./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0970b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE --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 d5c5ff1b3d40131cee5d1997b867471744922aa520d3755a38edc2a954869cdb ............................................................................................................................................................................................................................................................................................................................... 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_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE --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 d5c5ff1b3d40131cee5d1997b867471744922aa520d3755a38edc2a954869cdb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 09:51:11,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 09:51:11,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 09:51:11,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 09:51:11,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 09:51:11,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 09:51:11,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 09:51:11,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 09:51:11,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 09:51:11,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 09:51:11,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 09:51:11,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 09:51:11,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 09:51:11,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 09:51:11,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 09:51:11,549 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 09:51:11,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 09:51:11,552 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 09:51:11,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 09:51:11,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 09:51:11,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 09:51:11,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 09:51:11,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 09:51:11,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 09:51:11,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 09:51:11,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 09:51:11,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 09:51:11,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 09:51:11,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 09:51:11,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 09:51:11,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 09:51:11,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 09:51:11,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 09:51:11,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 09:51:11,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 09:51:11,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 09:51:11,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 09:51:11,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 09:51:11,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:51:11,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:51:11,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:51:11,583 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 09:51:11,616 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:51:11,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:51:11,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:51:11,622 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:51:11,622 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:51:11,622 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:51:11,623 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 09:51:11,623 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:51:11,623 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:51:11,623 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 09:51:11,623 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 09:51:11,624 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:51:11,624 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 09:51:11,624 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 09:51:11,624 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 09:51:11,625 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:51:11,625 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:51:11,625 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 09:51:11,625 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:51:11,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:51:11,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 09:51:11,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:51:11,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 09:51:11,626 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:51:11,626 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:51:11,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 09:51:11,627 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:51:11,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 09:51:11,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:51:11,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:51:11,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:51:11,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:51:11,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:51:11,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 09:51:11,628 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 09:51:11,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 09:51:11,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 09:51:11,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:51:11,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:51:11,629 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_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5c5ff1b3d40131cee5d1997b867471744922aa520d3755a38edc2a954869cdb [2021-10-24 09:51:11,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:51:11,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:51:11,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:51:11,983 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:51:11,985 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:51:11,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/float-newlib/double_req_bl_0970b.c [2021-10-24 09:51:12,072 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/data/18b55b8b8/cd9d3370e9ea4b0690207cb480f34c16/FLAG0e9cf33fa [2021-10-24 09:51:12,620 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:51:12,621 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/sv-benchmarks/c/float-newlib/double_req_bl_0970b.c [2021-10-24 09:51:12,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/data/18b55b8b8/cd9d3370e9ea4b0690207cb480f34c16/FLAG0e9cf33fa [2021-10-24 09:51:12,952 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/data/18b55b8b8/cd9d3370e9ea4b0690207cb480f34c16 [2021-10-24 09:51:12,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:51:12,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:51:12,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:51:12,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:51:12,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:51:12,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:51:12" (1/1) ... [2021-10-24 09:51:12,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78be2912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:12, skipping