./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.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_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/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 b1ef2080ffd97f82ac51854e7d9813eba864fd0a ....................................................................................................................................................................................................................................................................................................................... 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_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/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 b1ef2080ffd97f82ac51854e7d9813eba864fd0a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:48:09,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 16:48:09,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 16:48:09,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 16:48:09,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 16:48:09,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 16:48:09,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 16:48:09,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 16:48:09,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 16:48:09,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 16:48:09,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 16:48:09,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 16:48:09,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 16:48:09,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 16:48:09,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 16:48:09,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 16:48:09,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 16:48:09,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 16:48:09,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 16:48:09,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 16:48:09,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 16:48:09,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 16:48:09,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 16:48:09,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 16:48:09,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 16:48:09,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 16:48:09,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 16:48:09,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 16:48:09,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 16:48:09,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 16:48:09,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 16:48:09,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 16:48:09,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 16:48:09,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 16:48:09,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 16:48:09,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 16:48:09,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 16:48:09,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 16:48:09,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 16:48:09,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 16:48:09,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 16:48:09,879 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 16:48:09,900 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 16:48:09,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 16:48:09,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 16:48:09,901 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 16:48:09,901 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 16:48:09,901 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 16:48:09,901 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 16:48:09,901 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 16:48:09,901 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 16:48:09,902 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 16:48:09,902 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 16:48:09,902 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 16:48:09,902 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 16:48:09,902 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 16:48:09,902 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 16:48:09,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 16:48:09,903 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 16:48:09,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 16:48:09,903 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 16:48:09,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 16:48:09,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 16:48:09,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 16:48:09,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 16:48:09,904 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 16:48:09,904 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 16:48:09,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 16:48:09,904 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 16:48:09,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 16:48:09,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 16:48:09,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 16:48:09,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 16:48:09,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 16:48:09,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 16:48:09,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 16:48:09,905 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 16:48:09,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 16:48:09,905 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 16:48:09,905 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 16:48:09,905 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 16:48:09,906 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_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1ef2080ffd97f82ac51854e7d9813eba864fd0a [2020-12-09 16:48:10,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 16:48:10,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 16:48:10,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 16:48:10,108 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 16:48:10,109 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 16:48:10,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2020-12-09 16:48:10,149 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/data/baa277ff8/e78516b28dfb41d1ae6810612a087926/FLAG2ccd560bd [2020-12-09 16:48:10,508 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 16:48:10,508 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2020-12-09 16:48:10,514 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/data/baa277ff8/e78516b28dfb41d1ae6810612a087926/FLAG2ccd560bd [2020-12-09 16:48:10,925 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/data/baa277ff8/e78516b28dfb41d1ae6810612a087926 [2020-12-09 16:48:10,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 16:48:10,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 16:48:10,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 16:48:10,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 16:48:10,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 16:48:10,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:48:10" (1/1) ... [2020-12-09 16:48:10,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ed30c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:10, skipping insertion in model container [2020-12-09 16:48:10,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:48:10" (1/1) ... [2020-12-09 16:48:10,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 