:22,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:10:22,398 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:10:22,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:10:22,399 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:10:22,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:10:22,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:10:22,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:10:22,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:10:22,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:10:22,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:10:22,400 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:10:22,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:10:22,401 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:10:22,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:10:22,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:10:22,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:10:22,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:10:22,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:10:22,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:10:22,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:10:22,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:10:22,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:10:22,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:10:22,404 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:10:22,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:10:22,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:10:22,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:10:22,405 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_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25249e4a5dfcdfed2078f190bfb36f4672db41bdb03e03d1de22de138ec215e0 [2021-10-21 20:10:22,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:10:22,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:10:22,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:10:22,776 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:10:22,777 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:10:22,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2021-10-21 20:10:22,875 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/data/c86392238/9c079065562a48739e4879f1c991ec41/FLAG9aa10f9fb [2021-10-21 20:10:23,466 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:10:23,466 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2021-10-21 20:10:23,475 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/data/c86392238/9c079065562a48739e4879f1c991ec41/FLAG9aa10f9fb [2021-10-21 20:10:23,812 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/data/c86392238/9c079065562a48739e4879f1c991ec41 [2021-10-21 20:10:23,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:10:23,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:10:23,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:10:23,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:10:23,842 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:10:23,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:10:23" (1/1) ... [2021-10-21 20:10:23,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46f04654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:23, skipping insertion in model container [2021-10-21 20:10:23,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:10:23" (1/1) ... [2021-10-21 20:10:23,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:10:23,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:10:24,129 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/sv-benchmarks/c/float-newlib/float_req_bl_0610.c[3190,3203] [2021-10-21 20:10:24,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:10:24,144 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:10:24,189 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/sv-benchmarks/c/float-newlib/float_req_bl_0610.c[3190,3203] [2021-10-21 20:10:24,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:10:24,217 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:10:24,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:24 WrapperNode [2021-10-21 20:10:24,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:10:24,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:10:24,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:10:24,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:10:24,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:24" (1/1) ... [2021-10-21 20:10:24,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:24" (1/1) ... [2021-10-21 20:10:24,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:10:24,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:10:24,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:10:24,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:10:24,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:24" (1/1) ... [2021-10-21 20:10:24,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:24" (1/1) ... [2021-10-21 20:10:24,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:24" (1/1) ... [2021-10-21 20:10:24,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:24" (1/1) ... [2021-10-21 20:10:24,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:24" (1/1) ... [2021-10-21 20:10:24,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:24" (1/1) ... [2021-10-21 20:10:24,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:24" (1/1) ... [2021-10-21 20:10:24,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:10:24,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:10:24,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:10:24,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:10:24,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:24" (1/1) ... [2021-10-21 20:10:24,364 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:10:24,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:24,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:24,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:10:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:10:24,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:10:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-21 20:10:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 20:10:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-21 20:10:24,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:10:24,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:10:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 20:10:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-21 20:10:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:10:24,915 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:10:24,915 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-21 20:10:24,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:10:24 BoogieIcfgContainer [2021-10-21 20:10:24,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:10:24,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:10:24,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:10:24,923 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:10:24,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:10:23" (1/3) ... [2021-10-21 20:10:24,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33810f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:10:24, skipping insertion in model container [2021-10-21 20:10:24,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:24" (2/3) ... [2021-10-21 20:10:24,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33810f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:10:24, skipping insertion in model container [2021-10-21 20:10:24,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:10:24" (3/3) ... [2021-10-21 20:10:24,927 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2021-10-21 20:10:24,934 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:10:24,934 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:10:24,992 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:10:25,007 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 20:10:25,007 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 20:10:25,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:10:25,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 20:10:25,033 