./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1131a.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_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/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_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1131a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/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_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/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 9d7de4eae0919f71f47a70084dddfbb7e8bba2261ae33533b8e450f3643f4e28 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:13:53,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:13:53,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:13:53,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:13:53,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:13:53,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:13:53,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:13:53,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:13:53,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:13:53,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:13:53,712 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:13:53,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:13:53,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:13:53,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:13:53,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:13:53,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:13:53,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:13:53,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:13:53,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:13:53,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:13:53,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:13:53,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:13:53,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:13:53,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:13:53,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:13:53,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:13:53,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:13:53,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:13:53,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:13:53,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:13:53,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:13:53,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:13:53,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:13:53,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:13:53,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:13:53,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:13:53,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:13:53,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:13:53,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:13:53,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:13:53,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:13:53,784 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 00:13:53,829 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:13:53,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:13:53,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:13:53,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:13:53,837 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:13:53,838 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:13:53,838 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:13:53,839 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:13:53,839 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:13:53,839 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:13:53,840 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:13:53,840 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:13:53,841 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:13:53,841 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:13:53,841 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:13:53,841 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:13:53,842 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:13:53,842 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:13:53,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:13:53,843 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:13:53,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:13:53,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:13:53,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:13:53,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:13:53,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:13:53,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:13:53,846 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:13:53,847 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:13:53,847 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:13:53,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:13:53,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:13:53,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:13:53,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:13:53,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:13:53,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:13:53,849 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:13:53,849 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:13:53,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:13:53,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:13:53,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:13:53,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:13:53,850 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_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d7de4eae0919f71f47a70084dddfbb7e8bba2261ae33533b8e450f3643f4e28 [2021-11-21 00:13:54,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:13:54,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:13:54,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:13:54,215 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:13:54,216 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:13:54,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_1131a.c [2021-11-21 00:13:54,294 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/data/c231ce357/c49078e182294df4bd7db45a45a7c6fc/FLAG7e14556b4 [2021-11-21 00:13:54,808 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:13:54,810 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/sv-benchmarks/c/float-newlib/float_req_bl_1131a.c [2021-11-21 00:13:54,823 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/data/c231ce357/c49078e182294df4bd7db45a45a7c6fc/FLAG7e14556b4 [2021-11-21 00:13:55,142 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/data/c231ce357/c49078e182294df4bd7db45a45a7c6fc [2021-11-21 00:13:55,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:13:55,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:13:55,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:13:55,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:13:55,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:13:55,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:13:55" (1/1) ... [2021-11-21 00:13:55,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae26db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:13:55, skipping insertion in model container [2021-11-21 00:13:55,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:13:55" (1/1) ... [2021-11-21 00:13:55,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:13:55,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:13:55,442 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_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/sv-benchmarks/c/float-newlib/float_req_bl_1131a.c[2945,2958] [2021-11-21 00:13:55,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:13:55,452 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:13:55,484 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_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/sv-benchmarks/c/float-newlib/float_req_bl_1131a.c[2945,2958] [2021-11-21 00:13:55,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:13:55,499 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:13:55,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:13:55 WrapperNode [2021-11-21 00:13:55,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:13:55,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:13:55,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:13:55,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:13:55,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:13:55" (1/1) ... [2021-11-21 