./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1072d.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_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/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_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/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_7644c49a-9ef9-45c5-843d-3d38587c91d7/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 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:35:29,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:35:29,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:35:29,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:35:29,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:35:29,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:35:29,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:35:29,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:35:29,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:35:29,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:35:29,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:35:29,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:35:29,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:35:29,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:35:29,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:35:29,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:35:29,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:35:29,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:35:29,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:35:29,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:35:29,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:35:29,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:35:29,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:35:29,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:35:29,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:35:29,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:35:29,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:35:29,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:35:29,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:35:29,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:35:29,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:35:29,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:35:29,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:35:29,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:35:29,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:35:29,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:35:29,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:35:29,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:35:29,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:35:29,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:35:29,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:35:29,995 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-20 23:35:30,038 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:35:30,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:35:30,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:35:30,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:35:30,041 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:35:30,042 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:35:30,042 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:35:30,042 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:35:30,043 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:35:30,043 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:35:30,044 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:35:30,045 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:35:30,045 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:35:30,045 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:35:30,045 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:35:30,046 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:35:30,046 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:35:30,046 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:35:30,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:35:30,048 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:35:30,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:35:30,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:35:30,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:35:30,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:35:30,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:35:30,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:35:30,051 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:35:30,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:35:30,052 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:35:30,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:35:30,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:35:30,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:35:30,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:35:30,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:35:30,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:35:30,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:35:30,055 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:35:30,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:35:30,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:35:30,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:35:30,056 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:35:30,056 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_7644c49a-9ef9-45c5-843d-3d38587c91d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 [2021-11-20 23:35:30,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:35:30,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:35:30,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:35:30,419 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:35:30,420 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:35:30,422 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2021-11-20 23:35:30,511 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/data/caae39593/b5b9b443cac34241ae60130415418493/FLAG4bc1a0879 [2021-11-20 23:35:31,028 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:35:31,029 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2021-11-20 23:35:31,035 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/data/caae39593/b5b9b443cac34241ae60130415418493/FLAG4bc1a0879 [2021-11-20 23:35:31,426 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/data/caae39593/b5b9b443cac34241ae60130415418493 [2021-11-20 23:35:31,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:35:31,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:35:31,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:35:31,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:35:31,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:35:31,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:35:31" (1/1) ... [2021-11-20 23:35:31,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413fe9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:31, skipping insertion in model container [2021-11-20 23:35:31,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:35:31" (1/1) ... [2021-11-20 23:35:31,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:35:31,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:35:31,730 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_7644c49a-9ef9-45c5-843d-3d38587c91d7/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c[1573,1586] [2021-11-20 23:35:31,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:35:31,743 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:35:31,781 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_7644c49a-9ef9-45c5-843d-3d38587c91d7/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c[1573,1586] [2021-11-20 23:35:31,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:35:31,796 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:35:31,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:31 WrapperNode [2021-11-20 23:35:31,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:35:31,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:35:31,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:35:31,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:35:31,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:31" (1/1) ... [2021-11-20 23:35:31,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:31" (1/1) ... [2021-11-20 23:35:31,852 INFO L137 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2021-11-20 23:35:31,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:35:31,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:35:31,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:35:31,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:35:31,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:31" (1/1) ... [2021-11-20 23:35:31,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:31" (1/1) ... [2021-11-20 23:35:31,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:31" (1/1) ... [2021-11-20 23:35:31,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:31" (1/1) ... [2021-11-20 23:35:31,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:31" (1/1) ... [2021-11-20 23:35:31,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:31" (1/1) ... [2021-11-20 