./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0910b.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_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/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 c07e352bcbba2d31c9106eacdc6e86cfa9e8af72 ................................................................................................................................................................................................................................................................................................................................. 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_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/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 c07e352bcbba2d31c9106eacdc6e86cfa9e8af72 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:52:54,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 15:52:54,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 15:52:54,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 15:52:54,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 15:52:54,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 15:52:54,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 15:52:54,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 15:52:54,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 15:52:54,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 15:52:54,051 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 15:52:54,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 15:52:54,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 15:52:54,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 15:52:54,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 15:52:54,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 15:52:54,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 15:52:54,057 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 15:52:54,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 15:52:54,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 15:52:54,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 15:52:54,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 15:52:54,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 15:52:54,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 15:52:54,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 15:52:54,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 15:52:54,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 15:52:54,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 15:52:54,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 15:52:54,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 15:52:54,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 15:52:54,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 15:52:54,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 15:52:54,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 15:52:54,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 15:52:54,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 15:52:54,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 15:52:54,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 15:52:54,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 15:52:54,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 15:52:54,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 15:52:54,075 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 15:52:54,092 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 15:52:54,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 15:52:54,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 15:52:54,093 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 15:52:54,093 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 15:52:54,093 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 15:52:54,093 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 15:52:54,093 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 15:52:54,093 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 15:52:54,093 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 15:52:54,093 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 15:52:54,094 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 15:52:54,094 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 15:52:54,094 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 15:52:54,094 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 15:52:54,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 15:52:54,095 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 15:52:54,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 15:52:54,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 15:52:54,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 15:52:54,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 15:52:54,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 15:52:54,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 15:52:54,095 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 15:52:54,096 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 15:52:54,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 15:52:54,096 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 15:52:54,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 15:52:54,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 15:52:54,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 15:52:54,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 15:52:54,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 15:52:54,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 15:52:54,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 15:52:54,097 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 15:52:54,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 15:52:54,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 15:52:54,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 15:52:54,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 15:52:54,097 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_f2729ffb-25f9-4da1-96ce-2f2edf473724/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c07e352bcbba2d31c9106eacdc6e86cfa9e8af72 [2020-12-09 15:52:54,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 15:52:54,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 15:52:54,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 15:52:54,299 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 15:52:54,299 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 15:52:54,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2020-12-09 15:52:54,340 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/data/0d5e67763/507b99f5fc6a453f90548e05892e5131/FLAG2f3f892cf [2020-12-09 15:52:54,738 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 15:52:54,739 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2020-12-09 15:52:54,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/data/0d5e67763/507b99f5fc6a453f90548e05892e5131/FLAG2f3f892cf [2020-12-09 15:52:54,755 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/data/0d5e67763/507b99f5fc6a453f90548e05892e5131 [2020-12-09 15:52:54,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 15:52:54,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 15:52:54,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 15:52:54,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 15:52:54,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 15:52:54,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:52:54" (1/1) ... [2020-12-09 15:52:54,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@567fcbad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54, skipping insertion in model container [2020-12-09 15:52:54,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:52:54" (1/1) ... [2020-12-09 15:52:54,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 15:52:54,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 15:52:54,928 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_f2729ffb-25f9-4da1-96ce-2f2edf473724/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c[3599,3612] [2020-12-09 15:52:54,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:52:54,936 