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:10:25,034 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:10:25,035 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:10:25,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:10:25,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2021-10-21 20:10:25,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:10:25,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071094150] [2021-10-21 20:10:25,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:10:25,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:10:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:10:25,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:10:25,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:10:25,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071094150] [2021-10-21 20:10:25,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071094150] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:10:25,318 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:10:25,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:10:25,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865522351] [2021-10-21 20:10:25,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 20:10:25,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:10:25,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 20:10:25,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:10:25,346 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:10:25,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:10:25,367 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2021-10-21 20:10:25,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:10:25,369 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-21 20:10:25,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:10:25,380 INFO L225 Difference]: With dead ends: 64 [2021-10-21 20:10:25,381 INFO L226 Difference]: Without dead ends: 30 [2021-10-21 20:10:25,384 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:10:25,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-21 20:10:25,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-21 20:10:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:10:25,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2021-10-21 20:10:25,424 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2021-10-21 20:10:25,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:10:25,424 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-10-21 20:10:25,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:10:25,425 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2021-10-21 20:10:25,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 20:10:25,426 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:10:25,426 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:10:25,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:10:25,427 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:10:25,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:10:25,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2021-10-21 20:10:25,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:10:25,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252923045] [2021-10-21 20:10:25,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:10:25,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:10:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:25,529 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:10:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:10:25,754 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:10:25,756 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 20:10:25,758 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:10:25,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 20:10:25,768 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:10:25,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:10:25 BoogieIcfgContainer [2021-10-21 20:10:25,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:10:25,848 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:10:25,848 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:10:25,849 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:10:25,850 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:10:24" (3/4) ... [2021-10-21 20:10:25,854 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:10:25,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:10:25,857 INFO L168 Benchmark]: Toolchain (without parser) took 2038.30 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 68.2 MB in the beginning and 105.0 MB in the end (delta: -36.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:25,859 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 111.1 MB. Free memory is still 84.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:25,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.72 ms. Allocated memory is still 111.1 MB. Free memory was 67.9 MB in the beginning and 82.4 MB in the end (delta: -14.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:25,863 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.11 ms. Allocated memory is still 111.1 MB. Free memory was 82.4 MB in the beginning and 80.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:25,870 INFO L168 Benchmark]: Boogie Preprocessor took 52.60 ms. Allocated memory is still 111.1 MB. Free memory was 80.3 MB in the beginning and 78.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:25,872 INFO L168 Benchmark]: RCFGBuilder took 580.15 ms. Allocated memory is still 111.1 MB. Free memory was 78.2 MB in the beginning and 63.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:10:25,872 INFO L168 Benchmark]: TraceAbstraction took 926.69 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 63.4 MB in the beginning and 105.0 MB in the end (delta: -41.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:25,873 INFO L168 Benchmark]: Witness Printer took 6.02 ms. Allocated memory is still 134.2 MB. Free memory is still 105.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:10:25,884 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 111.1 MB. Free memory is still 84.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 398.72 ms. Allocated memory is still 111.1 MB. Free memory was 67.9 MB in the beginning and 82.4 MB in the end (delta: -14.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.11 ms. Allocated memory is still 111.1 MB. Free memory was 82.4 MB in the beginning and 80.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.60 ms. Allocated memory is still 111.1 MB. Free memory was 80.3 MB in the beginning and 78.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 580.15 ms. Allocated memory is still 111.1 MB. Free memory was 78.2 MB in the beginning and 63.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 926.69 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 63.4 MB in the beginning and 105.0 MB in the end (delta: -41.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.02 ms. Allocated memory is still 134.2 MB. Free memory is still 105.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 134]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 67, overapproximation of someBinaryArithmeticFLOAToperation at line 70. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L48-L52] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L129] float x = 0.0f / 0.0f; [L59] float w, s1, s2, z; [L60] __int32_t ix, hx, id; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] ieee_float_shape_type gf_u; [L64] gf_u.value = (x) [L65] EXPR gf_u.word [L65] (hx) = gf_u.word [L67] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L68] COND TRUE ix >= 0x50800000 VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L69] COND TRUE ((ix) > 0x7f800000L) [L70] return x + x; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L130] float res = atan_float(x); [L17] return x != x; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L133] COND TRUE !isnan_float(res) [L134] reach_error() VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 776.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 13.1ms, AutomataDifference: 56.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 43 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 22.