./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs --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 bd6800513a0c85eb15605681f4c7c21ff95d3a8c ..................................................................................................................................................................................................................................................................................................................... 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_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs --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 bd6800513a0c85eb15605681f4c7c21ff95d3a8c ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:06:40,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:06:40,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:06:40,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:06:40,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:06:40,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:06:40,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:06:40,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:06:40,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:06:40,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:06:40,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:06:40,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:06:40,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:06:40,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:06:40,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:06:40,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:06:40,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:06:40,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:06:40,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:06:40,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:06:40,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:06:40,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:06:41,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:06:41,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:06:41,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:06:41,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:06:41,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:06:41,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:06:41,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:06:41,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:06:41,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:06:41,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:06:41,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:06:41,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:06:41,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:06:41,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:06:41,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:06:41,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:06:41,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:06:41,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:06:41,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:06:41,026 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 03:06:41,068 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:06:41,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:06:41,070 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:06:41,070 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:06:41,070 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:06:41,071 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:06:41,071 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:06:41,071 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:06:41,071 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:06:41,072 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:06:41,073 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:06:41,073 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:06:41,073 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:06:41,073 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:06:41,074 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:06:41,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:06:41,075 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:06:41,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:06:41,075 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:06:41,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:06:41,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:06:41,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:06:41,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:06:41,076 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:06:41,076 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:06:41,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:06:41,077 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:06:41,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:06:41,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:06:41,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:06:41,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:06:41,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:06:41,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:06:41,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:06:41,080 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:06:41,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:06:41,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:06:41,081 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:06:41,081 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:06:41,081 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_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd6800513a0c85eb15605681f4c7c21ff95d3a8c [2021-10-16 03:06:41,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:06:41,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:06:41,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:06:41,419 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:06:41,420 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:06:41,421 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2021-10-16 03:06:41,493 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/data/325c9cfb0/8767a3432f124e48b834a4c69369714d/FLAG7b8bcc541 [2021-10-16 03:06:41,933 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:06:41,934 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2021-10-16 03:06:41,947 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/data/325c9cfb0/8767a3432f124e48b834a4c69369714d/FLAG7b8bcc541 [2021-10-16 03:06:42,318 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/data/325c9cfb0/8767a3432f124e48b834a4c69369714d [2021-10-16 03:06:42,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:06:42,325 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:06:42,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:06:42,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:06:42,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:06:42,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:06:42" (1/1) ... [2021-10-16 03:06:42,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49849908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:42, skipping insertion in model container [2021-10-16 03:06:42,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:06:42" (1/1) ... [2021-10-16 03:06:42,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:06:42,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:06:42,701 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_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/sv-benchmarks/c/float-newlib/float_req_bl_0480.c[4489,4502] [2021-10-16 03:06:42,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:06:42,718 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:06:42,770 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_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/sv-benchmarks/c/float-newlib/float_req_bl_0480.c[4489,4502] [2021-10-16 03:06:42,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:06:42,786 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:06:42,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:42 WrapperNode [2021-10-16 03:06:42,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:06:42,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:06:42,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:06:42,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:06:42,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:42" (1/1) ... [2021-10-16 03:06:42,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:42" (1/1) ... [2021-10-16 03:06:42,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:06:42,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:06:42,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:06:42,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:06:42,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:42" (1/1) ... [2021-10-16 03:06:42,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:42" (1/1) ... [2021-10-16 03:06:42,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:42" (1/1) ... [2021-10-16 03:06:42,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:42" (1/1) ... [2021-10-16 03:06:42,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:42" (1/1) ... [2021-10-16 