00:13:55,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:13:55" (1/1) ... [2021-11-21 00:13:55,547 INFO L137 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 183 [2021-11-21 00:13:55,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:13:55,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:13:55,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:13:55,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:13:55,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:13:55" (1/1) ... [2021-11-21 00:13:55,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:13:55" (1/1) ... [2021-11-21 00:13:55,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:13:55" (1/1) ... [2021-11-21 00:13:55,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:13:55" (1/1) ... [2021-11-21 00:13:55,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:13:55" (1/1) ... [2021-11-21 00:13:55,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:13:55" (1/1) ... [2021-11-21 00:13:55,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:13:55" (1/1) ... [2021-11-21 00:13:55,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:13:55,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:13:55,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:13:55,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:13:55,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:13:55" (1/1) ... [2021-11-21 00:13:55,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:13:55,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:13:55,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:13:55,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:13:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:13:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:13:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:13:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:13:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-21 00:13:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-21 00:13:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:13:55,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:13:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:13:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-21 00:13:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:13:55,804 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:13:55,805 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:13:56,114 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:13:56,149 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:13:56,150 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-21 00:13:56,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:13:56 BoogieIcfgContainer [2021-11-21 00:13:56,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:13:56,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:13:56,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:13:56,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:13:56,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:13:55" (1/3) ... [2021-11-21 00:13:56,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749dba43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:13:56, skipping insertion in model container [2021-11-21 00:13:56,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:13:55" (2/3) ... [2021-11-21 00:13:56,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749dba43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:13:56, skipping insertion in model container [2021-11-21 00:13:56,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:13:56" (3/3) ... [2021-11-21 00:13:56,166 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131a.c [2021-11-21 00:13:56,172 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:13:56,172 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:13:56,213 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:13:56,221 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 [2021-11-21 00:13:56,221 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:13:56,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 38 states have internal predecessors, (64), 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) [2021-11-21 00:13:56,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 00:13:56,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:13:56,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:13:56,268 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:13:56,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:13:56,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1844308852, now seen corresponding path program 1 times [2021-11-21 00:13:56,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:13:56,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150797839] [2021-11-21 00:13:56,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:13:56,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:13:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:13:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:13:56,462 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:13:56,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150797839] [2021-11-21 00:13:56,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150797839] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:13:56,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:13:56,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:13:56,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680969000] [2021-11-21 00:13:56,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:13:56,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:13:56,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:13:56,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:13:56,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:13:56,503 INFO L87 Difference]: Start difference. First operand has 39 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 38 states have internal predecessors, (64), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-21 00:13:56,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:13:56,544 INFO L93 Difference]: Finished difference Result 77 states and 127 transitions. [2021-11-21 00:13:56,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:13:56,547 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 [2021-11-21 00:13:56,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:13:56,556 INFO L225 Difference]: With dead ends: 77 [2021-11-21 00:13:56,556 INFO L226 Difference]: Without dead ends: 36 [2021-11-21 00:13:56,560 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 [2021-11-21 00:13:56,564 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:13:56,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:13:56,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-21 00:13:56,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-11-21 00:13:56,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 35 states have internal predecessors, (48), 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) [2021-11-21 00:13:56,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2021-11-21 00:13:56,604 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 48 transitions. Word has length 11 [2021-11-21 00:13:56,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:13:56,604 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 48 transitions. [2021-11-21 00:13:56,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-21 00:13:56,605 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2021-11-21 00:13:56,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-21 00:13:56,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:13:56,606 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:13:56,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:13:56,607 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:13:56,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:13:56,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1596074528, now seen corresponding path program 1 times [2021-11-21 00:13:56,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:13:56,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819469404] [2021-11-21 00:13:56,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:13:56,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:13:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:13:56,727 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 00:13:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:13:56,871 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 00:13:56,872 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 00:13:56,874 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 00:13:56,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:13:56,880 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-21 00:13:56,883 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 00:13:56,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:13:56 BoogieIcfgContainer [2021-11-21 00:13:56,928 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:13:56,931 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:13:56,931 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:13:56,931 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:13:56,932 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:13:56" (3/4) ... [2021-11-21 00:13:56,935 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-21 00:13:56,935 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:13:56,937 INFO L158 Benchmark]: Toolchain (without parser) took 1789.79ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 58.5MB in the beginning and 63.8MB in the end (delta: -5.3MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-11-21 00:13:56,937 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 47.4MB in the beginning and 47.4MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:13:56,941 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.94ms. Allocated memory is still 90.2MB. Free memory was 58.4MB in the beginning and 65.0MB in the end (delta: -6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 00:13:56,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.94ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 62.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:13:56,946 INFO L158 Benchmark]: Boogie Preprocessor took 36.00ms. Allocated memory is still 90.2MB. Free memory was 62.9MB in the beginning and 61.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:13:56,949 INFO L158 Benchmark]: RCFGBuilder took 567.30ms. Allocated memory is still 90.2MB. Free memory was 61.2MB in the beginning and 45.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-21 00:13:56,950 INFO L158 Benchmark]: TraceAbstraction took 769.43ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 44.4MB in the beginning and 64.5MB in the end (delta: -20.1MB). Peak memory consumption was 583.8kB. Max. memory is 16.1GB. [2021-11-21 00:13:56,951 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 111.1MB. Free memory was 64.5MB in the beginning and 63.8MB in the end (delta: 646.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:13:56,957 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 90.2MB. Free memory was 47.4MB in the beginning and 47.4MB in the end (delta: 43.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.94ms. Allocated memory is still 90.2MB. Free memory was 58.4MB in the beginning and 65.0MB in the end (delta: -6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.94ms. Allocated memory is still 90.2MB. Free memory was 65.0MB in the beginning and 62.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.00ms. Allocated memory is still 90.2MB. Free memory was 62.9MB in the beginning and 61.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 567.30ms. Allocated memory is still 90.2MB. Free memory was 61.2MB in the beginning and 45.0MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 769.43ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 44.4MB in the beginning and 64.5MB in the end (delta: -20.1MB). Peak memory consumption was 583.8kB. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 111.1MB. Free memory was 64.5MB in the beginning and 63.8MB in the end (delta: 646.9kB). 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: 137]: 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 136, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseXor at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L128] float x = __VERIFIER_nondet_float(); [L129] float y = 1.0f / 0.0f; [L131] CALL isfinite_float(x) [L111] __int32_t ix; VAL [\old(x)=8589934593, one_fmod=1, x=8589934593, Zero_fmod={4:0}] [L113] ieee_float_shape_type gf_u; [L114] gf_u.value = (x) [L115] EXPR gf_u.word [L115] (ix) = gf_u.word [L117] ix &= 0x7fffffff [L118] return (((ix) < 0x7f800000L)); [L131] RET isfinite_float(x) [L131] COND TRUE isfinite_float(x) [L133] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=8589934593, \old(y)=8589934592, one_fmod=1, x=8589934593, y=8589934592, Zero_fmod={4:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [\old(x)=8589934593, \old(y)=8589934592, one_fmod=1, sx=-1, x=8589934593, y=8589934592, Zero_fmod={4:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [\old(x)=8589934593, \old(y)=8589934592, hx=2139095040, hy=0, one_fmod=1, sx=-1, x=8589934593, y=8589934592, Zero_fmod={4:0}] [L133] RET, EXPR fmod_float(x, y) [L133] float res = fmod_float(x, y); [L136] COND TRUE res != x VAL [one_fmod=1, res=8589934591, x=8589934593, y=8589934592, Zero_fmod={4:0}] [L137] reach_error() VAL [one_fmod=1, res=8589934591, x=8589934593, y=8589934592, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, 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, 42 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 42 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2021-11-21 00:13:57,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/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_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/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_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1131a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/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_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/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 9d7de4eae0919f71f47a70084dddfbb7e8bba2261ae33533b8e450f3643f4e28 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:13:59,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:13:59,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:13:59,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:13:59,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:13:59,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:13:59,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:13:59,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:13:59,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:13:59,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:13:59,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:13:59,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:13:59,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:13:59,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:13:59,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:13:59,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:13:59,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:13:59,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:13:59,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:13:59,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:13:59,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:13:59,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:13:59,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:13:59,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:13:59,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:13:59,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:13:59,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:13:59,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:13:59,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:13:59,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:13:59,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:13:59,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:13:59,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:13:59,639 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:13:59,640 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:13:59,641 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:13:59,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:13:59,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:13:59,642 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:13:59,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:13:59,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:13:59,646 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-21 00:13:59,696 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:13:59,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:13:59,697 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:13:59,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:13:59,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:13:59,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:13:59,699 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:13:59,699 