./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0960b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0960b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan --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 c285e562d9f6861063d00fb52b20aadb4fe9461b ........................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0960b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan --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 c285e562d9f6861063d00fb52b20aadb4fe9461b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 20:46:41,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 20:46:41,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 20:46:41,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 20:46:41,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 20:46:41,198 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 20:46:41,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 20:46:41,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 20:46:41,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 20:46:41,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 20:46:41,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 20:46:41,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 20:46:41,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 20:46:41,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 20:46:41,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 20:46:41,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 20:46:41,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 20:46:41,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 20:46:41,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 20:46:41,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 20:46:41,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 20:46:41,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 20:46:41,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 20:46:41,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 20:46:41,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 20:46:41,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 20:46:41,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 20:46:41,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 20:46:41,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 20:46:41,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 20:46:41,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 20:46:41,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 20:46:41,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 20:46:41,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 20:46:41,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 20:46:41,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 20:46:41,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 20:46:41,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 20:46:41,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 20:46:41,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 20:46:41,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 20:46:41,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 20:46:41,256 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 20:46:41,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 20:46:41,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 20:46:41,257 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 20:46:41,257 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 20:46:41,258 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 20:46:41,258 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 20:46:41,258 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 20:46:41,258 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 20:46:41,258 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 20:46:41,258 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 20:46:41,258 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 20:46:41,259 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 20:46:41,259 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 20:46:41,259 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 20:46:41,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 20:46:41,260 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 20:46:41,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 20:46:41,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 20:46:41,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 20:46:41,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 20:46:41,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 20:46:41,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 20:46:41,260 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 20:46:41,260 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 20:46:41,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 20:46:41,261 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 20:46:41,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 20:46:41,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 20:46:41,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 20:46:41,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:46:41,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 20:46:41,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 20:46:41,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 20:46:41,262 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 20:46:41,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 20:46:41,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 20:46:41,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 20:46:41,262 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 20:46:41,263 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-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c285e562d9f6861063d00fb52b20aadb4fe9461b [2020-12-09 20:46:41,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 20:46:41,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 20:46:41,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 20:46:41,473 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 20:46:41,474 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 20:46:41,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0960b.c [2020-12-09 20:46:41,518 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/data/849d13efe/f1d1b28af95a4b7a9666fc99e438c226/FLAGeed1a062c [2020-12-09 20:46:41,886 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 20:46:41,886 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/sv-benchmarks/c/float-newlib/float_req_bl_0960b.c [2020-12-09 20:46:41,892 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/data/849d13efe/f1d1b28af95a4b7a9666fc99e438c226/FLAGeed1a062c [2020-12-09 20:46:41,901 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/data/849d13efe/f1d1b28af95a4b7a9666fc99e438c226 [2020-12-09 20:46:41,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 20:46:41,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 20:46:41,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 20:46:41,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 20:46:41,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 20:46:41,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:46:41" (1/1) ... [2020-12-09 20:46:41,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a1374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:41, skipping insertion in model container [2020-12-09 20:46:41,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:46:41" (1/1) ... [2020-12-09 20:46:41,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 20:46:41,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 20:46:42,060 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/sv-benchmarks/c/float-newlib/float_req_bl_0960b.c[4186,4199] [2020-12-09 20:46:42,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:46:42,070 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 20:46:42,101 