./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.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_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/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_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/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_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/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 9192ebbb056e27a8831cb8246a8c32082898b28d .......................................................................................................................................................................................................................................................................................................... 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_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/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_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/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_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/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 9192ebbb056e27a8831cb8246a8c32082898b28d ................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:55,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:55,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:55,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:55,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:55,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:55,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:55,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:55,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:55,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:55,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:55,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:55,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:55,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:55,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:55,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:55,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:55,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:55,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:55,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:55,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:55,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:55,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:55,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:55,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:55,478 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:55,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:55,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:55,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:55,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:55,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:55,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:55,487 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:55,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:55,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:55,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:55,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:55,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:55,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:55,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:55,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:55,495 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:32:55,536 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:55,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:55,538 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:55,538 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:55,538 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:55,539 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:55,539 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:32:55,539 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:55,546 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:55,546 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:32:55,547 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:32:55,547 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:55,548 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:32:55,548 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:32:55,548 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:32:55,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:55,549 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:55,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:32:55,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:55,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:55,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:55,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:55,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:55,551 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:55,551 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:55,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:55,552 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:55,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:55,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:55,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:55,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:55,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:55,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:55,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:55,554 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:32:55,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:32:55,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:55,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:55,555 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:55,555 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_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9192ebbb056e27a8831cb8246a8c32082898b28d [2021-10-11 02:32:55,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:55,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:55,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:55,837 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:55,839 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:55,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2021-10-11 02:32:55,911 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/data/59e5cd027/f4479ce5ec184d0dbc2c7628d54e29d2/FLAG8e3edaa2a [2021-10-11 02:32:56,365 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:56,369 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2021-10-11 02:32:56,375 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/data/59e5cd027/f4479ce5ec184d0dbc2c7628d54e29d2/FLAG8e3edaa2a [2021-10-11 02:32:56,726 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/data/59e5cd027/f4479ce5ec184d0dbc2c7628d54e29d2 [2021-10-11 02:32:56,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:56,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:56,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:56,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:56,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:56,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:56" (1/1) ... [2021-10-11 02:32:56,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff244f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:56, skipping insertion in model container [2021-10-11 02:32:56,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:56" (1/1) ... [2021-10-11 02:32:56,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:56,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:56,937 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_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/sv-benchmarks/c/float-newlib/float_req_bl_1051.c[1637,1650] [2021-10-11 02:32:56,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:56,954 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:56,977 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_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/sv-benchmarks/c/float-newlib/float_req_bl_1051.c[1637,1650] [2021-10-11 02:32:56,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:56,993 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:56,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:56 WrapperNode [2021-10-11 02:32:56,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:56,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:56,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:56,995 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:57,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:56" (1/1) ... [2021-10-11 02:32:57,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:56" (1/1) ... [2021-10-11 02:32:57,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:57,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:57,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:57,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:57,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:56" (1/1) ... [2021-10-11 02:32:57,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:56" (1/1) ... [2021-10-11 02:32:57,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:56" (1/1) ... [2021-10-11 02:32:57,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:56" (1/1) ... [2021-10-11 02:32:57,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:56" (1/1) ... [2021-10-11 02:32:57,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:56" (1/1) ... [2021-10-11 02:32:57,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:56" (1/1) ... [2021-10-11 02:32:57,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:57,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:57,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:57,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:57,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:56" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/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 02:32:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:32:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 02:32:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:32:57,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 02:32:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:57,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:32:57,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:32:57,599 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:57,600 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-11 02:32:57,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:57 BoogieIcfgContainer [2021-10-11 02:32:57,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:57,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:57,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:57,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:57,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:56" (1/3) ... [2021-10-11 02:32:57,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20538a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:57, skipping insertion in model container [2021-10-11 02:32:57,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:56" (2/3) ... [2021-10-11 02:32:57,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20538a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:57, skipping insertion in model container [2021-10-11 02:32:57,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:57" (3/3) ... [2021-10-11 02:32:57,621 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2021-10-11 02:32:57,646 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:57,649 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:32:57,661 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:32:57,686 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:57,686 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:32:57,686 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:57,686 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:57,686 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:57,687 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:57,687 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:57,687 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:57,700 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2021-10-11 02:32:57,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:32:57,705 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:57,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:57,706 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:57,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:57,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1229350991, now seen corresponding path program 1 times [2021-10-11 02:32:57,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:57,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178641269] [2021-10-11 02:32:57,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:57,846 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 02:32:57,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178641269] [2021-10-11 02:32:57,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:57,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:57,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086420396] [2021-10-11 02:32:57,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:32:57,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:57,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:32:57,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:32:57,869 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2021-10-11 02:32:57,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:57,884 INFO L93 Difference]: Finished difference Result 31 states and 45 transitions. [2021-10-11 02:32:57,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:32:57,885 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2021-10-11 02:32:57,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:57,894 INFO L225 Difference]: With dead ends: 31 [2021-10-11 02:32:57,894 INFO L226 Difference]: Without dead ends: 14 [2021-10-11 02:32:57,897 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 02:32:57,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-10-11 02:32:57,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-11 02:32:57,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-11 02:32:57,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-10-11 02:32:57,928 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 7 [2021-10-11 02:32:57,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:57,928 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-10-11 02:32:57,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:32:57,928 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-10-11 02:32:57,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:32:57,929 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:57,929 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:57,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:32:57,930 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:57,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:57,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1601340958, now seen corresponding path program 1 times [2021-10-11 02:32:57,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:57,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981297071] [2021-10-11 02:32:57,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:58,051 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:58,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:58,151 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:58,184 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:32:58,184 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:32:58,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:32:58,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:58 BoogieIcfgContainer [2021-10-11 02:32:58,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:58,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:58,224 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:58,224 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:58,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:57" (3/4) ... [2021-10-11 02:32:58,229 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:32:58,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:58,234 INFO L168 Benchmark]: Toolchain (without parser) took 1500.14 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 67.1 MB in the beginning and 73.6 MB in the end (delta: -6.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:58,235 INFO L168 Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 98.6 MB. Free memory is still 52.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:58,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.81 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 66.9 MB in the beginning and 93.9 MB in the end (delta: -27.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:58,238 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.68 ms. Allocated memory is still 119.5 MB. Free memory was 93.9 MB in the beginning and 92.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:58,239 INFO L168 Benchmark]: Boogie Preprocessor took 53.19 ms. Allocated memory is still 119.5 MB. Free memory was 92.3 MB in the beginning and 91.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:58,240 INFO L168 Benchmark]: RCFGBuilder took 525.17 ms. Allocated memory is still 119.5 MB. Free memory was 91.1 MB in the beginning and 64.2 MB in the end (delta: 26.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:58,241 INFO L168 Benchmark]: TraceAbstraction took 612.93 ms. Allocated memory is still 119.5 MB. Free memory was 63.8 MB in the beginning and 74.2 MB in the end (delta: -10.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:58,243 INFO L168 Benchmark]: Witness Printer took 7.18 ms. Allocated memory is still 119.5 MB. Free memory was 74.2 MB in the beginning and 73.6 MB in the end (delta: 594.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:58,252 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 ms. Allocated memory is still 98.6 MB. Free memory is still 52.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 261.81 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 66.9 MB in the beginning and 93.9 MB in the end (delta: -27.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.68 ms. Allocated memory is still 119.5 MB. Free memory was 93.9 MB in the beginning and 92.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.19 ms. Allocated memory is still 119.5 MB. Free memory was 92.3 MB in the beginning and 91.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 525.17 ms. Allocated memory is still 119.5 MB. Free memory was 91.1 MB in the beginning and 64.2 MB in the end (delta: 26.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 612.93 ms. Allocated memory is still 119.5 MB. Free memory was 63.8 MB in the beginning and 74.2 MB in the end (delta: -10.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.18 ms. Allocated memory is still 119.5 MB. Free memory was 74.2 MB in the beginning and 73.6 MB in the end (delta: 594.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 73]: 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 60, overapproximation of someBinaryArithmeticFLOAToperation at line 47, overapproximation of bitwiseAnd at line 24. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L68] float x = 0.0f / 0.0f; [L17] __int32_t i0, j0; [L18] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (i0) = gf_u.word [L24] ix = (i0 & 0x7fffffff) [L25] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L26] COND FALSE !(j0 < 23) [L46] COND TRUE !((ix) < 0x7f800000L) [L47] return x + x; VAL [huge_floor=1000000000000000000000000000000] [L69] float res = floor_float(x); [L60] return x != x; [L72] COND TRUE !isnan_float(res) [L73] reach_error() VAL [huge_floor=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 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=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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 02:33:00,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:33:00,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:33:00,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:33:00,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:33:00,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:33:00,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:33:00,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:33:00,819 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:33:00,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:33:00,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:33:00,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:33:00,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:33:00,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:33:00,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:33:00,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:33:00,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:33:00,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:33:00,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:33:00,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:33:00,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:33:00,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:33:00,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:33:00,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:33:00,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:33:00,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:33:00,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:33:00,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:33:00,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:33:00,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:33:00,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:33:00,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:33:00,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:33:00,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:33:00,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:33:00,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:33:00,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:33:00,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:33:00,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:33:00,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:33:00,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:33:00,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:33:00,938 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:33:00,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:33:00,940 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:33:00,940 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:33:00,941 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:33:00,941 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:33:00,941 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:33:00,941 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:33:00,941 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:33:00,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:33:00,944 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:33:00,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:33:00,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:33:00,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:33:00,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:33:00,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:33:00,946 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:33:00,946 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:33:00,946 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:33:00,946 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:33:00,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:33:00,947 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:33:00,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:33:00,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:33:00,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:33:00,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:33:00,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:33:00,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:33:00,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:33:00,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:33:00,949 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:33:00,949 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:33:00,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:33:00,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:33:00,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:33:00,950 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_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9192ebbb056e27a8831cb8246a8c32082898b28d [2021-10-11 02:33:01,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:33:01,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:33:01,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:33:01,359 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:33:01,360 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:33:01,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2021-10-11 02:33:01,442 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/data/6e95fbe61/5ca10a3021c243088245fde300d324c0/FLAG288b7a610 [2021-10-11 02:33:02,000 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:33:02,004 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2021-10-11 02:33:02,012 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/data/6e95fbe61/5ca10a3021c243088245fde300d324c0/FLAG288b7a610 [2021-10-11 02:33:02,344 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/data/6e95fbe61/5ca10a3021c243088245fde300d324c0 [2021-10-11 02:33:02,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:33:02,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:33:02,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:33:02,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:33:02,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:33:02,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:33:02" (1/1) ... [2021-10-11 02:33:02,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51b53819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:02, skipping insertion in model container [2021-10-11 02:33:02,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:33:02" (1/1) ... [2021-10-11 02:33:02,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:33:02,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:33:02,570 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_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/sv-benchmarks/c/float-newlib/float_req_bl_1051.c[1637,1650] [2021-10-11 02:33:02,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:33:02,607 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:33:02,677 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_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/sv-benchmarks/c/float-newlib/float_req_bl_1051.c[1637,1650] [2021-10-11 02:33:02,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:33:02,702 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:33:02,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:02 WrapperNode [2021-10-11 02:33:02,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:33:02,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:33:02,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:33:02,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:33:02,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:02" (1/1) ... [2021-10-11 02:33:02,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:02" (1/1) ... [2021-10-11 02:33:02,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:33:02,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:33:02,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:33:02,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:33:02,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:02" (1/1) ... [2021-10-11 02:33:02,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:02" (1/1) ... [2021-10-11 02:33:02,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:02" (1/1) ... [2021-10-11 02:33:02,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:02" (1/1) ... [2021-10-11 02:33:02,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:02" (1/1) ... [2021-10-11 02:33:02,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:02" (1/1) ... [2021-10-11 02:33:02,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:02" (1/1) ... [2021-10-11 02:33:02,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:33:02,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:33:02,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:33:02,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:33:02,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:02" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/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 02:33:02,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:33:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:33:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-11 02:33:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:33:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:33:02,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:33:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-11 02:33:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:33:02,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:33:03,885 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:33:03,885 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-11 02:33:03,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:03 BoogieIcfgContainer [2021-10-11 02:33:03,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:33:03,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:33:03,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:33:03,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:33:03,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:33:02" (1/3) ... [2021-10-11 02:33:03,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d3c416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:33:03, skipping insertion in model container [2021-10-11 02:33:03,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:33:02" (2/3) ... [2021-10-11 02:33:03,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d3c416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:33:03, skipping insertion in model container [2021-10-11 02:33:03,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:03" (3/3) ... [2021-10-11 02:33:03,896 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2021-10-11 02:33:03,909 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:33:03,913 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:33:03,925 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:33:03,960 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:33:03,963 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:33:03,963 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:33:03,963 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:33:03,963 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:33:03,964 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:33:03,964 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:33:03,964 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:33:03,982 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2021-10-11 02:33:03,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:33:03,989 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:03,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:03,990 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:03,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:03,997 INFO L82 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2021-10-11 02:33:04,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:04,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605594233] [2021-10-11 02:33:04,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/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 02:33:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:04,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:33:04,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:04,222 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 02:33:04,222 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:04,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605594233] [2021-10-11 02:33:04,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:04,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:33:04,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791111743] [2021-10-11 02:33:04,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:33:04,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:04,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:33:04,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:33:04,248 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2021-10-11 02:33:04,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:04,268 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2021-10-11 02:33:04,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:33:04,270 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2021-10-11 02:33:04,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:04,281 INFO L225 Difference]: With dead ends: 50 [2021-10-11 02:33:04,281 INFO L226 Difference]: Without dead ends: 23 [2021-10-11 02:33:04,285 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 02:33:04,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-11 02:33:04,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-11 02:33:04,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 02:33:04,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2021-10-11 02:33:04,323 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2021-10-11 02:33:04,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:04,323 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2021-10-11 02:33:04,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:33:04,324 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2021-10-11 02:33:04,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:33:04,325 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:04,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:04,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:33:04,544 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:04,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:04,545 INFO L82 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2021-10-11 02:33:04,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:04,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317585146] [2021-10-11 02:33:04,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/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 02:33:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:04,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 02:33:04,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:04,889 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 02:33:04,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:04,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317585146] [2021-10-11 02:33:04,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:04,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:33:04,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649235672] [2021-10-11 02:33:04,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:33:04,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:04,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:33:04,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:33:04,904 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand 6 states. [2021-10-11 02:33:05,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:05,604 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2021-10-11 02:33:05,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:33:05,606 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2021-10-11 02:33:05,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:05,608 INFO L225 Difference]: With dead ends: 34 [2021-10-11 02:33:05,610 INFO L226 Difference]: Without dead ends: 18 [2021-10-11 02:33:05,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:33:05,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-11 02:33:05,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-11 02:33:05,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 02:33:05,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-10-11 02:33:05,618 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2021-10-11 02:33:05,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:05,618 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-10-11 02:33:05,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:33:05,618 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-10-11 02:33:05,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:33:05,619 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:05,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:05,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:33:05,820 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:05,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:05,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1612289523, now seen corresponding path program 1 times [2021-10-11 02:33:05,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:05,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915909105] [2021-10-11 02:33:05,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/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 02:33:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:05,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 02:33:05,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:06,143 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 02:33:06,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:06,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915909105] [2021-10-11 02:33:06,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:06,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:33:06,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654892195] [2021-10-11 