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:13:59,699 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:13:59,699 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:13:59,700 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:13:59,700 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:13:59,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:13:59,702 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:13:59,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:13:59,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:13:59,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:13:59,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:13:59,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:13:59,703 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 00:13:59,703 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 00:13:59,704 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:13:59,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:13:59,704 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:13:59,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:13:59,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:13:59,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 00:13:59,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:13:59,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:13:59,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:13:59,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:13:59,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:13:59,706 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 00:13:59,707 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 00:13:59,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:13:59,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:13:59,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:13:59,708 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_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d7de4eae0919f71f47a70084dddfbb7e8bba2261ae33533b8e450f3643f4e28 [2021-11-21 00:14:00,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:14:00,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:14:00,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:14:00,166 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:14:00,167 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:14:00,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_1131a.c [2021-11-21 00:14:00,249 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/data/ae2c6a04d/9a37586899f740c7966a573aa7154a20/FLAGdf8197e51 [2021-11-21 00:14:00,910 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:14:00,912 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/sv-benchmarks/c/float-newlib/float_req_bl_1131a.c [2021-11-21 00:14:00,922 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/data/ae2c6a04d/9a37586899f740c7966a573aa7154a20/FLAGdf8197e51 [2021-11-21 00:14:01,243 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/data/ae2c6a04d/9a37586899f740c7966a573aa7154a20 [2021-11-21 00:14:01,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:14:01,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:14:01,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:14:01,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:14:01,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:14:01,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:14:01" (1/1) ... [2021-11-21 00:14:01,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31bef807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:01, skipping insertion in model container [2021-11-21 00:14:01,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:14:01" (1/1) ... [2021-11-21 00:14:01,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:14:01,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:14:01,528 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_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/sv-benchmarks/c/float-newlib/float_req_bl_1131a.c[2945,2958] [2021-11-21 00:14:01,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:14:01,542 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:14:01,579 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_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/sv-benchmarks/c/float-newlib/float_req_bl_1131a.c[2945,2958] [2021-11-21 00:14:01,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:14:01,597 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:14:01,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:01 WrapperNode [2021-11-21 00:14:01,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:14:01,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:14:01,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:14:01,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:14:01,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:01" (1/1) ... [2021-11-21 00:14:01,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:01" (1/1) ... [2021-11-21 00:14:01,646 INFO L137 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 183 [2021-11-21 00:14:01,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:14:01,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:14:01,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:14:01,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:14:01,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:01" (1/1) ... [2021-11-21 00:14:01,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:01" (1/1) ... [2021-11-21 00:14:01,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:01" (1/1) ... [2021-11-21 00:14:01,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:01" (1/1) ... [2021-11-21 00:14:01,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:01" (1/1) ... [2021-11-21 00:14:01,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:01" (1/1) ... [2021-11-21 00:14:01,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:01" (1/1) ... [2021-11-21 00:14:01,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:14:01,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:14:01,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:14:01,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:14:01,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:01" (1/1) ... [2021-11-21 00:14:01,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:14:01,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:14:01,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:14:01,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:14:01,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:14:01,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-21 00:14:01,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 00:14:01,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:14:01,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-21 00:14:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 00:14:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:14:01,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:14:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-21 00:14:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 00:14:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:14:01,902 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:14:01,903 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:14:03,518 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:14:03,526 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:14:03,526 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-21 00:14:03,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:14:03 BoogieIcfgContainer [2021-11-21 00:14:03,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:14:03,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:14:03,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:14:03,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:14:03,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:14:01" (1/3) ... [2021-11-21 00:14:03,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed40108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:14:03, skipping insertion in model container [2021-11-21 00:14:03,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:01" (2/3) ... [2021-11-21 00:14:03,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed40108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:14:03, skipping insertion in model container [2021-11-21 00:14:03,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:14:03" (3/3) ... [2021-11-21 00:14:03,537 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131a.c [2021-11-21 00:14:03,543 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:14:03,543 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:14:03,593 