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/sv-benchmarks/c/float-newlib/float_req_bl_0960b.c[4186,4199] [2020-12-09 20:46:42,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:46:42,113 INFO L208 MainTranslator]: Completed translation [2020-12-09 20:46:42,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:42 WrapperNode [2020-12-09 20:46:42,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 20:46:42,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 20:46:42,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 20:46:42,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 20:46:42,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:42" (1/1) ... [2020-12-09 20:46:42,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:42" (1/1) ... [2020-12-09 20:46:42,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 20:46:42,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 20:46:42,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 20:46:42,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 20:46:42,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:42" (1/1) ... [2020-12-09 20:46:42,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:42" (1/1) ... [2020-12-09 20:46:42,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:42" (1/1) ... [2020-12-09 20:46:42,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:42" (1/1) ... [2020-12-09 20:46:42,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:42" (1/1) ... [2020-12-09 20:46:42,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:42" (1/1) ... [2020-12-09 20:46:42,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:42" (1/1) ... [2020-12-09 20:46:42,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 20:46:42,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 20:46:42,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 20:46:42,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 20:46:42,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:46:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 20:46:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 20:46:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 20:46:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 20:46:42,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 20:46:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 20:46:42,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 20:46:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 20:46:42,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 20:46:42,638 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 20:46:42,638 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-09 20:46:42,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:46:42 BoogieIcfgContainer [2020-12-09 20:46:42,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 20:46:42,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 20:46:42,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 20:46:42,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 20:46:42,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:46:41" (1/3) ... [2020-12-09 20:46:42,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5017be40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:46:42, skipping insertion in model container [2020-12-09 20:46:42,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:42" (2/3) ... [2020-12-09 20:46:42,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5017be40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:46:42, skipping insertion in model container [2020-12-09 20:46:42,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:46:42" (3/3) ... [2020-12-09 20:46:42,646 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960b.c [2020-12-09 20:46:42,656 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 20:46:42,659 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 20:46:42,667 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 20:46:42,683 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 20:46:42,683 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 20:46:42,684 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 20:46:42,684 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 20:46:42,684 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 20:46:42,684 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 20:46:42,684 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 20:46:42,684 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 20:46:42,693 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-12-09 20:46:42,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 20:46:42,696 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:46:42,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:46:42,697 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:46:42,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:46:42,701 INFO L82 PathProgramCache]: Analyzing trace with hash -904375748, now seen corresponding path program 1 times [2020-12-09 20:46:42,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:46:42,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762403967] [2020-12-09 20:46:42,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:46:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:46:42,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:46:42,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762403967] [2020-12-09 20:46:42,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:46:42,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:46:42,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503186972] [2020-12-09 20:46:42,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 20:46:42,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:46:42,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 20:46:42,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 20:46:42,819 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-12-09 20:46:42,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:46:42,831 INFO L93 Difference]: Finished difference Result 73 states and 117 transitions. [2020-12-09 20:46:42,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 20:46:42,832 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-09 20:46:42,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:46:42,838 INFO L225 Difference]: With dead ends: 73 [2020-12-09 20:46:42,838 INFO L226 Difference]: Without dead ends: 35 [2020-12-09 20:46:42,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 20:46:42,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-09 20:46:42,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-12-09 20:46:42,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-09 20:46:42,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2020-12-09 20:46:42,862 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 9 [2020-12-09 20:46:42,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:46:42,862 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2020-12-09 20:46:42,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 20:46:42,863 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2020-12-09 20:46:42,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 20:46:42,863 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:46:42,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:46:42,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 20:46:42,863 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:46:42,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:46:42,864 INFO L82 PathProgramCache]: Analyzing trace with hash 967314873, now seen corresponding path program 1 times [2020-12-09 20:46:42,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:46:42,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197901529] [2020-12-09 20:46:42,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:46:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 20:46:42,918 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 20:46:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 20:46:42,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 20:46:42,975 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 20:46:42,976 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 20:46:42,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 20:46:43,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:46:43 BoogieIcfgContainer [2020-12-09 20:46:43,001 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 20:46:43,002 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 20:46:43,002 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 20:46:43,002 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 20:46:43,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:46:42" (3/4) ... [2020-12-09 20:46:43,005 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 20:46:43,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 20:46:43,007 INFO L168 Benchmark]: Toolchain (without parser) took 1102.42 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 63.4 MB in the beginning and 86.4 MB in the end (delta: -23.