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.2ms SsaConstructionTime, 141.3ms SatisfiabilityAnalysisTime, 108.8ms InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2021-10-21 20:10:25,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:10:28,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:10:28,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:10:28,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:10:28,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:10:28,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:10:28,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:10:28,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:10:28,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:10:28,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:10:28,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:10:28,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:10:28,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:10:28,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:10:28,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:10:28,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:10:28,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:10:28,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:10:28,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:10:28,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:10:28,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:10:28,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:10:28,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:10:28,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:10:28,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:10:29,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:10:29,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:10:29,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:10:29,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:10:29,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:10:29,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:10:29,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:10:29,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:10:29,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:10:29,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:10:29,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:10:29,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:10:29,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:10:29,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:10:29,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:10:29,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:10:29,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-21 20:10:29,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:10:29,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:10:29,094 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:10:29,094 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:10:29,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:10:29,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:10:29,097 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:10:29,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:10:29,098 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:10:29,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:10:29,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:10:29,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:10:29,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:10:29,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:10:29,101 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 20:10:29,101 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 20:10:29,102 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:10:29,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:10:29,102 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:10:29,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:10:29,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:10:29,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:10:29,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:10:29,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:10:29,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:10:29,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:10:29,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:10:29,105 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 20:10:29,105 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 20:10:29,106 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:10:29,106 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:10:29,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:10:29,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:10:29,107 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 20:10:29,108 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_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25249e4a5dfcdfed2078f190bfb36f4672db41bdb03e03d1de22de138ec215e0 [2021-10-21 20:10:29,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:10:29,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:10:29,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:10:29,585 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:10:29,586 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:10:29,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2021-10-21 20:10:29,698 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/data/d297c7200/d6d41ec5774a4d31ad5f4c17182ee6fa/FLAGcacd11b29 [2021-10-21 20:10:30,425 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:10:30,426 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2021-10-21 20:10:30,440 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/data/d297c7200/d6d41ec5774a4d31ad5f4c17182ee6fa/FLAGcacd11b29 [2021-10-21 20:10:30,746 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/data/d297c7200/d6d41ec5774a4d31ad5f4c17182ee6fa [2021-10-21 20:10:30,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:10:30,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:10:30,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:10:30,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:10:30,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:10:30,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:10:30" (1/1) ... [2021-10-21 20:10:30,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7bf374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:30, skipping insertion in model container [2021-10-21 20:10:30,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:10:30" (1/1) ... [2021-10-21 20:10:30,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:10:30,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:10:31,081 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/sv-benchmarks/c/float-newlib/float_req_bl_0610.c[3190,3203] [2021-10-21 20:10:31,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:10:31,144 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:10:31,242 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/sv-benchmarks/c/float-newlib/float_req_bl_0610.c[3190,3203] [2021-10-21 20:10:31,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:10:31,284 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:10:31,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:31 WrapperNode [2021-10-21 20:10:31,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:10:31,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:10:31,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:10:31,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:10:31,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:31" (1/1) ... [2021-10-21 20:10:31,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:31" (1/1) ... [2021-10-21 20:10:31,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:10:31,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:10:31,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:10:31,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:10:31,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:31" (1/1) ... [2021-10-21 20:10:31,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:31" (1/1) ... [2021-10-21 20:10:31,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:31" (1/1) ... [2021-10-21 20:10:31,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:31" (1/1) ... [2021-10-21 