./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P --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 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:49:08,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:49:08,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:49:08,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:49:08,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:49:08,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:49:08,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:49:08,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:49:08,925 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:49:08,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:49:08,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:49:08,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:49:08,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:49:08,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:49:08,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:49:08,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:49:08,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:49:08,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:49:08,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:49:08,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:49:08,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:49:08,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:49:08,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:49:08,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:49:08,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:49:08,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:49:08,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:49:09,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:49:09,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:49:09,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:49:09,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:49:09,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:49:09,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:49:09,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:49:09,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:49:09,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:49:09,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:49:09,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:49:09,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:49:09,014 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:49:09,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:49:09,015 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-20 23:49:09,072 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:49:09,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:49:09,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:49:09,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:49:09,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:49:09,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:49:09,078 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:49:09,078 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:49:09,078 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:49:09,079 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:49:09,080 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:49:09,080 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:49:09,080 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:49:09,080 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:49:09,081 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:49:09,081 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:49:09,081 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:49:09,081 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:49:09,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:49:09,082 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:49:09,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:49:09,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:49:09,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:49:09,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:49:09,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:49:09,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:49:09,086 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:49:09,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:49:09,086 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:49:09,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:49:09,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:49:09,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:49:09,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:49:09,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:49:09,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:49:09,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:49:09,088 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:49:09,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:49:09,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:49:09,089 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:49:09,089 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:49:09,089 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_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc [2021-11-20 23:49:09,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:49:09,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:49:09,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:49:09,544 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:49:09,546 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:49:09,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2021-11-20 23:49:09,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/data/c5d014fec/89285bd61d2a41e486b772120a9b466c/FLAG647382671 [2021-11-20 23:49:10,215 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:49:10,217 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2021-11-20 23:49:10,234 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/data/c5d014fec/89285bd61d2a41e486b772120a9b466c/FLAG647382671 [2021-11-20 23:49:10,524 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/data/c5d014fec/89285bd61d2a41e486b772120a9b466c [2021-11-20 23:49:10,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:49:10,529 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:49:10,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:49:10,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:49:10,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:49:10,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:49:10" (1/1) ... [2021-11-20 23:49:10,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f6cdc11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10, skipping insertion in model container [2021-11-20 23:49:10,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:49:10" (1/1) ... [2021-11-20 23:49:10,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:49:10,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:49:10,867 WARN L230 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_b1e120b4-fc47-4edf-bdde-129fe9c541a5/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2021-11-20 23:49:10,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:49:10,882 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:49:10,942 WARN L230 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_b1e120b4-fc47-4edf-bdde-129fe9c541a5/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2021-11-20 23:49:10,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:49:10,961 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:49:10,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10 WrapperNode [2021-11-20 23:49:10,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:49:10,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:49:10,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:49:10,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:49:10,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2021-11-20 23:49:11,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2021-11-20 23:49:11,030 INFO L137 Inliner]: procedures = 18, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 169 [2021-11-20 23:49:11,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:49:11,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:49:11,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:49:11,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:49:11,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2021-11-20 23:49:11,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2021-11-20 23:49:11,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2021-11-20 23:49:11,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2021-11-20 23:49:11,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2021-11-20 23:49:11,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2021-11-20 23:49:11,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2021-11-20 23:49:11,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:49:11,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:49:11,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:49:11,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:49:11,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (1/1) ... [2021-11-20 23:49:11,086 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:49:11,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:49:11,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:49:11,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:49:11,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:49:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:49:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:49:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:49:11,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-20 