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 15:52:54,961 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_f2729ffb-25f9-4da1-96ce-2f2edf473724/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c[3599,3612] [2020-12-09 15:52:54,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:52:54,972 INFO L208 MainTranslator]: Completed translation [2020-12-09 15:52:54,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54 WrapperNode [2020-12-09 15:52:54,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 15:52:54,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 15:52:54,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 15:52:54,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 15:52:54,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2020-12-09 15:52:54,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2020-12-09 15:52:55,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 15:52:55,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 15:52:55,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 15:52:55,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 15:52:55,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2020-12-09 15:52:55,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2020-12-09 15:52:55,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2020-12-09 15:52:55,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2020-12-09 15:52:55,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2020-12-09 15:52:55,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2020-12-09 15:52:55,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2020-12-09 15:52:55,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 15:52:55,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 15:52:55,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 15:52:55,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 15:52:55,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/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 15:52:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 15:52:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 15:52:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 15:52:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 15:52:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 15:52:55,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 15:52:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 15:52:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 15:52:55,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 15:52:55,452 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 15:52:55,452 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-09 15:52:55,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:52:55 BoogieIcfgContainer [2020-12-09 15:52:55,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 15:52:55,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 15:52:55,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 15:52:55,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 15:52:55,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:52:54" (1/3) ... [2020-12-09 15:52:55,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d58c7a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:52:55, skipping insertion in model container [2020-12-09 15:52:55,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (2/3) ... [2020-12-09 15:52:55,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d58c7a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:52:55, skipping insertion in model container [2020-12-09 15:52:55,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:52:55" (3/3) ... [2020-12-09 15:52:55,459 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910b.c [2020-12-09 15:52:55,469 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 15:52:55,472 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 15:52:55,482 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 15:52:55,504 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 15:52:55,504 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 15:52:55,504 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 15:52:55,504 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 15:52:55,504 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 15:52:55,504 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 15:52:55,505 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 15:52:55,505 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 15:52:55,513 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-12-09 15:52:55,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 15:52:55,517 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:52:55,517 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:52:55,518 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:52:55,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:52:55,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1544195697, now seen corresponding path program 1 times [2020-12-09 15:52:55,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:52:55,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569413920] [2020-12-09 15:52:55,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:52:55,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:52:55,627 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 15:52:55,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569413920] [2020-12-09 15:52:55,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:52:55,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 15:52:55,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120926928] [2020-12-09 15:52:55,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 15:52:55,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:52:55,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 15:52:55,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 15:52:55,642 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-12-09 15:52:55,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:52:55,654 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2020-12-09 15:52:55,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 15:52:55,655 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-09 15:52:55,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:52:55,661 INFO L225 Difference]: With dead ends: 43 [2020-12-09 15:52:55,661 INFO L226 Difference]: Without dead ends: 20 [2020-12-09 15:52:55,663 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 15:52:55,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-09 15:52:55,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-12-09 15:52:55,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-09 15:52:55,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2020-12-09 15:52:55,686 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 10 [2020-12-09 15:52:55,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:52:55,686 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2020-12-09 15:52:55,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 15:52:55,686 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2020-12-09 15:52:55,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 15:52:55,686 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:52:55,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:52:55,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 15:52:55,687 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:52:55,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:52:55,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1170194359, now seen corresponding path program 1 times [2020-12-09 15:52:55,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:52:55,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060657531] [2020-12-09 15:52:55,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:52:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 15:52:55,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 15:52:55,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 15:52:55,794 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 15:52:55,814 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 15:52:55,815 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 15:52:55,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 15:52:55,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:52:55 BoogieIcfgContainer [2020-12-09 15:52:55,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 15:52:55,840 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 15:52:55,840 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 15:52:55,841 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 15:52:55,841 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:52:55" (3/4) ... [2020-12-09 15:52:55,843 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 15:52:55,843 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 15:52:55,845 INFO L168 Benchmark]: Toolchain (without parser) took 1086.16 ms. Allocated memory is still 109.1 MB. Free memory was 71.7 MB in the beginning and 51.4 MB in the end (delta: 20.4 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2020-12-09 15:52:55,845 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 109.1 MB. Free memory is still 88.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:52:55,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.22 ms. Allocated memory is still 109.1 MB. Free memory was 71.6 MB in the beginning and 83.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 15:52:55,846 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.04 ms. Allocated memory is still 109.1 MB. Free memory was 83.4 MB in the beginning and 81.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 15:52:55,847 INFO L168 Benchmark]: Boogie Preprocessor took 22.28 ms. Allocated memory is still 109.1 MB. Free memory was 81.3 MB in the beginning and 79.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 15:52:55,847 INFO L168 Benchmark]: RCFGBuilder took 421.60 ms. Allocated memory is still 109.1 MB. Free memory was 79.6 MB in the beginning and 80.6 MB in the end (delta: -998.6 kB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2020-12-09 15:52:55,847 INFO L168 Benchmark]: TraceAbstraction took 385.26 ms. Allocated memory is still 109.1 MB. Free memory was 79.9 MB in the beginning and 52.0 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-12-09 15:52:55,848 INFO L168 Benchmark]: Witness Printer took 3.00 ms. Allocated memory is still 109.1 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:52:55,850 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 109.1 MB. Free memory is still 88.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 213.22 ms. Allocated memory is still 109.1 MB. Free memory was 71.6 MB in the beginning and 83.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.04 ms. Allocated memory is still 109.1 MB. Free memory was 83.4 MB in the beginning and 81.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.28 ms. Allocated memory is still 109.1 MB. Free memory was 81.3 MB in the beginning and 79.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 421.60 ms. Allocated memory is still 109.1 MB. Free memory was 79.6 MB in the beginning and 80.6 MB in the end (delta: -998.6 kB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 385.26 ms. Allocated memory is still 109.1 MB. Free memory was 79.9 MB in the beginning and 52.0 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Witness Printer took 3.00 ms. Allocated memory is still 109.1 MB. Free memory is still 51.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 139]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 29, overapproximation of someUnaryDOUBLEoperation at line 134, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L134] double x = -0.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L135] double res = __ieee754_log(x); [L21] __int32_t hx, lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L138] COND TRUE !isinf_double(res) [L139] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 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=22occurred 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 15:52:57,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 15:52:57,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 15:52:57,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 15:52:57,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 15:52:57,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 15:52:57,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 15:52:57,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 15:52:57,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 15:52:57,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 15:52:57,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 15:52:57,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 15:52:57,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 15:52:57,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 15:52:57,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 15:52:57,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 15:52:57,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 15:52:57,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 15:52:57,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 15:52:57,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 15:52:57,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 15:52:57,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 15:52:57,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 15:52:57,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 15:52:57,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 15:52:57,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 15:52:57,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 15:52:57,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 15:52:57,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 15:52:57,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 15:52:57,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 15:52:57,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 15:52:57,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 15:52:57,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 15:52:57,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 15:52:57,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 15:52:57,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 15:52:57,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 15:52:57,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 15:52:57,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 15:52:57,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 15:52:57,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 15:52:57,498 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 15:52:57,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 15:52:57,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 15:52:57,499 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 15:52:57,499 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 15:52:57,499 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 15:52:57,500 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 15:52:57,500 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 15:52:57,500 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 15:52:57,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 15:52:57,501 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 15:52:57,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 15:52:57,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 15:52:57,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 15:52:57,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 15:52:57,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 15:52:57,502 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 15:52:57,502 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 15:52:57,503 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 15:52:57,503 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 15:52:57,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 15:52:57,503 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 15:52:57,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 15:52:57,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 15:52:57,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 15:52:57,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 15:52:57,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 15:52:57,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 15:52:57,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 15:52:57,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 15:52:57,505 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 15:52:57,505 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 15:52:57,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 15:52:57,506 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 15:52:57,506 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 15:52:57,506 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_f2729ffb-25f9-4da1-96ce-2f2edf473724/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c07e352bcbba2d31c9106eacdc6e86cfa9e8af72 [2020-12-09 15:52:57,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 15:52:57,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 15:52:57,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 15:52:57,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 15:52:57,782 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 15:52:57,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2020-12-09 15:52:57,822 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/data/db6e67bb9/a7a98e9968a343f0ba1d819789ac1cff/FLAGecc102b7f [2020-12-09 15:52:58,199 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 15:52:58,199 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2020-12-09 15:52:58,205 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/data/db6e67bb9/a7a98e9968a343f0ba1d819789ac1cff/FLAGecc102b7f [2020-12-09 15:52:58,216 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/data/db6e67bb9/a7a98e9968a343f0ba1d819789ac1cff [2020-12-09 15:52:58,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 15:52:58,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 15:52:58,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 15:52:58,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 15:52:58,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 15:52:58,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:52:58" (1/1) ... [2020-12-09 15:52:58,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1101aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:58, skipping insertion in model container [2020-12-09 15:52:58,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:52:58" (1/1) ... [2020-12-09 15:52:58,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 15:52:58,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 15:52:58,397 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_f2729ffb-25f9-4da1-96ce-2f2edf473724/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c[3599,3612] [2020-12-09 15:52:58,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:52:58,420 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 15:52:58,454 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_f2729ffb-25f9-4da1-96ce-2f2edf473724/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c[3599,3612] [2020-12-09 15:52:58,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:52:58,474 INFO L208 MainTranslator]: Completed translation [2020-12-09 15:52:58,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:58 WrapperNode [2020-12-09 15:52:58,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 15:52:58,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 15:52:58,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 15:52:58,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 15:52:58,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:58" (1/1) ... [2020-12-09 15:52:58,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:58" (1/1) ... [2020-12-09 15:52:58,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 15:52:58,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 15:52:58,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 15:52:58,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 15:52:58,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:58" (1/1) ... [2020-12-09 15:52:58,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:58" (1/1) ... [2020-12-09 15:52:58,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:58" (1/1) ... [2020-12-09 15:52:58,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:58" (1/1) ... [2020-12-09 15:52:58,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:58" (1/1) ... [2020-12-09 15:52:58,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:58" (1/1) ... [2020-12-09 15:52:58,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:58" (1/1) ... [2020-12-09 15:52:58,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 15:52:58,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 15:52:58,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 15:52:58,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 15:52:58,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/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 15:52:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-09 15:52:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-09 15:52:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 15:52:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 15:52:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 15:52:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 15:52:58,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 15:52:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 15:52:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 15:53:25,031 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 15:53:25,031 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-09 15:53:25,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:53:25 BoogieIcfgContainer [2020-12-09 15:53:25,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 15:53:25,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 15:53:25,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 15:53:25,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 15:53:25,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:52:58" (1/3) ... [2020-12-09 15:53:25,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4b65c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:53:25, skipping insertion in model container [2020-12-09 15:53:25,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:58" (2/3) ... [2020-12-09 15:53:25,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b4b65c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:53:25, skipping insertion in model container [2020-12-09 15:53:25,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:53:25" (3/3) ... [2020-12-09 15:53:25,040 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910b.c [2020-12-09 15:53:25,052 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 15:53:25,056 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 15:53:25,064 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 15:53:25,084 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 15:53:25,084 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 15:53:25,084 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 15:53:25,084 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 15:53:25,084 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 15:53:25,084 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 15:53:25,084 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 15:53:25,084 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 15:53:25,093 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-12-09 15:53:25,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 15:53:25,097 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:53:25,097 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:53:25,098 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:53:25,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:53:25,101 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2020-12-09 15:53:25,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 15:53:25,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [313647909] [2020-12-09 15:53:25,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/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 15:53:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:53:25,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 15:53:25,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:53:25,939 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 15:53:25,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 15:53:25,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [313647909] [2020-12-09 15:53:25,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:53:25,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 15:53:25,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150433106] [2020-12-09 15:53:25,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 15:53:25,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 15:53:25,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 15:53:25,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 15:53:25,953 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2020-12-09 15:53:25,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:53:25,965 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2020-12-09 15:53:25,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 15:53:25,966 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-09 15:53:25,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:53:25,972 INFO L225 Difference]: With dead ends: 62 [2020-12-09 15:53:25,972 INFO L226 Difference]: Without dead ends: 29 [2020-12-09 15:53:25,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 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 15:53:25,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-09 15:53:25,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-09 15:53:25,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-09 15:53:25,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-12-09 15:53:25,996 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2020-12-09 15:53:25,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:53:25,996 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-12-09 15:53:25,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 15:53:25,996 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-12-09 15:53:25,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 15:53:25,997 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:53:25,997 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:53:26,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 15:53:26,198 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:53:26,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:53:26,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2020-12-09 15:53:26,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 15:53:26,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775063180] [2020-12-09 15:53:26,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/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 15:53:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:53:27,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-09 15:53:27,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:53:27,550 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-09 15:53:27,595 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 15:53:27,626 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 15:53:27,627 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 15:53:27,744 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-09 15:53:27,745 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 15:53:27,749 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-09 15:53:27,749 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:24 [2020-12-09 15:53:28,490 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 15:53:28,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 15:53:28,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775063180] [2020-12-09 15:53:28,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:53:28,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-09 15:53:28,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206297478] [2020-12-09 15:53:28,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 15:53:28,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 15:53:28,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 15:53:28,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-09 15:53:28,495 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand 8 states. [2020-12-09 15:53:31,299 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-09 15:53:32,071 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-09 15:53:37,769 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-09 15:53:38,709 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-09 15:53:43,131 WARN L197 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-09 15:54:11,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:54:11,850 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2020-12-09 15:54:11,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 15:54:11,852 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-12-09 15:54:11,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:54:11,853 INFO L225 Difference]: With dead ends: 45 [2020-12-09 15:54:11,853 INFO L226 Difference]: Without dead ends: 37 [2020-12-09 15:54:11,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-12-09 15:54:11,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-09 15:54:11,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2020-12-09 15:54:11,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-09 15:54:11,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2020-12-09 15:54:11,858 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 14 [2020-12-09 15:54:11,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:54:11,859 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2020-12-09 15:54:11,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 15:54:11,859 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2020-12-09 15:54:11,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 15:54:11,859 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:54:11,859 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:54:12,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 15:54:12,062 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:54:12,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:54:12,063 INFO L82 PathProgramCache]: Analyzing trace with hash 2016616349, now seen corresponding path program 1 times [2020-12-09 15:54:12,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 15:54:12,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511354558] [2020-12-09 15:54:12,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/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 15:54:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:54:12,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 15:54:12,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:54:12,403 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 15:54:12,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 15:54:12,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511354558] [2020-12-09 15:54:12,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:54:12,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 15:54:12,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634696905] [2020-12-09 15:54:12,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 15:54:12,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 15:54:12,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 15:54:12,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 15:54:12,406 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand 4 states. [2020-12-09 15:54:12,598 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-09 15:54:15,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:54:15,495 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2020-12-09 15:54:15,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 15:54:15,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-09 15:54:15,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:54:15,521 INFO L225 Difference]: With dead ends: 37 [2020-12-09 15:54:15,521 INFO L226 Difference]: Without dead ends: 16 [2020-12-09 15:54:15,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:54:15,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-09 15:54:15,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-09 15:54:15,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-09 15:54:15,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-12-09 15:54:15,524 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 14 [2020-12-09 15:54:15,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:54:15,524 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-12-09 15:54:15,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 15:54:15,524 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-12-09 15:54:15,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-09 15:54:15,525 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:54:15,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:54:15,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 15:54:15,727 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:54:15,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:54:15,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1126164636, now seen corresponding path program 1 times [2020-12-09 15:54:15,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 15:54:15,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99488865] [2020-12-09 15:54:15,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 15:54:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:54:16,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 15:54:16,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:54:16,807 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-09 15:54:16,851 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 15:54:16,890 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 15:54:16,891 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 15:54:17,044 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-09 15:54:17,045 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 15:54:17,047 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-09 15:54:17,047 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2020-12-09 15:54:17,192 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 15:54:17,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 15:54:17,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99488865] [2020-12-09 15:54:17,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:54:17,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 15:54:17,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028999993] [2020-12-09 15:54:17,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 15:54:17,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 15:54:17,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 15:54:17,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 15:54:17,195 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 4 states. [2020-12-09 15:54:17,384 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-09 15:54:17,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:54:17,407 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-12-09 15:54:17,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 15:54:17,408 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-12-09 15:54:17,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:54:17,409 INFO L225 Difference]: With dead ends: 16 [2020-12-09 15:54:17,409 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 15:54:17,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:54:17,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 15:54:17,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 15:54:17,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 15:54:17,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 15:54:17,411 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-12-09 15:54:17,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:54:17,411 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 15:54:17,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 15:54:17,411 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 15:54:17,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 15:54:17,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 15:54:17,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 15:54:17,925 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-09 15:54:18,105 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-09 15:54:18,279 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 15:54:18,479 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-09 15:54:18,481 INFO L262 CegarLoopResult]: For program point L60(lines 60 72) no Hoare annotation was computed. [2020-12-09 15:54:18,481 INFO L262 CegarLoopResult]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2020-12-09 15:54:18,481 INFO L262 CegarLoopResult]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2020-12-09 15:54:18,481 INFO L258 CegarLoopResult]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_log_~x (fp.neg (_ +zero 11 53))) (= ~zero~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0) ~two54_log~0)) [2020-12-09 15:54:18,481 INFO L262 CegarLoopResult]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2020-12-09 15:54:18,482 INFO L265 CegarLoopResult]: At program point L143(lines 128 144) the Hoare annotation is: true [2020-12-09 15:54:18,482 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 15:54:18,482 INFO L262 CegarLoopResult]: For program point L61(lines 61 62) no Hoare annotation was computed. [2020-12-09 15:54:18,482 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 15:54:18,482 INFO L262 CegarLoopResult]: For program point L86(lines 86 102) no Hoare annotation was computed. [2020-12-09 15:54:18,482 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2020-12-09 15:54:18,482 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2020-12-09 15:54:18,482 INFO L262 CegarLoopResult]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2020-12-09 15:54:18,482 INFO L262 CegarLoopResult]: For program point L87(lines 87 94) no Hoare annotation was computed. [2020-12-09 15:54:18,482 INFO L262 CegarLoopResult]: For program point L96(lines 96 101) no Hoare annotation was computed. [2020-12-09 15:54:18,483 INFO L262 CegarLoopResult]: For program point L63(lines 63 64) no Hoare annotation was computed. [2020-12-09 15:54:18,483 INFO L262 CegarLoopResult]: For program point L121(lines 121 124) no Hoare annotation was computed. [2020-12-09 15:54:18,483 INFO L262 CegarLoopResult]: For program point L88(lines 88 93) no Hoare annotation was computed. [2020-12-09 15:54:18,483 INFO L262 CegarLoopResult]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2020-12-09 15:54:18,483 INFO L258 CegarLoopResult]: At program point L22-2(lines 22 27) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_isinf_double_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|)) (= ~zero~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0) ~two54_log~0)) [2020-12-09 15:54:18,483 INFO L262 CegarLoopResult]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2020-12-09 15:54:18,483 INFO L262 CegarLoopResult]: For program point L113(lines 113 125) no Hoare annotation was computed. [2020-12-09 15:54:18,483 INFO L262 CegarLoopResult]: For program point L138(lines 138 141) no Hoare annotation was computed. [2020-12-09 15:54:18,484 INFO L258 CegarLoopResult]: At program point L31(lines 20 32) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_isinf_double_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|)) (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|))) (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_9|))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32)))) (_ bv2146435072 32)))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) |ULTIMATE.start_isinf_double_#res|))) (= ~zero~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0) ~two54_log~0)) [2020-12-09 15:54:18,484 INFO L262 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-12-09 15:54:18,484 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 15:54:18,484 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2020-12-09 15:54:18,484 INFO L262 CegarLoopResult]: For program point L115(lines 115 119) no Hoare annotation was computed. [2020-12-09 15:54:18,484 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 15:54:18,484 INFO L258 CegarLoopResult]: At program point L124(lines 47 126) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|)) (= ~zero~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0) ~two54_log~0)) [2020-12-09 15:54:18,484 INFO L262 CegarLoopResult]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2020-12-09 15:54:18,484 INFO L258 CegarLoopResult]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2020-12-09 15:54:18,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,492 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,493 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,493 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,493 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,502 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,502 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,502 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,503 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:54:18 BoogieIcfgContainer [2020-12-09 15:54:18,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 15:54:18,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 15:54:18,508 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 15:54:18,508 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 15:54:18,509 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:53:25" (3/4) ... [2020-12-09 15:54:18,511 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 15:54:18,519 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-09 15:54:18,519 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-09 15:54:18,520 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 15:54:18,520 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 15:54:18,536 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log [2020-12-09 15:54:18,536 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result)) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log [2020-12-09 15:54:18,537 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result)) && (\exists v_skolemized_q#valueAsBitvector_9 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]) && ~bvadd64(~bvneg32(~bvlshr32(~bvor32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32))), 2146435072bv32), ~bvneg32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32))), 2146435072bv32))), 31bv32)), 1bv32) == \result)) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log [2020-12-09 15:54:18,560 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f2729ffb-25f9-4da1-96ce-2f2edf473724/bin/utaipan/witness.graphml [2020-12-09 15:54:18,560 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 15:54:18,561 INFO L168 Benchmark]: Toolchain (without parser) took 80341.93 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 30.1 MB in the beginning and 37.2 MB in the end (delta: -7.1 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2020-12-09 15:54:18,562 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 52.4 MB. Free memory is still 34.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:54:18,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.20 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 30.0 MB in the beginning and 48.7 MB in the end (delta: -18.7 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-12-09 15:54:18,563 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.84 ms. Allocated memory is still 67.1 MB. Free memory was 48.7 MB in the beginning and 46.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 15:54:18,563 INFO L168 Benchmark]: Boogie Preprocessor took 28.66 ms. Allocated memory is still 67.1 MB. Free memory was 46.6 MB in the beginning and 44.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 15:54:18,563 INFO L168 Benchmark]: RCFGBuilder took 26488.22 ms. Allocated memory is still 67.1 MB. Free memory was 44.5 MB in the beginning and 37.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2020-12-09 15:54:18,564 INFO L168 Benchmark]: TraceAbstraction took 53473.27 ms. Allocated memory is still 67.1 MB. Free memory was 36.6 MB in the beginning and 42.7 MB in the end (delta: -6.1 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-12-09 15:54:18,564 INFO L168 Benchmark]: Witness Printer took 52.44 ms. Allocated memory is still 67.1 MB. Free memory was 42.7 MB in the beginning and 37.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 15:54:18,566 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 34.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 254.20 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 30.0 MB in the beginning and 48.7 MB in the end (delta: -18.7 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.84 ms. Allocated memory is still 67.1 MB. Free memory was 48.7 MB in the beginning and 46.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.66 ms. Allocated memory is still 67.1 MB. Free memory was 46.6 MB in the beginning and 44.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 26488.22 ms. Allocated memory is still 67.1 MB. Free memory was 44.5 MB in the beginning and 37.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 53473.27 ms. Allocated memory is still 67.1 MB. Free memory was 36.6 MB in the beginning and 42.7 MB in the end (delta: -6.1 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Witness Printer took 52.44 ms. Allocated memory is still 67.1 MB. Free memory was 42.7 MB in the beginning and 37.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation 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[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,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[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,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: 139]: 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: 20]: Loop Invariant [2020-12-09 15:54:18,572 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,572 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,574 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,574 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,574 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,574 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,574 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,574 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,575 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,577 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-09 15:54:18,578 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] Derived loop invariant: ((((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result)) && (\exists v_skolemized_q#valueAsBitvector_9 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]) && ~bvadd64(~bvneg32(~bvlshr32(~bvor32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32))), 2146435072bv32), ~bvneg32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32))), 2146435072bv32))), 31bv32)), 1bv32) == \result)) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant [2020-12-09 15:54:18,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,580 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,580 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,580 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: (x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log - InvariantResult [Line: 22]: Loop Invariant [2020-12-09 15:54:18,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-09 15:54:18,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result)) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 52.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 46.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 44 SDslu, 147 SDs, 0 SdLazy, 66 SolverSat, 4 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 42.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 151 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 13 QuantifiedInterpolants, 5349 SizeOfPredicates, 22 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...