23:35:31,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:31" (1/1) ... [2021-11-20 23:35:31,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:35:31,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:35:31,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:35:31,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:35:31,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:31" (1/1) ... [2021-11-20 23:35:31,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:35:31,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:35:31,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:35:31,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:35:31,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:35:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:35:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:35:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-20 23:35:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:35:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-20 23:35:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:35:31,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:35:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:35:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:35:32,103 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:35:32,104 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:35:32,240 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:35:32,254 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:35:32,254 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-20 23:35:32,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:32 BoogieIcfgContainer [2021-11-20 23:35:32,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:35:32,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:35:32,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:35:32,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:35:32,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:35:31" (1/3) ... [2021-11-20 23:35:32,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c42282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:35:32, skipping insertion in model container [2021-11-20 23:35:32,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:31" (2/3) ... [2021-11-20 23:35:32,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20c42282 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:35:32, skipping insertion in model container [2021-11-20 23:35:32,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:32" (3/3) ... [2021-11-20 23:35:32,265 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d.c [2021-11-20 23:35:32,270 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:35:32,270 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:35:32,317 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:35:32,324 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 23:35:32,324 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:35:32,337 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 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 23:35:32,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-20 23:35:32,343 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:32,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:32,345 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:35:32,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:32,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1595895764, now seen corresponding path program 1 times [2021-11-20 23:35:32,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:32,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110782380] [2021-11-20 23:35:32,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:32,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:32,531 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 23:35:32,531 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:32,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110782380] [2021-11-20 23:35:32,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110782380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:32,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:32,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:35:32,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102678037] [2021-11-20 23:35:32,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:32,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 23:35:32,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:32,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 23:35:32,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:35:32,594 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 23:35:32,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:32,638 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2021-11-20 23:35:32,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 23:35:32,640 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-11-20 23:35:32,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:32,649 INFO L225 Difference]: With dead ends: 43 [2021-11-20 23:35:32,650 INFO L226 Difference]: Without dead ends: 20 [2021-11-20 23:35:32,653 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 23:35:32,658 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:32,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:35:32,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-20 23:35:32,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-20 23:35:32,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 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 23:35:32,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-11-20 23:35:32,699 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 9 [2021-11-20 23:35:32,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:32,700 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-11-20 23:35:32,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 23:35:32,701 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-11-20 23:35:32,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 23:35:32,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:32,703 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:32,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:35:32,705 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:35:32,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:32,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1668908425, now seen corresponding path program 1 times [2021-11-20 23:35:32,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:32,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998102565] [2021-11-20 23:35:32,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:32,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:32,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:35:32,771 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 23:35:32,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 23:35:32,820 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-20 23:35:32,820 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 23:35:32,822 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 23:35:32,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:35:32,828 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-20 23:35:32,831 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 23:35:32,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:35:32 BoogieIcfgContainer [2021-11-20 23:35:32,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 23:35:32,856 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 23:35:32,856 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 23:35:32,857 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 23:35:32,857 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:32" (3/4) ... [2021-11-20 23:35:32,860 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 23:35:32,861 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 23:35:32,862 INFO L158 Benchmark]: Toolchain (without parser) took 1429.44ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 74.3MB in the beginning and 109.5MB in the end (delta: -35.2MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2021-11-20 23:35:32,862 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory was 61.1MB in the beginning and 61.1MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:35:32,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.03ms. Allocated memory is still 107.0MB. Free memory was 74.1MB in the beginning and 81.6MB in the end (delta: -7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 23:35:32,863 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.51ms. Allocated memory is still 107.0MB. Free memory was 81.3MB in the beginning and 79.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:35:32,864 INFO L158 Benchmark]: Boogie Preprocessor took 52.90ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 78.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:35:32,865 INFO L158 Benchmark]: RCFGBuilder took 349.43ms. Allocated memory is still 107.0MB. Free memory was 78.3MB in the beginning and 66.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 23:35:32,866 INFO L158 Benchmark]: TraceAbstraction took 597.37ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 66.3MB in the beginning and 110.3MB in the end (delta: -44.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:35:32,866 INFO L158 Benchmark]: Witness Printer took 4.38ms. Allocated memory is still 144.7MB. Free memory was 110.3MB in the beginning and 109.5MB in the end (delta: 723.