insertion in model container [2021-10-24 09:51:12,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:51:12" (1/1) ... [2021-10-24 09:51:12,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:51:13,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:51:13,284 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_30b4816f-1b6b-4dad-baa4-fabc11524cc3/sv-benchmarks/c/float-newlib/double_req_bl_0970b.c[4615,4628] [2021-10-24 09:51:13,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:51:13,299 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 09:51:13,355 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_30b4816f-1b6b-4dad-baa4-fabc11524cc3/sv-benchmarks/c/float-newlib/double_req_bl_0970b.c[4615,4628] [2021-10-24 09:51:13,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:51:13,375 INFO L208 MainTranslator]: Completed translation [2021-10-24 09:51:13,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:13 WrapperNode [2021-10-24 09:51:13,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:51:13,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 09:51:13,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 09:51:13,379 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 09:51:13,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:13" (1/1) ... [2021-10-24 09:51:13,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:13" (1/1) ... [2021-10-24 09:51:13,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 09:51:13,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 09:51:13,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 09:51:13,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 09:51:13,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:13" (1/1) ... [2021-10-24 09:51:13,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:13" (1/1) ... [2021-10-24 09:51:13,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:13" (1/1) ... [2021-10-24 09:51:13,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:13" (1/1) ... [2021-10-24 09:51:13,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:13" (1/1) ... [2021-10-24 09:51:13,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:13" (1/1) ... [2021-10-24 09:51:13,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:13" (1/1) ... [2021-10-24 09:51:13,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 09:51:13,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 09:51:13,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 09:51:13,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 09:51:13,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:13" (1/1) ... [2021-10-24 09:51:13,502 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:51:13,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:51:13,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 09:51:13,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 09:51:13,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 09:51:13,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 09:51:13,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-24 09:51:13,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-24 09:51:13,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-24 09:51:13,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 09:51:13,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 09:51:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-24 09:51:13,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 09:51:14,346 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 09:51:14,346 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-24 09:51:14,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:51:14 BoogieIcfgContainer [2021-10-24 09:51:14,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 09:51:14,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 09:51:14,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 09:51:14,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 09:51:14,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:51:12" (1/3) ... [2021-10-24 09:51:14,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3689c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:51:14, skipping insertion in model container [2021-10-24 09:51:14,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:13" (2/3) ... [2021-10-24 09:51:14,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3689c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:51:14, skipping insertion in model container [2021-10-24 09:51:14,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:51:14" (3/3) ... [2021-10-24 09:51:14,375 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970b.c [2021-10-24 09:51:14,381 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 09:51:14,386 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 09:51:14,470 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 09:51:14,478 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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 [2021-10-24 09:51:14,479 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 09:51:14,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 31 states have internal predecessors, (52), 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) [2021-10-24 09:51:14,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-24 09:51:14,526 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:51:14,527 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:51:14,528 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:51:14,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:51:14,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1849474468, now seen corresponding path program 1 times [2021-10-24 09:51:14,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:51:14,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627807958] [2021-10-24 09:51:14,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:51:14,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:51:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:51:14,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:14,801 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 09:51:14,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627807958] [2021-10-24 09:51:14,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627807958] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 09:51:14,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:51:14,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 09:51:14,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718789103] [2021-10-24 09:51:14,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 09:51:14,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 09:51:14,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 09:51:14,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 09:51:14,837 INFO L87 Difference]: Start difference. First operand has 32 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 31 states have internal predecessors, (52), 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) [2021-10-24 09:51:14,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:51:14,859 INFO L93 Difference]: Finished difference Result 63 states and 103 transitions. [2021-10-24 09:51:14,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 09:51:14,861 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 [2021-10-24 09:51:14,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:51:14,873 INFO L225 Difference]: With dead ends: 63 [2021-10-24 09:51:14,873 INFO L226 Difference]: Without dead ends: 30 [2021-10-24 09:51:14,879 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 [2021-10-24 09:51:14,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-24 09:51:14,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-24 09:51:14,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 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) [2021-10-24 09:51:14,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2021-10-24 09:51:14,928 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 8 [2021-10-24 09:51:14,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:51:14,929 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-10-24 09:51:14,929 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) [2021-10-24 09:51:14,929 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2021-10-24 09:51:14,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-24 09:51:14,930 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:51:14,930 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:51:14,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 09:51:14,931 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:51:14,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:51:14,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1049603861, now seen corresponding path program 1 times [2021-10-24 09:51:14,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 09:51:14,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136276635] [2021-10-24 09:51:14,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:51:14,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 09:51:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 09:51:15,035 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 09:51:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 09:51:15,185 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 09:51:15,186 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 09:51:15,187 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 09:51:15,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 09:51:15,195 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 09:51:15,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:51:15 BoogieIcfgContainer [2021-10-24 09:51:15,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 09:51:15,234 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 09:51:15,234 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 09:51:15,235 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 09:51:15,235 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:51:14" (3/4) ... [2021-10-24 09:51:15,239 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 09:51:15,239 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 09:51:15,242 INFO L168 Benchmark]: Toolchain (without parser) took 2283.57 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 58.9 MB in the beginning and 56.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 43.2 MB. Max. memory is 16.1 GB. [2021-10-24 09:51:15,242 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 94.4 MB. Free memory was 67.0 MB in the beginning and 66.9 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:51:15,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.04 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 58.6 MB in the beginning and 108.0 MB in the end (delta: -49.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 09:51:15,244 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.19 ms. Allocated memory is still 136.3 MB. Free memory was 108.0 MB in the beginning and 105.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 09:51:15,245 INFO L168 Benchmark]: Boogie Preprocessor took 47.98 ms. Allocated memory is still 136.3 MB. Free memory was 105.9 MB in the beginning and 104.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 09:51:15,246 INFO L168 Benchmark]: RCFGBuilder took 859.77 ms. Allocated memory is still 136.3 MB. Free memory was 103.8 MB in the beginning and 82.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-24 09:51:15,247 INFO L168 Benchmark]: TraceAbstraction took 881.67 ms. Allocated memory is still 136.3 MB. Free memory was 82.8 MB in the beginning and 56.4 MB in the end (delta: 26.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-24 09:51:15,247 INFO L168 Benchmark]: Witness Printer took 5.08 ms. Allocated memory is still 136.3 MB. Free memory is still 56.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:51:15,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 94.4 MB. Free memory was 67.0 MB in the beginning and 66.9 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 410.04 ms. Allocated memory was 94.4 MB in the beginning and 136.3 MB in the end (delta: 41.9 MB). Free memory was 58.6 MB in the beginning and 108.0 MB in the end (delta: -49.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.19 ms. Allocated memory is still 136.3 MB. Free memory was 108.0 MB in the beginning and 105.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.98 ms. Allocated memory is still 136.3 MB. Free memory was 105.9 MB in the beginning and 104.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 859.77 ms. Allocated memory is still 136.3 MB. Free memory was 103.8 MB in the beginning and 82.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 881.67 ms. Allocated memory is still 136.3 MB. Free memory was 82.8 MB in the beginning and 56.4 MB in the end (delta: 26.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Witness Printer took 5.08 ms. Allocated memory is still 136.3 MB. Free memory is still 56.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 177]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 163, overapproximation of bitwiseOr at line 134, overapproximation of someBinaryArithmeticDOUBLEoperation at line 135. Possible FailurePath: [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L30] static const double zero = 0.0; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L118] static const double zero_log10 = 0.0; [L172] double x = -1.0 / 0.0; [L121] double y, z; [L122] __int32_t i, k, hx; [L123] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L126] ieee_double_shape_type ew_u; [L127] ew_u.value = (x) [L128] EXPR ew_u.parts.msw [L128] (hx) = ew_u.parts.msw [L129] EXPR ew_u.parts.lsw [L129] (lx) = ew_u.parts.lsw [L132] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L133] COND TRUE hx < 0x00100000 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L134] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L135] return -two54_log10 / zero_log10; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L173] double res = __ieee754_log10(x); [L163] return x != x; [L176] COND TRUE !isnan_double(res) [L177] reach_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 725.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 34.5ms, AutomataDifference: 62.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 39 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=32occurred 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: 30.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.5ms SsaConstructionTime, 115.2ms SatisfiabilityAnalysisTime, 93.6ms 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 [2021-10-24 09:51:15,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 09:51:18,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 09:51:18,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 09:51:18,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 09:51:18,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 09:51:18,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 09:51:18,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 09:51:18,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 09:51:18,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 09:51:18,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 09:51:18,364 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 09:51:18,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 09:51:18,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 09:51:18,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 09:51:18,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 09:51:18,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 09:51:18,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 09:51:18,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 09:51:18,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 09:51:18,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 09:51:18,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 09:51:18,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 09:51:18,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 09:51:18,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 09:51:18,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 09:51:18,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 09:51:18,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 09:51:18,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 09:51:18,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 09:51:18,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 09:51:18,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 09:51:18,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 09:51:18,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 09:51:18,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 09:51:18,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 09:51:18,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 09:51:18,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 09:51:18,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 09:51:18,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:51:18,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:51:18,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:51:18,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 09:51:18,459 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:51:18,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:51:18,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:51:18,460 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:51:18,461 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:51:18,461 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:51:18,461 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:51:18,462 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:51:18,462 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:51:18,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:51:18,463 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:51:18,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:51:18,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:51:18,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 09:51:18,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:51:18,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 09:51:18,465 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:51:18,465 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 09:51:18,465 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 09:51:18,465 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:51:18,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 09:51:18,466 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:51:18,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 09:51:18,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:51:18,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 09:51:18,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:51:18,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:51:18,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:51:18,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:51:18,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 09:51:18,468 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 09:51:18,468 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 09:51:18,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 09:51:18,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:51:18,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:51:18,469 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_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5c5ff1b3d40131cee5d1997b867471744922aa520d3755a38edc2a954869cdb [2021-10-24 09:51:18,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:51:18,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:51:18,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:51:18,988 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:51:18,989 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:51:18,993 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/float-newlib/double_req_bl_0970b.c [2021-10-24 09:51:19,086 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/data/98f977ab0/efb7bc56faf54da499e840409bbf9c7e/FLAG64362da25 [2021-10-24 09:51:19,753 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:51:19,754 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/sv-benchmarks/c/float-newlib/double_req_bl_0970b.c [2021-10-24 09:51:19,768 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/data/98f977ab0/efb7bc56faf54da499e840409bbf9c7e/FLAG64362da25 [2021-10-24 09:51:20,065 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/data/98f977ab0/efb7bc56faf54da499e840409bbf9c7e [2021-10-24 09:51:20,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:51:20,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:51:20,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:51:20,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:51:20,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:51:20,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:51:20" (1/1) ... [2021-10-24 09:51:20,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537283c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:20, skipping insertion in model container [2021-10-24 09:51:20,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:51:20" (1/1) ... [2021-10-24 09:51:20,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:51:20,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:51:20,427 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_30b4816f-1b6b-4dad-baa4-fabc11524cc3/sv-benchmarks/c/float-newlib/double_req_bl_0970b.c[4615,4628] [2021-10-24 09:51:20,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:51:20,482 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 09:51:20,538 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_30b4816f-1b6b-4dad-baa4-fabc11524cc3/sv-benchmarks/c/float-newlib/double_req_bl_0970b.c[4615,4628] [2021-10-24 09:51:20,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:51:20,570 INFO L208 MainTranslator]: Completed translation [2021-10-24 09:51:20,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:20 WrapperNode [2021-10-24 09:51:20,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:51:20,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 09:51:20,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 09:51:20,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 09:51:20,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:20" (1/1) ... [2021-10-24 09:51:20,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:20" (1/1) ... [2021-10-24 09:51:20,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 09:51:20,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 09:51:20,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 09:51:20,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 09:51:20,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:20" (1/1) ... [2021-10-24 09:51:20,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:20" (1/1) ... [2021-10-24 09:51:20,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:20" (1/1) ... [2021-10-24 09:51:20,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:20" (1/1) ... [2021-10-24 09:51:20,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:20" (1/1) ... [2021-10-24 09:51:20,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:20" (1/1) ... [2021-10-24 09:51:20,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:20" (1/1) ... [2021-10-24 09:51:20,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 09:51:20,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 09:51:20,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 09:51:20,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 09:51:20,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:20" (1/1) ... [2021-10-24 09:51:20,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:51:20,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:51:20,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 09:51:20,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 09:51:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-24 09:51:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-24 09:51:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 09:51:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 09:51:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-24 09:51:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 09:51:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 09:51:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-24 09:51:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 09:51:56,084 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 09:51:56,084 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-24 09:51:56,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:51:56 BoogieIcfgContainer [2021-10-24 09:51:56,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 09:51:56,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 09:51:56,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 09:51:56,092 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 09:51:56,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:51:20" (1/3) ... [2021-10-24 09:51:56,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e81f4e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:51:56, skipping insertion in model container [2021-10-24 09:51:56,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:20" (2/3) ... [2021-10-24 09:51:56,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e81f4e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:51:56, skipping insertion in model container [2021-10-24 09:51:56,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:51:56" (3/3) ... [2021-10-24 09:51:56,099 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970b.c [2021-10-24 09:51:56,106 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 09:51:56,107 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 09:51:56,165 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 09:51:56,172 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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 [2021-10-24 09:51:56,173 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 09:51:56,190 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.725) internal successors, (69), 41 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) [2021-10-24 09:51:56,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 09:51:56,197 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:51:56,197 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:51:56,198 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:51:56,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:51:56,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1032073611, now seen corresponding path program 1 times [2021-10-24 09:51:56,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:51:56,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [988280324] [2021-10-24 09:51:56,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:51:56,219 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:51:56,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:51:56,221 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:51:56,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 09:51:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:51:57,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 09:51:57,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:51:57,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:57,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:51:57,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:57,825 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:51:57,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [988280324] [2021-10-24 09:51:57,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [988280324] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:51:57,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:51:57,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 09:51:57,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361958053] [2021-10-24 09:51:57,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 09:51:57,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:51:57,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 09:51:57,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 09:51:57,870 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.725) internal successors, (69), 41 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:57,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:51:57,893 INFO L93 Difference]: Finished difference Result 82 states and 136 transitions. [2021-10-24 09:51:57,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 09:51:57,895 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-24 09:51:57,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:51:57,905 INFO L225 Difference]: With dead ends: 82 [2021-10-24 09:51:57,905 INFO L226 Difference]: Without dead ends: 39 [2021-10-24 09:51:57,909 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 09:51:57,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-24 09:51:57,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-24 09:51:57,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 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) [2021-10-24 09:51:57,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2021-10-24 09:51:57,951 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 10 [2021-10-24 09:51:57,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:51:57,952 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-10-24 09:51:57,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:57,953 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2021-10-24 09:51:57,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-24 09:51:57,956 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:51:57,956 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:51:58,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 09:51:58,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:51:58,171 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:51:58,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:51:58,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1303233586, now seen corresponding path program 1 times [2021-10-24 09:51:58,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:51:58,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223410629] [2021-10-24 09:51:58,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:51:58,174 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:51:58,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:51:58,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:51:58,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 09:51:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:51:59,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 09:51:59,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:52:00,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:52:00,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:52:01,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:52:01,409 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:52:01,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223410629] [2021-10-24 09:52:01,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1223410629] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:52:01,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:52:01,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 09:52:01,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685033818] [2021-10-24 09:52:01,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:52:01,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:52:01,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:52:01,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:52:01,416 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-10-24 09:52:04,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:52:04,687 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2021-10-24 09:52:04,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:52:04,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-24 09:52:04,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:52:04,723 INFO L225 Difference]: With dead ends: 44 [2021-10-24 09:52:04,723 INFO L226 Difference]: Without dead ends: 13 [2021-10-24 09:52:04,724 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 968.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 09:52:04,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-24 09:52:04,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-24 09:52:04,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 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) [2021-10-24 09:52:04,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-10-24 09:52:04,727 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2021-10-24 09:52:04,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:52:04,728 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-10-24 09:52:04,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-10-24 09:52:04,728 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-10-24 09:52:04,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-24 09:52:04,729 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:52:04,729 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:52:04,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-24 09:52:04,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:52:04,930 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:52:04,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:52:04,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1811167824, now seen corresponding path program 1 times [2021-10-24 09:52:04,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:52:04,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49591810] [2021-10-24 09:52:04,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:52:04,932 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:52:04,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:52:04,934 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:52:04,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 09:52:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:52:06,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-24 09:52:06,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:52:08,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:52:08,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:52:14,508 WARN L838 $PredicateComparison]: unable to prove that (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53)) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start___ieee754_log10_~x c_ULTIMATE.start___ieee754_log10_~x) c_~zero_log10~0)) is different from false [2021-10-24 09:52:36,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:52:36,841 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:52:36,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49591810] [2021-10-24 09:52:36,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49591810] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:52:36,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:52:36,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-24 09:52:36,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179680185] [2021-10-24 09:52:36,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-24 09:52:36,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:52:36,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-24 09:52:36,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=55, Unknown=1, NotChecked=14, Total=90 [2021-10-24 09:52:36,844 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 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) [2021-10-24 09:52:39,183 WARN L860 $PredicateComparison]: unable to prove that (and (= (fp.div c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (_ +zero 11 53)) c_ULTIMATE.start___ieee754_log10_~x) (= (_ +zero 11 53) c_~zero_log10~0) (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53)) (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode c_ULTIMATE.start___ieee754_log10_~x c_ULTIMATE.start___ieee754_log10_~x) c_~zero_log10~0)) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-24 09:52:39,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:52:39,627 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-10-24 09:52:39,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 09:52:39,627 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-24 09:52:39,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:52:39,628 INFO L225 Difference]: With dead ends: 13 [2021-10-24 09:52:39,628 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 09:52:39,629 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 7855.0ms TimeCoverageRelationStatistics Valid=35, Invalid=81, Unknown=2, NotChecked=38, Total=156 [2021-10-24 09:52:39,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 09:52:39,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 09:52:39,630 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) [2021-10-24 09:52:39,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 09:52:39,631 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-24 09:52:39,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:52:39,632 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 09:52:39,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 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) [2021-10-24 09:52:39,632 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 09:52:39,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 09:52:39,636 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 09:52:39,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 09:52:39,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:52:39,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 09:52:39,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:52:39,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:52:39,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:52:39,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:52:39,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:52:39,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:52:39,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:52:39,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:52:39,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:52:39,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:52:46,805 WARN L207 SmtUtils]: Spent 6.68 s on a formula simplification. DAG size of input: 22 DAG size of output: 14 [2021-10-24 09:52:46,808 INFO L853 garLoopResultBuilder]: At program point L159(lines 120 160) the Hoare annotation is: (= |ULTIMATE.start___ieee754_log10_#res| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) [2021-10-24 09:52:46,809 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2021-10-24 09:52:46,809 INFO L853 garLoopResultBuilder]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2021-10-24 09:52:46,809 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 179) no Hoare annotation was computed. [2021-10-24 09:52:46,810 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 09:52:46,810 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-24 09:52:46,810 INFO L857 garLoopResultBuilder]: For program point L152-1(lines 152 157) no Hoare annotation was computed. [2021-10-24 09:52:46,811 INFO L853 garLoopResultBuilder]: At program point L152-2(lines 152 157) the Hoare annotation is: false [2021-10-24 09:52:46,811 INFO L857 garLoopResultBuilder]: For program point L152-3(lines 152 157) no Hoare annotation was computed. [2021-10-24 09:52:46,811 INFO L857 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-10-24 09:52:46,812 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 57) no Hoare annotation was computed. [2021-10-24 09:52:46,812 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 111) no Hoare annotation was computed. [2021-10-24 09:52:46,812 INFO L857 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2021-10-24 09:52:46,812 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 37 42) no Hoare annotation was computed. [2021-10-24 09:52:46,813 INFO L853 garLoopResultBuilder]: At program point L37-2(lines 37 42) the Hoare annotation is: false [2021-10-24 09:52:46,813 INFO L857 garLoopResultBuilder]: For program point L37-3(lines 37 42) no Hoare annotation was computed. [2021-10-24 09:52:46,813 INFO L857 garLoopResultBuilder]: For program point L46(lines 46 47) no Hoare annotation was computed. [2021-10-24 09:52:46,814 INFO L857 garLoopResultBuilder]: For program point L71(lines 71 87) no Hoare annotation was computed. [2021-10-24 09:52:46,814 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 63 68) no Hoare annotation was computed. [2021-10-24 09:52:46,814 INFO L853 garLoopResultBuilder]: At program point L63-2(lines 63 68) the Hoare annotation is: false [2021-10-24 09:52:46,815 INFO L857 garLoopResultBuilder]: For program point L63-3(lines 63 68) no Hoare annotation was computed. [2021-10-24 09:52:46,815 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 79) no Hoare annotation was computed. [2021-10-24 09:52:46,815 INFO L853 garLoopResultBuilder]: At program point L163(line 163) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_log10_#res| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2021-10-24 09:52:46,816 INFO L857 garLoopResultBuilder]: For program point L81(lines 81 86) no Hoare annotation was computed. [2021-10-24 09:52:46,816 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 49) no Hoare annotation was computed. [2021-10-24 09:52:46,816 INFO L857 garLoopResultBuilder]: For program point L106(lines 106 109) no Hoare annotation was computed. [2021-10-24 09:52:46,817 INFO L857 garLoopResultBuilder]: For program point L73(lines 73 78) no Hoare annotation was computed. [2021-10-24 09:52:46,817 INFO L857 garLoopResultBuilder]: For program point L98(lines 98 110) no Hoare annotation was computed. [2021-10-24 09:52:46,817 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-24 09:52:46,817 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-10-24 09:52:46,818 INFO L860 garLoopResultBuilder]: At program point L181(lines 165 182) the Hoare annotation is: true [2021-10-24 09:52:46,818 INFO L857 garLoopResultBuilder]: For program point L140-1(lines 140 144) no Hoare annotation was computed. [2021-10-24 09:52:46,818 INFO L853 garLoopResultBuilder]: At program point L140-2(lines 140 144) the Hoare annotation is: false [2021-10-24 09:52:46,819 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 09:52:46,819 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 145) no Hoare annotation was computed. [2021-10-24 09:52:46,819 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 120 160) no Hoare annotation was computed. [2021-10-24 09:52:46,819 INFO L857 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2021-10-24 09:52:46,820 INFO L857 garLoopResultBuilder]: For program point L125-1(lines 125 130) no Hoare annotation was computed. [2021-10-24 09:52:46,820 INFO L853 garLoopResultBuilder]: At program point L125-2(lines 125 130) the Hoare annotation is: (and (= (_ +zero 11 53) ~zero_log10~0) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)) ULTIMATE.start___ieee754_log10_~x)) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-24 09:52:46,820 INFO L857 garLoopResultBuilder]: For program point L125-3(lines 125 130) no Hoare annotation was computed. [2021-10-24 09:52:46,821 INFO L853 garLoopResultBuilder]: At program point L109(lines 32 111) the Hoare annotation is: false [2021-10-24 09:52:46,821 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 135) no Hoare annotation was computed. [2021-10-24 09:52:46,827 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 09:52:46,839 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,840 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,840 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,841 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,841 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,841 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,845 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,845 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,845 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,846 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,846 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,846 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,857 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,858 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,859 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,860 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,860 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,860 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,861 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,868 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,868 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,868 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,869 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,869 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 09:52:46,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 09:52:46,873 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 09:52:46,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 09:52:46,874 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:46,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:52:46 BoogieIcfgContainer [2021-10-24 09:52:46,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 09:52:46,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 09:52:46,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 09:52:46,877 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 09:52:46,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:51:56" (3/4) ... [2021-10-24 09:52:46,881 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 09:52:46,897 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-10-24 09:52:46,898 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-24 09:52:46,899 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 09:52:46,899 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 09:52:46,931 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~Pluszero~LONGDOUBLE() == zero_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-24 09:52:46,931 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) [2021-10-24 09:52:46,932 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result [2021-10-24 09:52:46,989 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 09:52:46,989 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 09:52:46,990 INFO L168 Benchmark]: Toolchain (without parser) took 86920.44 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 44.7 MB in the beginning and 59.1 MB in the end (delta: -14.4 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2021-10-24 09:52:46,991 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 65.0 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:52:46,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 499.99 ms. Allocated memory is still 65.0 MB. Free memory was 44.5 MB in the beginning and 44.3 MB in the end (delta: 239.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 09:52:46,992 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.15 ms. Allocated memory is still 65.0 MB. Free memory was 44.3 MB in the beginning and 42.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 09:52:46,993 INFO L168 Benchmark]: Boogie Preprocessor took 130.83 ms. Allocated memory is still 65.0 MB. Free memory was 42.0 MB in the beginning and 39.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 09:52:46,993 INFO L168 Benchmark]: RCFGBuilder took 35284.63 ms. Allocated memory is still 65.0 MB. Free memory was 39.9 MB in the beginning and 40.8 MB in the end (delta: -959.9 kB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2021-10-24 09:52:46,994 INFO L168 Benchmark]: TraceAbstraction took 50787.18 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 40.3 MB in the beginning and 65.4 MB in the end (delta: -25.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. [2021-10-24 09:52:46,994 INFO L168 Benchmark]: Witness Printer took 112.90 ms. Allocated memory is still 86.0 MB. Free memory was 64.8 MB in the beginning and 59.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-24 09:52:46,997 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 65.0 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 499.99 ms. Allocated memory is still 65.0 MB. Free memory was 44.5 MB in the beginning and 44.3 MB in the end (delta: 239.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 97.15 ms. Allocated memory is still 65.0 MB. Free memory was 44.3 MB in the beginning and 42.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 130.83 ms. Allocated memory is still 65.0 MB. Free memory was 42.0 MB in the beginning and 39.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 35284.63 ms. Allocated memory is still 65.0 MB. Free memory was 39.9 MB in the beginning and 40.8 MB in the end (delta: -959.9 kB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 50787.18 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 40.3 MB in the beginning and 65.4 MB in the end (delta: -25.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. * Witness Printer took 112.90 ms. Allocated memory is still 86.0 MB. Free memory was 64.8 MB in the beginning and 59.1 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 177]: 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, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50662.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 15.3ms, AutomataDifference: 6168.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 6970.1ms, InitialAbstractionConstructionTime: 12.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 69 SDtfs, 12 SDslu, 18 SDs, 0 SdLazy, 14 SolverSat, 2 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3102.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 8823.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 26.7ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 70 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 49.3ms HoareSimplificationTime, 10 FomulaSimplificationsInter, 36 FormulaSimplificationTreeSizeReductionInter, 6912.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 61.1ms SsaConstructionTime, 3301.3ms SatisfiabilityAnalysisTime, 33217.7ms InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 10 QuantifiedInterpolants, 503 SizeOfPredicates, 19 NumberOfNonLiveVariables, 178 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant [2021-10-24 09:52:47,011 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,011 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,012 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,012 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,012 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,012 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,013 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,013 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,013 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,014 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,014 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,014 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant [2021-10-24 09:52:47,015 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,016 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,016 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,016 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,016 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,016 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,017 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,017 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,017 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,018 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,018 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,018 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 125]: Loop Invariant [2021-10-24 09:52:47,019 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 09:52:47,019 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 09:52:47,019 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-24 09:52:47,020 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 09:52:47,020 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-24 09:52:47,020 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~Pluszero~LONGDOUBLE() == zero_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2021-10-24 09:52:47,238 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-24 09:52:47,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30b4816f-1b6b-4dad-baa4-fabc11524cc3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...