20:10:31,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:31" (1/1) ... [2021-10-21 20:10:31,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:31" (1/1) ... [2021-10-21 20:10:31,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:31" (1/1) ... [2021-10-21 20:10:31,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:10:31,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:10:31,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:10:31,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:10:31,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:31" (1/1) ... [2021-10-21 20:10:31,503 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:10:31,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:10:31,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:10:31,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:10:31,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-21 20:10:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 20:10:31,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:10:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-21 20:10:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-21 20:10:31,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:10:31,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:10:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-21 20:10:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-21 20:10:31,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:10:44,012 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:10:44,013 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-21 20:10:44,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:10:44 BoogieIcfgContainer [2021-10-21 20:10:44,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:10:44,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:10:44,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:10:44,022 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:10:44,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:10:30" (1/3) ... [2021-10-21 20:10:44,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6361e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:10:44, skipping insertion in model container [2021-10-21 20:10:44,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:10:31" (2/3) ... [2021-10-21 20:10:44,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6361e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:10:44, skipping insertion in model container [2021-10-21 20:10:44,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:10:44" (3/3) ... [2021-10-21 20:10:44,026 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2021-10-21 20:10:44,033 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:10:44,033 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:10:44,093 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:10:44,101 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 20:10:44,101 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 20:10:44,118 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:10:44,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 20:10:44,125 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:10:44,126 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:10:44,126 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:10:44,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:10:44,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2021-10-21 20:10:44,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:10:44,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251738041] [2021-10-21 20:10:44,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:10:44,151 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:10:44,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:10:44,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:10:44,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 20:10:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:10:45,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-21 20:10:45,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:10:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:10:45,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:10:45,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:10:45,470 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:10:45,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251738041] [2021-10-21 20:10:45,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [251738041] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:10:45,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:10:45,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 20:10:45,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251396351] [2021-10-21 20:10:45,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 20:10:45,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:10:45,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 20:10:45,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:10:45,501 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:10:45,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:10:45,522 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2021-10-21 20:10:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:10:45,524 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-21 20:10:45,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:10:45,535 INFO L225 Difference]: With dead ends: 64 [2021-10-21 20:10:45,535 INFO L226 Difference]: Without dead ends: 30 [2021-10-21 20:10:45,539 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:10:45,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-21 20:10:45,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-21 20:10:45,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:10:45,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2021-10-21 20:10:45,595 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2021-10-21 20:10:45,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:10:45,596 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-10-21 20:10:45,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:10:45,596 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2021-10-21 20:10:45,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-21 20:10:45,598 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:10:45,598 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:10:45,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:10:45,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:10:45,822 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:10:45,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:10:45,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2021-10-21 20:10:45,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:10:45,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147157565] [2021-10-21 20:10:45,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:10:45,825 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:10:45,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:10:45,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:10:45,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 20:10:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:10:46,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-21 20:10:46,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:10:47,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:10:47,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:10:49,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:10:49,107 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:10:49,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147157565] [2021-10-21 20:10:49,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147157565] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:10:49,108 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:10:49,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-21 20:10:49,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498580109] [2021-10-21 20:10:49,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-21 20:10:49,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:10:49,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-21 20:10:49,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-21 