16:48:10,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 16:48:11,108 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_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c[3883,3896] [2020-12-09 16:48:11,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:48:11,118 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 16:48:11,153 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_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c[3883,3896] [2020-12-09 16:48:11,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:48:11,165 INFO L208 MainTranslator]: Completed translation [2020-12-09 16:48:11,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:11 WrapperNode [2020-12-09 16:48:11,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 16:48:11,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 16:48:11,167 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 16:48:11,167 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 16:48:11,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:11" (1/1) ... [2020-12-09 16:48:11,184 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:11" (1/1) ... [2020-12-09 16:48:11,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 16:48:11,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 16:48:11,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 16:48:11,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 16:48:11,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:11" (1/1) ... [2020-12-09 16:48:11,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:11" (1/1) ... [2020-12-09 16:48:11,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:11" (1/1) ... [2020-12-09 16:48:11,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:11" (1/1) ... [2020-12-09 16:48:11,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:11" (1/1) ... [2020-12-09 16:48:11,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:11" (1/1) ... [2020-12-09 16:48:11,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:11" (1/1) ... [2020-12-09 16:48:11,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 16:48:11,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 16:48:11,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 16:48:11,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 16:48:11,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/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 16:48:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 16:48:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 16:48:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 16:48:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 16:48:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 16:48:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 16:48:11,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 16:48:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 16:48:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-09 16:48:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 16:48:11,829 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 16:48:11,830 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-09 16:48:11,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:48:11 BoogieIcfgContainer [2020-12-09 16:48:11,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 16:48:11,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 16:48:11,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 16:48:11,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 16:48:11,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:48:10" (1/3) ... [2020-12-09 16:48:11,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cde0c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:48:11, skipping insertion in model container [2020-12-09 16:48:11,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:11" (2/3) ... [2020-12-09 16:48:11,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cde0c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:48:11, skipping insertion in model container [2020-12-09 16:48:11,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:48:11" (3/3) ... [2020-12-09 16:48:11,839 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2020-12-09 16:48:11,849 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 16:48:11,851 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 16:48:11,859 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 16:48:11,875 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 16:48:11,875 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 16:48:11,876 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 16:48:11,876 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 16:48:11,876 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 16:48:11,876 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 16:48:11,876 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 16:48:11,876 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 16:48:11,885 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-12-09 16:48:11,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 16:48:11,888 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:48:11,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:48:11,889 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:48:11,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:48:11,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1459360728, now seen corresponding path program 1 times [2020-12-09 16:48:11,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:48:11,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259570911] [2020-12-09 16:48:11,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:48:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:48:11,989 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 16:48:11,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259570911] [2020-12-09 16:48:11,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:48:11,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 16:48:11,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664574678] [2020-12-09 16:48:11,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 16:48:11,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 16:48:12,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 16:48:12,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 16:48:12,003 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2020-12-09 16:48:12,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:48:12,016 INFO L93 Difference]: Finished difference Result 77 states and 131 transitions. [2020-12-09 16:48:12,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 16:48:12,017 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-09 16:48:12,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:48:12,023 INFO L225 Difference]: With dead ends: 77 [2020-12-09 16:48:12,023 INFO L226 Difference]: Without dead ends: 37 [2020-12-09 16:48:12,025 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 16:48:12,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-09 16:48:12,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-12-09 16:48:12,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-09 16:48:12,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2020-12-09 16:48:12,049 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 8 [2020-12-09 16:48:12,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:48:12,049 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2020-12-09 16:48:12,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 16:48:12,049 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2020-12-09 16:48:12,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 16:48:12,049 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:48:12,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:48:12,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 16:48:12,050 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:48:12,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:48:12,051 INFO L82 PathProgramCache]: Analyzing trace with hash -724915525, now seen corresponding path program 1 times [2020-12-09 16:48:12,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 16:48:12,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304175656] [2020-12-09 16:48:12,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 16:48:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 16:48:12,096 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 16:48:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 16:48:12,127 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 16:48:12,146 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 16:48:12,146 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 16:48:12,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 16:48:12,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:48:12 BoogieIcfgContainer [2020-12-09 16:48:12,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 16:48:12,167 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 16:48:12,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 16:48:12,167 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 16:48:12,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:48:11" (3/4) ... [2020-12-09 16:48:12,170 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 16:48:12,170 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 16:48:12,171 INFO L168 Benchmark]: Toolchain (without parser) took 1242.63 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 55.0 MB in the beginning and 55.5 MB in the end (delta: -510.8 kB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:12,172 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 96.5 MB. Free memory is still 71.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 16:48:12,172 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.93 ms. Allocated memory is still 96.5 MB. Free memory was 54.8 MB in the beginning and 69.9 MB in the end (delta: -15.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:12,173 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.33 ms. Allocated memory is still 96.5 MB. Free memory was 69.9 MB in the beginning and 67.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:12,173 INFO L168 Benchmark]: Boogie Preprocessor took 34.75 ms. Allocated memory is still 96.5 MB. Free memory was 67.5 MB in the beginning and 65.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:12,174 INFO L168 Benchmark]: RCFGBuilder took 582.97 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 65.4 MB in the beginning and 81.4 MB in the end (delta: -15.9 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:12,174 INFO L168 Benchmark]: TraceAbstraction took 332.95 ms. Allocated memory is still 117.4 MB. Free memory was 81.4 MB in the beginning and 55.5 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:12,175 INFO L168 Benchmark]: Witness Printer took 2.96 ms. Allocated memory is still 117.4 MB. Free memory is still 55.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 16:48:12,177 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 96.5 MB. Free memory is still 71.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 236.93 ms. Allocated memory is still 96.5 MB. Free memory was 54.8 MB in the beginning and 69.9 MB in the end (delta: -15.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.33 ms. Allocated memory is still 96.5 MB. Free memory was 69.9 MB in the beginning and 67.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.75 ms. Allocated memory is still 96.5 MB. Free memory was 67.5 MB in the beginning and 65.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 582.97 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 65.4 MB in the beginning and 81.4 MB in the end (delta: -15.9 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 332.95 ms. Allocated memory is still 117.4 MB. Free memory was 81.4 MB in the beginning and 55.5 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 2.96 ms. Allocated memory is still 117.4 MB. Free memory is still 55.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 177]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L171] double x = __VERIFIER_nondet_double(); [L172] double y = 0.0; [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L173] double res = fmod_double(x, y); [L18] return x != x; [L176] COND TRUE !isnan_double(res) [L177] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 56 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=39occurred 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, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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 16:48:13,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 16:48:13,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 16:48:13,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 16:48:13,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 16:48:13,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 16:48:13,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 16:48:13,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 16:48:13,756 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 16:48:13,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 16:48:13,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 16:48:13,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 16:48:13,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 16:48:13,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 16:48:13,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 16:48:13,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 16:48:13,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 16:48:13,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 16:48:13,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 16:48:13,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 16:48:13,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 16:48:13,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 16:48:13,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 16:48:13,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 16:48:13,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 16:48:13,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 16:48:13,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 16:48:13,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 16:48:13,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 16:48:13,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 16:48:13,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 16:48:13,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 16:48:13,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 16:48:13,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 16:48:13,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 16:48:13,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 16:48:13,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 16:48:13,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 16:48:13,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 16:48:13,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 16:48:13,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 16:48:13,790 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 16:48:13,814 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 16:48:13,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 16:48:13,815 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 16:48:13,815 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 16:48:13,815 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 16:48:13,815 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 16:48:13,815 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 16:48:13,816 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 16:48:13,816 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 16:48:13,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 16:48:13,817 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 16:48:13,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 16:48:13,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 16:48:13,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 16:48:13,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 16:48:13,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 16:48:13,818 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 16:48:13,818 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 16:48:13,818 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 16:48:13,818 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 16:48:13,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 16:48:13,818 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 16:48:13,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 16:48:13,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 16:48:13,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 16:48:13,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 16:48:13,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 16:48:13,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 16:48:13,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 16:48:13,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 16:48:13,820 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 16:48:13,820 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 16:48:13,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 16:48:13,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 16:48:13,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 16:48:13,821 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_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1ef2080ffd97f82ac51854e7d9813eba864fd0a [2020-12-09 16:48:14,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 16:48:14,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 16:48:14,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 16:48:14,089 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 16:48:14,090 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 16:48:14,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2020-12-09 16:48:14,131 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/data/367841884/2449873e8e4a47f594c1e3df478c377e/FLAG8346f6da5 [2020-12-09 16:48:14,558 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 16:48:14,559 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c [2020-12-09 16:48:14,564 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/data/367841884/2449873e8e4a47f594c1e3df478c377e/FLAG8346f6da5 [2020-12-09 16:48:14,574 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/data/367841884/2449873e8e4a47f594c1e3df478c377e [2020-12-09 16:48:14,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 16:48:14,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 16:48:14,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 16:48:14,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 16:48:14,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 16:48:14,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:48:14" (1/1) ... [2020-12-09 16:48:14,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d8eb5cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:14, skipping insertion in model container [2020-12-09 16:48:14,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:48:14" (1/1) ... [2020-12-09 16:48:14,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 16:48:14,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 16:48:14,743 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_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c[3883,3896] [2020-12-09 16:48:14,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:48:14,758 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 16:48:14,793 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_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/sv-benchmarks/c/float-newlib/double_req_bl_1121a.c[3883,3896] [2020-12-09 16:48:14,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 16:48:14,813 INFO L208 MainTranslator]: Completed translation [2020-12-09 16:48:14,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:14 WrapperNode [2020-12-09 16:48:14,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 16:48:14,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 16:48:14,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 16:48:14,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 16:48:14,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:14" (1/1) ... [2020-12-09 16:48:14,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:14" (1/1) ... [2020-12-09 16:48:14,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 16:48:14,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 16:48:14,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 16:48:14,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 16:48:14,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:14" (1/1) ... [2020-12-09 16:48:14,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:14" (1/1) ... [2020-12-09 16:48:14,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:14" (1/1) ... [2020-12-09 16:48:14,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:14" (1/1) ... [2020-12-09 16:48:14,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:14" (1/1) ... [2020-12-09 16:48:14,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:14" (1/1) ... [2020-12-09 16:48:14,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:14" (1/1) ... [2020-12-09 16:48:14,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 16:48:14,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 16:48:14,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 16:48:14,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 16:48:14,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/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 16:48:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-09 16:48:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-09 16:48:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 16:48:14,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 16:48:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-09 16:48:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 16:48:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 16:48:14,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 16:48:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 16:48:14,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 16:48:20,035 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 16:48:20,035 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-09 16:48:20,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:48:20 BoogieIcfgContainer [2020-12-09 16:48:20,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 16:48:20,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 16:48:20,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 16:48:20,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 16:48:20,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:48:14" (1/3) ... [2020-12-09 16:48:20,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6955bccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:48:20, skipping insertion in model container [2020-12-09 16:48:20,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:48:14" (2/3) ... [2020-12-09 16:48:20,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6955bccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:48:20, skipping insertion in model container [2020-12-09 16:48:20,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:48:20" (3/3) ... [2020-12-09 16:48:20,043 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121a.c [2020-12-09 16:48:20,054 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 16:48:20,057 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 16:48:20,065 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 16:48:20,081 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 16:48:20,081 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 16:48:20,081 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 16:48:20,081 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 16:48:20,081 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 16:48:20,084 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 16:48:20,084 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 16:48:20,084 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 16:48:20,093 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-12-09 16:48:20,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 16:48:20,097 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:48:20,097 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:48:20,098 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:48:20,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:48:20,101 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-12-09 16:48:20,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:48:20,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [595031425] [2020-12-09 16:48:20,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/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 16:48:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:48:20,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 16:48:20,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:48:20,954 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 16:48:20,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:48:20,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [595031425] [2020-12-09 16:48:20,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:48:20,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 16:48:20,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757224895] [2020-12-09 16:48:20,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 16:48:20,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:48:20,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 16:48:20,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 16:48:20,969 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2020-12-09 16:48:20,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:48:20,983 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2020-12-09 16:48:20,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 16:48:20,984 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-09 16:48:20,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:48:20,991 INFO L225 Difference]: With dead ends: 108 [2020-12-09 16:48:20,991 INFO L226 Difference]: Without dead ends: 52 [2020-12-09 16:48:20,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 16:48:21,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-09 16:48:21,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-09 16:48:21,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-09 16:48:21,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-12-09 16:48:21,017 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-12-09 16:48:21,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:48:21,017 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-12-09 16:48:21,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 16:48:21,017 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-12-09 16:48:21,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 16:48:21,018 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:48:21,018 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:48:21,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 16:48:21,219 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:48:21,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:48:21,220 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-12-09 16:48:21,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:48:21,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [294347822] [2020-12-09 16:48:21,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/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 16:48:22,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:48:22,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 16:48:22,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:48:25,298 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= |c_ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (_ +zero 11 53)))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) is different from true [2020-12-09 16:48:32,674 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (_ +zero 11 53)))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= (_ bv1 32) |c_ULTIMATE.start_isnan_double_#res|)) is different from false [2020-12-09 16:48:33,939 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 16:48:33,939 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:48:33,939 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [294347822] [2020-12-09 16:48:33,940 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:48:33,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 16:48:33,940 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826256920] [2020-12-09 16:48:33,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 16:48:33,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:48:33,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 16:48:33,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=14, Unknown=2, NotChecked=14, Total=42 [2020-12-09 16:48:33,943 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 7 states. [2020-12-09 16:48:39,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:48:39,650 INFO L93 Difference]: Finished difference Result 63 states and 87 transitions. [2020-12-09 16:48:39,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 16:48:39,676 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-12-09 16:48:39,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:48:39,677 INFO L225 Difference]: With dead ends: 63 [2020-12-09 16:48:39,677 INFO L226 Difference]: Without dead ends: 58 [2020-12-09 16:48:39,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=12, Invalid=14, Unknown=2, NotChecked=14, Total=42 [2020-12-09 16:48:39,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-12-09 16:48:39,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 52. [2020-12-09 16:48:39,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-09 16:48:39,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-12-09 16:48:39,684 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2020-12-09 16:48:39,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:48:39,685 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-12-09 16:48:39,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 16:48:39,685 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2020-12-09 16:48:39,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 16:48:39,685 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 16:48:39,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 16:48:39,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 16:48:39,887 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 16:48:39,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 16:48:39,890 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2020-12-09 16:48:39,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 16:48:39,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225818394] [2020-12-09 16:48:39,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/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 16:48:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 16:48:39,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 16:48:39,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 16:48:40,076 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 16:48:40,099 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-09 16:48:40,117 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:48:40,118 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-09 16:48:40,186 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-09 16:48:40,188 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 16:48:40,188 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:18 [2020-12-09 16:48:40,401 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 16:48:40,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 16:48:40,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225818394] [2020-12-09 16:48:40,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 16:48:40,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 16:48:40,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602633324] [2020-12-09 16:48:40,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 16:48:40,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 16:48:40,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 16:48:40,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 16:48:40,403 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 4 states. [2020-12-09 16:48:40,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 16:48:40,530 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2020-12-09 16:48:40,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 16:48:40,531 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-09 16:48:40,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 16:48:40,531 INFO L225 Difference]: With dead ends: 52 [2020-12-09 16:48:40,531 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 16:48:40,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 16:48:40,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 16:48:40,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 16:48:40,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 16:48:40,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 16:48:40,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-09 16:48:40,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 16:48:40,532 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 16:48:40,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 16:48:40,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 16:48:40,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 16:48:40,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 16:48:40,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 16:48:44,085 WARN L197 SmtUtils]: Spent 3.18 s on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 16:48:47,548 WARN L197 SmtUtils]: Spent 3.46 s on a formula simplification. DAG size of input: 12 DAG size of output: 3 [2020-12-09 16:48:47,574 INFO L262 CegarLoopResult]: For program point L35-2(lines 35 40) no Hoare annotation was computed. [2020-12-09 16:48:47,575 INFO L258 CegarLoopResult]: At program point L68-3(lines 68 69) the Hoare annotation is: false [2020-12-09 16:48:47,575 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 16:48:47,575 INFO L262 CegarLoopResult]: For program point L136-1(lines 136 141) no Hoare annotation was computed. [2020-12-09 16:48:47,575 INFO L262 CegarLoopResult]: For program point L103-1(lines 103 117) no Hoare annotation was computed. [2020-12-09 16:48:47,575 INFO L258 CegarLoopResult]: At program point L136-2(lines 136 141) the Hoare annotation is: false [2020-12-09 16:48:47,575 INFO L262 CegarLoopResult]: For program point L103-3(lines 103 117) no Hoare annotation was computed. [2020-12-09 16:48:47,575 INFO L262 CegarLoopResult]: For program point L120(lines 120 121) no Hoare annotation was computed. [2020-12-09 16:48:47,576 INFO L262 CegarLoopResult]: For program point L120-2(lines 25 163) no Hoare annotation was computed. [2020-12-09 16:48:47,576 INFO L262 CegarLoopResult]: For program point L71-2(lines 71 72) no Hoare annotation was computed. [2020-12-09 16:48:47,576 INFO L258 CegarLoopResult]: At program point L71-3(lines 71 72) the Hoare annotation is: false [2020-12-09 16:48:47,576 INFO L262 CegarLoopResult]: For program point L154(lines 154 159) no Hoare annotation was computed. [2020-12-09 16:48:47,576 INFO L262 CegarLoopResult]: For program point L154-1(lines 142 161) no Hoare annotation was computed. [2020-12-09 16:48:47,576 INFO L262 CegarLoopResult]: For program point L154-2(lines 154 159) no Hoare annotation was computed. [2020-12-09 16:48:47,577 INFO L262 CegarLoopResult]: For program point L55(lines 25 163) no Hoare annotation was computed. [2020-12-09 16:48:47,577 INFO L262 CegarLoopResult]: For program point L122-1(lines 25 163) no Hoare annotation was computed. [2020-12-09 16:48:47,577 INFO L262 CegarLoopResult]: For program point L56(lines 56 62) no Hoare annotation was computed. [2020-12-09 16:48:47,577 INFO L262 CegarLoopResult]: For program point L106(lines 106 107) no Hoare annotation was computed. [2020-12-09 16:48:47,577 INFO L262 CegarLoopResult]: For program point L106-2(lines 103 117) no Hoare annotation was computed. [2020-12-09 16:48:47,577 INFO L262 CegarLoopResult]: For program point L57-2(lines 57 58) no Hoare annotation was computed. [2020-12-09 16:48:47,577 INFO L258 CegarLoopResult]: At program point L57-3(lines 57 58) the Hoare annotation is: false [2020-12-09 16:48:47,577 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 16:48:47,578 INFO L258 CegarLoopResult]: At program point L108-1(lines 103 117) the Hoare annotation is: false [2020-12-09 16:48:47,578 INFO L262 CegarLoopResult]: For program point L93(lines 93 99) no Hoare annotation was computed. [2020-12-09 16:48:47,578 INFO L262 CegarLoopResult]: For program point L93-2(lines 89 100) no Hoare annotation was computed. [2020-12-09 16:48:47,578 INFO L262 CegarLoopResult]: For program point L60-2(lines 60 61) no Hoare annotation was computed. [2020-12-09 16:48:47,578 INFO L258 CegarLoopResult]: At program point L60-3(lines 60 61) the Hoare annotation is: false [2020-12-09 16:48:47,578 INFO L262 CegarLoopResult]: For program point L176(lines 176 179) no Hoare annotation was computed. [2020-12-09 16:48:47,578 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 16:48:47,579 INFO L262 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-12-09 16:48:47,579 INFO L262 CegarLoopResult]: For program point L144(lines 144 153) no Hoare annotation was computed. [2020-12-09 16:48:47,579 INFO L262 CegarLoopResult]: For program point L45(lines 45 47) no Hoare annotation was computed. [2020-12-09 16:48:47,579 INFO L262 CegarLoopResult]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2020-12-09 16:48:47,579 INFO L258 CegarLoopResult]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_double_~y (_ +zero 11 53))) [2020-12-09 16:48:47,579 INFO L262 CegarLoopResult]: For program point L112(lines 112 113) no Hoare annotation was computed. [2020-12-09 16:48:47,580 INFO L258 CegarLoopResult]: At program point L162(lines 25 163) the Hoare annotation is: (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= |ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (_ +zero 11 53)))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) [2020-12-09 16:48:47,580 INFO L258 CegarLoopResult]: At program point L129-2(lines 129 133) the Hoare annotation is: false [2020-12-09 16:48:47,580 INFO L262 CegarLoopResult]: For program point L129-3(lines 25 163) no Hoare annotation was computed. [2020-12-09 16:48:47,580 INFO L262 CegarLoopResult]: For program point L147(lines 147 153) no Hoare annotation was computed. [2020-12-09 16:48:47,580 INFO L262 CegarLoopResult]: For program point L81(lines 81 87) no Hoare annotation was computed. [2020-12-09 16:48:47,580 INFO L262 CegarLoopResult]: For program point L48(lines 48 53) no Hoare annotation was computed. [2020-12-09 16:48:47,580 INFO L262 CegarLoopResult]: For program point L81-2(lines 25 163) no Hoare annotation was computed. [2020-12-09 16:48:47,581 INFO L262 CegarLoopResult]: For program point L48-2(lines 25 163) no Hoare annotation was computed. [2020-12-09 16:48:47,581 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 16:48:47,581 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2020-12-09 16:48:47,581 INFO L265 CegarLoopResult]: At program point L181(lines 165 182) the Hoare annotation is: true [2020-12-09 16:48:47,581 INFO L262 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2020-12-09 16:48:47,581 INFO L262 CegarLoopResult]: For program point L66(lines 25 163) no Hoare annotation was computed. [2020-12-09 16:48:47,581 INFO L262 CegarLoopResult]: For program point L67(lines 67 73) no Hoare annotation was computed. [2020-12-09 16:48:47,581 INFO L262 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-12-09 16:48:47,582 INFO L258 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) [2020-12-09 16:48:47,582 INFO L262 CegarLoopResult]: For program point L134(lines 134 161) no Hoare annotation was computed. [2020-12-09 16:48:47,582 INFO L262 CegarLoopResult]: For program point L35(lines 35 40) no Hoare annotation was computed. [2020-12-09 16:48:47,582 INFO L262 CegarLoopResult]: For program point L35-1(lines 25 163) no Hoare annotation was computed. [2020-12-09 16:48:47,582 INFO L262 CegarLoopResult]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2020-12-09 16:48:47,592 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 16:48:47,594 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 16:48:47,595 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 16:48:47,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 16:48:47,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-09 16:48:47,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 16:48:47,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-09 16:48:47,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 16:48:47,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 16:48:47,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-09 16:48:47,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 16:48:47,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-09 16:48:47,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:48:47 BoogieIcfgContainer [2020-12-09 16:48:47,600 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 16:48:47,600 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 16:48:47,600 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 16:48:47,600 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 16:48:47,601 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:48:20" (3/4) ... [2020-12-09 16:48:47,603 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 16:48:47,613 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 16:48:47,613 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-09 16:48:47,613 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 16:48:47,613 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 16:48:47,640 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5a0339ed-d207-4b0d-a0dd-87bb7c67fd85/bin/utaipan/witness.graphml [2020-12-09 16:48:47,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 16:48:47,641 INFO L168 Benchmark]: Toolchain (without parser) took 33064.35 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 46.1 MB in the beginning and 44.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:47,642 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 65.0 MB. Free memory is still 47.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 16:48:47,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.10 ms. Allocated memory is still 65.0 MB. Free memory was 45.9 MB in the beginning and 45.0 MB in the end (delta: 837.3 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:47,642 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.49 ms. Allocated memory is still 65.0 MB. Free memory was 45.0 MB in the beginning and 42.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:47,643 INFO L168 Benchmark]: Boogie Preprocessor took 41.78 ms. Allocated memory is still 65.0 MB. Free memory was 42.9 MB in the beginning and 40.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:47,643 INFO L168 Benchmark]: RCFGBuilder took 5136.64 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 40.6 MB in the beginning and 43.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:47,644 INFO L168 Benchmark]: TraceAbstraction took 27561.78 ms. Allocated memory is still 81.8 MB. Free memory was 42.6 MB in the beginning and 47.1 MB in the end (delta: -4.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 16:48:47,644 INFO L168 Benchmark]: Witness Printer took 40.39 ms. Allocated memory is still 81.8 MB. Free memory was 47.1 MB in the beginning and 44.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 16:48:47,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 65.0 MB. Free memory is still 47.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 236.10 ms. Allocated memory is still 65.0 MB. Free memory was 45.9 MB in the beginning and 45.0 MB in the end (delta: 837.3 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.49 ms. Allocated memory is still 65.0 MB. Free memory was 45.0 MB in the beginning and 42.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.78 ms. Allocated memory is still 65.0 MB. Free memory was 42.9 MB in the beginning and 40.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5136.64 ms. Allocated memory was 65.0 MB in the beginning and 81.8 MB in the end (delta: 16.8 MB). Free memory was 40.6 MB in the beginning and 43.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27561.78 ms. Allocated memory is still 81.8 MB. Free memory was 42.6 MB in the beginning and 47.1 MB in the end (delta: -4.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 40.39 ms. Allocated memory is still 81.8 MB. Free memory was 47.1 MB in the beginning and 44.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 177]: 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: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant [2020-12-09 16:48:47,651 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 16:48:47,651 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && y == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant [2020-12-09 16:48:47,651 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 16:48:47,651 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 16:48:47,651 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-09 16:48:47,652 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 16:48:47,652 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-09 16:48:47,652 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 16:48:47,652 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 16:48:47,652 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2020-12-09 16:48:47,652 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 16:48:47,652 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_fmod_double_~x : C_DOUBLE :: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~Pluszero~LONGDOUBLE()))) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 161 SDtfs, 77 SDslu, 90 SDs, 0 SdLazy, 9 SolverSat, 1 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 31 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 6.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 5 QuantifiedInterpolants, 2009 SizeOfPredicates, 16 NumberOfNonLiveVariables, 199 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...