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:46:43,007 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 92.3 MB. Free memory is still 70.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:46:43,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.13 ms. Allocated memory is still 92.3 MB. Free memory was 63.2 MB in the beginning and 50.3 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 20:46:43,008 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.34 ms. Allocated memory is still 92.3 MB. Free memory was 50.3 MB in the beginning and 71.1 MB in the end (delta: -20.8 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. [2020-12-09 20:46:43,009 INFO L168 Benchmark]: Boogie Preprocessor took 32.23 ms. Allocated memory is still 92.3 MB. Free memory was 71.1 MB in the beginning and 69.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 20:46:43,009 INFO L168 Benchmark]: RCFGBuilder took 445.13 ms. Allocated memory is still 92.3 MB. Free memory was 69.2 MB in the beginning and 61.6 MB in the end (delta: 7.7 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. [2020-12-09 20:46:43,010 INFO L168 Benchmark]: TraceAbstraction took 360.15 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 61.2 MB in the beginning and 86.4 MB in the end (delta: -25.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2020-12-09 20:46:43,010 INFO L168 Benchmark]: Witness Printer took 3.35 ms. Allocated memory is still 113.2 MB. Free memory is still 86.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:46:43,013 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 92.3 MB. Free memory is still 70.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 209.13 ms. Allocated memory is still 92.3 MB. Free memory was 63.2 MB in the beginning and 50.3 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.34 ms. Allocated memory is still 92.3 MB. Free memory was 50.3 MB in the beginning and 71.1 MB in the end (delta: -20.8 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.23 ms. Allocated memory is still 92.3 MB. Free memory was 71.1 MB in the beginning and 69.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 445.13 ms. Allocated memory is still 92.3 MB. Free memory was 69.2 MB in the beginning and 61.6 MB in the end (delta: 7.7 MB). Peak memory consumption was 33.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 360.15 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 61.2 MB in the beginning and 86.4 MB in the end (delta: -25.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.35 ms. Allocated memory is still 113.2 MB. Free memory is still 86.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 168]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryFLOAToperation at line 163, overapproximation of someBinaryArithmeticFLOAToperation at line 118, overapproximation of bitwiseAnd at line 153. Possible FailurePath: [L13-L17] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L19] static const float zero_log = 0.0; [L99-L102] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L104] static const float zero = 0.0; [L163] float x = -0.0f; [L107] float y, z; [L108] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L111] ieee_float_shape_type gf_u; [L112] gf_u.value = (x) [L113] EXPR gf_u.word [L113] (hx) = gf_u.word [L116] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L117] COND TRUE ((hx & 0x7fffffff) == 0) [L118] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L164] float res = __ieee754_log10f(x); [L147] __int32_t ix; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L149] ieee_float_shape_type gf_u; [L150] gf_u.value = (x) [L151] EXPR gf_u.word [L151] (ix) = gf_u.word [L153] ix &= 0x7fffffff [L154] return ((ix) == 0x7f800000L); [L167] COND TRUE !isinf_float(res) [L168] reach_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 44 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=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 20:46:44,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 20:46:44,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 20:46:44,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 20:46:44,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 20:46:44,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 20:46:44,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 20:46:44,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 20:46:44,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 20:46:44,616 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 20:46:44,617 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 20:46:44,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 20:46:44,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 20:46:44,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 20:46:44,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 20:46:44,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 20:46:44,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 20:46:44,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 20:46:44,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 20:46:44,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 20:46:44,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 20:46:44,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 20:46:44,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 20:46:44,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 20:46:44,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 20:46:44,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 20:46:44,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 20:46:44,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 20:46:44,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 20:46:44,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 20:46:44,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 20:46:44,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 20:46:44,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 20:46:44,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 20:46:44,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 20:46:44,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 20:46:44,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 20:46:44,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 20:46:44,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 20:46:44,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 20:46:44,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 20:46:44,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 20:46:44,688 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 20:46:44,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 20:46:44,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 20:46:44,689 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 20:46:44,689 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 20:46:44,689 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 20:46:44,689 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 