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:35:32,869 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory was 61.1MB in the beginning and 61.1MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.03ms. Allocated memory is still 107.0MB. Free memory was 74.1MB in the beginning and 81.6MB in the end (delta: -7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.51ms. Allocated memory is still 107.0MB. Free memory was 81.3MB in the beginning and 79.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.90ms. Allocated memory is still 107.0MB. Free memory was 79.7MB in the beginning and 78.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 349.43ms. Allocated memory is still 107.0MB. Free memory was 78.3MB in the beginning and 66.6MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 597.37ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 66.3MB in the beginning and 110.3MB in the end (delta: -44.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.38ms. Allocated memory is still 144.7MB. Free memory was 110.3MB in the beginning and 109.5MB in the end (delta: 723.4kB). Peak memory consumption was 2.1MB. 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: 69]: 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 68, overapproximation of bitwiseAnd at line 21, overapproximation of someUnaryFLOAToperation at line 64, overapproximation of someBinaryArithmeticFLOAToperation at line 40. Possible FailurePath: [L64] float x = -0.0f; [L65] CALL, EXPR trunc_float(x) [L15] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=4294967296, x=4294967296] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L21] signbit = w & 0x80000000 [L22] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=4294967296, exponent_less_127=255, signbit=-1, w=0, x=4294967296] [L23] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=4294967296, exponent_less_127=255, signbit=-1, w=0, x=4294967296] [L39] COND TRUE exponent_less_127 == 255 [L40] return x + x; VAL [\old(x)=4294967296, exponent_less_127=255, signbit=-1, w=0, x=4294967296] [L65] RET, EXPR trunc_float(x) [L65] float res = trunc_float(x); [L68] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=4294967297, res == -0.0f && __signbit_float(res) == 1=0, x=4294967296] [L68] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L69] reach_error() VAL [res=4294967297, x=4294967296] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 22 mSDtfsCounter, 3 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=22occurred 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 23:35:32,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/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_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/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_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/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_7644c49a-9ef9-45c5-843d-3d38587c91d7/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 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:35:35,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:35:35,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:35:35,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:35:35,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:35:35,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:35:35,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:35:35,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:35:35,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:35:35,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:35:35,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:35:35,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:35:35,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:35:35,440 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:35:35,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:35:35,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:35:35,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:35:35,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:35:35,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:35:35,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:35:35,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:35:35,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:35:35,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:35:35,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:35:35,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:35:35,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:35:35,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:35:35,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:35:35,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:35:35,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:35:35,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:35:35,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:35:35,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:35:35,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:35:35,488 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:35:35,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:35:35,489 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:35:35,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:35:35,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:35:35,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:35:35,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:35:35,493 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-20 23:35:35,538 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:35:35,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:35:35,539 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:35:35,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:35:35,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:35:35,541 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:35:35,541 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:35:35,541 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:35:35,542 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:35:35,542 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:35:35,543 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:35:35,543 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:35:35,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:35:35,545 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:35:35,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:35:35,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:35:35,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:35:35,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:35:35,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:35:35,547 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 23:35:35,547 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 23:35:35,547 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:35:35,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:35:35,547 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:35:35,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:35:35,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:35:35,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 23:35:35,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:35:35,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:35:35,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:35:35,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:35:35,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:35:35,550 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-20 23:35:35,550 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 23:35:35,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:35:35,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:35:35,551 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:35:35,551 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_7644c49a-9ef9-45c5-843d-3d38587c91d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 617ff69384da5814b2b527d10c4fa0e27490c5a4838f31ba8705b37c822dda78 [2021-11-20 23:35:35,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:35:36,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:35:36,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:35:36,006 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:35:36,007 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:35:36,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2021-11-20 23:35:36,089 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/data/a696e8094/9d56cf81b58846638549a00a1d9d5d3f/FLAG1301fdca6 [2021-11-20 23:35:36,624 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:35:36,625 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2021-11-20 23:35:36,633 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/data/a696e8094/9d56cf81b58846638549a00a1d9d5d3f/FLAG1301fdca6 [2021-11-20 23:35:36,980 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/data/a696e8094/9d56cf81b58846638549a00a1d9d5d3f [2021-11-20 23:35:36,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:35:36,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:35:36,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:35:36,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:35:36,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:35:36,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:35:36" (1/1) ... [2021-11-20 23:35:36,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@349f9c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:36, skipping insertion in model container [2021-11-20 23:35:36,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:35:36" (1/1) ... [2021-11-20 23:35:37,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:35:37,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:35:37,253 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_7644c49a-9ef9-45c5-843d-3d38587c91d7/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c[1573,1586] [2021-11-20 23:35:37,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:35:37,268 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:35:37,292 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_7644c49a-9ef9-45c5-843d-3d38587c91d7/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c[1573,1586] [2021-11-20 23:35:37,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:35:37,309 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:35:37,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:37 WrapperNode [2021-11-20 23:35:37,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:35:37,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:35:37,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:35:37,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:35:37,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:37" (1/1) ... [2021-11-20 23:35:37,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:37" (1/1) ... [2021-11-20 23:35:37,349 INFO L137 Inliner]: procedures = 19, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2021-11-20 23:35:37,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:35:37,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:35:37,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:35:37,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:35:37,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:37" (1/1) ... [2021-11-20 23:35:37,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:37" (1/1) ... [2021-11-20 23:35:37,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:37" (1/1) ... [2021-11-20 23:35:37,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:37" (1/1) ... [2021-11-20 23:35:37,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:37" (1/1) ... [2021-11-20 23:35:37,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:37" (1/1) ... [2021-11-20 23:35:37,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:37" (1/1) ... [2021-11-20 23:35:37,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:35:37,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:35:37,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:35:37,395 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:35:37,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:37" (1/1) ... [2021-11-20 23:35:37,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:35:37,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:35:37,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:35:37,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:35:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:35:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 23:35:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:35:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-20 23:35:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 23:35:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:35:37,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:35:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-20 23:35:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 23:35:37,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:35:37,604 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:35:37,607 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:35:37,855 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:35:37,861 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:35:37,861 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-20 23:35:37,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:37 BoogieIcfgContainer [2021-11-20 23:35:37,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:35:37,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:35:37,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:35:37,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:35:37,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:35:36" (1/3) ... [2021-11-20 23:35:37,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1e4726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:35:37, skipping insertion in model container [2021-11-20 23:35:37,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:37" (2/3) ... [2021-11-20 23:35:37,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1e4726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:35:37, skipping insertion in model container [2021-11-20 23:35:37,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:37" (3/3) ... [2021-11-20 23:35:37,871 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d.c [2021-11-20 23:35:37,877 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:35:37,877 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:35:37,968 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:35:37,975 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 23:35:37,978 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:35:37,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 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 23:35:37,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 23:35:37,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:37,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:37,999 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:35:38,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:38,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1945115165, now seen corresponding path program 1 times [2021-11-20 23:35:38,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:35:38,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509443898] [2021-11-20 23:35:38,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:38,018 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:35:38,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:35:38,022 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:35:38,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 23:35:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:38,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 23:35:38,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:35:38,178 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 23:35:38,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:35:38,234 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 23:35:38,235 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:35:38,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509443898] [2021-11-20 23:35:38,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [509443898] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:38,245 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:38,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 23:35:38,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097034468] [2021-11-20 23:35:38,248 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:38,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 23:35:38,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:35:38,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 23:35:38,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 23:35:38,303 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 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 23:35:38,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:38,322 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2021-11-20 23:35:38,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 23:35:38,324 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 23:35:38,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:38,354 INFO L225 Difference]: With dead ends: 48 [2021-11-20 23:35:38,354 INFO L226 Difference]: Without dead ends: 22 [2021-11-20 23:35:38,357 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 23:35:38,365 INFO L933 BasicCegarLoop]: 28 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, 28 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 23:35:38,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 23:35:38,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-20 23:35:38,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-20 23:35:38,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 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 23:35:38,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-11-20 23:35:38,403 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2021-11-20 23:35:38,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:38,404 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-11-20 23:35:38,404 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 23:35:38,405 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-11-20 23:35:38,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 23:35:38,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:38,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:38,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:35:38,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:35:38,620 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:35:38,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:38,621 INFO L85 PathProgramCache]: Analyzing trace with hash -390192032, now seen corresponding path program 1 times [2021-11-20 23:35:38,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:35:38,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104645667] [2021-11-20 23:35:38,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:38,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:35:38,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:35:38,624 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:35:38,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 23:35:38,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:38,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 23:35:38,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:35:38,816 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 23:35:38,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:35:38,922 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 23:35:38,922 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:35:38,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104645667] [2021-11-20 23:35:38,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104645667] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:38,923 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:38,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 23:35:38,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044766153] [2021-11-20 23:35:38,924 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:38,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 23:35:38,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:35:38,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 23:35:38,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:35:38,927 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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 23:35:39,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:39,001 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2021-11-20 23:35:39,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:35:39,002 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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 11 [2021-11-20 23:35:39,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:39,003 INFO L225 Difference]: With dead ends: 42 [2021-11-20 23:35:39,003 INFO L226 Difference]: Without dead ends: 31 [2021-11-20 23:35:39,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:35:39,006 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 17 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:39,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 126 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2021-11-20 23:35:39,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-20 23:35:39,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 21. [2021-11-20 23:35:39,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 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 23:35:39,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-11-20 23:35:39,012 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2021-11-20 23:35:39,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:39,013 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-11-20 23:35:39,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 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 23:35:39,014 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-11-20 23:35:39,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 23:35:39,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:39,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:39,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:35:39,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:35:39,228 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:35:39,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:39,229 INFO L85 PathProgramCache]: Analyzing trace with hash -2105213232, now seen corresponding path program 1 times [2021-11-20 23:35:39,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:35:39,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765957507] [2021-11-20 23:35:39,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:39,230 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:35:39,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:35:39,236 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:35:39,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 23:35:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:39,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 23:35:39,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:35:39,440 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 23:35:39,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:35:39,599 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 23:35:39,600 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:35:39,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765957507] [2021-11-20 23:35:39,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765957507] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:39,600 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:39,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 23:35:39,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95310724] [2021-11-20 23:35:39,601 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:39,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 23:35:39,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:35:39,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 23:35:39,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 23:35:39,603 INFO L87 Difference]: Start difference. First operand 21 states and 22 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 23:35:39,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:39,656 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-11-20 23:35:39,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 23:35:39,657 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 14 [2021-11-20 23:35:39,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:39,658 INFO L225 Difference]: With dead ends: 31 [2021-11-20 23:35:39,658 INFO L226 Difference]: Without dead ends: 19 [2021-11-20 23:35:39,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-20 23:35:39,660 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:39,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 77 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2021-11-20 23:35:39,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-20 23:35:39,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-20 23:35:39,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 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 23:35:39,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-11-20 23:35:39,665 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 14 [2021-11-20 23:35:39,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:39,665 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-11-20 23:35:39,665 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 23:35:39,665 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-11-20 23:35:39,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 23:35:39,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:39,666 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:39,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:35:39,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:35:39,879 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:35:39,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:39,880 INFO L85 PathProgramCache]: Analyzing trace with hash -675711906, now seen corresponding path program 1 times [2021-11-20 23:35:39,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:35:39,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599479293] [2021-11-20 23:35:39,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:39,880 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:35:39,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:35:39,881 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:35:39,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 23:35:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:39,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 23:35:39,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:35:40,110 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 23:35:40,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:35:40,204 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 23:35:40,204 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:35:40,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599479293] [2021-11-20 23:35:40,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [599479293] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:40,205 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:40,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-20 23:35:40,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149439529] [2021-11-20 23:35:40,205 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:40,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 23:35:40,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:35:40,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 23:35:40,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-20 23:35:40,207 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:35:40,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:40,316 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-11-20 23:35:40,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 23:35:40,317 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-20 23:35:40,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:40,318 INFO L225 Difference]: With dead ends: 22 [2021-11-20 23:35:40,318 INFO L226 Difference]: Without dead ends: 19 [2021-11-20 23:35:40,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-20 23:35:40,320 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 3 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:40,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 58 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 10 Unchecked, 0.0s Time] [2021-11-20 23:35:40,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-20 23:35:40,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-20 23:35:40,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.0) internal successors, (18), 18 states have internal predecessors, (18), 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 23:35:40,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2021-11-20 23:35:40,324 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2021-11-20 23:35:40,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:40,324 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2021-11-20 23:35:40,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:35:40,325 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2021-11-20 23:35:40,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 23:35:40,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:40,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:35:40,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 23:35:40,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:35:40,542 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:35:40,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:40,543 INFO L85 PathProgramCache]: Analyzing trace with hash 438125939, now seen corresponding path program 1 times [2021-11-20 23:35:40,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-20 23:35:40,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718758496] [2021-11-20 23:35:40,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:40,544 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 23:35:40,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-20 23:35:40,545 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 23:35:40,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 23:35:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:40,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-20 23:35:40,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:35:40,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-20 23:35:40,756 INFO L354 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2021-11-20 23:35:40,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 48 [2021-11-20 23:35:41,175 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:35:41,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 31 [2021-11-20 23:35:41,466 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 23:35:41,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:35:42,159 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 23:35:42,159 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-20 23:35:42,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718758496] [2021-11-20 23:35:42,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718758496] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:42,160 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:42,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 20 [2021-11-20 23:35:42,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158600228] [2021-11-20 23:35:42,160 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:42,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-20 23:35:42,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-20 23:35:42,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-20 23:35:42,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2021-11-20 23:35:42,162 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand has 20 states, 20 states have (on average 1.65) internal successors, (33), 20 states have internal predecessors, (33), 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 23:35:42,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:42,339 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-11-20 23:35:42,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 23:35:42,339 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.65) internal successors, (33), 20 states have internal predecessors, (33), 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 18 [2021-11-20 23:35:42,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:42,340 INFO L225 Difference]: With dead ends: 19 [2021-11-20 23:35:42,340 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 23:35:42,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-11-20 23:35:42,342 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:42,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 75 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 28 Unchecked, 0.0s Time] [2021-11-20 23:35:42,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 23:35:42,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 23:35:42,343 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 23:35:42,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 23:35:42,344 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-11-20 23:35:42,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:42,344 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 23:35:42,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.65) internal successors, (33), 20 states have internal predecessors, (33), 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 23:35:42,344 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 23:35:42,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 23:35:42,356 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 23:35:42,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-20 23:35:42,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-20 23:35:42,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 23:35:42,597 INFO L858 garLoopResultBuilder]: For program point L23(lines 23 41) no Hoare annotation was computed. [2021-11-20 23:35:42,597 INFO L858 garLoopResultBuilder]: For program point L23-1(lines 23 41) no Hoare annotation was computed. [2021-11-20 23:35:42,598 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2021-11-20 23:35:42,598 INFO L854 garLoopResultBuilder]: At program point L48-2(lines 48 52) the Hoare annotation is: (exists ((|v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9| (_ BitVec 32)) (|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9|) (_ bv0 32))) (.cse1 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11|) (_ bv0 32)))) (and (= |ULTIMATE.start___signbit_float_~x#1| (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (= .cse0 (bvand (_ bv2147483648 32) .cse1)) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))))) [2021-11-20 23:35:42,598 INFO L858 garLoopResultBuilder]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2021-11-20 23:35:42,598 INFO L861 garLoopResultBuilder]: At program point L73(lines 57 74) the Hoare annotation is: true [2021-11-20 23:35:42,598 INFO L858 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2021-11-20 23:35:42,598 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 23:35:42,598 INFO L858 garLoopResultBuilder]: For program point L32-1(lines 32 36) no Hoare annotation was computed. [2021-11-20 23:35:42,598 INFO L854 garLoopResultBuilder]: At program point L32-2(lines 32 36) the Hoare annotation is: false [2021-11-20 23:35:42,599 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 23:35:42,599 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 23:35:42,599 INFO L858 garLoopResultBuilder]: For program point L24(lines 24 37) no Hoare annotation was computed. [2021-11-20 23:35:42,599 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 69) no Hoare annotation was computed. [2021-11-20 23:35:42,599 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2021-11-20 23:35:42,599 INFO L854 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: (= (fp.neg (_ +zero 8 24)) |ULTIMATE.start_trunc_float_~x#1|) [2021-11-20 23:35:42,599 INFO L858 garLoopResultBuilder]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2021-11-20 23:35:42,599 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 23:35:42,600 INFO L854 garLoopResultBuilder]: At program point L54(lines 45 55) the Hoare annotation is: (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32)) [2021-11-20 23:35:42,600 INFO L854 garLoopResultBuilder]: At program point L42(lines 14 43) the Hoare annotation is: (exists ((|v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9| (_ BitVec 32)) (|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9|) (_ bv0 32))) (.cse1 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start_trunc_float_#res#1|) (= .cse0 (bvand (_ bv2147483648 32) .cse1)) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))))) [2021-11-20 23:35:42,600 INFO L858 garLoopResultBuilder]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2021-11-20 23:35:42,600 INFO L854 garLoopResultBuilder]: At program point L26-2(lines 26 30) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11|) (_ bv0 32)))) (and (= |ULTIMATE.start_trunc_float_~signbit~0#1| (bvand (_ bv2147483648 32) .cse0)) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) (bvslt |ULTIMATE.start_trunc_float_~exponent_less_127~0#1| (_ bv23 32))) [2021-11-20 23:35:42,600 INFO L858 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2021-11-20 23:35:42,600 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-11-20 23:35:42,600 INFO L858 garLoopResultBuilder]: For program point L68-2(lines 68 71) no Hoare annotation was computed. [2021-11-20 23:35:42,603 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-20 23:35:42,605 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 23:35:42,617 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,618 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,618 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,618 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,619 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,619 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,619 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,619 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,621 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,621 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,622 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,622 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,622 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,622 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,622 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,622 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,629 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,629 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,629 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,629 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,629 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,630 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:35:42 BoogieIcfgContainer [2021-11-20 23:35:42,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 23:35:42,634 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 23:35:42,634 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 23:35:42,634 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 23:35:42,635 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:37" (3/4) ... [2021-11-20 23:35:42,638 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 23:35:42,649 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-20 23:35:42,649 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-20 23:35:42,649 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 23:35:42,650 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 23:35:42,673 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: signbit == ~bvand32(2147483648bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0])) && ~bvslt32(exponent_less_127, 23bv32) [2021-11-20 23:35:42,674 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][22:0]) == \result && unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32] == ~bvand32(2147483648bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32])) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0])) [2021-11-20 23:35:42,674 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: (x == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][22:0]) && unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32] == ~bvand32(2147483648bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32])) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0])) [2021-11-20 23:35:42,674 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == 1bv32 [2021-11-20 23:35:42,686 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-20 23:35:42,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 23:35:42,687 INFO L158 Benchmark]: Toolchain (without parser) took 5702.50ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 53.8MB in the beginning and 57.8MB in the end (delta: -4.0MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2021-11-20 23:35:42,687 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory was 70.2MB in the beginning and 70.1MB in the end (delta: 75.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 23:35:42,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.86ms. Allocated memory is still 88.1MB. Free memory was 53.6MB in the beginning and 67.9MB in the end (delta: -14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 23:35:42,688 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.27ms. Allocated memory is still 88.1MB. Free memory was 67.9MB in the beginning and 66.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:35:42,688 INFO L158 Benchmark]: Boogie Preprocessor took 43.07ms. Allocated memory is still 88.1MB. Free memory was 66.2MB in the beginning and 64.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 23:35:42,689 INFO L158 Benchmark]: RCFGBuilder took 469.00ms. Allocated memory is still 88.1MB. Free memory was 64.6MB in the beginning and 52.8MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 23:35:42,689 INFO L158 Benchmark]: TraceAbstraction took 4768.51ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 52.3MB in the beginning and 61.8MB in the end (delta: -9.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2021-11-20 23:35:42,690 INFO L158 Benchmark]: Witness Printer took 52.31ms. Allocated memory is still 113.2MB. Free memory was 61.8MB in the beginning and 57.8MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 23:35:42,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory was 70.2MB in the beginning and 70.1MB in the end (delta: 75.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.86ms. Allocated memory is still 88.1MB. Free memory was 53.6MB in the beginning and 67.9MB in the end (delta: -14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.27ms. Allocated memory is still 88.1MB. Free memory was 67.9MB in the beginning and 66.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.07ms. Allocated memory is still 88.1MB. Free memory was 66.2MB in the beginning and 64.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 469.00ms. Allocated memory is still 88.1MB. Free memory was 64.6MB in the beginning and 52.8MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4768.51ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 52.3MB in the beginning and 61.8MB in the end (delta: -9.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Witness Printer took 52.31ms. Allocated memory is still 113.2MB. Free memory was 61.8MB in the beginning and 57.8MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] * 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: 69]: 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, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 364 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 47 IncrementalHoareTripleChecker+Unchecked, 271 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 93 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 86 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 4 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 33, 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, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 13 NumberOfFragments, 162 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 35 QuantifiedInterpolants, 1203 SizeOfPredicates, 33 NumberOfNonLiveVariables, 215 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: \result == 1bv32 - InvariantResult [Line: 48]: Loop Invariant [2021-11-20 23:35:42,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: (x == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][22:0]) && unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32] == ~bvand32(2147483648bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32])) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0])) - InvariantResult [Line: 26]: Loop Invariant [2021-11-20 23:35:42,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: signbit == ~bvand32(2147483648bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0])) && ~bvslt32(exponent_less_127, 23bv32) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant [2021-11-20 23:35:42,707 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,707 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,707 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-20 23:35:42,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,710 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,710 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] [2021-11-20 23:35:42,710 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32][22:0]) == \result && unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#sf_u~0#1.base_9][0bv32] == ~bvand32(2147483648bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32])) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_trunc_float_~#gf_u~0#1.base_11][0bv32][22:0])) RESULT: Ultimate proved your program to be correct! [2021-11-20 23:35:42,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7644c49a-9ef9-45c5-843d-3d38587c91d7/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE