./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0720.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0720.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG --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 4e4c2067f061fded3c73bef3417c7b43200911ac0a27c4167dda41245285899f .............................................................................................................................................................................................................................................................................................................. 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_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0720.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG --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 4e4c2067f061fded3c73bef3417c7b43200911ac0a27c4167dda41245285899f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:27:02,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:27:02,973 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:27:03,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:27:03,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:27:03,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:27:03,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:27:03,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:27:03,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:27:03,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:27:03,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:27:03,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:27:03,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:27:03,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:27:03,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:27:03,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:27:03,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:27:03,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:27:03,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:27:03,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:27:03,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:27:03,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:27:03,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:27:03,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:27:03,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:27:03,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:27:03,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:27:03,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:27:03,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:27:03,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:27:03,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:27:03,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:27:03,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:27:03,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:27:03,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:27:03,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:27:03,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:27:03,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:27:03,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:27:03,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:27:03,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:27:03,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:27:03,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:27:03,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:27:03,118 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:27:03,118 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:27:03,119 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:27:03,119 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:27:03,119 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:27:03,119 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:27:03,120 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:27:03,120 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:27:03,120 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:27:03,120 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:27:03,121 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:27:03,121 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:27:03,121 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:27:03,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:27:03,122 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:27:03,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:27:03,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:27:03,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:27:03,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:27:03,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:27:03,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:27:03,124 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:27:03,125 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:27:03,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:27:03,125 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:27:03,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:27:03,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:27:03,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:27:03,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:27:03,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:27:03,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:27:03,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:27:03,127 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:27:03,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:27:03,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:27:03,128 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:27:03,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:27:03,129 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_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e4c2067f061fded3c73bef3417c7b43200911ac0a27c4167dda41245285899f [2021-10-29 05:27:03,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:27:03,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:27:03,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:27:03,468 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:27:03,469 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:27:03,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2021-10-29 05:27:03,542 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/data/a556873ed/b2e039cc52a44daa9636125aaf9a707e/FLAG5fc50c5ca [2021-10-29 05:27:04,049 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:27:04,050 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2021-10-29 05:27:04,059 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/data/a556873ed/b2e039cc52a44daa9636125aaf9a707e/FLAG5fc50c5ca [2021-10-29 05:27:04,412 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/data/a556873ed/b2e039cc52a44daa9636125aaf9a707e [2021-10-29 05:27:04,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:27:04,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:27:04,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:27:04,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:27:04,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:27:04,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:27:04" (1/1) ... [2021-10-29 05:27:04,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bfc322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:04, skipping insertion in model container [2021-10-29 05:27:04,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:27:04" (1/1) ... [2021-10-29 05:27:04,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:27:04,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:27:04,700 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_65081d79-3541-4c7a-bd7e-e67e74694bb9/sv-benchmarks/c/float-newlib/double_req_bl_0720.c[3072,3085] [2021-10-29 05:27:04,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:27:04,726 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:27:04,804 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_65081d79-3541-4c7a-bd7e-e67e74694bb9/sv-benchmarks/c/float-newlib/double_req_bl_0720.c[3072,3085] [2021-10-29 05:27:04,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:27:04,840 