20:10:49,114 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:05,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:11:05,068 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2021-10-21 20:11:05,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:11:05,119 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-21 20:11:05,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:11:05,121 INFO L225 Difference]: With dead ends: 45 [2021-10-21 20:11:05,121 INFO L226 Difference]: Without dead ends: 37 [2021-10-21 20:11:05,122 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1451.2ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-21 20:11:05,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-21 20:11:05,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2021-10-21 20:11:05,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:05,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2021-10-21 20:11:05,129 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 11 [2021-10-21 20:11:05,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:11:05,129 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-10-21 20:11:05,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:05,130 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2021-10-21 20:11:05,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 20:11:05,131 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:11:05,131 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:11:05,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:05,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:11:05,332 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:11:05,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:11:05,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1812830160, now seen corresponding path program 1 times [2021-10-21 20:11:05,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:11:05,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976068762] [2021-10-21 20:11:05,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:11:05,335 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:11:05,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:11:05,344 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:11:05,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 20:11:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:11:06,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-21 20:11:06,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:11:07,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:07,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:11:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:11:07,774 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:11:07,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976068762] [2021-10-21 20:11:07,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976068762] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:11:07,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:11:07,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 9 [2021-10-21 20:11:07,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506645769] [2021-10-21 20:11:07,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 20:11:07,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:11:07,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 20:11:07,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-21 20:11:07,778 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:08,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:11:08,228 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2021-10-21 20:11:08,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:11:08,232 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-21 20:11:08,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:11:08,232 INFO L225 Difference]: With dead ends: 30 [2021-10-21 20:11:08,232 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 20:11:08,233 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1065.7ms TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-10-21 20:11:08,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 20:11:08,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 20:11:08,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:08,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 20:11:08,240 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-21 20:11:08,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:11:08,240 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:11:08,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:11:08,241 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:11:08,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 20:11:08,243 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:11:08,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:11:08,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:11:08,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 20:11:08,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:11:08,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:11:08,501 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:11:08,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:11:08,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:11:08,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 20:11:08,806 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-21 20:11:08,806 INFO L857 garLoopResultBuilder]: For program point L93-2(lines 76 101) no Hoare annotation was computed. [2021-10-21 20:11:08,806 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-10-21 20:11:08,807 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2021-10-21 20:11:08,807 INFO L857 garLoopResultBuilder]: For program point L118-2(line 118) no Hoare annotation was computed. [2021-10-21 20:11:08,807 INFO L853 garLoopResultBuilder]: At program point L118-3(lines 58 120) the Hoare annotation is: (and (= |ULTIMATE.start_atan_float_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start_atan_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-21 20:11:08,807 INFO L857 garLoopResultBuilder]: For program point L77(lines 77 80) no Hoare annotation was computed. [2021-10-21 20:11:08,808 INFO L857 garLoopResultBuilder]: For program point L77-2(lines 77 80) no Hoare annotation was computed. [2021-10-21 20:11:08,808 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 70) no Hoare annotation was computed. [2021-10-21 20:11:08,808 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 20:11:08,808 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 20:11:08,808 INFO L857 garLoopResultBuilder]: For program point L78(lines 78 79) no Hoare annotation was computed. [2021-10-21 20:11:08,809 INFO L857 garLoopResultBuilder]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2021-10-21 20:11:08,809 INFO L853 garLoopResultBuilder]: At program point L62-2(lines 62 66) the Hoare annotation is: (and (= ULTIMATE.start_atan_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-21 20:11:08,809 INFO L857 garLoopResultBuilder]: For program point L62-3(lines 62 66) no Hoare annotation was computed. [2021-10-21 20:11:08,809 INFO L857 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-10-21 20:11:08,809 INFO L853 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2021-10-21 20:11:08,810 INFO L857 garLoopResultBuilder]: For program point L71(lines 71 74) no Hoare annotation was computed. [2021-10-21 20:11:08,810 INFO L860 garLoopResultBuilder]: At program point L138(lines 122 139) the Hoare annotation is: true [2021-10-21 20:11:08,810 INFO L853 garLoopResultBuilder]: At program point L31(lines 19 32) the Hoare annotation is: false [2021-10-21 20:11:08,810 INFO L857 garLoopResultBuilder]: For program point L114(lines 114 119) no Hoare annotation was computed. [2021-10-21 20:11:08,810 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 20:11:08,811 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 134) no Hoare annotation was computed. [2021-10-21 20:11:08,811 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 20:11:08,811 INFO L853 garLoopResultBuilder]: At program point L17(line 17) the Hoare annotation is: (and (= |ULTIMATE.start_atan_float_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start_atan_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2021-10-21 