23:49:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-20 23:49:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:49:11,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:49:11,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:49:11,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-20 23:49:11,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:49:11,265 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:49:11,267 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:49:11,610 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:49:11,689 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:49:11,690 INFO L301 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-20 23:49:11,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:49:11 BoogieIcfgContainer [2021-11-20 23:49:11,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:49:11,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:49:11,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:49:11,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:49:11,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:49:10" (1/3) ... [2021-11-20 23:49:11,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55375790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:49:11, skipping insertion in model container [2021-11-20 23:49:11,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:10" (2/3) ... [2021-11-20 23:49:11,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55375790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:49:11, skipping insertion in model container [2021-11-20 23:49:11,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:49:11" (3/3) ... [2021-11-20 23:49:11,710 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2021-11-20 23:49:11,717 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:49:11,718 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:49:11,801 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:49:11,816 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 [2021-11-20 23:49:11,816 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:49:11,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.75) internal successors, (56), 33 states have internal predecessors, (56), 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) [2021-11-20 23:49:11,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 23:49:11,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:49:11,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:49:11,858 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:49:11,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:49:11,865 INFO L85 PathProgramCache]: Analyzing trace with hash -2021166095, now seen corresponding path program 1 times [2021-11-20 23:49:11,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:49:11,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879312739] [2021-11-20 23:49:11,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:49:11,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:49:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:49:12,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:49:12,077 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:49:12,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879312739] [2021-11-20 23:49:12,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879312739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:49:12,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:49:12,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:49:12,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663857407] [2021-11-20 23:49:12,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:49:12,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 23:49:12,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:49:12,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 23:49:12,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:49:12,138 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.75) internal successors, (56), 33 states have internal predecessors, (56), 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) [2021-11-20 23:49:12,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:49:12,205 INFO L93 Difference]: Finished difference Result 67 states and 111 transitions. [2021-11-20 23:49:12,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 23:49:12,208 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 [2021-11-20 23:49:12,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:49:12,219 INFO L225 Difference]: With dead ends: 67 [2021-11-20 23:49:12,219 INFO L226 Difference]: Without dead ends: 32 [2021-11-20 23:49:12,224 INFO L932 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 [2021-11-20 23:49:12,230 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:49:12,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:49:12,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-20 23:49:12,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-11-20 23:49:12,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 31 states have internal predecessors, (44), 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) [2021-11-20 23:49:12,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2021-11-20 23:49:12,280 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 8 [2021-11-20 23:49:12,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:49:12,282 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-11-20 23:49:12,282 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) [2021-11-20 23:49:12,282 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2021-11-20 23:49:12,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 23:49:12,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:49:12,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:49:12,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:49:12,286 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:49:12,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:49:12,290 INFO L85 PathProgramCache]: Analyzing trace with hash 342564116, now seen corresponding path program 1 times [2021-11-20 23:49:12,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:49:12,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507665811] [2021-11-20 23:49:12,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:49:12,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:49:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:49:12,424 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 23:49:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:49:12,528 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-20 23:49:12,529 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 23:49:12,531 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 23:49:12,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:49:12,537 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-20 23:49:12,540 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 23:49:12,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:49:12 BoogieIcfgContainer [2021-11-20 23:49:12,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 23:49:12,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 23:49:12,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 23:49:12,569 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 23:49:12,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:49:11" (3/4) ... [2021-11-20 23:49:12,573 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 23:49:12,573 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 23:49:12,574 INFO L158 Benchmark]: Toolchain (without parser) took 2045.17ms. Allocated memory is still 123.7MB. Free memory was 88.8MB in the beginning and 50.2MB in the end (delta: 38.7MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2021-11-20 23:49:12,575 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 81.8MB. Free memory was 52.2MB in the beginning and 52.2MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:49:12,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.15ms. Allocated memory is still 123.7MB. Free memory was 88.6MB in the beginning and 98.4MB in the end (delta: -9.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 23:49:12,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.25ms. Allocated memory is still 123.7MB. Free memory was 98.4MB in the beginning and 96.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:49:12,577 INFO L158 Benchmark]: Boogie Preprocessor took 42.35ms. Allocated memory is still 123.7MB. Free memory was 96.3MB in the beginning and 94.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:49:12,578 INFO L158 Benchmark]: RCFGBuilder took 621.61ms. Allocated memory is still 123.7MB. Free memory was 94.2MB in the beginning and 78.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-20 23:49:12,579 INFO L158 Benchmark]: TraceAbstraction took 868.96ms. Allocated memory is still 123.7MB. Free memory was 78.1MB in the beginning and 50.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-20 23:49:12,580 INFO L158 Benchmark]: Witness Printer took 4.73ms. Allocated memory is still 123.7MB. Free memory was 50.8MB in the beginning and 50.2MB in the end (delta: 611.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:49:12,584 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 81.8MB. Free memory was 52.2MB in the beginning and 52.2MB in the end (delta: 28.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.15ms. Allocated memory is still 123.7MB. Free memory was 88.6MB in the beginning and 98.4MB in the end (delta: -9.