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:27:04,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:04 WrapperNode [2021-10-29 05:27:04,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:27:04,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:27:04,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:27:04,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:27:04,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:04" (1/1) ... [2021-10-29 05:27:04,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:04" (1/1) ... [2021-10-29 05:27:04,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:27:04,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:27:04,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:27:04,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:27:04,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:04" (1/1) ... [2021-10-29 05:27:04,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:04" (1/1) ... [2021-10-29 05:27:04,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:04" (1/1) ... [2021-10-29 05:27:04,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:04" (1/1) ... [2021-10-29 05:27:04,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:04" (1/1) ... [2021-10-29 05:27:04,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:04" (1/1) ... [2021-10-29 05:27:04,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:04" (1/1) ... [2021-10-29 05:27:04,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:27:04,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:27:04,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:27:04,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:27:04,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:04" (1/1) ... [2021-10-29 05:27:04,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:27:05,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:27:05,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:27:05,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:27:05,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:27:05,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:27:05,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-29 05:27:05,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:27:05,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-29 05:27:05,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:27:05,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:27:05,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 05:27:05,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:27:06,159 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:27:06,159 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-29 05:27:06,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:27:06 BoogieIcfgContainer [2021-10-29 05:27:06,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:27:06,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:27:06,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:27:06,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:27:06,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:27:04" (1/3) ... [2021-10-29 05:27:06,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ca3b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:27:06, skipping insertion in model container [2021-10-29 05:27:06,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:04" (2/3) ... [2021-10-29 05:27:06,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ca3b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:27:06, skipping insertion in model container [2021-10-29 05:27:06,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:27:06" (3/3) ... [2021-10-29 05:27:06,194 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2021-10-29 05:27:06,201 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:27:06,202 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:27:06,261 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:27:06,269 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:27:06,270 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:27:06,289 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 22 states have internal predecessors, (36), 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) [2021-10-29 05:27:06,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 05:27:06,295 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:27:06,295 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 05:27:06,296 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:27:06,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:27:06,303 INFO L85 PathProgramCache]: Analyzing trace with hash -2049779649, now seen corresponding path program 1 times [2021-10-29 05:27:06,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:27:06,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705413628] [2021-10-29 05:27:06,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:27:06,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:27:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:27:06,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:27:06,478 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:27:06,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705413628] [2021-10-29 05:27:06,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705413628] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:27:06,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:27:06,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:27:06,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296570054] [2021-10-29 05:27:06,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:27:06,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:27:06,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:27:06,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:27:06,508 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 22 states have internal predecessors, (36), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-10-29 05:27:06,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:27:06,527 INFO L93 Difference]: Finished difference Result 45 states and 71 transitions. [2021-10-29 05:27:06,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:27:06,529 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-10-29 05:27:06,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:27:06,537 INFO L225 Difference]: With dead ends: 45 [2021-10-29 05:27:06,538 INFO L226 Difference]: Without dead ends: 21 [2021-10-29 05:27:06,540 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:27:06,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-29 05:27:06,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-10-29 05:27:06,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.45) internal successors, (29), 20 states have internal predecessors, (29), 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) [2021-10-29 05:27:06,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2021-10-29 05:27:06,574 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 6 [2021-10-29 05:27:06,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:27:06,575 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2021-10-29 05:27:06,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2021-10-29 05:27:06,576 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2021-10-29 05:27:06,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 05:27:06,576 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:27:06,576 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:27:06,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:27:06,577 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:27:06,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:27:06,578 INFO L85 PathProgramCache]: Analyzing trace with hash 669089214, now seen corresponding path program 1 times [2021-10-29 05:27:06,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:27:06,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058040995] [2021-10-29 05:27:06,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:27:06,579 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:27:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:27:06,638 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:27:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:27:06,714 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:27:06,714 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:27:06,716 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:27:06,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:27:06,723 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 05:27:06,726 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:27:06,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:27:06 BoogieIcfgContainer [2021-10-29 05:27:06,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:27:06,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:27:06,763 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:27:06,763 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:27:06,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:27:06" (3/4) ... [2021-10-29 05:27:06,769 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:27:06,769 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:27:06,773 INFO L168 Benchmark]: Toolchain (without parser) took 2353.67 ms. Allocated memory is still 104.9 MB. Free memory was 66.8 MB in the beginning and 56.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:27:06,774 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 104.9 MB. Free memory is still 83.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:27:06,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 421.97 ms. Allocated memory is still 104.9 MB. Free memory was 66.6 MB in the beginning and 77.5 MB in the end (delta: -10.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:27:06,778 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.75 ms. Allocated memory is still 104.9 MB. Free memory was 77.5 MB in the beginning and 75.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:27:06,780 INFO L168 Benchmark]: Boogie Preprocessor took 35.06 ms. Allocated memory is still 104.9 MB. Free memory was 75.4 MB in the beginning and 73.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:27:06,787 INFO L168 Benchmark]: RCFGBuilder took 1199.08 ms. Allocated memory is still 104.9 MB. Free memory was 73.8 MB in the beginning and 41.0 MB in the end (delta: 32.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:27:06,787 INFO L168 Benchmark]: TraceAbstraction took 594.83 ms. Allocated memory is still 104.9 MB. Free memory was 40.5 MB in the beginning and 56.9 MB in the end (delta: -16.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:27:06,787 INFO L168 Benchmark]: Witness Printer took 7.13 ms. Allocated memory is still 104.9 MB. Free memory is still 56.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:27:06,791 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 104.9 MB. Free memory is still 83.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 421.97 ms. Allocated memory is still 104.9 MB. Free memory was 66.6 MB in the beginning and 77.5 MB in the end (delta: -10.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.75 ms. Allocated memory is still 104.9 MB. Free memory was 77.5 MB in the beginning and 75.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.06 ms. Allocated memory is still 104.9 MB. Free memory was 75.4 MB in the beginning and 73.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1199.08 ms. Allocated memory is still 104.9 MB. Free memory was 73.8 MB in the beginning and 41.0 MB in the end (delta: 32.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 594.83 ms. Allocated memory is still 104.9 MB. Free memory was 40.5 MB in the beginning and 56.9 MB in the end (delta: -16.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.13 ms. Allocated memory is still 104.9 MB. Free memory is still 56.3 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 147]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 38, overapproximation of bitwiseAnd at line 37. Possible FailurePath: [L22] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L141] double x = 0.0 / 0.0; [L25] double z; [L26] __int32_t sign = 0x80000000; [L27] __uint32_t r, t1, s1, ix1, q1; [L28] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] ieee_double_shape_type ew_u; [L32] ew_u.value = (x) [L33] EXPR ew_u.parts.msw [L33] (ix0) = ew_u.parts.msw [L34] EXPR ew_u.parts.lsw [L34] (ix1) = ew_u.parts.lsw [L37] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L38] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L143] double res = __ieee754_sqrt(x); [L20] return x != x; [L146] COND TRUE !isnan_double(res) [L147] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 31 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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 [2021-10-29 05:27:06,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/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-b2eff8b [2021-10-29 05:27:09,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:27:09,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:27:09,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:27:09,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:27:09,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:27:09,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:27:09,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:27:09,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:27:09,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:27:09,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:27:09,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:27:09,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:27:09,822 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:27:09,824 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:27:09,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:27:09,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:27:09,834 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:27:09,836 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:27:09,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:27:09,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:27:09,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:27:09,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:27:09,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:27:09,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:27:09,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:27:09,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:27:09,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:27:09,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:27:09,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:27:09,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:27:09,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:27:09,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:27:09,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:27:09,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:27:09,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:27:09,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:27:09,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:27:09,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:27:09,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:27:09,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:27:09,905 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:27:09,958 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:27:09,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:27:09,960 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:27:09,960 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:27:09,961 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:27:09,961 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:27:09,961 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:27:09,961 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:27:09,962 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:27:09,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:27:09,965 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:27:09,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:27:09,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:27:09,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:27:09,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:27:09,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:27:09,966 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:27:09,966 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:27:09,967 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:27:09,967 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:27:09,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:27:09,967 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:27:09,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:27:09,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:27:09,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:27:09,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:27:09,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:27:09,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:27:09,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:27:09,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:27:09,970 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:27:09,970 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:27:09,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:27:09,970 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:27:09,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:27:09,971 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_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e4c2067f061fded3c73bef3417c7b43200911ac0a27c4167dda41245285899f [2021-10-29 05:27:10,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:27:10,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:27:10,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:27:10,464 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:27:10,467 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:27:10,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2021-10-29 05:27:10,565 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/data/97012d479/baa4600018694296a4dd054c05413342/FLAG6b0168488 [2021-10-29 05:27:11,149 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:27:11,150 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2021-10-29 05:27:11,159 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/data/97012d479/baa4600018694296a4dd054c05413342/FLAG6b0168488 [2021-10-29 05:27:11,489 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/data/97012d479/baa4600018694296a4dd054c05413342 [2021-10-29 05:27:11,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:27:11,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:27:11,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:27:11,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:27:11,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:27:11,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:27:11" (1/1) ... [2021-10-29 05:27:11,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14de3a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:11, skipping insertion in model container [2021-10-29 05:27:11,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:27:11" (1/1) ... [2021-10-29 05:27:11,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:27:11,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:27:11,881 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_65081d79-3541-4c7a-bd7e-e67e74694bb9/sv-benchmarks/c/float-newlib/double_req_bl_0720.c[3072,3085] [2021-10-29 05:27:11,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:27:11,919 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:27:12,006 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_65081d79-3541-4c7a-bd7e-e67e74694bb9/sv-benchmarks/c/float-newlib/double_req_bl_0720.c[3072,3085] [2021-10-29 05:27:12,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:27:12,044 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:27:12,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:12 WrapperNode [2021-10-29 05:27:12,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:27:12,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:27:12,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:27:12,047 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:27:12,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:12" (1/1) ... [2021-10-29 05:27:12,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:12" (1/1) ... [2021-10-29 05:27:12,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:27:12,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:27:12,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:27:12,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:27:12,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:12" (1/1) ... [2021-10-29 05:27:12,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:12" (1/1) ... [2021-10-29 05:27:12,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:12" (1/1) ... [2021-10-29 05:27:12,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:12" (1/1) ... [2021-10-29 05:27:12,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:12" (1/1) ... [2021-10-29 05:27:12,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:12" (1/1) ... [2021-10-29 05:27:12,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:12" (1/1) ... [2021-10-29 05:27:12,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:27:12,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:27:12,209 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:27:12,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:27:12,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:12" (1/1) ... [2021-10-29 05:27:12,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:27:12,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:27:12,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:27:12,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:27:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-29 05:27:12,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-29 05:27:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:27:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:27:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 05:27:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:27:12,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:27:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 05:27:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:27:16,134 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:27:16,135 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-29 05:27:16,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:27:16 BoogieIcfgContainer [2021-10-29 05:27:16,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:27:16,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:27:16,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:27:16,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:27:16,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:27:11" (1/3) ... [2021-10-29 05:27:16,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbb414c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:27:16, skipping insertion in model container [2021-10-29 05:27:16,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:27:12" (2/3) ... [2021-10-29 05:27:16,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cbb414c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:27:16, skipping insertion in model container [2021-10-29 05:27:16,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:27:16" (3/3) ... [2021-10-29 05:27:16,148 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2021-10-29 05:27:16,154 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:27:16,155 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:27:16,215 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:27:16,222 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:27:16,223 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:27:16,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 48 states have internal predecessors, (77), 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) [2021-10-29 05:27:16,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 05:27:16,247 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:27:16,248 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:27:16,249 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:27:16,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:27:16,256 INFO L85 PathProgramCache]: Analyzing trace with hash 361067274, now seen corresponding path program 1 times [2021-10-29 05:27:16,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:27:16,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312351328] [2021-10-29 05:27:16,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:27:16,273 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:27:16,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:27:16,281 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:27:16,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:27:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:27:16,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:27:16,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:27:16,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:27:16,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:27:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:27:16,891 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:27:16,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312351328] [2021-10-29 05:27:16,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [312351328] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:27:16,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:27:16,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:27:16,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880355335] [2021-10-29 05:27:16,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:27:16,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:27:16,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:27:16,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:27:16,919 INFO L87 Difference]: Start difference. First operand has 49 states, 47 states have (on average 1.6382978723404256) internal successors, (77), 48 states have internal predecessors, (77), 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) [2021-10-29 05:27:16,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:27:16,953 INFO L93 Difference]: Finished difference Result 96 states and 152 transitions. [2021-10-29 05:27:16,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:27:16,954 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 [2021-10-29 05:27:16,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:27:16,968 INFO L225 Difference]: With dead ends: 96 [2021-10-29 05:27:16,968 INFO L226 Difference]: Without dead ends: 46 [2021-10-29 05:27:16,972 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:27:17,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-29 05:27:17,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-29 05:27:17,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 45 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) [2021-10-29 05:27:17,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 65 transitions. [2021-10-29 05:27:17,057 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 65 transitions. Word has length 8 [2021-10-29 05:27:17,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:27:17,057 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 65 transitions. [2021-10-29 05:27:17,058 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) [2021-10-29 05:27:17,058 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2021-10-29 05:27:17,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 05:27:17,059 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:27:17,060 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:27:17,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:27:17,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:27:17,263 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:27:17,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:27:17,264 INFO L85 PathProgramCache]: Analyzing trace with hash 331821581, now seen corresponding path program 1 times [2021-10-29 05:27:17,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:27:17,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933362924] [2021-10-29 05:27:17,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:27:17,266 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:27:17,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:27:17,268 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:27:17,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:27:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:27:17,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 05:27:17,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:27:18,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:27:18,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:27:22,789 WARN L838 $PredicateComparison]: unable to prove that (= (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start___ieee754_sqrt_~x c_ULTIMATE.start___ieee754_sqrt_~x) c_ULTIMATE.start___ieee754_sqrt_~x) (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))) is different from false [2021-10-29 05:27:28,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:27:28,017 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:27:28,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933362924] [2021-10-29 05:27:28,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933362924] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:27:28,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:27:28,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-29 05:27:28,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412291487] [2021-10-29 05:27:28,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 05:27:28,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:27:28,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 05:27:28,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=55, Unknown=1, NotChecked=14, Total=90 [2021-10-29 05:27:28,024 INFO L87 Difference]: Start difference. First operand 46 states and 65 transitions. Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 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) [2021-10-29 05:27:31,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:27:31,006 INFO L93 Difference]: Finished difference Result 51 states and 69 transitions. [2021-10-29 05:27:31,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:27:31,007 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 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 9 [2021-10-29 05:27:31,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:27:31,008 INFO L225 Difference]: With dead ends: 51 [2021-10-29 05:27:31,009 INFO L226 Difference]: Without dead ends: 46 [2021-10-29 05:27:31,010 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=44, Invalid=91, Unknown=1, NotChecked=20, Total=156 [2021-10-29 05:27:31,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-29 05:27:31,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2021-10-29 05:27:31,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.3777777777777778) internal successors, (62), 45 states have internal predecessors, (62), 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) [2021-10-29 05:27:31,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 62 transitions. [2021-10-29 05:27:31,019 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 62 transitions. Word has length 9 [2021-10-29 05:27:31,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:27:31,020 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 62 transitions. [2021-10-29 05:27:31,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 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) [2021-10-29 05:27:31,021 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2021-10-29 05:27:31,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 05:27:31,022 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:27:31,023 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:27:31,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:27:31,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:27:31,239 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:27:31,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:27:31,240 INFO L85 PathProgramCache]: Analyzing trace with hash -677928537, now seen corresponding path program 1 times [2021-10-29 05:27:31,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:27:31,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051940657] [2021-10-29 05:27:31,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:27:31,242 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:27:31,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:27:31,244 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:27:31,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:27:31,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:27:31,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:27:31,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:27:31,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:27:31,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:27:34,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:27:34,378 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:27:34,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051940657] [2021-10-29 05:27:34,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1051940657] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:27:34,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:27:34,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:27:34,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086884072] [2021-10-29 05:27:34,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:27:34,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:27:34,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:27:34,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=18, Unknown=1, NotChecked=0, Total=30 [2021-10-29 05:27:34,382 INFO L87 Difference]: Start difference. First operand 46 states and 62 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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) [2021-10-29 05:27:34,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:27:34,529 INFO L93 Difference]: Finished difference Result 46 states and 62 transitions. [2021-10-29 05:27:34,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:27:34,529 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 25 [2021-10-29 05:27:34,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:27:34,530 INFO L225 Difference]: With dead ends: 46 [2021-10-29 05:27:34,531 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:27:34,531 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2021-10-29 05:27:34,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:27:34,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:27:34,532 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) [2021-10-29 05:27:34,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:27:34,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-10-29 05:27:34,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:27:34,533 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:27:34,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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) [2021-10-29 05:27:34,534 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:27:34,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:27:34,537 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:27:34,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-29 05:27:34,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:27:34,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 05:27:34,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,798 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:34,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:27:35,107 INFO L860 garLoopResultBuilder]: At program point L151(lines 134 152) the Hoare annotation is: true [2021-10-29 05:27:35,107 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-10-29 05:27:35,107 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 05:27:35,107 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 05:27:35,108 INFO L853 garLoopResultBuilder]: At program point L20(line 20) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrt_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))) (= ULTIMATE.start___ieee754_sqrt_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-29 05:27:35,108 INFO L857 garLoopResultBuilder]: For program point L95(lines 95 96) no Hoare annotation was computed. [2021-10-29 05:27:35,108 INFO L857 garLoopResultBuilder]: For program point L95-2(lines 95 96) no Hoare annotation was computed. [2021-10-29 05:27:35,108 INFO L853 garLoopResultBuilder]: At program point L87-2(lines 87 103) the Hoare annotation is: false [2021-10-29 05:27:35,109 INFO L857 garLoopResultBuilder]: For program point L87-3(lines 24 132) no Hoare annotation was computed. [2021-10-29 05:27:35,109 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 117) no Hoare annotation was computed. [2021-10-29 05:27:35,109 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 66) no Hoare annotation was computed. [2021-10-29 05:27:35,109 INFO L857 garLoopResultBuilder]: For program point L30-1(lines 30 35) no Hoare annotation was computed. [2021-10-29 05:27:35,109 INFO L857 garLoopResultBuilder]: For program point L63-2(lines 63 66) no Hoare annotation was computed. [2021-10-29 05:27:35,109 INFO L853 garLoopResultBuilder]: At program point L30-2(lines 30 35) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_sqrt_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-29 05:27:35,110 INFO L857 garLoopResultBuilder]: For program point L30-3(lines 24 132) no Hoare annotation was computed. [2021-10-29 05:27:35,110 INFO L857 garLoopResultBuilder]: For program point L55-2(lines 55 56) no Hoare annotation was computed. [2021-10-29 05:27:35,110 INFO L853 garLoopResultBuilder]: At program point L55-3(lines 55 56) the Hoare annotation is: false [2021-10-29 05:27:35,110 INFO L857 garLoopResultBuilder]: For program point L55-4(lines 55 56) no Hoare annotation was computed. [2021-10-29 05:27:35,110 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 149) no Hoare annotation was computed. [2021-10-29 05:27:35,110 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 114) no Hoare annotation was computed. [2021-10-29 05:27:35,111 INFO L857 garLoopResultBuilder]: For program point L113-2(lines 113 114) no Hoare annotation was computed. [2021-10-29 05:27:35,111 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 119) no Hoare annotation was computed. [2021-10-29 05:27:35,111 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 123) no Hoare annotation was computed. [2021-10-29 05:27:35,111 INFO L857 garLoopResultBuilder]: For program point L122-2(lines 122 123) no Hoare annotation was computed. [2021-10-29 05:27:35,111 INFO L857 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-10-29 05:27:35,112 INFO L853 garLoopResultBuilder]: At program point L131(lines 24 132) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrt_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))) (= ULTIMATE.start___ieee754_sqrt_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-29 05:27:35,112 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 05:27:35,112 INFO L857 garLoopResultBuilder]: For program point L90(lines 90 99) no Hoare annotation was computed. [2021-10-29 05:27:35,112 INFO L857 garLoopResultBuilder]: For program point L90-2(lines 90 99) no Hoare annotation was computed. [2021-10-29 05:27:35,112 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 147) no Hoare annotation was computed. [2021-10-29 05:27:35,113 INFO L857 garLoopResultBuilder]: For program point L49(lines 49 60) no Hoare annotation was computed. [2021-10-29 05:27:35,113 INFO L857 garLoopResultBuilder]: For program point L49-2(lines 49 60) no Hoare annotation was computed. [2021-10-29 05:27:35,113 INFO L857 garLoopResultBuilder]: For program point L107(lines 107 118) no Hoare annotation was computed. [2021-10-29 05:27:35,113 INFO L857 garLoopResultBuilder]: For program point L41(lines 41 46) no Hoare annotation was computed. [2021-10-29 05:27:35,113 INFO L853 garLoopResultBuilder]: At program point L74-2(lines 74 84) the Hoare annotation is: false [2021-10-29 05:27:35,113 INFO L857 garLoopResultBuilder]: For program point L41-2(lines 41 46) no Hoare annotation was computed. [2021-10-29 05:27:35,114 INFO L857 garLoopResultBuilder]: For program point L74-3(lines 74 84) no Hoare annotation was computed. [2021-10-29 05:27:35,114 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 05:27:35,114 INFO L853 garLoopResultBuilder]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2021-10-29 05:27:35,114 INFO L857 garLoopResultBuilder]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2021-10-29 05:27:35,118 INFO L857 garLoopResultBuilder]: For program point L42(lines 42 45) no Hoare annotation was computed. [2021-10-29 05:27:35,118 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2021-10-29 05:27:35,118 INFO L857 garLoopResultBuilder]: For program point L125-1(lines 125 130) no Hoare annotation was computed. [2021-10-29 05:27:35,119 INFO L853 garLoopResultBuilder]: At program point L125-2(lines 125 130) the Hoare annotation is: false [2021-10-29 05:27:35,119 INFO L857 garLoopResultBuilder]: For program point L92-2(lines 92 93) no Hoare annotation was computed. [2021-10-29 05:27:35,119 INFO L857 garLoopResultBuilder]: For program point L125-3(lines 125 130) no Hoare annotation was computed. [2021-10-29 05:27:35,120 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 117) no Hoare annotation was computed. [2021-10-29 05:27:35,120 INFO L857 garLoopResultBuilder]: For program point L76(lines 76 80) no Hoare annotation was computed. [2021-10-29 05:27:35,120 INFO L857 garLoopResultBuilder]: For program point L76-2(lines 76 80) no Hoare annotation was computed. [2021-10-29 05:27:35,127 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-29 05:27:35,131 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:27:35,143 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,148 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,150 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,150 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,150 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,151 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,151 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,151 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,152 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,152 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,152 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,153 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,153 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,153 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,154 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,155 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,155 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,155 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,156 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,156 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,157 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,157 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,157 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,158 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,158 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,158 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:27:35 BoogieIcfgContainer [2021-10-29 05:27:35,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:27:35,160 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:27:35,160 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:27:35,161 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:27:35,161 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:27:16" (3/4) ... [2021-10-29 05:27:35,165 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:27:35,180 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-29 05:27:35,180 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-29 05:27:35,181 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:27:35,182 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:27:35,212 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-29 05:27:35,214 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-29 05:27:35,247 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:27:35,248 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:27:35,250 INFO L168 Benchmark]: Toolchain (without parser) took 23752.63 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 46.4 MB in the beginning and 50.0 MB in the end (delta: -3.6 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:27:35,250 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 67.1 MB. Free memory is still 47.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:27:35,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 545.05 ms. Allocated memory is still 67.1 MB. Free memory was 46.1 MB in the beginning and 46.7 MB in the end (delta: -609.2 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:27:35,251 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.15 ms. Allocated memory is still 67.1 MB. Free memory was 46.5 MB in the beginning and 44.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:27:35,252 INFO L168 Benchmark]: Boogie Preprocessor took 76.24 ms. Allocated memory is still 67.1 MB. Free memory was 44.5 MB in the beginning and 42.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:27:35,252 INFO L168 Benchmark]: RCFGBuilder took 3928.75 ms. Allocated memory is still 67.1 MB. Free memory was 42.6 MB in the beginning and 47.9 MB in the end (delta: -5.2 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:27:35,253 INFO L168 Benchmark]: TraceAbstraction took 19019.53 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 47.2 MB in the beginning and 54.2 MB in the end (delta: -6.9 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:27:35,253 INFO L168 Benchmark]: Witness Printer took 87.86 ms. Allocated memory is still 90.2 MB. Free memory was 54.2 MB in the beginning and 50.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:27:35,256 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 67.1 MB. Free memory is still 47.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 545.05 ms. Allocated memory is still 67.1 MB. Free memory was 46.1 MB in the beginning and 46.7 MB in the end (delta: -609.2 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.15 ms. Allocated memory is still 67.1 MB. Free memory was 46.5 MB in the beginning and 44.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.24 ms. Allocated memory is still 67.1 MB. Free memory was 44.5 MB in the beginning and 42.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3928.75 ms. Allocated memory is still 67.1 MB. Free memory was 42.6 MB in the beginning and 47.9 MB in the end (delta: -5.2 MB). Peak memory consumption was 19.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19019.53 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 47.2 MB in the beginning and 54.2 MB in the end (delta: -6.9 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * Witness Printer took 87.86 ms. Allocated memory is still 90.2 MB. Free memory was 54.2 MB in the beginning and 50.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 147]: 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, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 127 SDtfs, 135 SDslu, 225 SDs, 0 SdLazy, 47 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 83 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 75 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 13.5s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 78 ConstructedInterpolants, 4 QuantifiedInterpolants, 285 SizeOfPredicates, 16 NumberOfNonLiveVariables, 165 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant [2021-10-29 05:27:35,268 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,268 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 24]: Loop Invariant [2021-10-29 05:27:35,269 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,269 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,270 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,270 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,270 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,270 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,271 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,271 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,271 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,271 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,272 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,272 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant [2021-10-29 05:27:35,274 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,274 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,274 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,274 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,275 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,275 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,275 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:27:35,277 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-29 05:27:35,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65081d79-3541-4c7a-bd7e-e67e74694bb9/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...