./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:00:51,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:00:51,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:00:51,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:00:51,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:00:51,994 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:00:51,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:00:52,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:00:52,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:00:52,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:00:52,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:00:52,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:00:52,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:00:52,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:00:52,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:00:52,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:00:52,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:00:52,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:00:52,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:00:52,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:00:52,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:00:52,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:00:52,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:00:52,058 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:00:52,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:00:52,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:00:52,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:00:52,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:00:52,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:00:52,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:00:52,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:00:52,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:00:52,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:00:52,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:00:52,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:00:52,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:00:52,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:00:52,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:00:52,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:00:52,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:00:52,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:00:52,089 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:00:52,145 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:00:52,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:00:52,148 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:00:52,148 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:00:52,148 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:00:52,149 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:00:52,149 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:00:52,149 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:00:52,149 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:00:52,150 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:00:52,159 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:00:52,159 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:00:52,160 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:00:52,160 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:00:52,160 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:00:52,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:00:52,162 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:00:52,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:00:52,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:00:52,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:00:52,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:00:52,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:00:52,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:00:52,164 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:00:52,164 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:00:52,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:00:52,164 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:00:52,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:00:52,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:00:52,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:00:52,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:00:52,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:00:52,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:00:52,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:00:52,169 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:00:52,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:00:52,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:00:52,170 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:00:52,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:00:52,170 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab [2021-10-29 05:00:52,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:00:52,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:00:52,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:00:52,521 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:00:52,522 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:00:52,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-10-29 05:00:52,616 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/data/bdaf1bd39/a1daecd29a744bfb85143241d3b3d611/FLAG8e0ed623a [2021-10-29 05:00:53,120 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:00:53,121 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-10-29 05:00:53,143 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/data/bdaf1bd39/a1daecd29a744bfb85143241d3b3d611/FLAG8e0ed623a [2021-10-29 05:00:53,485 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/data/bdaf1bd39/a1daecd29a744bfb85143241d3b3d611 [2021-10-29 05:00:53,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:00:53,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:00:53,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:00:53,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:00:53,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:00:53,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:00:53" (1/1) ... [2021-10-29 05:00:53,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6844e713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:53, skipping insertion in model container [2021-10-29 05:00:53,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:00:53" (1/1) ... [2021-10-29 05:00:53,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:00:53,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:00:53,830 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-10-29 05:00:53,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:00:53,843 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:00:53,922 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-10-29 05:00:53,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:00:53,940 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:00:53,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:53 WrapperNode [2021-10-29 05:00:53,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:00:53,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:00:53,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:00:53,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:00:53,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:53" (1/1) ... [2021-10-29 05:00:53,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:53" (1/1) ... [2021-10-29 05:00:54,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:00:54,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:00:54,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:00:54,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:00:54,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:53" (1/1) ... [2021-10-29 05:00:54,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:53" (1/1) ... [2021-10-29 05:00:54,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:53" (1/1) ... [2021-10-29 05:00:54,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:53" (1/1) ... [2021-10-29 05:00:54,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:53" (1/1) ... [2021-10-29 05:00:54,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:53" (1/1) ... [2021-10-29 05:00:54,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:53" (1/1) ... [2021-10-29 05:00:54,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:00:54,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:00:54,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:00:54,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:00:54,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:53" (1/1) ... [2021-10-29 05:00:54,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:00:54,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:00:54,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:00:54,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:00:54,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:00:54,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:00:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:00:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-29 05:00:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-29 05:00:54,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:00:54,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:00:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 05:00:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-29 05:00:54,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:00:55,183 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:00:55,183 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-29 05:00:55,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:00:55 BoogieIcfgContainer [2021-10-29 05:00:55,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:00:55,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:00:55,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:00:55,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:00:55,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:00:53" (1/3) ... [2021-10-29 05:00:55,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b42e6a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:00:55, skipping insertion in model container [2021-10-29 05:00:55,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:53" (2/3) ... [2021-10-29 05:00:55,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b42e6a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:00:55, skipping insertion in model container [2021-10-29 05:00:55,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:00:55" (3/3) ... [2021-10-29 05:00:55,201 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2021-10-29 05:00:55,207 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:00:55,207 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:00:55,261 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:00:55,269 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:00:55,269 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:00:55,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 38 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:00:55,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 05:00:55,294 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:55,295 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:00:55,295 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:00:55,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:55,302 INFO L85 PathProgramCache]: Analyzing trace with hash -159335407, now seen corresponding path program 1 times [2021-10-29 05:00:55,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:00:55,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041461053] [2021-10-29 05:00:55,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:55,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:00:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:55,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:00:55,574 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:00:55,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041461053] [2021-10-29 05:00:55,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041461053] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:55,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:55,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:00:55,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175098264] [2021-10-29 05:00:55,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:00:55,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:00:55,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:00:55,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:00:55,615 INFO L87 Difference]: Start difference. First operand has 39 states, 37 states have (on average 1.7837837837837838) internal successors, (66), 38 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:00:55,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:55,650 INFO L93 Difference]: Finished difference Result 77 states and 131 transitions. [2021-10-29 05:00:55,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:00:55,652 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-29 05:00:55,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:55,666 INFO L225 Difference]: With dead ends: 77 [2021-10-29 05:00:55,666 INFO L226 Difference]: Without dead ends: 37 [2021-10-29 05:00:55,674 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:00:55,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-29 05:00:55,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-29 05:00:55,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.5) internal successors, (54), 36 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:00:55,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2021-10-29 05:00:55,726 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 8 [2021-10-29 05:00:55,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:55,727 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2021-10-29 05:00:55,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:00:55,728 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2021-10-29 05:00:55,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:00:55,728 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:55,729 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:00:55,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:00:55,730 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:00:55,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:55,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1510972428, now seen corresponding path program 1 times [2021-10-29 05:00:55,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:00:55,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936253594] [2021-10-29 05:00:55,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:55,737 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:00:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:00:55,839 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:00:55,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:00:55,964 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:00:55,965 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:00:55,967 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:00:55,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:00:55,974 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 05:00:55,978 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:00:56,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:00:56 BoogieIcfgContainer [2021-10-29 05:00:56,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:00:56,029 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:00:56,029 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:00:56,029 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:00:56,030 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:00:55" (3/4) ... [2021-10-29 05:00:56,037 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:00:56,037 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:00:56,040 INFO L168 Benchmark]: Toolchain (without parser) took 2545.60 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 72.5 MB in the beginning and 91.1 MB in the end (delta: -18.6 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:56,041 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 111.1 MB. Free memory is still 89.