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.25ms. Allocated memory is still 123.7MB. Free memory was 98.4MB in the beginning and 96.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.35ms. Allocated memory is still 123.7MB. Free memory was 96.3MB in the beginning and 94.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 621.61ms. Allocated memory is still 123.7MB. Free memory was 94.2MB in the beginning and 78.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 868.96ms. Allocated memory is still 123.7MB. Free memory was 78.1MB in the beginning and 50.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.73ms. Allocated memory is still 123.7MB. Free memory was 50.8MB in the beginning and 50.2MB in the end (delta: 611.9kB). There was no memory consumed. Max. memory is 16.1GB. * 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: 125]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseXor at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L119] float x = -1.0f / 0.0f; [L120] float y = __VERIFIER_nondet_float(); [L121] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=4294967298, \old(y)=4294967296, one_fmod=1, x=4294967298, y=4294967296, Zero_fmod={4:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [\old(x)=4294967298, \old(y)=4294967296, one_fmod=1, sx=-1, x=4294967298, y=4294967296, Zero_fmod={4:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [\old(x)=4294967298, \old(y)=4294967296, hx=2139095040, hy=0, one_fmod=1, sx=-1, x=4294967298, y=4294967296, Zero_fmod={4:0}] [L121] RET, EXPR fmod_float(x, y) [L121] float res = fmod_float(x, y); [L124] CALL, EXPR isnan_float(res) [L110] return x != x; [L124] RET, EXPR isnan_float(res) [L124] COND TRUE !isnan_float(res) [L125] reach_error() VAL [one_fmod=1, res=4294967297, x=4294967298, y=4294967296, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 36 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, 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=34occurred 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, 0.1s 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 [2021-11-20 23:49:12,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P --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 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:49:15,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:49:15,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:49:15,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:49:15,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:49:15,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:49:15,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:49:15,529 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:49:15,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:49:15,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:49:15,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:49:15,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:49:15,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:49:15,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:49:15,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:49:15,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:49:15,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:49:15,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:49:15,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:49:15,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:49:15,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:49:15,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:49:15,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:49:15,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:49:15,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:49:15,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:49:15,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:49:15,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:49:15,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:49:15,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:49:15,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:49:15,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:49:15,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:49:15,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:49:15,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:49:15,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:49:15,619 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:49:15,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:49:15,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:49:15,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:49:15,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:49:15,624 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-20 23:49:15,681 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:49:15,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:49:15,682 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:49:15,683 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:49:15,684 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:49:15,684 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:49:15,685 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:49:15,685 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:49:15,685 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:49:15,686 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:49:15,687 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:49:15,687 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:49:15,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:49:15,690 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:49:15,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:49:15,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:49:15,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:49:15,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:49:15,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:49:15,692 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 23:49:15,692 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 23:49:15,692 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:49:15,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:49:15,693 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:49:15,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:49:15,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:49:15,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 23:49:15,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:49:15,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:49:15,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:49:15,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:49:15,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:49:15,696 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-20 23:49:15,696 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 23:49:15,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:49:15,697 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:49:15,697 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:49:15,697 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_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc [2021-11-20 23:49:16,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:49:16,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:49:16,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:49:16,186 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:49:16,187 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:49:16,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2021-11-20 23:49:16,273 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/data/63ef3c7d1/b3260662e9e147609b813a4450689ba3/FLAG5e9a7cb34 [2021-11-20 23:49:16,901 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:49:16,902 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2021-11-20 23:49:16,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/data/63ef3c7d1/b3260662e9e147609b813a4450689ba3/FLAG5e9a7cb34 [2021-11-20 23:49:17,223 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/data/63ef3c7d1/b3260662e9e147609b813a4450689ba3 [2021-11-20 23:49:17,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:49:17,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:49:17,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:49:17,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:49:17,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:49:17,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:49:17" (1/1) ... [2021-11-20 23:49:17,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ee1f24c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:17, skipping insertion in model container [2021-11-20 23:49:17,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:49:17" (1/1) ... [2021-11-20 23:49:17,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:49:17,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:49:17,510 WARN L230 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_b1e120b4-fc47-4edf-bdde-129fe9c541a5/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2021-11-20 23:49:17,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:49:17,534 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:49:17,629 WARN L230 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_b1e120b4-fc47-4edf-bdde-129fe9c541a5/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2021-11-20 23:49:17,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:49:17,651 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:49:17,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:17 