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:14:03,600 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 [2021-11-21 00:14:03,601 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:14:03,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:14:03,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 00:14:03,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:14:03,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:14:03,630 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:14:03,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:14:03,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2036314411, now seen corresponding path program 1 times [2021-11-21 00:14:03,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:14:03,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971441792] [2021-11-21 00:14:03,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:03,650 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:14:03,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:14:03,654 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:14:03,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 00:14:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:14:03,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 00:14:03,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:14:04,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:04,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:14:04,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:04,081 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:14:04,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971441792] [2021-11-21 00:14:04,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971441792] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:14:04,083 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:14:04,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 00:14:04,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313136014] [2021-11-21 00:14:04,085 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:14:04,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:14:04,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:14:04,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:14:04,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:14:04,122 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2021-11-21 00:14:04,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:14:04,155 INFO L93 Difference]: Finished difference Result 92 states and 154 transitions. [2021-11-21 00:14:04,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:14:04,159 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-21 00:14:04,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:14:04,170 INFO L225 Difference]: With dead ends: 92 [2021-11-21 00:14:04,170 INFO L226 Difference]: Without dead ends: 43 [2021-11-21 00:14:04,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:14:04,179 INFO L933 BasicCegarLoop]: 63 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, 63 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 [2021-11-21 00:14:04,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:14:04,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-21 00:14:04,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-21 00:14:04,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.380952380952381) internal successors, (58), 42 states have internal predecessors, (58), 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) [2021-11-21 00:14:04,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2021-11-21 00:14:04,231 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 13 [2021-11-21 00:14:04,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:14:04,232 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2021-11-21 00:14:04,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2021-11-21 00:14:04,232 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2021-11-21 00:14:04,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-21 00:14:04,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:14:04,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:14:04,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:14:04,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:14:04,450 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:14:04,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:14:04,451 INFO L85 PathProgramCache]: Analyzing trace with hash -794964373, now seen corresponding path program 1 times [2021-11-21 00:14:04,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:14:04,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902356086] [2021-11-21 00:14:04,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:04,453 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:14:04,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:14:04,454 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:14:04,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 00:14:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:14:04,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-21 00:14:04,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:14:04,954 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 28 treesize of output 24 [2021-11-21 00:14:05,842 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-21 00:14:05,843 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 55 treesize of output 42 [2021-11-21 00:14:06,205 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:14:06,209 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 56 treesize of output 24 [2021-11-21 00:14:06,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:06,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:14:10,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:10,224 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:14:10,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902356086] [2021-11-21 00:14:10,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902356086] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:14:10,225 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:14:10,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-21 00:14:10,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766038262] [2021-11-21 00:14:10,225 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:14:10,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 00:14:10,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:14:10,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 00:14:10,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-11-21 00:14:10,228 INFO L87 Difference]: Start difference. First operand 43 states and 58 transitions. Second operand has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 18 states have internal predecessors, (28), 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) [2021-11-21 00:14:10,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:14:10,464 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2021-11-21 00:14:10,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-21 00:14:10,466 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 18 states have internal predecessors, (28), 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 16 [2021-11-21 00:14:10,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:14:10,467 INFO L225 Difference]: With dead ends: 47 [2021-11-21 00:14:10,467 INFO L226 Difference]: Without dead ends: 43 [2021-11-21 00:14:10,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-11-21 00:14:10,469 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 1 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 88 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:14:10,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 493 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 88 Unchecked, 0.2s Time] [2021-11-21 00:14:10,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-21 00:14:10,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-21 00:14:10,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 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) [2021-11-21 00:14:10,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2021-11-21 00:14:10,478 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 16 [2021-11-21 00:14:10,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:14:10,478 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2021-11-21 00:14:10,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 18 states have internal predecessors, (28), 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) [2021-11-21 00:14:10,479 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2021-11-21 00:14:10,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-21 