20:11:08,811 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 136) no Hoare annotation was computed. [2021-10-21 20:11:08,811 INFO L857 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-10-21 20:11:08,812 INFO L857 garLoopResultBuilder]: For program point L26-1(lines 19 32) no Hoare annotation was computed. [2021-10-21 20:11:08,812 INFO L857 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-10-21 20:11:08,812 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 100) no Hoare annotation was computed. [2021-10-21 20:11:08,812 INFO L857 garLoopResultBuilder]: For program point L76(lines 76 101) no Hoare annotation was computed. [2021-10-21 20:11:08,812 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-21 20:11:08,812 INFO L857 garLoopResultBuilder]: For program point L68(lines 68 75) no Hoare annotation was computed. [2021-10-21 20:11:08,819 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:11:08,828 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,830 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,830 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,830 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,835 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,836 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,836 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,836 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,837 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,838 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,838 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,838 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,839 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,839 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,839 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,840 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,840 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,841 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:11:08 BoogieIcfgContainer [2021-10-21 20:11:08,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:11:08,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:11:08,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:11:08,843 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:11:08,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:10:44" (3/4) ... [2021-10-21 20:11:08,847 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 20:11:08,862 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-21 20:11:08,863 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-21 20:11:08,863 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:11:08,864 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 20:11:08,895 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-21 20:11:08,897 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2021-10-21 20:11:08,933 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:11:08,933 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:11:08,935 INFO L168 Benchmark]: Toolchain (without parser) took 38169.28 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 36.9 MB in the beginning and 48.4 MB in the end (delta: -11.6 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:08,935 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 58.7 MB. Free memory is still 39.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:11:08,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 520.03 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 36.7 MB in the beginning and 60.6 MB in the end (delta: -24.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:08,936 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.93 ms. Allocated memory is still 79.7 MB. Free memory was 60.4 MB in the beginning and 58.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:08,937 INFO L168 Benchmark]: Boogie Preprocessor took 104.58 ms. Allocated memory is still 79.7 MB. Free memory was 58.2 MB in the beginning and 55.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:08,937 INFO L168 Benchmark]: RCFGBuilder took 12521.71 ms. Allocated memory is still 79.7 MB. Free memory was 55.9 MB in the beginning and 55.6 MB in the end (delta: 281.9 kB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:08,938 INFO L168 Benchmark]: TraceAbstraction took 24824.40 ms. Allocated memory is still 79.7 MB. Free memory was 55.3 MB in the beginning and 53.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 945.2 kB. Max. memory is 16.1 GB. [2021-10-21 20:11:08,938 INFO L168 Benchmark]: Witness Printer took 90.43 ms. Allocated memory is still 79.7 MB. Free memory was 53.2 MB in the beginning and 48.4 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:11:08,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 58.7 MB. Free memory is still 39.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 520.03 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 36.7 MB in the beginning and 60.6 MB in the end (delta: -24.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.93 ms. Allocated memory is still 79.7 MB. Free memory was 60.4 MB in the beginning and 58.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 104.58 ms. Allocated memory is still 79.7 MB. Free memory was 58.2 MB in the beginning and 55.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 12521.71 ms. Allocated memory is still 79.7 MB. Free memory was 55.9 MB in the beginning and 55.6 MB in the end (delta: 281.9 kB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 24824.40 ms. Allocated memory is still 79.7 MB. Free memory was 55.3 MB in the beginning and 53.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 945.2 kB. Max. memory is 16.1 GB. * Witness Printer took 90.43 ms. Allocated memory is still 79.7 MB. Free memory was 53.2 MB in the beginning and 48.4 MB in the end (delta: 4.7 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 134]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24727.4ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 13.7ms, AutomataDifference: 16524.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 360.8ms, InitialAbstractionConstructionTime: 12.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 71 SDtfs, 87 SDslu, 121 SDs, 0 SdLazy, 72 SolverSat, 3 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 15357.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2517.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 40.2ms AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 60 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 57.9ms HoareSimplificationTime, 6 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 294.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 94.6ms SsaConstructionTime, 2845.7ms SatisfiabilityAnalysisTime, 3895.2ms InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 6 QuantifiedInterpolants, 330 SizeOfPredicates, 17 NumberOfNonLiveVariables, 296 ConjunctsInSsa, 21 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant [2021-10-21 20:11:08,952 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,952 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,952 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,953 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,953 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,954 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,954 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,954 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 58]: Loop Invariant [2021-10-21 20:11:08,955 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,955 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,955 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,955 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,956 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,956 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,956 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,957 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 62]: Loop Invariant [2021-10-21 20:11:08,957 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-21 20:11:08,958 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-21 20:11:09,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72dd285c-6242-4c4e-b2c3-c860f3c04af2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...