WrapperNode [2021-11-20 23:49:17,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:49:17,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:49:17,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:49:17,653 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:49:17,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:17" (1/1) ... [2021-11-20 23:49:17,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:17" (1/1) ... [2021-11-20 23:49:17,710 INFO L137 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 169 [2021-11-20 23:49:17,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:49:17,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:49:17,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:49:17,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:49:17,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:17" (1/1) ... [2021-11-20 23:49:17,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:17" (1/1) ... [2021-11-20 23:49:17,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:17" (1/1) ... [2021-11-20 23:49:17,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:17" (1/1) ... [2021-11-20 23:49:17,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:17" (1/1) ... [2021-11-20 23:49:17,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:17" (1/1) ... [2021-11-20 23:49:17,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:17" (1/1) ... [2021-11-20 23:49:17,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:49:17,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:49:17,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:49:17,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:49:17,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:17" (1/1) ... [2021-11-20 23:49:17,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:49:17,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:49:17,805 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:49:17,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:49:17,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:49:17,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-20 23:49:17,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 23:49:17,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:49:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-20 23:49:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 23:49:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:49:17,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:49:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-20 23:49:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 23:49:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:49:17,954 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:49:17,956 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:49:20,541 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:49:20,549 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:49:20,549 INFO L301 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-20 23:49:20,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:49:20 BoogieIcfgContainer [2021-11-20 23:49:20,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:49:20,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:49:20,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:49:20,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:49:20,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:49:17" (1/3) ... [2021-11-20 23:49:20,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694543b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:49:20, skipping insertion in model container [2021-11-20 23:49:20,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:49:17" (2/3) ... [2021-11-20 23:49:20,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694543b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:49:20, skipping insertion in model container [2021-11-20 23:49:20,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:49:20" (3/3) ... [2021-11-20 23:49:20,560 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2021-11-20 23:49:20,567 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:49:20,567 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:49:20,642 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:49:20,658 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 [2021-11-20 23:49:20,661 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:49:20,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 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) [2021-11-20 23:49:20,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 23:49:20,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:49:20,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:49:20,689 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:49:20,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:49:20,701 INFO L85 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2021-11-20 23:49:20,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:49:20,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2131083810] [2021-11-20 23:49:20,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:49:20,719 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:49:20,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:49:20,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:49:20,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 23:49:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:49:21,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 23:49:21,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:49:21,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:49:21,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:49:21,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:49:21,198 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:49:21,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2131083810] [2021-11-20 23:49:21,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2131083810] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:49:21,200 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:49:21,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 23:49:21,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105922925] [2021-11-20 23:49:21,203 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:49:21,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 23:49:21,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:49:21,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 23:49:21,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:49:21,262 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 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) [2021-11-20 23:49:21,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:49:21,298 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2021-11-20 23:49:21,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 23:49:21,301 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 [2021-11-20 23:49:21,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:49:21,325 INFO L225 Difference]: With dead ends: 82 [2021-11-20 23:49:21,325 INFO L226 Difference]: Without dead ends: 39 [2021-11-20 23:49:21,329 INFO L932 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 [2021-11-20 23:49:21,334 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:49:21,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:49:21,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-20 23:49:21,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-20 23:49:21,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 38 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) [2021-11-20 23:49:21,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2021-11-20 23:49:21,378 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2021-11-20 23:49:21,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:49:21,379 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2021-11-20 23:49:21,379 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) [2021-11-20 23:49:21,380 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2021-11-20 23:49:21,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 23:49:21,380 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:49:21,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:49:21,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:49:21,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:49:21,600 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:49:21,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:49:21,602 INFO L85 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2021-11-20 23:49:21,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:49:21,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915260412] [2021-11-20 23:49:21,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:49:21,603 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:49:21,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:49:21,608 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:49:21,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 23:49:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:49:22,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-20 23:49:22,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:49:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:49:25,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:49:33,171 WARN L860 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_fmod_float_~y#1| (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_fmod_float_~x#1| |ULTIMATE.start_fmod_float_~y#1|))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2021-11-20 23:49:54,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:49:54,222 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:49:54,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1915260412] [2021-11-20 23:49:54,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1915260412] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:49:54,223 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:49:54,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-20 23:49:54,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108673985] [2021-11-20 23:49:54,224 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:49:54,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-20 23:49:54,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:49:54,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-20 23:49:54,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2021-11-20 23:49:54,227 INFO L87 Difference]: Start difference. First operand 39 states and 54 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) [2021-11-20 23:49:56,547 WARN L860 $PredicateComparison]: unable to prove that (and (= (fp.div c_currentRoundingMode (fp.neg ((_ to_fp 8 24) c_currentRoundingMode 1.0)) (_ +zero 8 24)) |c_ULTIMATE.start_fmod_float_~x#1|) (forall ((|ULTIMATE.start_fmod_float_~y#1| (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode |c_ULTIMATE.start_fmod_float_~x#1| |ULTIMATE.start_fmod_float_~y#1|))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-20 23:50:00,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:50:00,947 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2021-11-20 23:50:00,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 23:50:00,948 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 [2021-11-20 23:50:00,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:50:00,951 INFO L225 Difference]: With dead ends: 44 [2021-11-20 23:50:00,951 INFO L226 Difference]: Without dead ends: 39 [2021-11-20 23:50:00,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=32, Invalid=84, Unknown=2, NotChecked=38, Total=156 [2021-11-20 23:50:00,954 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 2 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 82 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 23:50:00,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 299 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 82 Unchecked, 0.4s Time] [2021-11-20 23:50:00,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-20 23:50:00,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-20 23:50:00,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 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) [2021-11-20 23:50:00,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2021-11-20 23:50:00,965 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2021-11-20 23:50:00,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:50:00,966 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-11-20 23:50:00,966 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) [2021-11-20 23:50:00,967 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2021-11-20 23:50:00,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-20 23:50:00,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:50:00,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:50:00,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:50:01,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:50:01,179 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:50:01,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:50:01,180 INFO L85 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2021-11-20 23:50:01,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:50:01,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799807655] [2021-11-20 23:50:01,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:50:01,182 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:50:01,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:50:01,183 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:50:01,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 23:50:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:50:01,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 23:50:01,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:50:01,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:50:01,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:50:01,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:50:01,974 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:50:01,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799807655] [2021-11-20 23:50:01,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799807655] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:50:01,975 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:50:01,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 23:50:01,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882456298] [2021-11-20 23:50:01,975 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:50:01,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 23:50:01,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:50:01,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 23:50:01,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:50:01,977 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2021-11-20 23:50:01,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:50:01,989 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2021-11-20 23:50:01,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 23:50:01,991 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 13 [2021-11-20 23:50:01,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:50:01,991 INFO L225 Difference]: With dead ends: 39 [2021-11-20 23:50:01,991 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 23:50:01,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:50:01,995 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:50:01,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 3 Unchecked, 0.0s Time] [2021-11-20 23:50:01,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 23:50:01,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 23:50:01,997 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) [2021-11-20 23:50:01,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 23:50:01,998 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-11-20 23:50:01,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:50:01,998 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 23:50:01,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2021-11-20 23:50:01,999 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 23:50:01,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 23:50:02,002 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 23:50:02,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:50:02,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:50:02,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 23:50:06,096 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-11-20 23:50:06,096 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2021-11-20 23:50:06,096 INFO L858 garLoopResultBuilder]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2021-11-20 23:50:06,096 INFO L858 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2021-11-20 23:50:06,097 INFO L854 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|) (exists ((|ULTIMATE.start_fmod_float_~y#1| (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) |ULTIMATE.start_fmod_float_~y#1|))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res#1|))) [2021-11-20 23:50:06,097 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2021-11-20 23:50:06,097 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-11-20 23:50:06,097 INFO L854 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2021-11-20 23:50:06,097 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 23:50:06,097 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 23:50:06,097 INFO L858 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2021-11-20 23:50:06,098 INFO L858 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2021-11-20 23:50:06,098 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2021-11-20 23:50:06,098 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2021-11-20 23:50:06,098 INFO L861 garLoopResultBuilder]: At program point L129(lines 112 130) the Hoare annotation is: true [2021-11-20 23:50:06,098 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2021-11-20 23:50:06,098 INFO L858 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2021-11-20 23:50:06,098 INFO L854 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_fmod_float_~x#1|)) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-20 23:50:06,099 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-11-20 23:50:06,099 INFO L858 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2021-11-20 23:50:06,099 INFO L854 garLoopResultBuilder]: At program point L106(lines 19 107) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_float_#res#1| |ULTIMATE.start_fmod_float_#res#1|)) [2021-11-20 23:50:06,099 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-11-20 23:50:06,099 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 23:50:06,100 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2021-11-20 23:50:06,100 INFO L854 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2021-11-20 23:50:06,100 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2021-11-20 23:50:06,100 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2021-11-20 23:50:06,101 INFO L854 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2021-11-20 23:50:06,101 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2021-11-20 23:50:06,101 