02:33:06,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:33:06,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:06,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:33:06,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:33:06,147 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2021-10-11 02:33:06,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:06,313 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-10-11 02:33:06,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:33:06,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-10-11 02:33:06,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:06,314 INFO L225 Difference]: With dead ends: 18 [2021-10-11 02:33:06,314 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:33:06,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:33:06,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:33:06,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:33:06,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:33:06,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:33:06,315 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-11 02:33:06,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:06,316 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:33:06,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:33:06,316 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:33:06,316 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:33:06,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:33:06,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:33:06,616 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-11 02:33:06,616 INFO L258 CegarLoopResult]: At program point L60(line 60) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) |ULTIMATE.start_floor_float_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_floor_float_~x))) [2021-10-11 02:33:06,616 INFO L262 CegarLoopResult]: For program point L27(lines 27 44) no Hoare annotation was computed. [2021-10-11 02:33:06,616 INFO L258 CegarLoopResult]: At program point L56(lines 16 57) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) |ULTIMATE.start_floor_float_#res|)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_floor_float_~x))) [2021-10-11 02:33:06,616 INFO L262 CegarLoopResult]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2021-10-11 02:33:06,617 INFO L258 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_floor_float_~x)) [2021-10-11 02:33:06,617 INFO L262 CegarLoopResult]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2021-10-11 02:33:06,617 INFO L265 CegarLoopResult]: At program point L77(lines 62 78) the Hoare annotation is: true [2021-10-11 02:33:06,617 INFO L262 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2021-10-11 02:33:06,617 INFO L262 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-10-11 02:33:06,618 INFO L262 CegarLoopResult]: For program point L40-2(lines 40 41) no Hoare annotation was computed. [2021-10-11 02:33:06,618 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:33:06,618 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:33:06,618 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:33:06,618 INFO L262 CegarLoopResult]: For program point L28(lines 28 34) no Hoare annotation was computed. [2021-10-11 02:33:06,619 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2021-10-11 02:33:06,619 INFO L262 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2021-10-11 02:33:06,619 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:33:06,619 INFO L262 CegarLoopResult]: For program point L29(lines 29 33) no Hoare annotation was computed. [2021-10-11 02:33:06,619 INFO L262 CegarLoopResult]: For program point L46(lines 46 49) no Hoare annotation was computed. [2021-10-11 02:33:06,619 INFO L262 CegarLoopResult]: For program point L26(lines 26 50) no Hoare annotation was computed. [2021-10-11 02:33:06,620 INFO L262 CegarLoopResult]: For program point L51(lines 51 55) no Hoare annotation was computed. [2021-10-11 02:33:06,620 INFO L262 CegarLoopResult]: For program point L51-1(lines 16 57) no Hoare annotation was computed. [2021-10-11 02:33:06,620 INFO L262 CegarLoopResult]: For program point L51-2(lines 51 55) no Hoare annotation was computed. [2021-10-11 02:33:06,620 INFO L262 CegarLoopResult]: For program point L72(lines 72 75) no Hoare annotation was computed. [2021-10-11 02:33:06,620 INFO L262 CegarLoopResult]: For program point L39(lines 39 43) no Hoare annotation was computed. [2021-10-11 02:33:06,626 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,633 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,635 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,635 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,638 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,638 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:33:06 BoogieIcfgContainer [2021-10-11 02:33:06,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:33:06,641 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:33:06,641 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:33:06,642 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:33:06,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:03" (3/4) ... [2021-10-11 02:33:06,646 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:33:06,657 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-11 02:33:06,658 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-11 02:33:06,658 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:33:06,659 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:33:06,682 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2021-10-11 02:33:06,683 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2021-10-11 02:33:06,684 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) && 1bv32 == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2021-10-11 02:33:06,708 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ed0a8ed-f9ef-40b7-88cc-4233c95b5447/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:33:06,708 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:33:06,710 INFO L168 Benchmark]: Toolchain (without parser) took 4357.95 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 44.0 MB in the beginning and 40.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:06,710 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 65.0 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:06,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.56 ms. Allocated memory is still 65.0 MB. Free memory was 43.9 MB in the beginning and 46.2 MB in the end (delta: -2.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:06,712 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.21 ms. Allocated memory is still 65.0 MB. Free memory was 46.2 MB in the beginning and 44.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:06,712 INFO L168 Benchmark]: Boogie Preprocessor took 39.70 ms. Allocated memory is still 65.0 MB. Free memory was 44.6 MB in the beginning and 43.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:06,713 INFO L168 Benchmark]: RCFGBuilder took 1095.86 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 43.0 MB in the beginning and 59.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:06,714 INFO L168 Benchmark]: TraceAbstraction took 2751.46 ms. Allocated memory is still 79.7 MB. Free memory was 59.2 MB in the beginning and 43.3 MB in the end (delta: 15.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:06,714 INFO L168 Benchmark]: Witness Printer took 67.10 ms. Allocated memory is still 79.7 MB. Free memory was 43.3 MB in the beginning and 40.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:06,717 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 65.0 MB. Free memory is still 45.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 348.56 ms. Allocated memory is still 65.0 MB. Free memory was 43.9 MB in the beginning and 46.2 MB in the end (delta: -2.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.21 ms. Allocated memory is still 65.0 MB. Free memory was 46.2 MB in the beginning and 44.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.70 ms. Allocated memory is still 65.0 MB. Free memory was 44.6 MB in the beginning and 43.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1095.86 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 43.0 MB in the beginning and 59.9 MB in the end (delta: -17.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2751.46 ms. Allocated memory is still 79.7 MB. Free memory was 59.2 MB in the beginning and 43.3 MB in the end (delta: 15.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * Witness Printer took 67.10 ms. Allocated memory is still 79.7 MB. Free memory was 43.3 MB in the beginning and 40.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 73]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant [2021-10-11 02:33:06,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 60]: Loop Invariant [2021-10-11 02:33:06,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) && 1bv32 == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant [2021-10-11 02:33:06,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:33:06,731 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 18 SDslu, 49 SDs, 0 SdLazy, 38 SolverSat, 4 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 41 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 10 QuantifiedInterpolants, 1505 SizeOfPredicates, 17 NumberOfNonLiveVariables, 142 ConjunctsInSsa, 20 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 correct! Received shutdown request...