./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8 --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 db1a0648fa242e1728c1c06c3b545dcc4e795062 ..................................................................................................................................................................................................................................................................................................................... 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_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8 --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 db1a0648fa242e1728c1c06c3b545dcc4e795062 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:14:40,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:14:40,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:14:40,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:14:40,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:14:40,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:14:40,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:14:40,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:14:40,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:14:40,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:14:40,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:14:40,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:14:40,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:14:40,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:14:40,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:14:40,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:14:40,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:14:40,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:14:40,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:14:40,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:14:40,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:14:40,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:14:40,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:14:40,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:14:40,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:14:40,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:14:40,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:14:40,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:14:40,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:14:40,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:14:40,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:14:40,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:14:40,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:14:40,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:14:40,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:14:40,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:14:40,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:14:40,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:14:40,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:14:40,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:14:40,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:14:40,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:14:40,710 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:14:40,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:14:40,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:14:40,712 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:14:40,712 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:14:40,712 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:14:40,713 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:14:40,713 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:14:40,720 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:14:40,720 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:14:40,722 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:14:40,722 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:14:40,722 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:14:40,723 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:14:40,723 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:14:40,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:14:40,724 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:14:40,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:14:40,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:14:40,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:14:40,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:14:40,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:14:40,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:14:40,726 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:14:40,726 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:14:40,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:14:40,726 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:14:40,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:14:40,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:14:40,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:14:40,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:14:40,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:14:40,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:14:40,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:14:40,730 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:14:40,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:14:40,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:14:40,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:14:40,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:14:40,731 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_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db1a0648fa242e1728c1c06c3b545dcc4e795062 [2021-10-13 07:14:41,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:14:41,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:14:41,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:14:41,118 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:14:41,121 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:14:41,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-10-13 07:14:41,209 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/data/387172ce5/d832fe989b734a12ae519b12b83db9d7/FLAG4c285e1b2 [2021-10-13 07:14:41,699 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:14:41,706 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-10-13 07:14:41,716 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/data/387172ce5/d832fe989b734a12ae519b12b83db9d7/FLAG4c285e1b2 [2021-10-13 07:14:42,061 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/data/387172ce5/d832fe989b734a12ae519b12b83db9d7 [2021-10-13 07:14:42,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:14:42,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:14:42,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:14:42,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:14:42,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:14:42,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:14:42" (1/1) ... [2021-10-13 07:14:42,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537571d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:42, skipping insertion in model container [2021-10-13 07:14:42,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:14:42" (1/1) ... [2021-10-13 07:14:42,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:14:42,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:14:42,353 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-10-13 07:14:42,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:14:42,365 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:14:42,416 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-10-13 07:14:42,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:14:42,433 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:14:42,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:42 WrapperNode [2021-10-13 07:14:42,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:14:42,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:14:42,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:14:42,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:14:42,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:42" (1/1) ... [2021-10-13 07:14:42,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:42" (1/1) ... [2021-10-13 07:14:42,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:14:42,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:14:42,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:14:42,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:14:42,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:42" (1/1) ... [2021-10-13 07:14:42,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:42" (1/1) ... [2021-10-13 07:14:42,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:42" (1/1) ... [2021-10-13 07:14:42,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:42" (1/1) ... [2021-10-13 07:14:42,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:42" (1/1) ... [2021-10-13 07:14:42,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:42" (1/1) ... [2021-10-13 07:14:42,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:42" (1/1) ... [2021-10-13 07:14:42,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:14:42,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:14:42,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:14:42,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:14:42,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:42" (1/1) ... [2021-10-13 07:14:42,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:14:42,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:14:42,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:14:42,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:14:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:14:42,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:14:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 07:14:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 07:14:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 07:14:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:14:42,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:14:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 07:14:42,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:14:43,365 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:14:43,366 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-13 07:14:43,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:14:43 BoogieIcfgContainer [2021-10-13 07:14:43,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:14:43,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:14:43,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:14:43,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:14:43,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:14:42" (1/3) ... [2021-10-13 07:14:43,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c5bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:14:43, skipping insertion in model container [2021-10-13 07:14:43,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:42" (2/3) ... [2021-10-13 07:14:43,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c5bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:14:43, skipping insertion in model container [2021-10-13 07:14:43,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:14:43" (3/3) ... [2021-10-13 07:14:43,383 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2021-10-13 07:14:43,394 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:14:43,394 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:14:43,449 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:14:43,456 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:14:43,456 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:14:43,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 45 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:14:43,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 07:14:43,479 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:14:43,480 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:14:43,480 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:14:43,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:14:43,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1760934509, now seen corresponding path program 1 times [2021-10-13 07:14:43,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:14:43,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612962724] [2021-10-13 07:14:43,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:14:43,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:14:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:14:43,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:14:43,671 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:14:43,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612962724] [2021-10-13 07:14:43,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612962724] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:14:43,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:14:43,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:14:43,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724193492] [2021-10-13 07:14:43,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:14:43,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:14:43,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:14:43,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:14:43,709 INFO L87 Difference]: Start difference. First operand has 46 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 45 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:14:43,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:14:43,730 INFO L93 Difference]: Finished difference Result 91 states and 149 transitions. [2021-10-13 07:14:43,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:14:43,732 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 07:14:43,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:14:43,742 INFO L225 Difference]: With dead ends: 91 [2021-10-13 07:14:43,742 INFO L226 Difference]: Without dead ends: 44 [2021-10-13 07:14:43,745 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:14:43,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-13 07:14:43,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-10-13 07:14:43,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:14:43,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2021-10-13 07:14:43,784 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 8 [2021-10-13 07:14:43,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:14:43,785 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2021-10-13 07:14:43,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:14:43,785 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2021-10-13 07:14:43,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:14:43,786 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:14:43,786 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:14:43,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:14:43,787 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:14:43,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:14:43,788 INFO L82 PathProgramCache]: Analyzing trace with hash -971347180, now seen corresponding path program 1 times [2021-10-13 07:14:43,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:14:43,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915562316] [2021-10-13 07:14:43,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:14:43,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:14:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:14:43,836 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:14:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:14:43,917 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 07:14:43,921 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:14:43,923 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:14:43,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:14:43,933 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:14:43,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:14:43 BoogieIcfgContainer [2021-10-13 07:14:43,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:14:43,995 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:14:43,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:14:43,997 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:14:43,997 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:14:43" (3/4) ... [2021-10-13 07:14:44,001 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 07:14:44,002 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:14:44,004 INFO L168 Benchmark]: Toolchain (without parser) took 1937.72 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 64.5 MB in the beginning and 90.2 MB in the end (delta: -25.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:14:44,005 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 107.0 MB. Free memory is still 81.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:14:44,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.33 ms. Allocated memory is still 107.0 MB. Free memory was 64.3 MB in the beginning and 78.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:14:44,009 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.09 ms. Allocated memory is still 107.0 MB. Free memory was 78.2 MB in the beginning and 75.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:14:44,015 INFO L168 Benchmark]: Boogie Preprocessor took 67.40 ms. Allocated memory is still 107.0 MB. Free memory was 75.7 MB in the beginning and 73.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:14:44,017 INFO L168 Benchmark]: RCFGBuilder took 797.61 ms. Allocated memory is still 107.0 MB. Free memory was 73.6 MB in the beginning and 50.0 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:14:44,017 INFO L168 Benchmark]: TraceAbstraction took 622.70 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 49.7 MB in the beginning and 91.0 MB in the end (delta: -41.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:14:44,018 INFO L168 Benchmark]: Witness Printer took 6.68 ms. Allocated memory is still 130.0 MB. Free memory was 91.0 MB in the beginning and 90.2 MB in the end (delta: 750.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:14:44,027 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 107.0 MB. Free memory is still 81.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 367.33 ms. Allocated memory is still 107.0 MB. Free memory was 64.3 MB in the beginning and 78.2 MB in the end (delta: -13.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.09 ms. Allocated memory is still 107.0 MB. Free memory was 78.2 MB in the beginning and 75.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.40 ms. Allocated memory is still 107.0 MB. Free memory was 75.7 MB in the beginning and 73.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 797.61 ms. Allocated memory is still 107.0 MB. Free memory was 73.6 MB in the beginning and 50.0 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 622.70 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 49.7 MB in the beginning and 91.0 MB in the end (delta: -41.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.68 ms. Allocated memory is still 130.0 MB. Free memory was 91.0 MB in the beginning and 90.2 MB in the end (delta: 750.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 200]: 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 199, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of bitwiseAnd at line 127, overapproximation of someUnaryFLOAToperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 130. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L195] float x = -0.0f; [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L128] COND TRUE ix == 0x3f800000 [L130] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L196] float res = __ieee754_asinf(x); [L199] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L199] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L200] reach_error() VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 484.2ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.8ms, AutomataDifference: 52.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 58 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 22.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.3ms SsaConstructionTime, 69.8ms SatisfiabilityAnalysisTime, 72.8ms InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-13 07:14:44,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:14:46,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:14:46,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:14:46,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:14:46,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:14:46,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:14:46,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:14:46,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:14:46,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:14:46,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:14:46,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:14:46,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:14:46,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:14:46,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:14:46,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:14:46,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:14:46,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:14:46,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:14:46,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:14:46,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:14:46,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:14:46,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:14:46,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:14:46,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:14:46,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:14:46,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:14:46,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:14:46,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:14:46,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:14:46,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:14:46,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:14:46,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:14:46,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:14:46,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:14:46,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:14:46,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:14:46,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:14:46,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:14:46,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:14:46,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:14:46,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:14:46,710 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:14:46,760 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:14:46,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:14:46,761 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:14:46,762 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:14:46,762 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:14:46,762 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:14:46,762 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:14:46,763 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:14:46,763 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:14:46,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:14:46,765 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:14:46,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:14:46,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:14:46,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:14:46,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:14:46,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:14:46,767 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:14:46,767 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:14:46,767 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:14:46,767 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:14:46,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:14:46,768 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:14:46,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:14:46,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:14:46,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:14:46,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:14:46,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:14:46,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:14:46,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:14:46,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:14:46,769 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:14:46,770 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:14:46,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:14:46,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:14:46,770 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:14:46,771 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_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db1a0648fa242e1728c1c06c3b545dcc4e795062 [2021-10-13 07:14:47,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:14:47,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:14:47,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:14:47,227 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:14:47,228 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:14:47,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-10-13 07:14:47,312 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/data/cff76665d/13be6a5c2eef49d3b9103f43aa4c69e1/FLAG405ae374a [2021-10-13 07:14:47,853 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:14:47,854 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-10-13 07:14:47,866 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/data/cff76665d/13be6a5c2eef49d3b9103f43aa4c69e1/FLAG405ae374a [2021-10-13 07:14:48,209 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/data/cff76665d/13be6a5c2eef49d3b9103f43aa4c69e1 [2021-10-13 07:14:48,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:14:48,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:14:48,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:14:48,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:14:48,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:14:48,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:14:48" (1/1) ... [2021-10-13 07:14:48,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78ec981b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:48, skipping insertion in model container [2021-10-13 07:14:48,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:14:48" (1/1) ... [2021-10-13 07:14:48,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:14:48,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:14:48,545 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-10-13 07:14:48,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:14:48,570 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:14:48,676 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-10-13 07:14:48,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:14:48,699 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:14:48,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:48 WrapperNode [2021-10-13 07:14:48,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:14:48,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:14:48,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:14:48,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:14:48,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:48" (1/1) ... [2021-10-13 07:14:48,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:48" (1/1) ... [2021-10-13 07:14:48,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:14:48,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:14:48,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:14:48,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:14:48,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:48" (1/1) ... [2021-10-13 07:14:48,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:48" (1/1) ... [2021-10-13 07:14:48,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:48" (1/1) ... [2021-10-13 07:14:48,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:48" (1/1) ... [2021-10-13 07:14:48,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:48" (1/1) ... [2021-10-13 07:14:48,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:48" (1/1) ... [2021-10-13 07:14:48,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:48" (1/1) ... [2021-10-13 07:14:48,858 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:14:48,859 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:14:48,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:14:48,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:14:48,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:48" (1/1) ... [2021-10-13 07:14:48,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:14:48,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:14:48,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:14:48,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:14:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:14:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:14:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-13 07:14:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 07:14:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:14:48,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:14:48,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-13 07:14:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 07:14:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:14:59,496 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:14:59,497 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-13 07:14:59,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:14:59 BoogieIcfgContainer [2021-10-13 07:14:59,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:14:59,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:14:59,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:14:59,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:14:59,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:14:48" (1/3) ... [2021-10-13 07:14:59,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6baa8788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:14:59, skipping insertion in model container [2021-10-13 07:14:59,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:14:48" (2/3) ... [2021-10-13 07:14:59,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6baa8788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:14:59, skipping insertion in model container [2021-10-13 07:14:59,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:14:59" (3/3) ... [2021-10-13 07:14:59,510 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2021-10-13 07:14:59,516 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:14:59,516 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:14:59,566 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:14:59,572 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:14:59,572 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:14:59,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:14:59,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:14:59,594 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:14:59,595 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:14:59,595 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:14:59,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:14:59,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1900514974, now seen corresponding path program 1 times [2021-10-13 07:14:59,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:14:59,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2044176698] [2021-10-13 07:14:59,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:14:59,616 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:14:59,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:14:59,621 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:14:59,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:15:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:15:00,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 07:15:00,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:15:00,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:15:00,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:15:00,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:15:00,577 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:15:00,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2044176698] [2021-10-13 