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:00:56,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.19 ms. Allocated memory is still 111.1 MB. Free memory was 72.4 MB in the beginning and 81.6 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:56,047 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.10 ms. Allocated memory is still 111.1 MB. Free memory was 81.6 MB in the beginning and 79.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:56,048 INFO L168 Benchmark]: Boogie Preprocessor took 81.91 ms. Allocated memory is still 111.1 MB. Free memory was 79.3 MB in the beginning and 77.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:56,049 INFO L168 Benchmark]: RCFGBuilder took 1048.05 ms. Allocated memory is still 111.1 MB. Free memory was 77.2 MB in the beginning and 50.0 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:56,049 INFO L168 Benchmark]: TraceAbstraction took 839.05 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 49.4 MB in the beginning and 91.9 MB in the end (delta: -42.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:00:56,050 INFO L168 Benchmark]: Witness Printer took 8.70 ms. Allocated memory is still 134.2 MB. Free memory was 91.9 MB in the beginning and 91.1 MB in the end (delta: 776.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:00:56,054 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 111.1 MB. Free memory is still 89.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 443.19 ms. Allocated memory is still 111.1 MB. Free memory was 72.4 MB in the beginning and 81.6 MB in the end (delta: -9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.10 ms. Allocated memory is still 111.1 MB. Free memory was 81.6 MB in the beginning and 79.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.91 ms. Allocated memory is still 111.1 MB. Free memory was 79.3 MB in the beginning and 77.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1048.05 ms. Allocated memory is still 111.1 MB. Free memory was 77.2 MB in the beginning and 50.0 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 839.05 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 49.4 MB in the beginning and 91.9 MB in the end (delta: -42.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 8.70 ms. Allocated memory is still 134.2 MB. Free memory was 91.9 MB in the beginning and 91.1 MB in the end (delta: 776.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 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, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-29 05:00:56,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:00:59,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:00:59,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:00:59,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:00:59,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:00:59,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:00:59,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:00:59,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:00:59,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:00:59,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:00:59,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:00:59,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:00:59,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:00:59,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:00:59,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:00:59,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:00:59,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:00:59,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:00:59,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:00:59,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:00:59,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:00:59,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:00:59,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:00:59,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:00:59,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:00:59,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:00:59,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:00:59,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:00:59,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:00:59,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:00:59,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:00:59,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:00:59,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:00:59,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:00:59,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:00:59,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:00:59,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:00:59,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:00:59,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:00:59,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:00:59,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:00:59,171 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:00:59,237 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:00:59,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:00:59,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:00:59,239 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:00:59,239 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:00:59,239 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:00:59,240 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:00:59,240 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:00:59,240 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:00:59,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:00:59,242 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:00:59,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:00:59,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:00:59,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:00:59,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:00:59,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:00:59,247 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:00:59,247 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:00:59,248 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:00:59,248 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:00:59,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:00:59,248 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:00:59,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:00:59,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:00:59,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:00:59,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:00:59,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:00:59,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:00:59,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:00:59,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:00:59,252 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:00:59,252 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:00:59,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:00:59,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:00:59,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:00:59,254 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eabf73fda8ad66cc712b5e2aa068d76d83b4a035cc33c195eef372e98b57afab [2021-10-29 05:00:59,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:00:59,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:00:59,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:00:59,799 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:00:59,800 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:00:59,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-10-29 05:00:59,895 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/data/7cb149dd2/4f2f5939bbfb4419bf621a6284e43c4b/FLAGb13ae0e59 [2021-10-29 05:01:00,537 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:01:00,538 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2021-10-29 05:01:00,550 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/data/7cb149dd2/4f2f5939bbfb4419bf621a6284e43c4b/FLAGb13ae0e59 [2021-10-29 05:01:00,825 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/data/7cb149dd2/4f2f5939bbfb4419bf621a6284e43c4b [2021-10-29 05:01:00,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:01:00,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:01:00,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:01:00,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:01:00,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:01:00,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:01:00" (1/1) ... [2021-10-29 05:01:00,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6118937c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:00, skipping insertion in model container [2021-10-29 05:01:00,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:01:00" (1/1) ... [2021-10-29 05:01:00,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:01:00,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:01:01,173 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-10-29 05:01:01,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:01:01,190 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:01:01,321 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c[3884,3897] [2021-10-29 05:01:01,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:01:01,363 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:01:01,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01 WrapperNode [2021-10-29 05:01:01,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:01:01,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:01:01,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:01:01,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:01:01,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:01:01,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:01:01,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:01:01,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:01:01,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:01:01,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:01:01,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:01:01,579 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:01:01,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (1/1) ... [2021-10-29 05:01:01,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:01:01,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:01:01,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:01:01,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:01:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-29 05:01:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-29 05:01:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:01:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:01:01,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-29 05:01:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 05:01:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:01:01,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:01:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 05:01:01,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:01:05,353 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:01:05,353 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-29 05:01:05,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:01:05 BoogieIcfgContainer [2021-10-29 05:01:05,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:01:05,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:01:05,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:01:05,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:01:05,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:01:00" (1/3) ... [2021-10-29 05:01:05,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580726e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:01:05, skipping insertion in model container [2021-10-29 05:01:05,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:01:01" (2/3) ... [2021-10-29 05:01:05,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580726e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:01:05, skipping insertion in model container [2021-10-29 05:01:05,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:01:05" (3/3) ... [2021-10-29 05:01:05,366 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2021-10-29 05:01:05,373 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:01:05,373 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:01:05,463 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:01:05,477 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:01:05,478 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:01:05,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:05,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:01:05,526 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:05,527 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:01:05,528 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:01:05,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:05,534 INFO L85 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2021-10-29 05:01:05,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:05,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580133971] [2021-10-29 05:01:05,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:05,557 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:05,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:05,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:05,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:01:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:07,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:01:07,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:07,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:07,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:07,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:07,280 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:07,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580133971] [2021-10-29 05:01:07,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580133971] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:01:07,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:01:07,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:01:07,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855744691] [2021-10-29 05:01:07,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:01:07,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:07,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:01:07,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:01:07,310 INFO L87 Difference]: Start difference. First operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:07,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:07,347 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2021-10-29 05:01:07,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:01:07,349 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 05:01:07,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:07,362 INFO L225 Difference]: With dead ends: 108 [2021-10-29 05:01:07,362 INFO L226 Difference]: Without dead ends: 52 [2021-10-29 05:01:07,365 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:01:07,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-29 05:01:07,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-29 05:01:07,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 51 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:07,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2021-10-29 05:01:07,449 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2021-10-29 05:01:07,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:07,449 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2021-10-29 05:01:07,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:07,450 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2021-10-29 05:01:07,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 05:01:07,451 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:07,451 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:01:07,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:07,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:01:07,668 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:01:07,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:07,668 INFO L85 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2021-10-29 05:01:07,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:07,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206192922] [2021-10-29 05:01:07,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:07,670 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:07,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:07,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:07,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:01:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:08,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-29 05:01:08,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:29,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:29,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:47,468 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2021-10-29 05:02:15,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:02:15,187 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:02:15,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206192922] [2021-10-29 05:02:15,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206192922] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:02:15,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:02:15,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-29 05:02:15,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164852951] [2021-10-29 05:02:15,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 05:02:15,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:02:15,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 05:02:15,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=4, NotChecked=16, Total=110 [2021-10-29 05:02:15,191 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:02:20,124 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_ULTIMATE.start_fmod_double_~y (fp.neg (_ +zero 11 53))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-29 05:02:34,120 WARN L207 SmtUtils]: Spent 6.16 s on a formula simplification that was a NOOP. DAG size: 13 [2021-10-29 05:02:44,966 WARN L207 SmtUtils]: Spent 6.98 s on a formula simplification that was a NOOP. DAG size: 15 [2021-10-29 05:02:56,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:02:56,207 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2021-10-29 05:02:56,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:02:56,245 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 05:02:56,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:02:56,247 INFO L225 Difference]: With dead ends: 57 [2021-10-29 05:02:56,247 INFO L226 Difference]: Without dead ends: 52 [2021-10-29 05:02:56,248 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 53.5s TimeCoverageRelationStatistics Valid=40, Invalid=95, Unknown=5, NotChecked=42, Total=182 [2021-10-29 05:02:56,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-29 05:02:56,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-29 05:02:56,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 51 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:02:56,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2021-10-29 05:02:56,257 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2021-10-29 05:02:56,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:02:56,257 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2021-10-29 05:02:56,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:02:56,258 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2021-10-29 05:02:56,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 05:02:56,258 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:02:56,258 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:02:56,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:02:56,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:02:56,459 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:02:56,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:02:56,460 INFO L85 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2021-10-29 05:02:56,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:02:56,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1010575435] [2021-10-29 05:02:56,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:02:56,461 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:02:56,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:02:56,463 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:02:56,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:02:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:02:56,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 05:02:56,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:02:56,879 INFO L388 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 30 treesize of output 28 [2021-10-29 05:02:57,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:02:57,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:02:58,058 INFO L388 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 31 treesize of output 29 [2021-10-29 05:02:58,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:02:58,492 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:02:58,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1010575435] [2021-10-29 05:02:58,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1010575435] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:02:58,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:02:58,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 05:02:58,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950797741] [2021-10-29 05:02:58,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:02:58,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:02:58,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:02:58,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:02:58,496 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:02:58,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:02:58,904 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2021-10-29 05:02:58,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:02:58,905 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-29 05:02:58,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:02:58,905 INFO L225 Difference]: With dead ends: 52 [2021-10-29 05:02:58,906 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:02:58,907 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:02:58,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:02:58,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:02:58,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:02:58,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:02:58,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-10-29 05:02:58,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:02:58,909 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:02:58,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:02:58,910 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:02:58,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:02:58,912 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:02:58,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:02:59,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:02:59,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 05:02:59,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:02:59,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:02:59,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:02:59,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:02:59,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:02:59,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:02:59,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:02:59,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:02:59,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:02:59,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:02:59,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:03:12,484 INFO L857 garLoopResultBuilder]: For program point L35-2(lines 35 40) no Hoare annotation was computed. [2021-10-29 05:03:12,485 INFO L853 garLoopResultBuilder]: At program point L68-3(lines 68 69) the Hoare annotation is: false [2021-10-29 05:03:12,485 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 05:03:12,485 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 136 141) no Hoare annotation was computed. [2021-10-29 05:03:12,486 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 103 117) no Hoare annotation was computed. [2021-10-29 05:03:12,486 INFO L853 garLoopResultBuilder]: At program point L136-2(lines 136 141) the Hoare annotation is: false [2021-10-29 05:03:12,486 INFO L857 garLoopResultBuilder]: For program point L103-3(lines 103 117) no Hoare annotation was computed. [2021-10-29 05:03:12,486 INFO L857 garLoopResultBuilder]: For program point L120(lines 120 121) no Hoare annotation was computed. [2021-10-29 05:03:12,486 INFO L857 garLoopResultBuilder]: For program point L120-2(lines 25 163) no Hoare annotation was computed. [2021-10-29 05:03:12,487 INFO L857 garLoopResultBuilder]: For program point L71-2(lines 71 72) no Hoare annotation was computed. [2021-10-29 05:03:12,487 INFO L853 garLoopResultBuilder]: At program point L71-3(lines 71 72) the Hoare annotation is: false [2021-10-29 05:03:12,487 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 159) no Hoare annotation was computed. [2021-10-29 05:03:12,487 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 142 161) no Hoare annotation was computed. [2021-10-29 05:03:12,488 INFO L857 garLoopResultBuilder]: For program point L154-2(lines 154 159) no Hoare annotation was computed. [2021-10-29 05:03:12,488 INFO L857 garLoopResultBuilder]: For program point L55(lines 25 163) no Hoare annotation was computed. [2021-10-29 05:03:12,488 INFO L857 garLoopResultBuilder]: For program point L122-1(lines 25 163) no Hoare annotation was computed. [2021-10-29 05:03:12,488 INFO L857 garLoopResultBuilder]: For program point L56(lines 56 62) no Hoare annotation was computed. [2021-10-29 05:03:12,488 INFO L857 garLoopResultBuilder]: For program point L106(lines 106 107) no Hoare annotation was computed. [2021-10-29 05:03:12,488 INFO L857 garLoopResultBuilder]: For program point L106-2(lines 103 117) no Hoare annotation was computed. [2021-10-29 05:03:12,489 INFO L857 garLoopResultBuilder]: For program point L57-2(lines 57 58) no Hoare annotation was computed. [2021-10-29 05:03:12,489 INFO L853 garLoopResultBuilder]: At program point L57-3(lines 57 58) the Hoare annotation is: false [2021-10-29 05:03:12,489 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 05:03:12,489 INFO L853 garLoopResultBuilder]: At program point L108-1(lines 103 117) the Hoare annotation is: false [2021-10-29 05:03:12,489 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-29 05:03:12,489 INFO L857 garLoopResultBuilder]: For program point L93-2(lines 89 100) no Hoare annotation was computed. [2021-10-29 05:03:12,490 INFO L857 garLoopResultBuilder]: For program point L60-2(lines 60 61) no Hoare annotation was computed. [2021-10-29 05:03:12,490 INFO L853 garLoopResultBuilder]: At program point L60-3(lines 60 61) the Hoare annotation is: false [2021-10-29 05:03:12,490 INFO L857 garLoopResultBuilder]: For program point L176(lines 176 179) no Hoare annotation was computed. [2021-10-29 05:03:12,490 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 05:03:12,491 INFO L857 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-10-29 05:03:12,491 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 153) no Hoare annotation was computed. [2021-10-29 05:03:12,491 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 47) no Hoare annotation was computed. [2021-10-29 05:03:12,492 INFO L857 garLoopResultBuilder]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2021-10-29 05:03:12,492 INFO L853 garLoopResultBuilder]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (= ULTIMATE.start_fmod_double_~y (fp.neg (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-29 05:03:12,492 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 113) no Hoare annotation was computed. [2021-10-29 05:03:12,493 INFO L853 garLoopResultBuilder]: 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 (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) [2021-10-29 05:03:12,493 INFO L853 garLoopResultBuilder]: At program point L129-2(lines 129 133) the Hoare annotation is: false [2021-10-29 05:03:12,493 INFO L857 garLoopResultBuilder]: For program point L129-3(lines 25 163) no Hoare annotation was computed. [2021-10-29 05:03:12,493 INFO L857 garLoopResultBuilder]: For program point L147(lines 147 153) no Hoare annotation was computed. [2021-10-29 05:03:12,493 INFO L857 garLoopResultBuilder]: For program point L81(lines 81 87) no Hoare annotation was computed. [2021-10-29 05:03:12,493 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 53) no Hoare annotation was computed. [2021-10-29 05:03:12,494 INFO L857 garLoopResultBuilder]: For program point L81-2(lines 25 163) no Hoare annotation was computed. [2021-10-29 05:03:12,494 INFO L857 garLoopResultBuilder]: For program point L48-2(lines 25 163) no Hoare annotation was computed. [2021-10-29 05:03:12,494 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 05:03:12,494 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-10-29 05:03:12,495 INFO L860 garLoopResultBuilder]: At program point L181(lines 165 182) the Hoare annotation is: true [2021-10-29 05:03:12,495 INFO L857 garLoopResultBuilder]: For program point L49(lines 49 50) no Hoare annotation was computed. [2021-10-29 05:03:12,495 INFO L857 garLoopResultBuilder]: For program point L66(lines 25 163) no Hoare annotation was computed. [2021-10-29 05:03:12,495 INFO L857 garLoopResultBuilder]: For program point L67(lines 67 73) no Hoare annotation was computed. [2021-10-29 05:03:12,496 INFO L857 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2021-10-29 05:03:12,496 INFO L853 garLoopResultBuilder]: At program point L18(line 18) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= |ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0))))) [2021-10-29 05:03:12,496 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 161) no Hoare annotation was computed. [2021-10-29 05:03:12,497 INFO L857 garLoopResultBuilder]: For program point L35(lines 35 40) no Hoare annotation was computed. [2021-10-29 05:03:12,497 INFO L857 garLoopResultBuilder]: For program point L35-1(lines 25 163) no Hoare annotation was computed. [2021-10-29 05:03:12,497 INFO L857 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2021-10-29 05:03:12,501 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-29 05:03:12,503 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:03:12,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,515 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-29 05:03:12,515 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,515 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-29 05:03:12,520 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,520 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-29 05:03:12,521 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,521 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-29 05:03:12,522 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,523 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,523 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-29 05:03:12,523 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-29 05:03:12,524 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,524 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-29 05:03:12,524 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-29 05:03:12,525 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,526 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:03:12 BoogieIcfgContainer [2021-10-29 05:03:12,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:03:12,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:03:12,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:03:12,528 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:03:12,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:01:05" (3/4) ... [2021-10-29 05:03:12,532 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:03:12,548 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-29 05:03:12,549 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-29 05:03:12,549 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:03:12,549 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:03:12,593 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:03:12,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:03:12,595 INFO L168 Benchmark]: Toolchain (without parser) took 131763.62 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 36.3 MB in the beginning and 37.3 MB in the end (delta: -991.3 kB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:12,596 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 58.7 MB. Free memory is still 39.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:03:12,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 530.31 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 36.1 MB in the beginning and 58.1 MB in the end (delta: -22.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:12,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.03 ms. Allocated memory is still 77.6 MB. Free memory was 57.9 MB in the beginning and 55.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:12,598 INFO L168 Benchmark]: Boogie Preprocessor took 118.98 ms. Allocated memory is still 77.6 MB. Free memory was 55.7 MB in the beginning and 53.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:12,599 INFO L168 Benchmark]: RCFGBuilder took 3777.36 ms. Allocated memory is still 77.6 MB. Free memory was 53.6 MB in the beginning and 53.7 MB in the end (delta: -91.4 kB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:12,600 INFO L168 Benchmark]: TraceAbstraction took 127168.16 ms. Allocated memory is still 77.6 MB. Free memory was 53.4 MB in the beginning and 40.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:12,600 INFO L168 Benchmark]: Witness Printer took 66.73 ms. Allocated memory is still 77.6 MB. Free memory was 40.3 MB in the beginning and 37.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:12,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 58.7 MB. Free memory is still 39.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 530.31 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 36.1 MB in the beginning and 58.1 MB in the end (delta: -22.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.03 ms. Allocated memory is still 77.6 MB. Free memory was 57.9 MB in the beginning and 55.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 118.98 ms. Allocated memory is still 77.6 MB. Free memory was 55.7 MB in the beginning and 53.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3777.36 ms. Allocated memory is still 77.6 MB. Free memory was 53.6 MB in the beginning and 53.7 MB in the end (delta: -91.4 kB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 127168.16 ms. Allocated memory is still 77.6 MB. Free memory was 53.4 MB in the beginning and 40.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Witness Printer took 66.73 ms. Allocated memory is still 77.6 MB. Free memory was 40.3 MB in the beginning and 37.3 MB in the end (delta: 3.0 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 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] - 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] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 177]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 127.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 41.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 160 SDtfs, 6 SDslu, 474 SDs, 0 SdLazy, 34 SolverSat, 2 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 15.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 54.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 50 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 13.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 68.4s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 13 QuantifiedInterpolants, 413 SizeOfPredicates, 18 NumberOfNonLiveVariables, 199 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant [2021-10-29 05:03:12,618 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,619 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,619 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-29 05:03:12,619 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,619 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-29 05:03:12,620 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,620 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,621 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-29 05:03:12,621 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,621 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] Derived loop invariant: 1bv32 == \result && (\exists ULTIMATE.start_fmod_double_~x : C_DOUBLE :: \result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant [2021-10-29 05:03:12,623 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,623 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-29 05:03:12,624 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-29 05:03:12,625 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,625 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,625 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_double_~x,QUANTIFIED] [2021-10-29 05:03:12,625 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,625 WARN L418 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, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())), ~fp.mul~DOUBLE(~roundNearestTiesToEven, ULTIMATE.start_fmod_double_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant [2021-10-29 05:03:12,626 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 05:03:12,627 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2021-10-29 05:03:12,851 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-29 05:03:12,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55dd8f15-8877-48a6-b063-8982de55465c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...