00:14:10,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:14:10,480 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:14:10,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:14:10,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:14:10,694 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:14:10,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:14:10,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1123581797, now seen corresponding path program 1 times [2021-11-21 00:14:10,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:14:10,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845691860] [2021-11-21 00:14:10,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:10,695 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:14:10,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:14:10,696 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:14:10,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 00:14:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:14:10,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-21 00:14:10,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:14:11,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:11,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:14:12,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:12,655 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:14:12,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845691860] [2021-11-21 00:14:12,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845691860] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:14:12,656 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:14:12,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-11-21 00:14:12,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316498691] [2021-11-21 00:14:12,657 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:14:12,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-21 00:14:12,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:14:12,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-21 00:14:12,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-11-21 00:14:12,658 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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) [2021-11-21 00:14:13,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:14:13,400 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2021-11-21 00:14:13,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-21 00:14:13,401 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 17 [2021-11-21 00:14:13,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:14:13,401 INFO L225 Difference]: With dead ends: 47 [2021-11-21 00:14:13,401 INFO L226 Difference]: Without dead ends: 43 [2021-11-21 00:14:13,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2021-11-21 00:14:13,403 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 110 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:14:13,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 341 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 26 Unchecked, 0.3s Time] [2021-11-21 00:14:13,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-21 00:14:13,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-21 00:14:13,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 42 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:14:13,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2021-11-21 00:14:13,418 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 17 [2021-11-21 00:14:13,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:14:13,418 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2021-11-21 00:14:13,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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) [2021-11-21 00:14:13,419 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2021-11-21 00:14:13,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 00:14:13,419 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:14:13,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:14:13,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:14:13,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:14:13,620 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:14:13,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:14:13,621 INFO L85 PathProgramCache]: Analyzing trace with hash 469119878, now seen corresponding path program 1 times [2021-11-21 00:14:13,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:14:13,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240834447] [2021-11-21 00:14:13,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:13,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:14:13,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:14:13,623 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:14:13,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 00:14:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:14:13,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 00:14:13,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:14:14,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:14,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:14:15,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:15,982 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:14:15,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240834447] [2021-11-21 00:14:15,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240834447] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:14:15,983 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:14:15,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-21 00:14:15,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575937304] [2021-11-21 00:14:15,983 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:14:15,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 00:14:15,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:14:15,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 00:14:15,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-21 00:14:15,984 INFO L87 Difference]: Start difference. First operand 43 states and 56 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 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) [2021-11-21 00:14:15,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:14:15,987 INFO L93 Difference]: Finished difference Result 43 states and 56 transitions. [2021-11-21 00:14:15,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:14:15,987 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 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 [2021-11-21 00:14:15,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:14:15,988 INFO L225 Difference]: With dead ends: 43 [2021-11-21 00:14:15,988 INFO L226 Difference]: Without dead ends: 0 [2021-11-21 00:14:15,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-21 00:14:15,989 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:14:15,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 53 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 6 Unchecked, 0.0s Time] [2021-11-21 00:14:15,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-21 00:14:15,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-21 00:14:15,990 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) [2021-11-21 00:14:15,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-21 00:14:15,991 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-11-21 00:14:15,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:14:15,991 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-21 00:14:15,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 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) [2021-11-21 00:14:15,991 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-21 00:14:15,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 00:14:15,993 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 00:14:16,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:14:16,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:14:16,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-21 00:14:16,471 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-11-21 00:14:16,471 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2021-11-21 00:14:16,472 INFO L858 garLoopResultBuilder]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2021-11-21 00:14:16,472 INFO L858 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2021-11-21 00:14:16,472 INFO L854 garLoopResultBuilder]: At program point L118(lines 110 119) the Hoare annotation is: (and (or (not (bvslt (bvand (_ bv2147483647 32) |ULTIMATE.start_isfinite_float_~ix~1#1|) (_ bv2139095040 