INFO L854 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2021-11-20 23:50:06,101 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 23:50:06,102 INFO L858 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2021-11-20 23:50:06,102 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 127) no Hoare annotation was computed. [2021-11-20 23:50:06,102 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2021-11-20 23:50:06,102 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2021-11-20 23:50:06,103 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2021-11-20 23:50:06,103 INFO L858 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2021-11-20 23:50:06,103 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-11-20 23:50:06,103 INFO L854 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2021-11-20 23:50:06,104 INFO L858 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2021-11-20 23:50:06,104 INFO L858 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2021-11-20 23:50:06,104 INFO L854 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2021-11-20 23:50:06,108 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-20 23:50:06,110 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 23:50:06,120 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,121 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,122 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,122 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,122 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2021-11-20 23:50:06,123 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,123 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,123 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,123 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2021-11-20 23:50:06,128 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,129 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,129 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,129 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,130 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2021-11-20 23:50:06,130 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,130 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,130 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,131 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2021-11-20 23:50:06,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 23:50:06,133 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 23:50:06,133 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 23:50:06,134 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 23:50:06,134 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:50:06 BoogieIcfgContainer [2021-11-20 23:50:06,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 23:50:06,137 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 23:50:06,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 23:50:06,137 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 23:50:06,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:49:20" (3/4) ... [2021-11-20 23:50:06,141 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 23:50:06,156 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-20 23:50:06,156 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-20 23:50:06,156 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 23:50:06,157 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 23:50:06,188 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-20 23:50:06,198 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-20 23:50:06,198 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 23:50:06,199 INFO L158 Benchmark]: Toolchain (without parser) took 48970.80ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 40.9MB in the beginning and 41.2MB in the end (delta: -222.5kB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2021-11-20 23:50:06,200 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 75.5MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:50:06,200 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.81ms. Allocated memory is still 75.5MB. Free memory was 40.7MB in the beginning and 58.2MB in the end (delta: -17.5MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2021-11-20 23:50:06,201 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.58ms. Allocated memory is still 75.5MB. Free memory was 58.2MB in the beginning and 56.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:50:06,201 INFO L158 Benchmark]: Boogie Preprocessor took 50.43ms. Allocated memory is still 75.5MB. Free memory was 56.2MB in the beginning and 54.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:50:06,202 INFO L158 Benchmark]: RCFGBuilder took 2789.00ms. Allocated memory is still 75.5MB. Free memory was 54.1MB in the beginning and 39.1MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-20 23:50:06,202 INFO L158 Benchmark]: TraceAbstraction took 45583.01ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 38.8MB in the beginning and 43.8MB in the end (delta: -5.0MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2021-11-20 23:50:06,203 INFO L158 Benchmark]: Witness Printer took 61.75ms. Allocated memory is still 92.3MB. Free memory was 43.8MB in the beginning and 41.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:50:06,206 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 75.5MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.81ms. Allocated memory is still 75.5MB. Free memory was 40.7MB in the beginning and 58.2MB in the end (delta: -17.5MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.58ms. Allocated memory is still 75.5MB. Free memory was 58.2MB in the beginning and 56.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.43ms. Allocated memory is still 75.5MB. Free memory was 56.2MB in the beginning and 54.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2789.00ms. Allocated memory is still 75.5MB. Free memory was 54.1MB in the beginning and 39.1MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 45583.01ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 38.8MB in the beginning and 43.8MB in the end (delta: -5.0MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Witness Printer took 61.75ms. Allocated memory is still 92.3MB. Free memory was 43.8MB in the beginning and 41.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,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 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_float_~y#1,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 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_float_~y#1,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 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_float_~y#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation 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: 125]: 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, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 45.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 373 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 85 IncrementalHoareTripleChecker+Unchecked, 262 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 111 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 12.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 54 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 3.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 33.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 14 QuantifiedInterpolants, 449 SizeOfPredicates, 19 NumberOfNonLiveVariables, 164 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: 110]: Loop Invariant [2021-11-20 23:50:06,221 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,221 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,221 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,221 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,222 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2021-11-20 23:50:06,222 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,222 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,222 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,223 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2021-11-20 23:50:06,223 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,223 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,224 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,224 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,224 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] [2021-11-20 23:50:06,224 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,225 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,225 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,225 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y#1,QUANTIFIED] Derived loop invariant: 1bv32 == \result && (\exists ULTIMATE.start_fmod_float_~y#1 : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y#1), ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y#1)) == \result) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2021-11-20 23:50:06,227 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 23:50:06,227 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 23:50:06,228 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 23:50:06,228 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 23:50:06,228 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 23:50:06,229 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(\result, \result) RESULT: Ultimate proved your program to be correct! [2021-11-20 23:50:06,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1e120b4-fc47-4edf-bdde-129fe9c541a5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE