./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6a2ce6cad1ff26c462bd542dafb3ac3798055daa ..................................................................................................................................................................................................................................................................................................................... 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_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6a2ce6cad1ff26c462bd542dafb3ac3798055daa ......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:26:55,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:55,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:55,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:55,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:55,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:55,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:55,398 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:55,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:55,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:55,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:55,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:55,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:55,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:55,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:55,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:55,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:55,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:55,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:55,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:55,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:55,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:55,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:55,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:55,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:55,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:55,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:55,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:55,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:55,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:55,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:55,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:55,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:55,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:55,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:55,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:55,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:55,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:55,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:55,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:55,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:55,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:26:55,513 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:55,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:55,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:55,515 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:55,515 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:55,516 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:55,516 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:26:55,516 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:55,522 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:55,523 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:26:55,524 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:26:55,524 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:55,524 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:26:55,524 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:26:55,525 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:26:55,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:55,526 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:55,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:26:55,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:55,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:55,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:55,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:55,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:55,527 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:55,527 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:55,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:55,527 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:55,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:55,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:55,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:55,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:55,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:55,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:55,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:55,529 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:26:55,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:26:55,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:55,530 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:55,530 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:55,530 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a2ce6cad1ff26c462bd542dafb3ac3798055daa [2021-10-11 02:26:55,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:55,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:55,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:55,860 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:55,861 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:55,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2021-10-11 02:26:55,937 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/data/a3d9352dd/c8708ec86ef74cf7aacbd7efbac03b58/FLAGa11083798 [2021-10-11 02:26:56,365 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:56,366 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2021-10-11 02:26:56,372 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/data/a3d9352dd/c8708ec86ef74cf7aacbd7efbac03b58/FLAGa11083798 [2021-10-11 02:26:56,762 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/data/a3d9352dd/c8708ec86ef74cf7aacbd7efbac03b58 [2021-10-11 02:26:56,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:56,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:56,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:56,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:56,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:56,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:56" (1/1) ... [2021-10-11 02:26:56,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57154b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:56, skipping insertion in model container [2021-10-11 02:26:56,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:56" (1/1) ... [2021-10-11 02:26:56,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:56,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:57,056 WARN L226 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_051e63df-b594-4f47-8def-3918fe5b1a47/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2021-10-11 02:26:57,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:57,074 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:26:57,122 WARN L226 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_051e63df-b594-4f47-8def-3918fe5b1a47/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2021-10-11 02:26:57,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:57,137 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:26:57,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:57 WrapperNode [2021-10-11 02:26:57,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:57,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:57,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:26:57,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:26:57,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:57" (1/1) ... [2021-10-11 02:26:57,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:57" (1/1) ... [2021-10-11 02:26:57,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:57,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:26:57,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:26:57,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:26:57,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:57" (1/1) ... [2021-10-11 02:26:57,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:57" (1/1) ... [2021-10-11 02:26:57,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:57" (1/1) ... [2021-10-11 02:26:57,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:57" (1/1) ... [2021-10-11 02:26:57,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:57" (1/1) ... [2021-10-11 02:26:57,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:57" (1/1) ... [2021-10-11 02:26:57,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:57" (1/1) ... [2021-10-11 02:26:57,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:26:57,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:26:57,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:26:57,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:26:57,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:57" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:26:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:26:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 02:26:57,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:26:57,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 02:26:57,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:26:57,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:26:57,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:26:57,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:26:57,821 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:26:57,821 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-11 02:26:57,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:57 BoogieIcfgContainer [2021-10-11 02:26:57,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:26:57,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:26:57,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:26:57,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:26:57,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:26:56" (1/3) ... [2021-10-11 02:26:57,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d248da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:57, skipping insertion in model container [2021-10-11 02:26:57,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:57" (2/3) ... [2021-10-11 02:26:57,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d248da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:57, skipping insertion in model container [2021-10-11 02:26:57,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:57" (3/3) ... [2021-10-11 02:26:57,832 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2021-10-11 02:26:57,846 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:26:57,850 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:26:57,861 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:26:57,885 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:26:57,885 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:26:57,885 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:26:57,885 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:26:57,886 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:26:57,886 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:26:57,886 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:26:57,886 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:26:57,900 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2021-10-11 02:26:57,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:26:57,910 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:57,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:57,911 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:57,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:57,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1945551752, now seen corresponding path program 1 times [2021-10-11 02:26:57,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:57,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926997323] [2021-10-11 02:26:57,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:58,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:58,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926997323] [2021-10-11 02:26:58,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:58,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:58,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752570558] [2021-10-11 02:26:58,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:26:58,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:26:58,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:26:58,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:26:58,082 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2021-10-11 02:26:58,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:58,100 INFO L93 Difference]: Finished difference Result 57 states and 91 transitions. [2021-10-11 02:26:58,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:26:58,102 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2021-10-11 02:26:58,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:58,111 INFO L225 Difference]: With dead ends: 57 [2021-10-11 02:26:58,112 INFO L226 Difference]: Without dead ends: 27 [2021-10-11 02:26:58,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:26:58,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-11 02:26:58,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-11 02:26:58,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-10-11 02:26:58,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2021-10-11 02:26:58,147 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 10 [2021-10-11 02:26:58,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:58,148 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2021-10-11 02:26:58,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:26:58,148 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2021-10-11 02:26:58,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:26:58,149 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:58,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:58,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:26:58,150 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:58,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:58,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1223456151, now seen corresponding path program 1 times [2021-10-11 02:26:58,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:26:58,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619536961] [2021-10-11 02:26:58,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:26:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:26:58,228 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:26:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:26:58,301 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:26:58,358 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:26:58,358 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:26:58,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:26:58,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:26:58 BoogieIcfgContainer [2021-10-11 02:26:58,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:26:58,427 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:26:58,427 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:26:58,428 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:26:58,428 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:57" (3/4) ... [2021-10-11 02:26:58,432 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:26:58,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:26:58,438 INFO L168 Benchmark]: Toolchain (without parser) took 1668.51 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.9 MB in the beginning and 81.2 MB in the end (delta: -30.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:58,438 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory was 67.0 MB in the beginning and 67.0 MB in the end (delta: 77.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:58,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.82 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.8 MB in the beginning and 81.1 MB in the end (delta: -30.3 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:58,441 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.97 ms. Allocated memory is still 104.9 MB. Free memory was 81.1 MB in the beginning and 79.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:58,442 INFO L168 Benchmark]: Boogie Preprocessor took 63.56 ms. Allocated memory is still 104.9 MB. Free memory was 79.3 MB in the beginning and 77.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:58,443 INFO L168 Benchmark]: RCFGBuilder took 577.13 ms. Allocated memory is still 104.9 MB. Free memory was 77.4 MB in the beginning and 76.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:58,444 INFO L168 Benchmark]: TraceAbstraction took 600.80 ms. Allocated memory is still 104.9 MB. Free memory was 75.9 MB in the beginning and 81.7 MB in the end (delta: -5.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:58,445 INFO L168 Benchmark]: Witness Printer took 6.04 ms. Allocated memory is still 104.9 MB. Free memory was 81.7 MB in the beginning and 81.2 MB in the end (delta: 530.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:58,458 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 86.0 MB. Free memory was 67.0 MB in the beginning and 67.0 MB in the end (delta: 77.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 369.82 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.8 MB in the beginning and 81.1 MB in the end (delta: -30.3 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.97 ms. Allocated memory is still 104.9 MB. Free memory was 81.1 MB in the beginning and 79.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.56 ms. Allocated memory is still 104.9 MB. Free memory was 79.3 MB in the beginning and 77.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 577.13 ms. Allocated memory is still 104.9 MB. Free memory was 77.4 MB in the beginning and 76.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 600.80 ms. Allocated memory is still 104.9 MB. Free memory was 75.9 MB in the beginning and 81.7 MB in the end (delta: -5.8 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. * Witness Printer took 6.04 ms. Allocated memory is still 104.9 MB. Free memory was 81.7 MB in the beginning and 81.2 MB in the end (delta: 530.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 88]: 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 75, overapproximation of someBinaryArithmeticFLOAToperation at line 82, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L13] static const float one_modf = 1.0; [L82] float x = 0.0f / 0.0f; [L83] float iptr; [L16] __int32_t i0, j0; [L17] __uint32_t i; VAL [one_modf=1] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [one_modf=1] [L24] COND TRUE j0 < 23 VAL [one_modf=1] [L25] COND TRUE j0 < 0 VAL [one_modf=1] [L27] ieee_float_shape_type sf_u; [L28] sf_u.word = (i0 & 0x80000000) [L29] EXPR sf_u.value [L29] (*iptr) = sf_u.value [L31] return x; VAL [one_modf=1] [L84] float res = modf_float(x, &iptr); [L87] EXPR \read(iptr) [L75] return x != x; [L87] isnan_float(iptr) && !isnan_float(res) [L75] return x != x; [L87] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1] [L87] COND TRUE isnan_float(iptr) && !isnan_float(res) [L88] reach_error() VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 31 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:27:01,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:01,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:01,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:01,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:01,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:01,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:01,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:01,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:01,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:01,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:01,089 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:01,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:01,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:01,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:01,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:01,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:01,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:01,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:01,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:01,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:01,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:01,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:01,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:01,122 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:01,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:01,123 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:01,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:01,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:01,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:01,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:01,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:01,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:01,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:01,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:01,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:01,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:01,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:01,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:01,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:01,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:01,143 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:27:01,182 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:01,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:01,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:01,184 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:01,184 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:01,184 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:01,185 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:01,185 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:01,185 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:01,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:01,187 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:01,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:01,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:01,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:27:01,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:01,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:27:01,189 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:01,189 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:27:01,189 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:27:01,189 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:01,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:27:01,189 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:01,190 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:27:01,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:01,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:27:01,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:01,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:01,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:01,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:01,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:27:01,191 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:27:01,191 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:27:01,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:27:01,192 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:01,192 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:01,192 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_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a2ce6cad1ff26c462bd542dafb3ac3798055daa [2021-10-11 02:27:01,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:01,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:01,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:01,594 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:01,597 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:01,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2021-10-11 02:27:01,682 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/data/3f9cc9ef5/66127d451e944cd0b6922464933f0184/FLAG672e92612 [2021-10-11 02:27:02,268 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:02,268 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2021-10-11 02:27:02,279 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/data/3f9cc9ef5/66127d451e944cd0b6922464933f0184/FLAG672e92612 [2021-10-11 02:27:02,625 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/data/3f9cc9ef5/66127d451e944cd0b6922464933f0184 [2021-10-11 02:27:02,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:02,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:02,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:02,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:02,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:02,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:02" (1/1) ... [2021-10-11 02:27:02,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d6b896a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:02, skipping insertion in model container [2021-10-11 02:27:02,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:02" (1/1) ... [2021-10-11 02:27:02,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:02,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:02,838 WARN L226 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_051e63df-b594-4f47-8def-3918fe5b1a47/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2021-10-11 02:27:02,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:02,856 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:02,898 WARN L226 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_051e63df-b594-4f47-8def-3918fe5b1a47/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2021-10-11 02:27:02,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:02,931 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:02,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:02 WrapperNode [2021-10-11 02:27:02,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:02,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:02,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:02,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:02,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:02" (1/1) ... [2021-10-11 02:27:02,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:02" (1/1) ... [2021-10-11 02:27:03,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:03,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:03,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:03,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:03,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:02" (1/1) ... [2021-10-11 02:27:03,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:02" (1/1) ... [2021-10-11 02:27:03,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:02" (1/1) ... [2021-10-11 02:27:03,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:02" (1/1) ... [2021-10-11 02:27:03,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:02" (1/1) ... [2021-10-11 02:27:03,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:02" (1/1) ... [2021-10-11 02:27:03,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:02" (1/1) ... [2021-10-11 02:27:03,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:03,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:03,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:03,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:03,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:02" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:27:03,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:03,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-11 02:27:03,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:27:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-11 02:27:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:27:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:27:04,309 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:04,309 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-11 02:27:04,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:04 BoogieIcfgContainer [2021-10-11 02:27:04,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:04,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:04,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:04,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:04,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:02" (1/3) ... [2021-10-11 02:27:04,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4461c06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:04, skipping insertion in model container [2021-10-11 02:27:04,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:02" (2/3) ... [2021-10-11 02:27:04,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4461c06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:04, skipping insertion in model container [2021-10-11 02:27:04,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:04" (3/3) ... [2021-10-11 02:27:04,320 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2021-10-11 02:27:04,345 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:04,348 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:27:04,356 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:27:04,381 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:04,381 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:27:04,381 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:04,381 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:04,381 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:04,381 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:04,381 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:04,382 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:04,395 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2021-10-11 02:27:04,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:27:04,400 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:04,401 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:04,401 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:04,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:04,406 INFO L82 PathProgramCache]: Analyzing trace with hash -556426464, now seen corresponding path program 1 times [2021-10-11 02:27:04,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:04,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [976774874] [2021-10-11 02:27:04,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:04,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:27:04,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:04,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:04,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:04,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [976774874] [2021-10-11 02:27:04,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:04,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:27:04,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311538680] [2021-10-11 02:27:04,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:27:04,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:04,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:27:04,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:27:04,744 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2021-10-11 02:27:04,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:04,770 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2021-10-11 02:27:04,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:27:04,771 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2021-10-11 02:27:04,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:04,783 INFO L225 Difference]: With dead ends: 66 [2021-10-11 02:27:04,783 INFO L226 Difference]: Without dead ends: 31 [2021-10-11 02:27:04,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:27:04,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-11 02:27:04,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-11 02:27:04,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-10-11 02:27:04,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2021-10-11 02:27:04,825 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 13 [2021-10-11 02:27:04,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:04,826 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2021-10-11 02:27:04,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:27:04,826 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2021-10-11 02:27:04,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:27:04,827 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:04,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:05,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:27:05,047 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:05,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:05,050 INFO L82 PathProgramCache]: Analyzing trace with hash -56818241, now seen corresponding path program 1 times [2021-10-11 02:27:05,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:05,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082059640] [2021-10-11 02:27:05,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:05,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 02:27:05,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:05,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:05,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:05,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082059640] [2021-10-11 02:27:05,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:05,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:27:05,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711741314] [2021-10-11 02:27:05,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:27:05,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:05,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:27:05,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:27:05,422 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 5 states. [2021-10-11 02:27:05,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:05,877 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2021-10-11 02:27:05,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:27:05,878 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-10-11 02:27:05,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:05,879 INFO L225 Difference]: With dead ends: 38 [2021-10-11 02:27:05,879 INFO L226 Difference]: Without dead ends: 18 [2021-10-11 02:27:05,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:27:05,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-11 02:27:05,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-11 02:27:05,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 02:27:05,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-10-11 02:27:05,885 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2021-10-11 02:27:05,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:05,886 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-10-11 02:27:05,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:27:05,886 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-10-11 02:27:05,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:27:05,886 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:05,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:06,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:27:06,103 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:06,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:06,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1951048762, now seen corresponding path program 1 times [2021-10-11 02:27:06,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:06,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299090387] [2021-10-11 02:27:06,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:06,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:27:06,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:06,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:06,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:06,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299090387] [2021-10-11 02:27:06,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:06,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:27:06,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680972120] [2021-10-11 02:27:06,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:27:06,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:06,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:27:06,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:06,386 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2021-10-11 02:27:06,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:06,415 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2021-10-11 02:27:06,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:27:06,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2021-10-11 02:27:06,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:06,417 INFO L225 Difference]: With dead ends: 21 [2021-10-11 02:27:06,417 INFO L226 Difference]: Without dead ends: 18 [2021-10-11 02:27:06,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:06,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-11 02:27:06,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-11 02:27:06,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 02:27:06,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2021-10-11 02:27:06,422 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2021-10-11 02:27:06,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:06,422 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2021-10-11 02:27:06,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:27:06,423 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2021-10-11 02:27:06,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:27:06,423 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:06,423 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:06,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:27:06,642 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:06,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:06,642 INFO L82 PathProgramCache]: Analyzing trace with hash 352844637, now seen corresponding path program 1 times [2021-10-11 02:27:06,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:06,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1577193858] [2021-10-11 02:27:06,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:06,867 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:07,041 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:07,097 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:27:07,097 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:27:07,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:27:07,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:27:07 BoogieIcfgContainer [2021-10-11 02:27:07,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:27:07,350 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:27:07,350 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:27:07,350 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:27:07,351 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:04" (3/4) ... [2021-10-11 02:27:07,352 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:27:07,405 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_051e63df-b594-4f47-8def-3918fe5b1a47/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:27:07,406 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:27:07,407 INFO L168 Benchmark]: Toolchain (without parser) took 4776.99 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 40.9 MB in the beginning and 56.7 MB in the end (delta: -15.8 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:07,408 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 75.5 MB. Free memory was 57.4 MB in the beginning and 57.3 MB in the end (delta: 66.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:07,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.99 ms. Allocated memory is still 75.5 MB. Free memory was 40.8 MB in the beginning and 51.4 MB in the end (delta: -10.6 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:07,409 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.39 ms. Allocated memory is still 75.5 MB. Free memory was 51.2 MB in the beginning and 59.6 MB in the end (delta: -8.4 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:07,410 INFO L168 Benchmark]: Boogie Preprocessor took 68.28 ms. Allocated memory is still 75.5 MB. Free memory was 59.6 MB in the beginning and 57.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:07,411 INFO L168 Benchmark]: RCFGBuilder took 1220.34 ms. Allocated memory is still 75.5 MB. Free memory was 57.8 MB in the beginning and 35.1 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:07,411 INFO L168 Benchmark]: TraceAbstraction took 3036.39 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 34.7 MB in the beginning and 59.5 MB in the end (delta: -24.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:07,412 INFO L168 Benchmark]: Witness Printer took 56.02 ms. Allocated memory is still 94.4 MB. Free memory was 59.5 MB in the beginning and 56.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:07,416 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 75.5 MB. Free memory was 57.4 MB in the beginning and 57.3 MB in the end (delta: 66.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 301.99 ms. Allocated memory is still 75.5 MB. Free memory was 40.8 MB in the beginning and 51.4 MB in the end (delta: -10.6 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.39 ms. Allocated memory is still 75.5 MB. Free memory was 51.2 MB in the beginning and 59.6 MB in the end (delta: -8.4 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.28 ms. Allocated memory is still 75.5 MB. Free memory was 59.6 MB in the beginning and 57.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1220.34 ms. Allocated memory is still 75.5 MB. Free memory was 57.8 MB in the beginning and 35.1 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3036.39 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 34.7 MB in the beginning and 59.5 MB in the end (delta: -24.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 56.02 ms. Allocated memory is still 94.4 MB. Free memory was 59.5 MB in the beginning and 56.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 88]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L13] static const float one_modf = 1.0; VAL [one_modf=1.0] [L82] float x = 0.0f / 0.0f; [L83] float iptr; [L16] __int32_t i0, j0; [L17] __uint32_t i; VAL [one_modf=1.0] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [one_modf=1.0] [L24] COND FALSE !(j0 < 23) [L58] __uint32_t ix; [L59] *iptr = x * one_modf VAL [one_modf=1.0] [L61] ieee_float_shape_type gf_u; [L62] gf_u.value = (x) [L63] EXPR gf_u.word [L63] (ix) = gf_u.word [L66] ieee_float_shape_type sf_u; [L67] sf_u.word = (ix & 0x80000000) [L68] EXPR sf_u.value [L68] (x) = sf_u.value [L70] return x; VAL [one_modf=1.0] [L84] float res = modf_float(x, &iptr); [L87] EXPR \read(iptr) [L75] return x != x; VAL [one_modf=1.0] [L87] isnan_float(iptr) && !isnan_float(res) [L75] return x != x; VAL [one_modf=1.0] [L87] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1.0] [L87] COND TRUE isnan_float(iptr) && !isnan_float(res) [L88] reach_error() VAL [one_modf=1.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 33 SDslu, 24 SDs, 0 SdLazy, 14 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 4 QuantifiedInterpolants, 1308 SizeOfPredicates, 7 NumberOfNonLiveVariables, 198 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...