03:06:42,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:42" (1/1) ... [2021-10-16 03:06:42,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:42" (1/1) ... [2021-10-16 03:06:42,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:06:42,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:06:42,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:06:42,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:06:42,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:42" (1/1) ... [2021-10-16 03:06:42,918 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:06:42,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:06:42,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:06:42,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:06:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 03:06:42,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:06:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-16 03:06:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 03:06:42,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-16 03:06:42,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:06:42,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:06:42,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 03:06:42,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 03:06:43,907 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:06:43,907 INFO L299 CfgBuilder]: Removed 32 assume(true) statements. [2021-10-16 03:06:43,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:06:43 BoogieIcfgContainer [2021-10-16 03:06:43,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:06:43,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:06:43,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:06:43,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:06:43,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:06:42" (1/3) ... [2021-10-16 03:06:43,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1780eed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:06:43, skipping insertion in model container [2021-10-16 03:06:43,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:42" (2/3) ... [2021-10-16 03:06:43,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1780eed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:06:43, skipping insertion in model container [2021-10-16 03:06:43,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:06:43" (3/3) ... [2021-10-16 03:06:43,919 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2021-10-16 03:06:43,924 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:06:43,925 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:06:43,994 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:06:44,005 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 03:06:44,006 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:06:44,026 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 49 states have (on average 1.7142857142857142) internal successors, (84), 50 states have internal predecessors, (84), 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) [2021-10-16 03:06:44,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 03:06:44,033 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:44,034 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:06:44,034 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:44,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:44,045 INFO L82 PathProgramCache]: Analyzing trace with hash 441339467, now seen corresponding path program 1 times [2021-10-16 03:06:44,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:06:44,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495714805] [2021-10-16 03:06:44,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:44,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:06:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:06:44,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:06:44,262 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:06:44,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495714805] [2021-10-16 03:06:44,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495714805] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:06:44,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:06:44,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 03:06:44,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413461558] [2021-10-16 03:06:44,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 03:06:44,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:06:44,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 03:06:44,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:06:44,289 INFO L87 Difference]: Start difference. First operand has 51 states, 49 states have (on average 1.7142857142857142) internal successors, (84), 50 states have internal predecessors, (84), 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) [2021-10-16 03:06:44,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:06:44,314 INFO L93 Difference]: Finished difference Result 101 states and 167 transitions. [2021-10-16 03:06:44,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 03:06:44,315 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 [2021-10-16 03:06:44,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:06:44,326 INFO L225 Difference]: With dead ends: 101 [2021-10-16 03:06:44,326 INFO L226 Difference]: Without dead ends: 49 [2021-10-16 03:06:44,329 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 [2021-10-16 03:06:44,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-16 03:06:44,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-16 03:06:44,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 48 states have internal predecessors, (65), 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) [2021-10-16 03:06:44,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 65 transitions. [2021-10-16 03:06:44,369 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 65 transitions. Word has length 8 [2021-10-16 03:06:44,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:06:44,370 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 65 transitions. [2021-10-16 03:06:44,370 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) [2021-10-16 03:06:44,370 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2021-10-16 03:06:44,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 03:06:44,371 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:06:44,371 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:06:44,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 03:06:44,372 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:06:44,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:06:44,373 INFO L82 PathProgramCache]: Analyzing trace with hash 532732580, now seen corresponding path program 1 times [2021-10-16 03:06:44,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:06:44,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604604820] [2021-10-16 03:06:44,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:06:44,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:06:44,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:06:44,421 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 03:06:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 03:06:44,501 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 03:06:44,502 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 03:06:44,504 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:06:44,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 03:06:44,513 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:06:44,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:06:44 BoogieIcfgContainer [2021-10-16 03:06:44,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:06:44,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:06:44,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:06:44,547 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:06:44,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:06:43" (3/4) ... [2021-10-16 03:06:44,557 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 03:06:44,557 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:06:44,560 INFO L168 Benchmark]: Toolchain (without parser) took 2233.98 ms. Allocated memory was 115.3 MB in the beginning and 159.4 MB in the end (delta: 44.0 MB). Free memory was 78.9 MB in the beginning and 118.2 MB in the end (delta: -39.4 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:44,561 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 115.3 MB. Free memory was 85.0 MB in the beginning and 85.0 MB in the end (delta: 29.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:06:44,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 457.52 ms. Allocated memory is still 115.3 MB. Free memory was 78.6 MB in the beginning and 85.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:44,566 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.73 ms. Allocated memory is still 115.3 MB. Free memory was 85.9 MB in the beginning and 83.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:44,570 INFO L168 Benchmark]: Boogie Preprocessor took 45.04 ms. Allocated memory is still 115.3 MB. Free memory was 83.2 MB in the beginning and 81.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:44,571 INFO L168 Benchmark]: RCFGBuilder took 1014.16 ms. Allocated memory is still 115.3 MB. Free memory was 81.1 MB in the beginning and 50.3 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:06:44,571 INFO L168 Benchmark]: TraceAbstraction took 634.18 ms. Allocated memory was 115.3 MB in the beginning and 159.4 MB in the end (delta: 44.0 MB). Free memory was 49.7 MB in the beginning and 118.2 MB in the end (delta: -68.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:06:44,572 INFO L168 Benchmark]: Witness Printer took 10.51 ms. Allocated memory is still 159.4 MB. Free memory is still 118.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:06:44,575 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 115.3 MB. Free memory was 85.0 MB in the beginning and 85.0 MB in the end (delta: 29.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 457.52 ms. Allocated memory is still 115.3 MB. Free memory was 78.6 MB in the beginning and 85.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.73 ms. Allocated memory is still 115.3 MB. Free memory was 85.9 MB in the beginning and 83.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.04 ms. Allocated memory is still 115.3 MB. Free memory was 83.2 MB in the beginning and 81.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1014.16 ms. Allocated memory is still 115.3 MB. Free memory was 81.1 MB in the beginning and 50.3 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 634.18 ms. Allocated memory was 115.3 MB in the beginning and 159.4 MB in the end (delta: 44.0 MB). Free memory was 49.7 MB in the beginning and 118.2 MB in the end (delta: -68.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 10.51 ms. Allocated memory is still 159.4 MB. Free memory is still 118.2 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: 184]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 183, overapproximation of someUnaryDOUBLEoperation at line 86, overapproximation of bitwiseAnd at line 100, overapproximation of someBinaryArithmeticFLOAToperation at line 105. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L83-L90] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; [L179] float x = 1.0f; [L93] float z, p, q, r, w, s, c, df; [L94] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L96] ieee_float_shape_type gf_u; [L97] gf_u.value = (x) [L98] EXPR gf_u.word [L98] (hx) = gf_u.word [L100] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L101] COND TRUE ix == 0x3f800000 [L102] COND FALSE !(hx > 0) [L105] return pi + (float)2.0 * pio2_lo_acos; VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L180] float res = __ieee754_acosf(x); [L183] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L183] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L184] reach_error() VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 518.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 11.6ms, AutomataDifference: 56.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 67 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=51occurred 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: 24.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.6ms SsaConstructionTime, 78.4ms SatisfiabilityAnalysisTime, 70.9ms 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 [2021-10-16 03:06:44,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/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-5709675 [2021-10-16 03:06:47,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:06:47,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:06:47,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:06:47,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:06:47,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:06:47,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:06:47,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:06:47,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:06:47,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:06:47,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:06:47,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:06:47,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:06:47,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:06:47,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:06:47,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:06:47,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:06:47,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:06:47,160 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:06:47,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:06:47,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:06:47,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:06:47,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:06:47,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:06:47,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:06:47,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:06:47,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:06:47,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:06:47,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:06:47,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:06:47,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:06:47,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:06:47,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:06:47,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:06:47,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:06:47,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:06:47,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:06:47,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:06:47,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:06:47,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:06:47,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:06:47,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 03:06:47,253 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:06:47,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:06:47,254 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:06:47,254 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:06:47,255 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:06:47,255 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:06:47,255 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:06:47,255 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:06:47,256 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:06:47,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:06:47,257 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:06:47,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:06:47,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:06:47,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:06:47,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:06:47,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:06:47,258 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:06:47,259 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 03:06:47,259 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 03:06:47,259 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:06:47,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:06:47,260 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:06:47,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:06:47,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:06:47,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 03:06:47,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:06:47,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:06:47,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:06:47,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:06:47,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:06:47,262 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 03:06:47,262 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 03:06:47,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:06:47,263 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:06:47,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:06:47,263 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_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd6800513a0c85eb15605681f4c7c21ff95d3a8c [2021-10-16 03:06:47,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:06:47,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:06:47,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:06:47,697 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:06:47,698 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:06:47,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2021-10-16 03:06:47,787 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/data/fd8153ec5/32e8c23a587e4a488815feabfc5d4576/FLAG8ec407c69 [2021-10-16 03:06:48,332 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:06:48,333 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2021-10-16 03:06:48,345 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/data/fd8153ec5/32e8c23a587e4a488815feabfc5d4576/FLAG8ec407c69 [2021-10-16 03:06:48,697 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/data/fd8153ec5/32e8c23a587e4a488815feabfc5d4576 [2021-10-16 03:06:48,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:06:48,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:06:48,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:06:48,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:06:48,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:06:48,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:06:48" (1/1) ... [2021-10-16 03:06:48,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d5e5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:48, skipping insertion in model container [2021-10-16 03:06:48,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:06:48" (1/1) ... [2021-10-16 03:06:48,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:06:48,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:06:49,020 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_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/sv-benchmarks/c/float-newlib/float_req_bl_0480.c[4489,4502] [2021-10-16 03:06:49,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:06:49,041 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:06:49,146 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_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/sv-benchmarks/c/float-newlib/float_req_bl_0480.c[4489,4502] [2021-10-16 03:06:49,147 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:06:49,165 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:06:49,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:49 WrapperNode [2021-10-16 03:06:49,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:06:49,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:06:49,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:06:49,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:06:49,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:49" (1/1) ... [2021-10-16 03:06:49,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:49" (1/1) ... [2021-10-16 03:06:49,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:06:49,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:06:49,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:06:49,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:06:49,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:49" (1/1) ... [2021-10-16 03:06:49,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:49" (1/1) ... [2021-10-16 03:06:49,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:49" (1/1) ... [2021-10-16 03:06:49,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:49" (1/1) ... [2021-10-16 03:06:49,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:49" (1/1) ... [2021-10-16 03:06:49,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:49" (1/1) ... [2021-10-16 03:06:49,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:49" (1/1) ... [2021-10-16 03:06:49,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:06:49,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:06:49,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:06:49,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:06:49,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:49" (1/1) ... [2021-10-16 03:06:49,379 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:06:49,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:06:49,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:06:49,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:06:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 03:06:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:06:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-16 03:06:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 03:06:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:06:49,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:06:49,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-16 03:06:49,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 03:06:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 03:07:00,458 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:07:00,466 INFO L299 CfgBuilder]: Removed 32 assume(true) statements. [2021-10-16 03:07:00,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:07:00 BoogieIcfgContainer [2021-10-16 03:07:00,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:07:00,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:07:00,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:07:00,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:07:00,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:06:48" (1/3) ... [2021-10-16 03:07:00,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2fdbe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:07:00, skipping insertion in model container [2021-10-16 03:07:00,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:06:49" (2/3) ... [2021-10-16 03:07:00,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2fdbe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:07:00, skipping insertion in model container [2021-10-16 03:07:00,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:07:00" (3/3) ... [2021-10-16 03:07:00,482 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2021-10-16 03:07:00,488 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:07:00,488 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:07:00,547 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:07:00,552 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 03:07:00,552 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:07:00,568 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 74 states have (on average 1.6891891891891893) internal successors, (125), 75 states have internal predecessors, (125), 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) [2021-10-16 03:07:00,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 03:07:00,573 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:00,574 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:07:00,575 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:00,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:00,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1036093437, now seen corresponding path program 1 times [2021-10-16 03:07:00,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:00,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357215514] [2021-10-16 03:07:00,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:00,592 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:00,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:00,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:00,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 03:07:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:01,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 03:07:01,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:01,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:07:01,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:01,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:07:01,394 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:01,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357215514] [2021-10-16 03:07:01,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357215514] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:01,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:07:01,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 03:07:01,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662492001] [2021-10-16 03:07:01,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 03:07:01,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:01,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 03:07:01,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 03:07:01,442 INFO L87 Difference]: Start difference. First operand has 76 states, 74 states have (on average 1.6891891891891893) internal successors, (125), 75 states have internal predecessors, (125), 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) [2021-10-16 03:07:01,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:01,479 INFO L93 Difference]: Finished difference Result 150 states and 248 transitions. [2021-10-16 03:07:01,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 03:07:01,481 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 [2021-10-16 03:07:01,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:01,493 INFO L225 Difference]: With dead ends: 150 [2021-10-16 03:07:01,494 INFO L226 Difference]: Without dead ends: 73 [2021-10-16 03:07:01,496 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 [2021-10-16 03:07:01,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-16 03:07:01,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-10-16 03:07:01,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 72 states have internal predecessors, (101), 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) [2021-10-16 03:07:01,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2021-10-16 03:07:01,535 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 10 [2021-10-16 03:07:01,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:01,536 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2021-10-16 03:07:01,536 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) [2021-10-16 03:07:01,536 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2021-10-16 03:07:01,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 03:07:01,537 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:01,537 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:07:01,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:01,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:07:01,744 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:01,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:01,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1299213760, now seen corresponding path program 1 times [2021-10-16 03:07:01,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:01,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1940489199] [2021-10-16 03:07:01,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:01,746 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:01,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:01,747 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:01,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 03:07:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:02,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 03:07:02,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:02,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:07:02,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:02,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:07:02,780 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:02,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1940489199] [2021-10-16 03:07:02,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1940489199] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:02,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:07:02,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-16 03:07:02,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859148232] [2021-10-16 03:07:02,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 03:07:02,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:02,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 03:07:02,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 03:07:02,784 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-10-16 03:07:11,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:11,422 INFO L93 Difference]: Finished difference Result 85 states and 112 transitions. [2021-10-16 03:07:11,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:07:11,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 [2021-10-16 03:07:11,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:11,641 INFO L225 Difference]: With dead ends: 85 [2021-10-16 03:07:11,642 INFO L226 Difference]: Without dead ends: 82 [2021-10-16 03:07:11,642 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 287.5ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:07:11,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-16 03:07:11,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 75. [2021-10-16 03:07:11,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.3918918918918919) internal successors, (103), 74 states have internal predecessors, (103), 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) [2021-10-16 03:07:11,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2021-10-16 03:07:11,656 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 11 [2021-10-16 03:07:11,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:11,656 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2021-10-16 03:07:11,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-10-16 03:07:11,657 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2021-10-16 03:07:11,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 03:07:11,658 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:11,658 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:07:11,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-16 03:07:11,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:07:11,873 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:11,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:11,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1297366718, now seen corresponding path program 1 times [2021-10-16 03:07:11,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:11,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [564347114] [2021-10-16 03:07:11,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:11,875 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:11,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:11,886 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:11,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 03:07:12,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:12,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 03:07:12,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:12,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:07:12,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:13,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:07:13,269 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:13,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [564347114] [2021-10-16 03:07:13,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [564347114] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:13,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:07:13,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 03:07:13,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919563063] [2021-10-16 03:07:13,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 03:07:13,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:13,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 03:07:13,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 03:07:13,272 INFO L87 Difference]: Start difference. First operand 75 states and 103 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) [2021-10-16 03:07:16,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:16,924 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2021-10-16 03:07:17,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:07:17,037 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 [2021-10-16 03:07:17,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:17,039 INFO L225 Difference]: With dead ends: 93 [2021-10-16 03:07:17,039 INFO L226 Difference]: Without dead ends: 60 [2021-10-16 03:07:17,040 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 421.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-16 03:07:17,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-10-16 03:07:17,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2021-10-16 03:07:17,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.32) internal successors, (66), 50 states have internal predecessors, (66), 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) [2021-10-16 03:07:17,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2021-10-16 03:07:17,049 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 11 [2021-10-16 03:07:17,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:17,050 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2021-10-16 03:07:17,050 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) [2021-10-16 03:07:17,050 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2021-10-16 03:07:17,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 03:07:17,051 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:17,052 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:07:17,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:17,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:07:17,270 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:17,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:17,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1092345056, now seen corresponding path program 1 times [2021-10-16 03:07:17,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:17,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270400651] [2021-10-16 03:07:17,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:17,272 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:17,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:17,273 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:17,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 03:07:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:17,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 03:07:17,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:18,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:07:18,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:19,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:07:19,201 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:19,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270400651] [2021-10-16 03:07:19,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270400651] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:19,202 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:07:19,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-16 03:07:19,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575833453] [2021-10-16 03:07:19,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 03:07:19,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:19,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 03:07:19,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-16 03:07:19,204 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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) [2021-10-16 03:07:19,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:19,654 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2021-10-16 03:07:19,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 03:07:19,660 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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 [2021-10-16 03:07:19,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:19,661 INFO L225 Difference]: With dead ends: 58 [2021-10-16 03:07:19,661 INFO L226 Difference]: Without dead ends: 16 [2021-10-16 03:07:19,662 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1057.4ms TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-16 03:07:19,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-16 03:07:19,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-16 03:07:19,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:07:19,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-10-16 03:07:19,667 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2021-10-16 03:07:19,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:19,667 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-10-16 03:07:19,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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) [2021-10-16 03:07:19,668 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-10-16 03:07:19,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-16 03:07:19,669 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:07:19,669 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:07:19,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:19,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:07:19,889 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:07:19,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:07:19,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1064969237, now seen corresponding path program 1 times [2021-10-16 03:07:19,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:07:19,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489715162] [2021-10-16 03:07:19,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:07:19,890 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:07:19,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:07:19,891 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:07:19,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 03:07:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:07:20,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 03:07:20,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:07:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:07:21,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:07:22,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:07:22,829 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:07:22,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489715162] [2021-10-16 03:07:22,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [489715162] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:07:22,830 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:07:22,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-10-16 03:07:22,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64688574] [2021-10-16 03:07:22,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-16 03:07:22,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:07:22,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-16 03:07:22,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-10-16 03:07:22,832 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:07:23,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:07:23,702 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-10-16 03:07:23,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 03:07:23,703 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-16 03:07:23,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:07:23,703 INFO L225 Difference]: With dead ends: 16 [2021-10-16 03:07:23,703 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 03:07:23,704 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2295.4ms TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2021-10-16 03:07:23,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 03:07:23,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 03:07:23,705 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) [2021-10-16 03:07:23,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 03:07:23,705 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-16 03:07:23,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:07:23,705 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 03:07:23,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 03:07:23,706 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 03:07:23,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 03:07:23,709 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:07:23,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 03:07:23,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:07:23,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 03:07:23,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:23,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:23,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:23,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:23,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:23,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:23,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:23,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:23,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:23,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:23,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:23,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:23,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:23,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:24,000 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:24,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:07:24,660 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-16 03:07:24,660 INFO L853 garLoopResultBuilder]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2021-10-16 03:07:24,660 INFO L857 garLoopResultBuilder]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2021-10-16 03:07:24,661 INFO L853 garLoopResultBuilder]: At program point L52-6(lines 52 61) the Hoare annotation is: false [2021-10-16 03:07:24,661 INFO L857 garLoopResultBuilder]: For program point L52-7(lines 16 81) no Hoare annotation was computed. [2021-10-16 03:07:24,661 INFO L857 garLoopResultBuilder]: For program point L102(lines 102 105) no Hoare annotation was computed. [2021-10-16 03:07:24,661 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 03:07:24,662 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 41) no Hoare annotation was computed. [2021-10-16 03:07:24,662 INFO L857 garLoopResultBuilder]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2021-10-16 03:07:24,662 INFO L857 garLoopResultBuilder]: For program point L37-3(lines 37 41) no Hoare annotation was computed. [2021-10-16 03:07:24,662 INFO L857 garLoopResultBuilder]: For program point L37-5(lines 37 41) no Hoare annotation was computed. [2021-10-16 03:07:24,662 INFO L857 garLoopResultBuilder]: For program point L54(lines 54 58) no Hoare annotation was computed. [2021-10-16 03:07:24,663 INFO L857 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-10-16 03:07:24,663 INFO L857 garLoopResultBuilder]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2021-10-16 03:07:24,663 INFO L853 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2021-10-16 03:07:24,663 INFO L857 garLoopResultBuilder]: For program point L54-3(lines 54 58) no Hoare annotation was computed. [2021-10-16 03:07:24,664 INFO L857 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-10-16 03:07:24,664 INFO L857 garLoopResultBuilder]: For program point L54-5(lines 54 58) no Hoare annotation was computed. [2021-10-16 03:07:24,664 INFO L857 garLoopResultBuilder]: For program point L21-5(lines 21 25) no Hoare annotation was computed. [2021-10-16 03:07:24,664 INFO L853 garLoopResultBuilder]: At program point L21-6(lines 21 25) the Hoare annotation is: false [2021-10-16 03:07:24,665 INFO L857 garLoopResultBuilder]: For program point L21-7(lines 21 25) no Hoare annotation was computed. [2021-10-16 03:07:24,665 INFO L853 garLoopResultBuilder]: At program point L170(lines 161 171) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) |ULTIMATE.start_main_#t~short18| (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start_main_~res~0)) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)))) (exists ((ULTIMATE.start___ieee754_acosf_~hx~1 (_ BitVec 32))) (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (= ULTIMATE.start___ieee754_acosf_~ix~1 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_acosf_~hx~1)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start___signbit_float_~x)) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32))) [2021-10-16 03:07:24,665 INFO L857 garLoopResultBuilder]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2021-10-16 03:07:24,665 INFO L853 garLoopResultBuilder]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2021-10-16 03:07:24,666 INFO L857 garLoopResultBuilder]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2021-10-16 03:07:24,666 INFO L857 garLoopResultBuilder]: For program point L38-7(lines 38 39) no Hoare annotation was computed. [2021-10-16 03:07:24,666 INFO L853 garLoopResultBuilder]: At program point L38-8(lines 38 39) the Hoare annotation is: false [2021-10-16 03:07:24,666 INFO L857 garLoopResultBuilder]: For program point L38-9(lines 38 39) no Hoare annotation was computed. [2021-10-16 03:07:24,667 INFO L857 garLoopResultBuilder]: For program point L121(lines 121 158) no Hoare annotation was computed. [2021-10-16 03:07:24,667 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 138 142) no Hoare annotation was computed. [2021-10-16 03:07:24,667 INFO L853 garLoopResultBuilder]: At program point L138-2(lines 138 142) the Hoare annotation is: false [2021-10-16 03:07:24,667 INFO L860 garLoopResultBuilder]: At program point L188(lines 173 189) the Hoare annotation is: true [2021-10-16 03:07:24,667 INFO L857 garLoopResultBuilder]: For program point L106(lines 106 108) no Hoare annotation was computed. [2021-10-16 03:07:24,668 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 03:07:24,668 INFO L853 garLoopResultBuilder]: At program point L157(lines 92 159) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (exists ((ULTIMATE.start___ieee754_acosf_~hx~1 (_ BitVec 32))) (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (= ULTIMATE.start___ieee754_acosf_~ix~1 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_acosf_~hx~1))))) [2021-10-16 03:07:24,668 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2021-10-16 03:07:24,668 INFO L853 garLoopResultBuilder]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2021-10-16 03:07:24,669 INFO L857 garLoopResultBuilder]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2021-10-16 03:07:24,669 INFO L857 garLoopResultBuilder]: For program point L75-5(lines 75 79) no Hoare annotation was computed. [2021-10-16 03:07:24,669 INFO L853 garLoopResultBuilder]: At program point L75-6(lines 75 79) the Hoare annotation is: false [2021-10-16 03:07:24,669 INFO L857 garLoopResultBuilder]: For program point L75-7(lines 75 79) no Hoare annotation was computed. [2021-10-16 03:07:24,670 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 158) no Hoare annotation was computed. [2021-10-16 03:07:24,670 INFO L857 garLoopResultBuilder]: For program point L143(lines 143 147) no Hoare annotation was computed. [2021-10-16 03:07:24,670 INFO L857 garLoopResultBuilder]: For program point L110(lines 110 111) no Hoare annotation was computed. [2021-10-16 03:07:24,670 INFO L857 garLoopResultBuilder]: For program point L143-1(lines 133 158) no Hoare annotation was computed. [2021-10-16 03:07:24,670 INFO L857 garLoopResultBuilder]: For program point L143-2(lines 143 147) no Hoare annotation was computed. [2021-10-16 03:07:24,671 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-10-16 03:07:24,671 INFO L857 garLoopResultBuilder]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2021-10-16 03:07:24,671 INFO L857 garLoopResultBuilder]: For program point L44-3(lines 44 45) no Hoare annotation was computed. [2021-10-16 03:07:24,671 INFO L857 garLoopResultBuilder]: For program point L44-5(lines 44 45) no Hoare annotation was computed. [2021-10-16 03:07:24,672 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 03:07:24,672 INFO L857 garLoopResultBuilder]: For program point L28(lines 28 29) no Hoare annotation was computed. [2021-10-16 03:07:24,672 INFO L857 garLoopResultBuilder]: For program point L28-1(lines 28 29) no Hoare annotation was computed. [2021-10-16 03:07:24,672 INFO L857 garLoopResultBuilder]: For program point L95-1(lines 95 99) no Hoare annotation was computed. [2021-10-16 03:07:24,672 INFO L853 garLoopResultBuilder]: At program point L95-2(lines 95 99) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) [2021-10-16 03:07:24,673 INFO L857 garLoopResultBuilder]: For program point L95-3(lines 95 99) no Hoare annotation was computed. [2021-10-16 03:07:24,673 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-10-16 03:07:24,673 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2021-10-16 03:07:24,673 INFO L853 garLoopResultBuilder]: At program point L80(lines 16 81) the Hoare annotation is: false [2021-10-16 03:07:24,673 INFO L853 garLoopResultBuilder]: At program point L80-1(lines 16 81) the Hoare annotation is: false [2021-10-16 03:07:24,674 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-10-16 03:07:24,674 INFO L857 garLoopResultBuilder]: For program point L31-1(lines 31 32) no Hoare annotation was computed. [2021-10-16 03:07:24,674 INFO L857 garLoopResultBuilder]: For program point L164-1(lines 164 168) no Hoare annotation was computed. [2021-10-16 03:07:24,674 INFO L853 garLoopResultBuilder]: At program point L164-2(lines 164 168) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) |ULTIMATE.start_main_#t~short18| (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start_main_~res~0)) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (exists ((ULTIMATE.start___ieee754_acosf_~hx~1 (_ BitVec 32))) (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (= ULTIMATE.start___ieee754_acosf_~ix~1 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_acosf_~hx~1)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start___signbit_float_~x))) [2021-10-16 03:07:24,675 INFO L857 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2021-10-16 03:07:24,675 INFO L857 garLoopResultBuilder]: For program point L164-3(lines 164 168) no Hoare annotation was computed. [2021-10-16 03:07:24,675 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 03:07:24,675 INFO L857 garLoopResultBuilder]: For program point L65-2(lines 65 71) no Hoare annotation was computed. [2021-10-16 03:07:24,676 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 184) no Hoare annotation was computed. [2021-10-16 03:07:24,676 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-10-16 03:07:24,676 INFO L857 garLoopResultBuilder]: For program point L33-1(lines 33 34) no Hoare annotation was computed. [2021-10-16 03:07:24,676 INFO L857 garLoopResultBuilder]: For program point L67(lines 67 70) no Hoare annotation was computed. [2021-10-16 03:07:24,677 INFO L857 garLoopResultBuilder]: For program point L67-3(lines 67 70) no Hoare annotation was computed. [2021-10-16 03:07:24,677 INFO L857 garLoopResultBuilder]: For program point L183(line 183) no Hoare annotation was computed. [2021-10-16 03:07:24,677 INFO L857 garLoopResultBuilder]: For program point L183-2(lines 183 186) no Hoare annotation was computed. [2021-10-16 03:07:24,677 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 108) no Hoare annotation was computed. [2021-10-16 03:07:24,682 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:07:24,690 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,691 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,692 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,692 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,692 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,692 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,693 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,693 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,699 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,699 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,699 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,700 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,700 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,700 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,700 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,707 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,710 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,710 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,710 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,710 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,710 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,711 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,711 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,712 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,712 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,712 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,712 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,714 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,714 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:07:24 BoogieIcfgContainer [2021-10-16 03:07:24,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:07:24,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:07:24,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:07:24,716 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:07:24,717 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:07:00" (3/4) ... [2021-10-16 03:07:24,719 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 03:07:24,734 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2021-10-16 03:07:24,735 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-16 03:07:24,735 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 03:07:24,736 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 03:07:24,760 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x) [2021-10-16 03:07:24,760 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && (\exists ULTIMATE.start___ieee754_acosf_~hx~1 : bv32 :: (\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_acosf_~hx~1[31:31], ULTIMATE.start___ieee754_acosf_~hx~1[30:23], ULTIMATE.start___ieee754_acosf_~hx~1[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_acosf_~hx~1)) [2021-10-16 03:07:24,761 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && (\exists ULTIMATE.start___ieee754_acosf_~hx~1 : bv32 :: (\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_acosf_~hx~1[31:31], ULTIMATE.start___ieee754_acosf_~hx~1[30:23], ULTIMATE.start___ieee754_acosf_~hx~1[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_acosf_~hx~1))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x) [2021-10-16 03:07:24,762 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) && (\exists ULTIMATE.start___ieee754_acosf_~hx~1 : bv32 :: (\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_acosf_~hx~1[31:31], ULTIMATE.start___ieee754_acosf_~hx~1[30:23], ULTIMATE.start___ieee754_acosf_~hx~1[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_acosf_~hx~1))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && \result == 0bv32 [2021-10-16 03:07:24,804 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 03:07:24,804 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:07:24,805 INFO L168 Benchmark]: Toolchain (without parser) took 36097.11 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 43.3 MB in the beginning and 38.0 MB in the end (delta: 5.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:07:24,806 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:07:24,806 INFO L168 Benchmark]: CACSL2BoogieTranslator took 455.98 ms. Allocated memory is still 62.9 MB. Free memory was 43.1 MB in the beginning and 44.1 MB in the end (delta: -1.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 03:07:24,807 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.05 ms. Allocated memory is still 62.9 MB. Free memory was 43.9 MB in the beginning and 41.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:07:24,807 INFO L168 Benchmark]: Boogie Preprocessor took 107.75 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 38.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:07:24,808 INFO L168 Benchmark]: RCFGBuilder took 11101.39 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 38.9 MB in the beginning and 53.5 MB in the end (delta: -14.6 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:07:24,808 INFO L168 Benchmark]: TraceAbstraction took 24242.84 ms. Allocated memory is still 81.8 MB. Free memory was 52.8 MB in the beginning and 45.4 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-16 03:07:24,808 INFO L168 Benchmark]: Witness Printer took 88.34 ms. Allocated memory is still 81.8 MB. Free memory was 45.4 MB in the beginning and 38.0 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 03:07:24,810 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 455.98 ms. Allocated memory is still 62.9 MB. Free memory was 43.1 MB in the beginning and 44.1 MB in the end (delta: -1.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 92.05 ms. Allocated memory is still 62.9 MB. Free memory was 43.9 MB in the beginning and 41.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 107.75 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 38.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11101.39 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 38.9 MB in the beginning and 53.5 MB in the end (delta: -14.6 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 24242.84 ms. Allocated memory is still 81.8 MB. Free memory was 52.8 MB in the beginning and 45.4 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Witness Printer took 88.34 ms. Allocated memory is still 81.8 MB. Free memory was 45.4 MB in the beginning and 38.0 MB in the end (delta: 7.4 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 184]: 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, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24136.7ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 13.1ms, AutomataDifference: 14037.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 720.1ms, InitialAbstractionConstructionTime: 11.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 282 SDtfs, 201 SDslu, 284 SDs, 0 SdLazy, 45 SolverSat, 10 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 11879.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4062.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 51.8ms AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 21 NumberOfFragments, 191 HoareAnnotationTreeSize, 16 FomulaSimplifications, 78 FormulaSimplificationTreeSizeReduction, 71.9ms HoareSimplificationTime, 16 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 639.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 76.1ms SsaConstructionTime, 2495.0ms SatisfiabilityAnalysisTime, 5286.3ms InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 20 QuantifiedInterpolants, 352 SizeOfPredicates, 29 NumberOfNonLiveVariables, 301 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 92]: Loop Invariant [2021-10-16 03:07:24,825 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,826 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,826 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,826 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,826 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,826 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,827 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,827 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,827 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,829 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && (\exists ULTIMATE.start___ieee754_acosf_~hx~1 : bv32 :: (\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_acosf_~hx~1[31:31], ULTIMATE.start___ieee754_acosf_~hx~1[30:23], ULTIMATE.start___ieee754_acosf_~hx~1[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_acosf_~hx~1)) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 164]: Loop Invariant [2021-10-16 03:07:24,830 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,830 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,830 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,830 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,830 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,831 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,831 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,831 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,831 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,831 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,832 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,832 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,833 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,833 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,833 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,833 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,833 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,833 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,834 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,834 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && (\exists ULTIMATE.start___ieee754_acosf_~hx~1 : bv32 :: (\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_acosf_~hx~1[31:31], ULTIMATE.start___ieee754_acosf_~hx~1[30:23], ULTIMATE.start___ieee754_acosf_~hx~1[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_acosf_~hx~1))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 95]: Loop Invariant [2021-10-16 03:07:24,835 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,835 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x) - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 161]: Loop Invariant [2021-10-16 03:07:24,836 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,836 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,837 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,837 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,837 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,837 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,837 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,838 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,838 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,838 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,838 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,839 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,839 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,839 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,841 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-16 03:07:24,841 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_acosf_~hx~1,QUANTIFIED] [2021-10-16 03:07:24,841 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) && (\exists ULTIMATE.start___ieee754_acosf_~hx~1 : bv32 :: (\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_acosf_~hx~1[31:31], ULTIMATE.start___ieee754_acosf_~hx~1[30:23], ULTIMATE.start___ieee754_acosf_~hx~1[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_acosf_~hx~1))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && \result == 0bv32 RESULT: Ultimate proved your program to be correct! [2021-10-16 03:07:25,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5ae61c0-1394-4e8d-b212-9a5d1f12fac0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...