07:15:00,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2044176698] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:15:00,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:15:00,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 07:15:00,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722804262] [2021-10-13 07:15:00,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:15:00,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:15:00,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:15:00,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:15:00,611 INFO L87 Difference]: Start difference. First operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:00,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:15:00,638 INFO L93 Difference]: Finished difference Result 118 states and 192 transitions. [2021-10-13 07:15:00,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:15:00,640 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 07:15:00,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:15:00,650 INFO L225 Difference]: With dead ends: 118 [2021-10-13 07:15:00,650 INFO L226 Difference]: Without dead ends: 57 [2021-10-13 07:15:00,654 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:15:00,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-13 07:15:00,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-10-13 07:15:00,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 56 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:00,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2021-10-13 07:15:00,700 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 9 [2021-10-13 07:15:00,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:15:00,701 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2021-10-13 07:15:00,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:00,701 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2021-10-13 07:15:00,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 07:15:00,702 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:15:00,702 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:15:00,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:15:00,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:15:00,903 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:15:00,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:15:00,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1487835839, now seen corresponding path program 1 times [2021-10-13 07:15:00,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:15:00,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325286458] [2021-10-13 07:15:00,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:15:00,906 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:15:00,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:15:00,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:15:00,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:15:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:15:01,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 07:15:01,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:15:01,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:15:01,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:15:02,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:15:02,433 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:15:02,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325286458] [2021-10-13 07:15:02,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325286458] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:15:02,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:15:02,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-13 07:15:02,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747465934] [2021-10-13 07:15:02,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:15:02,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:15:02,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:15:02,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:15:02,437 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:03,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:15:03,845 INFO L93 Difference]: Finished difference Result 104 states and 135 transitions. [2021-10-13 07:15:03,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:15:03,847 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 07:15:03,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:15:03,848 INFO L225 Difference]: With dead ends: 104 [2021-10-13 07:15:03,848 INFO L226 Difference]: Without dead ends: 57 [2021-10-13 07:15:03,850 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 608.8ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:15:03,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-13 07:15:03,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-10-13 07:15:03,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 56 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:03,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2021-10-13 07:15:03,860 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 10 [2021-10-13 07:15:03,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:15:03,861 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2021-10-13 07:15:03,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:03,861 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2021-10-13 07:15:03,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 07:15:03,862 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:15:03,862 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:15:03,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:15:04,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:15:04,063 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:15:04,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:15:04,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1089938183, now seen corresponding path program 1 times [2021-10-13 07:15:04,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:15:04,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769899678] [2021-10-13 07:15:04,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:15:04,064 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:15:04,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:15:04,065 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:15:04,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:15:04,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:15:04,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:15:04,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:15:05,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:15:05,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:15:05,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:15:05,466 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:15:05,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769899678] [2021-10-13 07:15:05,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769899678] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:15:05,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:15:05,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-10-13 07:15:05,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732365732] [2021-10-13 07:15:05,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:15:05,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:15:05,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:15:05,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:15:05,469 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:06,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:15:06,136 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2021-10-13 07:15:06,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:15:06,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 07:15:06,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:15:06,139 INFO L225 Difference]: With dead ends: 69 [2021-10-13 07:15:06,139 INFO L226 Difference]: Without dead ends: 66 [2021-10-13 07:15:06,140 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 587.9ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:15:06,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-13 07:15:06,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2021-10-13 07:15:06,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 58 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:06,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2021-10-13 07:15:06,169 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 14 [2021-10-13 07:15:06,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:15:06,170 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2021-10-13 07:15:06,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:06,170 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2021-10-13 07:15:06,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 07:15:06,172 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:15:06,172 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:15:06,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:15:06,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:15:06,385 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:15:06,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:15:06,386 INFO L82 PathProgramCache]: Analyzing trace with hash 980104924, now seen corresponding path program 1 times [2021-10-13 07:15:06,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:15:06,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135179114] [2021-10-13 07:15:06,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:15:06,387 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:15:06,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:15:06,389 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:15:06,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:15:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:15:07,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 07:15:07,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:15:08,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:15:08,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:15:09,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:15:09,507 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:15:09,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135179114] [2021-10-13 07:15:09,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135179114] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:15:09,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:15:09,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2021-10-13 07:15:09,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273862205] [2021-10-13 07:15:09,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 07:15:09,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:15:09,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 07:15:09,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-10-13 07:15:09,510 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:11,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:15:11,010 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2021-10-13 07:15:11,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 07:15:11,011 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 07:15:11,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:15:11,013 INFO L225 Difference]: With dead ends: 66 [2021-10-13 07:15:11,013 INFO L226 Difference]: Without dead ends: 57 [2021-10-13 07:15:11,014 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2080.6ms TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2021-10-13 07:15:11,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-13 07:15:11,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-10-13 07:15:11,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 56 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:11,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2021-10-13 07:15:11,023 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 18 [2021-10-13 07:15:11,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:15:11,023 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2021-10-13 07:15:11,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:11,024 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2021-10-13 07:15:11,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 07:15:11,026 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:15:11,026 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:15:11,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:15:11,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:15:11,227 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:15:11,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:15:11,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1296197232, now seen corresponding path program 1 times [2021-10-13 07:15:11,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:15:11,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682290496] [2021-10-13 07:15:11,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:15:11,228 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:15:11,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:15:11,229 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:15:11,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:15:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:15:13,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:15:13,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:15:14,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:15:14,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:15:16,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:15:16,994 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:15:16,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682290496] [2021-10-13 07:15:16,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682290496] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:15:16,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:15:16,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-13 07:15:16,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628860889] [2021-10-13 07:15:16,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:15:16,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:15:16,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:15:16,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:15:16,997 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:17,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:15:17,102 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2021-10-13 07:15:17,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:15:17,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-13 07:15:17,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:15:17,104 INFO L225 Difference]: With dead ends: 57 [2021-10-13 07:15:17,104 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:15:17,105 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 901.7ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:15:17,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:15:17,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:15:17,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:17,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:15:17,106 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-10-13 07:15:17,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:15:17,106 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:15:17,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:17,107 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:15:17,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:15:17,110 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:15:17,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:15:17,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:15:17,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:15:17,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:15:17,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:15:17,348 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:15:17,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:15:17,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:15:17,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:15:17,355 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:15:17,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:15:17,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:15:17,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:15:17,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:15:17,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:15:17,404 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:15:17,868 INFO L853 garLoopResultBuilder]: At program point L184(lines 119 185) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) (fp.neg (_ +zero 8 24))) (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)))))) [2021-10-13 07:15:17,868 INFO L857 garLoopResultBuilder]: For program point L135(lines 135 136) no Hoare annotation was computed. [2021-10-13 07:15:17,868 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:15:17,869 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2021-10-13 07:15:17,869 INFO L853 garLoopResultBuilder]: At program point L87-2(lines 87 91) the Hoare annotation is: false [2021-10-13 07:15:17,869 INFO L857 garLoopResultBuilder]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2021-10-13 07:15:17,869 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 174) no Hoare annotation was computed. [2021-10-13 07:15:17,869 INFO L857 garLoopResultBuilder]: For program point L170-1(lines 162 180) no Hoare annotation was computed. [2021-10-13 07:15:17,869 INFO L857 garLoopResultBuilder]: For program point L170-2(lines 170 174) no Hoare annotation was computed. [2021-10-13 07:15:17,870 INFO L860 garLoopResultBuilder]: At program point L204(lines 187 205) the Hoare annotation is: true [2021-10-13 07:15:17,870 INFO L857 garLoopResultBuilder]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2021-10-13 07:15:17,870 INFO L853 garLoopResultBuilder]: At program point L122-2(lines 122 126) the Hoare annotation is: (and (= ~huge_asin~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= ULTIMATE.start___ieee754_asinf_~x (fp.neg (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_asin~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-13 07:15:17,870 INFO L857 garLoopResultBuilder]: For program point L56(lines 56 57) no Hoare annotation was computed. [2021-10-13 07:15:17,870 INFO L857 garLoopResultBuilder]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2021-10-13 07:15:17,871 INFO L853 garLoopResultBuilder]: At program point L23(lines 14 24) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 ULTIMATE.start_main_~res~0) |ULTIMATE.start_main_#t~short20| (= |ULTIMATE.start___signbit_float_#res| (_ bv1 32)) (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) (fp.neg (_ +zero 8 24))) (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)))) (= .cse0 ULTIMATE.start___signbit_float_~x))) [2021-10-13 07:15:17,871 INFO L857 garLoopResultBuilder]: For program point L56-2(lines 56 57) no Hoare annotation was computed. [2021-10-13 07:15:17,871 INFO L853 garLoopResultBuilder]: At program point L106(lines 94 107) the Hoare annotation is: false [2021-10-13 07:15:17,871 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-10-13 07:15:17,871 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:15:17,871 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 84) no Hoare annotation was computed. [2021-10-13 07:15:17,872 INFO L853 garLoopResultBuilder]: At program point L92(lines 28 93) the Hoare annotation is: false [2021-10-13 07:15:17,872 INFO L857 garLoopResultBuilder]: For program point L43(lines 43 44) no Hoare annotation was computed. [2021-10-13 07:15:17,872 INFO L857 garLoopResultBuilder]: For program point L159(lines 159 180) no Hoare annotation was computed. [2021-10-13 07:15:17,872 INFO L857 garLoopResultBuilder]: For program point L159-2(lines 119 185) no Hoare annotation was computed. [2021-10-13 07:15:17,872 INFO L857 garLoopResultBuilder]: For program point L77(lines 77 83) no Hoare annotation was computed. [2021-10-13 07:15:17,872 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:15:17,872 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 46) no Hoare annotation was computed. [2021-10-13 07:15:17,873 INFO L857 garLoopResultBuilder]: For program point L128(lines 128 148) no Hoare annotation was computed. [2021-10-13 07:15:17,873 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 82) no Hoare annotation was computed. [2021-10-13 07:15:17,873 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2021-10-13 07:15:17,873 INFO L853 garLoopResultBuilder]: At program point L96-2(lines 96 100) the Hoare annotation is: false [2021-10-13 07:15:17,873 INFO L853 garLoopResultBuilder]: At program point L64-2(lines 64 73) the Hoare annotation is: false [2021-10-13 07:15:17,873 INFO L857 garLoopResultBuilder]: For program point L64-3(lines 28 93) no Hoare annotation was computed. [2021-10-13 07:15:17,873 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 148) no Hoare annotation was computed. [2021-10-13 07:15:17,874 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:15:17,874 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 200) no Hoare annotation was computed. [2021-10-13 07:15:17,874 INFO L857 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2021-10-13 07:15:17,874 INFO L857 garLoopResultBuilder]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2021-10-13 07:15:17,874 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 165 169) no Hoare annotation was computed. [2021-10-13 07:15:17,874 INFO L853 garLoopResultBuilder]: At program point L165-2(lines 165 169) the Hoare annotation is: false [2021-10-13 07:15:17,874 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-10-13 07:15:17,875 INFO L857 garLoopResultBuilder]: For program point L33-1(lines 33 37) no Hoare annotation was computed. [2021-10-13 07:15:17,875 INFO L857 garLoopResultBuilder]: For program point L66-2(lines 66 70) no Hoare annotation was computed. [2021-10-13 07:15:17,875 INFO L853 garLoopResultBuilder]: At program point L33-2(lines 33 37) the Hoare annotation is: false [2021-10-13 07:15:17,875 INFO L857 garLoopResultBuilder]: For program point L33-3(lines 33 37) no Hoare annotation was computed. [2021-10-13 07:15:17,875 INFO L857 garLoopResultBuilder]: For program point L50-2(lines 50 51) no Hoare annotation was computed. [2021-10-13 07:15:17,875 INFO L857 garLoopResultBuilder]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2021-10-13 07:15:17,875 INFO L853 garLoopResultBuilder]: At program point L50-3(lines 50 51) the Hoare annotation is: false [2021-10-13 07:15:17,876 INFO L853 garLoopResultBuilder]: At program point L17-2(lines 17 21) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 ULTIMATE.start_main_~res~0) |ULTIMATE.start_main_#t~short20| (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) (fp.neg (_ +zero 8 24))) (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)))) (= .cse0 ULTIMATE.start___signbit_float_~x))) [2021-10-13 07:15:17,876 INFO L857 garLoopResultBuilder]: For program point L50-4(lines 50 51) no Hoare annotation was computed. [2021-10-13 07:15:17,876 INFO L857 garLoopResultBuilder]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2021-10-13 07:15:17,876 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-10-13 07:15:17,876 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 148) no Hoare annotation was computed. [2021-10-13 07:15:17,876 INFO L857 garLoopResultBuilder]: For program point L199-2(lines 199 202) no Hoare annotation was computed. [2021-10-13 07:15:17,877 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 133 148) no Hoare annotation was computed. [2021-10-13 07:15:17,877 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 07:15:17,877 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 147) no Hoare annotation was computed. [2021-10-13 07:15:17,877 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 105) no Hoare annotation was computed. [2021-10-13 07:15:17,885 INFO L857 garLoopResultBuilder]: For program point L101-1(lines 94 107) no Hoare annotation was computed. [2021-10-13 07:15:17,885 INFO L857 garLoopResultBuilder]: For program point L101-2(lines 101 105) no Hoare annotation was computed. [2021-10-13 07:15:17,890 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:15:17,899 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:15:17,902 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:15:17,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,905 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,905 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,906 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,906 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,906 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,907 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,907 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,907 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,907 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,908 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,908 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,909 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,910 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,910 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,910 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,911 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,911 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,911 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,911 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:17,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:15:17 BoogieIcfgContainer [2021-10-13 07:15:17,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:15:17,913 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:15:17,913 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:15:17,913 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:15:17,914 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:14:59" (3/4) ... [2021-10-13 07:15:17,916 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:15:17,928 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-13 07:15:17,929 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 07:15:17,929 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:15:17,930 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:15:17,953 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1)) [2021-10-13 07:15:17,954 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && aux-res == -0.0f && __signbit_float(res) == 1-aux) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x [2021-10-13 07:15:17,955 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == 1bv32) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x [2021-10-13 07:15:17,983 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:15:17,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:15:17,985 INFO L168 Benchmark]: Toolchain (without parser) took 29769.57 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.9 MB in the beginning and 43.1 MB in the end (delta: -7.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:17,985 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 58.7 MB. Free memory was 39.1 MB in the beginning and 39.0 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:15:17,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 484.31 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.7 MB in the beginning and 50.7 MB in the end (delta: -15.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:17,986 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.80 ms. Allocated memory is still 71.3 MB. Free memory was 50.7 MB in the beginning and 48.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:17,987 INFO L168 Benchmark]: Boogie Preprocessor took 78.40 ms. Allocated memory is still 71.3 MB. Free memory was 48.2 MB in the beginning and 46.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:17,987 INFO L168 Benchmark]: RCFGBuilder took 10640.32 ms. Allocated memory is still 71.3 MB. Free memory was 46.0 MB in the beginning and 43.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:17,987 INFO L168 Benchmark]: TraceAbstraction took 18410.21 ms. Allocated memory is still 71.3 MB. Free memory was 43.2 MB in the beginning and 48.7 MB in the end (delta: -5.5 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:17,988 INFO L168 Benchmark]: Witness Printer took 70.63 ms. Allocated memory is still 71.3 MB. Free memory was 48.2 MB in the beginning and 43.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:17,990 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 58.7 MB. Free memory was 39.1 MB in the beginning and 39.0 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 484.31 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.7 MB in the beginning and 50.7 MB in the end (delta: -15.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.80 ms. Allocated memory is still 71.3 MB. Free memory was 50.7 MB in the beginning and 48.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 78.40 ms. Allocated memory is still 71.3 MB. Free memory was 48.2 MB in the beginning and 46.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10640.32 ms. Allocated memory is still 71.3 MB. Free memory was 46.0 MB in the beginning and 43.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18410.21 ms. Allocated memory is still 71.3 MB. Free memory was 43.2 MB in the beginning and 48.7 MB in the end (delta: -5.5 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * Witness Printer took 70.63 ms. Allocated memory is still 71.3 MB. Free memory was 48.2 MB in the beginning and 43.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 200]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18325.9ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 14.3ms, AutomataDifference: 3761.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 547.4ms, InitialAbstractionConstructionTime: 11.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 267 SDtfs, 512 SDslu, 799 SDs, 0 SdLazy, 127 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2181.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 4179.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 82.4ms AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 18 NumberOfFragments, 170 HoareAnnotationTreeSize, 13 FomulaSimplifications, 88 FormulaSimplificationTreeSizeReduction, 80.7ms HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 459.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 79.6ms SsaConstructionTime, 4019.2ms SatisfiabilityAnalysisTime, 8398.0ms InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 158 ConstructedInterpolants, 13 QuantifiedInterpolants, 762 SizeOfPredicates, 28 NumberOfNonLiveVariables, 377 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant [2021-10-13 07:15:18,000 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:15:18,001 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((huge_asin == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_asin) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant [2021-10-13 07:15:18,002 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,002 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,003 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,003 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,003 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,004 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,004 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,004 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && aux-res == -0.0f && __signbit_float(res) == 1-aux) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant [2021-10-13 07:15:18,005 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,005 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,005 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,005 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,006 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,006 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,006 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,006 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == 1bv32) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 119]: Loop Invariant [2021-10-13 07:15:18,007 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,007 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,007 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,008 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,008 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,008 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,008 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-13 07:15:18,009 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1)) - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-13 07:15:18,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837e4354-220b-45c3-82f7-47310f58a1ef/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...