20:46:44,690 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 20:46:44,690 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 20:46:44,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 20:46:44,691 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 20:46:44,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 20:46:44,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 20:46:44,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 20:46:44,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 20:46:44,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 20:46:44,692 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 20:46:44,692 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 20:46:44,692 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 20:46:44,693 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 20:46:44,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 20:46:44,693 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 20:46:44,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 20:46:44,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 20:46:44,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 20:46:44,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 20:46:44,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:46:44,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 20:46:44,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 20:46:44,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 20:46:44,695 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 20:46:44,695 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 20:46:44,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 20:46:44,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 20:46:44,696 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 20:46:44,696 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-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c285e562d9f6861063d00fb52b20aadb4fe9461b [2020-12-09 20:46:44,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 20:46:44,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 20:46:44,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 20:46:44,952 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 20:46:44,952 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 20:46:44,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0960b.c [2020-12-09 20:46:44,994 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/data/0656009bd/9e93a6d986574321b42d9485a396e83d/FLAGc9dd07675 [2020-12-09 20:46:45,397 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 20:46:45,398 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/sv-benchmarks/c/float-newlib/float_req_bl_0960b.c [2020-12-09 20:46:45,404 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/data/0656009bd/9e93a6d986574321b42d9485a396e83d/FLAGc9dd07675 [2020-12-09 20:46:45,416 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/data/0656009bd/9e93a6d986574321b42d9485a396e83d [2020-12-09 20:46:45,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 20:46:45,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 20:46:45,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 20:46:45,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 20:46:45,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 20:46:45,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:46:45" (1/1) ... [2020-12-09 20:46:45,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae4a102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:45, skipping insertion in model container [2020-12-09 20:46:45,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:46:45" (1/1) ... [2020-12-09 20:46:45,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 20:46:45,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 20:46:45,583 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/sv-benchmarks/c/float-newlib/float_req_bl_0960b.c[4186,4199] [2020-12-09 20:46:45,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:46:45,602 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 20:46:45,654 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/sv-benchmarks/c/float-newlib/float_req_bl_0960b.c[4186,4199] [2020-12-09 20:46:45,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:46:45,673 INFO L208 MainTranslator]: Completed translation [2020-12-09 20:46:45,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:45 WrapperNode [2020-12-09 20:46:45,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 20:46:45,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 20:46:45,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 20:46:45,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 20:46:45,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:45" (1/1) ... [2020-12-09 20:46:45,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:45" (1/1) ... [2020-12-09 20:46:45,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 20:46:45,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 20:46:45,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 20:46:45,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 20:46:45,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:45" (1/1) ... [2020-12-09 20:46:45,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:45" (1/1) ... [2020-12-09 20:46:45,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:45" (1/1) ... [2020-12-09 20:46:45,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:45" (1/1) ... [2020-12-09 20:46:45,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:45" (1/1) ... [2020-12-09 20:46:45,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:45" (1/1) ... [2020-12-09 20:46:45,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:45" (1/1) ... [2020-12-09 20:46:45,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 20:46:45,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 20:46:45,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 20:46:45,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 20:46:45,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:46:45,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 20:46:45,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 20:46:45,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-09 20:46:45,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 20:46:45,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 20:46:45,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 20:46:45,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-09 20:46:45,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 20:46:45,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 20:47:12,053 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 20:47:12,053 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-09 20:47:12,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:47:12 BoogieIcfgContainer [2020-12-09 20:47:12,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 20:47:12,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 20:47:12,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 20:47:12,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 20:47:12,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:46:45" (1/3) ... [2020-12-09 20:47:12,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a27b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:47:12, skipping insertion in model container [2020-12-09 20:47:12,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:46:45" (2/3) ... [2020-12-09 20:47:12,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a27b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:47:12, skipping insertion in model container [2020-12-09 20:47:12,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:47:12" (3/3) ... [2020-12-09 20:47:12,060 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960b.c [2020-12-09 20:47:12,070 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 20:47:12,073 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 20:47:12,080 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 20:47:12,096 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 20:47:12,096 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 20:47:12,096 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 20:47:12,096 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 20:47:12,097 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 20:47:12,097 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 20:47:12,097 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 20:47:12,097 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 20:47:12,105 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-12-09 20:47:12,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 20:47:12,109 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:47:12,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:47:12,110 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:47:12,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:47:12,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1655029915, now seen corresponding path program 1 times [2020-12-09 20:47:12,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:47:12,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119269520] [2020-12-09 20:47:12,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 20:47:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:47:12,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 20:47:12,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:47:12,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:47:12,714 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:47:12,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119269520] [2020-12-09 20:47:12,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:47:12,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:47:12,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357623630] [2020-12-09 20:47:12,719 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 20:47:12,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:47:12,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 20:47:12,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 20:47:12,728 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2020-12-09 20:47:12,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:47:12,741 INFO L93 Difference]: Finished difference Result 92 states and 150 transitions. [2020-12-09 20:47:12,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 20:47:12,742 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-09 20:47:12,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:47:12,748 INFO L225 Difference]: With dead ends: 92 [2020-12-09 20:47:12,748 INFO L226 Difference]: Without dead ends: 44 [2020-12-09 20:47:12,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 20:47:12,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-09 20:47:12,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-12-09 20:47:12,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-09 20:47:12,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2020-12-09 20:47:12,776 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 11 [2020-12-09 20:47:12,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:47:12,776 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2020-12-09 20:47:12,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 20:47:12,777 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2020-12-09 20:47:12,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 20:47:12,777 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:47:12,777 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:47:12,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 20:47:12,979 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:47:12,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:47:12,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1598915326, now seen corresponding path program 1 times [2020-12-09 20:47:12,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:47:12,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046496287] [2020-12-09 20:47:12,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 20:47:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:47:13,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-09 20:47:13,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:47:13,881 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:47:14,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:47:14,069 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:47:14,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046496287] [2020-12-09 20:47:14,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:47:14,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-09 20:47:14,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397185126] [2020-12-09 20:47:14,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 20:47:14,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:47:14,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 20:47:14,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-09 20:47:14,072 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand 8 states. [2020-12-09 20:47:15,846 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-09 20:47:16,575 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-09 20:47:17,755 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-12-09 20:47:41,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:47:41,448 INFO L93 Difference]: Finished difference Result 61 states and 73 transitions. [2020-12-09 20:47:41,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 20:47:41,482 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-12-09 20:47:41,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:47:41,484 INFO L225 Difference]: With dead ends: 61 [2020-12-09 20:47:41,484 INFO L226 Difference]: Without dead ends: 53 [2020-12-09 20:47:41,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-12-09 20:47:41,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-12-09 20:47:41,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2020-12-09 20:47:41,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-09 20:47:41,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2020-12-09 20:47:41,491 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 13 [2020-12-09 20:47:41,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:47:41,491 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2020-12-09 20:47:41,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 20:47:41,491 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2020-12-09 20:47:41,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 20:47:41,492 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:47:41,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:47:41,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 20:47:41,693 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:47:41,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:47:41,695 INFO L82 PathProgramCache]: Analyzing trace with hash -657075683, now seen corresponding path program 1 times [2020-12-09 20:47:41,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:47:41,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966493799] [2020-12-09 20:47:41,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 20:47:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:47:42,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 20:47:42,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:47:42,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:47:42,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:47:42,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966493799] [2020-12-09 20:47:42,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:47:42,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 20:47:42,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913993016] [2020-12-09 20:47:42,397 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:47:42,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:47:42,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:47:42,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:47:42,398 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand 4 states. [2020-12-09 20:47:42,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:47:42,467 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2020-12-09 20:47:42,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:47:42,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-09 20:47:42,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:47:42,468 INFO L225 Difference]: With dead ends: 44 [2020-12-09 20:47:42,468 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 20:47:42,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:47:42,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 20:47:42,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 20:47:42,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 20:47:42,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 20:47:42,470 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-09 20:47:42,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:47:42,470 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 20:47:42,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:47:42,471 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 20:47:42,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 20:47:42,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 20:47:42,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 20:47:42,869 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-09 20:47:43,068 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-09 20:47:43,148 INFO L262 CegarLoopResult]: For program point L126-1(lines 126 130) no Hoare annotation was computed. [2020-12-09 20:47:43,148 INFO L258 CegarLoopResult]: At program point L126-2(lines 126 130) the Hoare annotation is: false [2020-12-09 20:47:43,149 INFO L262 CegarLoopResult]: For program point L110-1(lines 110 114) no Hoare annotation was computed. [2020-12-09 20:47:43,149 INFO L258 CegarLoopResult]: At program point L110-2(lines 110 114) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0)) ~two25_log10~0) (= ULTIMATE.start___ieee754_log10f_~x (fp.neg (_ +zero 8 24))) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-12-09 20:47:43,149 INFO L262 CegarLoopResult]: For program point L110-3(lines 110 114) no Hoare annotation was computed. [2020-12-09 20:47:43,149 INFO L262 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-12-09 20:47:43,149 INFO L262 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-12-09 20:47:43,149 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 20:47:43,149 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 20:47:43,149 INFO L262 CegarLoopResult]: For program point L119(lines 119 120) no Hoare annotation was computed. [2020-12-09 20:47:43,149 INFO L262 CegarLoopResult]: For program point L86(lines 86 90) no Hoare annotation was computed. [2020-12-09 20:47:43,149 INFO L262 CegarLoopResult]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2020-12-09 20:47:43,149 INFO L258 CegarLoopResult]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2020-12-09 20:47:43,149 INFO L262 CegarLoopResult]: For program point L136-3(lines 136 140) no Hoare annotation was computed. [2020-12-09 20:47:43,150 INFO L258 CegarLoopResult]: At program point L95(lines 21 97) the Hoare annotation is: false [2020-12-09 20:47:43,150 INFO L262 CegarLoopResult]: For program point L38(lines 38 46) no Hoare annotation was computed. [2020-12-09 20:47:43,150 INFO L262 CegarLoopResult]: For program point L38-1(lines 38 46) no Hoare annotation was computed. [2020-12-09 20:47:43,150 INFO L258 CegarLoopResult]: At program point L154(lines 146 155) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))) ULTIMATE.start_isinf_float_~x)) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0)) ~two25_log10~0) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|)) (= (bvadd |ULTIMATE.start_isinf_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-12-09 20:47:43,150 INFO L262 CegarLoopResult]: For program point L121(lines 121 122) no Hoare annotation was computed. [2020-12-09 20:47:43,150 INFO L265 CegarLoopResult]: At program point L172(lines 157 173) the Hoare annotation is: true [2020-12-09 20:47:43,150 INFO L262 CegarLoopResult]: For program point L32(lines 32 33) no Hoare annotation was computed. [2020-12-09 20:47:43,150 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 20:47:43,150 INFO L262 CegarLoopResult]: For program point L123(lines 123 131) no Hoare annotation was computed. [2020-12-09 20:47:43,150 INFO L262 CegarLoopResult]: For program point L123-1(lines 123 131) no Hoare annotation was computed. [2020-12-09 20:47:43,150 INFO L262 CegarLoopResult]: For program point L57(lines 57 73) no Hoare annotation was computed. [2020-12-09 20:47:43,151 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 168) no Hoare annotation was computed. [2020-12-09 20:47:43,151 INFO L262 CegarLoopResult]: For program point L148-1(lines 148 152) no Hoare annotation was computed. [2020-12-09 20:47:43,151 INFO L258 CegarLoopResult]: At program point L148-2(lines 148 152) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))) ULTIMATE.start_isinf_float_~x)) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0)) ~two25_log10~0) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|)) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-12-09 20:47:43,151 INFO L262 CegarLoopResult]: For program point L148-3(lines 148 152) no Hoare annotation was computed. [2020-12-09 20:47:43,151 INFO L262 CegarLoopResult]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2020-12-09 20:47:43,151 INFO L258 CegarLoopResult]: At program point L41-2(lines 41 45) the Hoare annotation is: false [2020-12-09 20:47:43,151 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 20:47:43,151 INFO L262 CegarLoopResult]: For program point L58(lines 58 65) no Hoare annotation was computed. [2020-12-09 20:47:43,151 INFO L262 CegarLoopResult]: For program point L25-1(lines 25 29) no Hoare annotation was computed. [2020-12-09 20:47:43,152 INFO L258 CegarLoopResult]: At program point L25-2(lines 25 29) the Hoare annotation is: false [2020-12-09 20:47:43,152 INFO L262 CegarLoopResult]: For program point L25-3(lines 25 29) no Hoare annotation was computed. [2020-12-09 20:47:43,152 INFO L262 CegarLoopResult]: For program point L50-1(lines 50 54) no Hoare annotation was computed. [2020-12-09 20:47:43,152 INFO L258 CegarLoopResult]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2020-12-09 20:47:43,152 INFO L262 CegarLoopResult]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2020-12-09 20:47:43,152 INFO L262 CegarLoopResult]: For program point L67(lines 67 72) no Hoare annotation was computed. [2020-12-09 20:47:43,152 INFO L262 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-12-09 20:47:43,152 INFO L262 CegarLoopResult]: For program point L92(lines 92 95) no Hoare annotation was computed. [2020-12-09 20:47:43,153 INFO L262 CegarLoopResult]: For program point L59(lines 59 64) no Hoare annotation was computed. [2020-12-09 20:47:43,153 INFO L262 CegarLoopResult]: For program point L117(lines 117 118) no Hoare annotation was computed. [2020-12-09 20:47:43,153 INFO L262 CegarLoopResult]: For program point L84(lines 84 96) no Hoare annotation was computed. [2020-12-09 20:47:43,153 INFO L258 CegarLoopResult]: At program point L142(lines 106 143) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0)) ~two25_log10~0) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|)) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-12-09 20:47:43,153 INFO L262 CegarLoopResult]: For program point L167(lines 167 170) no Hoare annotation was computed. [2020-12-09 20:47:43,161 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,162 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,162 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,162 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,163 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,163 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,163 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,163 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,170 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,170 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,170 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,170 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,171 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,171 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,171 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,171 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,173 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,173 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,174 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,174 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,174 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,174 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,174 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,175 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,175 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,176 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,177 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,177 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,177 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,178 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,178 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,178 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:47:43 BoogieIcfgContainer [2020-12-09 20:47:43,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 20:47:43,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 20:47:43,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 20:47:43,182 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 20:47:43,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:47:12" (3/4) ... [2020-12-09 20:47:43,185 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 20:47:43,195 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2020-12-09 20:47:43,196 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-09 20:47:43,196 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 20:47:43,196 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 20:47:43,213 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) == two25_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-12-09 20:47:43,213 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == x) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) == two25_log10) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-12-09 20:47:43,214 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == x) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) == two25_log10) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == \result)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-12-09 20:47:43,241 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3aab5467-0b57-4a81-a4f2-a8289ced40dc/bin/utaipan/witness.graphml [2020-12-09 20:47:43,241 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 20:47:43,242 INFO L168 Benchmark]: Toolchain (without parser) took 57821.53 ms. Allocated memory was 52.4 MB in the beginning and 83.9 MB in the end (delta: 31.5 MB). Free memory was 34.3 MB in the beginning and 40.5 MB in the end (delta: -6.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2020-12-09 20:47:43,242 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 52.4 MB. Free memory is still 34.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:47:43,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.57 ms. Allocated memory was 52.4 MB in the beginning and 83.9 MB in the end (delta: 31.5 MB). Free memory was 34.2 MB in the beginning and 65.9 MB in the end (delta: -31.7 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-12-09 20:47:43,242 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.36 ms. Allocated memory is still 83.9 MB. Free memory was 65.5 MB in the beginning and 63.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 20:47:43,243 INFO L168 Benchmark]: Boogie Preprocessor took 42.28 ms. Allocated memory is still 83.9 MB. Free memory was 63.3 MB in the beginning and 61.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 20:47:43,243 INFO L168 Benchmark]: RCFGBuilder took 26286.21 ms. Allocated memory is still 83.9 MB. Free memory was 61.3 MB in the beginning and 60.7 MB in the end (delta: 527.5 kB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. [2020-12-09 20:47:43,243 INFO L168 Benchmark]: TraceAbstraction took 31125.45 ms. Allocated memory is still 83.9 MB. Free memory was 60.0 MB in the beginning and 46.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-12-09 20:47:43,244 INFO L168 Benchmark]: Witness Printer took 59.10 ms. Allocated memory is still 83.9 MB. Free memory was 46.6 MB in the beginning and 40.5 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 20:47:43,245 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 52.4 MB. Free memory is still 34.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 252.57 ms. Allocated memory was 52.4 MB in the beginning and 83.9 MB in the end (delta: 31.5 MB). Free memory was 34.2 MB in the beginning and 65.9 MB in the end (delta: -31.7 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.36 ms. Allocated memory is still 83.9 MB. Free memory was 65.5 MB in the beginning and 63.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.28 ms. Allocated memory is still 83.9 MB. Free memory was 63.3 MB in the beginning and 61.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 26286.21 ms. Allocated memory is still 83.9 MB. Free memory was 61.3 MB in the beginning and 60.7 MB in the end (delta: 527.5 kB). Peak memory consumption was 29.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 31125.45 ms. Allocated memory is still 83.9 MB. Free memory was 60.0 MB in the beginning and 46.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * Witness Printer took 59.10 ms. Allocated memory is still 83.9 MB. Free memory was 46.6 MB in the beginning and 40.5 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 168]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant [2020-12-09 20:47:43,249 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,249 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,249 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,249 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,251 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,251 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,251 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == x) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) == two25_log10) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == \result)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) == two25_log10 && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 148]: Loop Invariant [2020-12-09 20:47:43,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,252 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == x) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) == two25_log10) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 106]: Loop Invariant [2020-12-09 20:47:43,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 20:47:43,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) == two25_log10 && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())) == \result)) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 30.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 27.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 105 SDtfs, 55 SDslu, 212 SDs, 0 SdLazy, 79 SolverSat, 3 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 25.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 138 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 4 QuantifiedInterpolants, 2363 SizeOfPredicates, 15 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...