32))) (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) |ULTIMATE.start_main_~y~0#1|)) (exists ((|v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5|) (_ bv0 32)))) (and (let ((.cse0 (bvslt (bvand (_ bv2147483647 32) .cse1) (_ bv2139095040 32)))) (or (and .cse0 (= |ULTIMATE.start_isfinite_float_#res#1| (_ bv1 32))) (and (not .cse0) (= |ULTIMATE.start_isfinite_float_#res#1| (_ bv0 32))))) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) |ULTIMATE.start_main_~x~0#1|))))) [2021-11-21 00:14:16,472 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2021-11-21 00:14:16,473 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-11-21 00:14:16,473 INFO L854 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2021-11-21 00:14:16,473 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-21 00:14:16,473 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-21 00:14:16,474 INFO L858 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2021-11-21 00:14:16,474 INFO L858 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2021-11-21 00:14:16,474 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 139) no Hoare annotation was computed. [2021-11-21 00:14:16,474 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2021-11-21 00:14:16,474 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 112 116) no Hoare annotation was computed. [2021-11-21 00:14:16,475 INFO L854 garLoopResultBuilder]: At program point L112-2(lines 112 116) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_isfinite_float_~x#1| |ULTIMATE.start_main_~x~0#1|)) [2021-11-21 00:14:16,475 INFO L858 garLoopResultBuilder]: For program point L112-3(lines 112 116) no Hoare annotation was computed. [2021-11-21 00:14:16,475 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-11-21 00:14:16,475 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2021-11-21 00:14:16,475 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2021-11-21 00:14:16,476 INFO L858 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2021-11-21 00:14:16,476 INFO L854 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5|) (_ bv0 32)))) (and (bvslt (bvand (_ bv2147483647 32) .cse0) (_ bv2139095040 32)) (= |ULTIMATE.start_fmod_float_~x#1| (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_fmod_float_~y#1| (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))) (= |ULTIMATE.start_fmod_float_~x#1| |ULTIMATE.start_main_~x~0#1|)) [2021-11-21 00:14:16,476 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-11-21 00:14:16,476 INFO L858 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2021-11-21 00:14:16,477 INFO L854 garLoopResultBuilder]: At program point L106(lines 19 107) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_isfinite_float_~ix~1#1_11| (_ BitVec 32))) (and (= (fp ((_ extract 31 31) |v_ULTIMATE.start_isfinite_float_~ix~1#1_11|) ((_ extract 30 23) |v_ULTIMATE.start_isfinite_float_~ix~1#1_11|) ((_ extract 22 0) |v_ULTIMATE.start_isfinite_float_~ix~1#1_11|)) |ULTIMATE.start_main_~x~0#1|) (bvslt (bvand (_ bv2147483647 32) |v_ULTIMATE.start_isfinite_float_~ix~1#1_11|) (_ bv2139095040 32)))) (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_fmod_float_#res#1|)) [2021-11-21 00:14:16,477 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-11-21 00:14:16,477 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 140) no Hoare annotation was computed. [2021-11-21 00:14:16,477 INFO L858 garLoopResultBuilder]: For program point L131-2(lines 131 140) no Hoare annotation was computed. [2021-11-21 00:14:16,477 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-21 00:14:16,478 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2021-11-21 00:14:16,478 INFO L854 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2021-11-21 00:14:16,478 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2021-11-21 00:14:16,478 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2021-11-21 00:14:16,479 INFO L854 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2021-11-21 00:14:16,479 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2021-11-21 00:14:16,479 INFO L854 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2021-11-21 00:14:16,479 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-21 00:14:16,479 INFO L858 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2021-11-21 00:14:16,480 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2021-11-21 00:14:16,480 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2021-11-21 00:14:16,480 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2021-11-21 00:14:16,480 INFO L858 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2021-11-21 00:14:16,480 INFO L854 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2021-11-21 00:14:16,480 INFO L858 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2021-11-21 00:14:16,481 INFO L861 garLoopResultBuilder]: At program point L142(lines 121 143) the Hoare annotation is: true [2021-11-21 00:14:16,481 INFO L858 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2021-11-21 00:14:16,481 INFO L854 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2021-11-21 00:14:16,485 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-21 00:14:16,487 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 00:14:16,497 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,498 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,498 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,498 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,499 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,499 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,505 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,510 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,510 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,510 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,510 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,511 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,511 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,511 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,513 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,515 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,515 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,517 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,517 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,518 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,518 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 00:14:16,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 00:14:16,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 00:14:16,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 00:14:16,521 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 00:14:16,521 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 00:14:16,521 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 00:14:16,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 00:14:16,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:14:16 BoogieIcfgContainer [2021-11-21 00:14:16,523 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:14:16,523 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:14:16,524 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:14:16,524 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:14:16,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:14:03" (3/4) ... [2021-11-21 00:14:16,527 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 00:14:16,540 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-11-21 00:14:16,540 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-21 00:14:16,540 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-21 00:14:16,541 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 00:14:16,565 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == y) && x == x [2021-11-21 00:14:16,566 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!~bvslt32(~bvand32(2147483647bv32, ix), 2139095040bv32) || ~fp.eq~FLOAT(x, x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == y)) && (\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5 : bv32 :: ((~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32]), 2139095040bv32) && \result == 1bv32) || (!~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32]), 2139095040bv32) && \result == 0bv32)) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][22:0]) == x) [2021-11-21 00:14:16,566 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5 : bv32 :: ~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32]), 2139095040bv32) && x == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][22:0])) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) && x == x [2021-11-21 00:14:16,577 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 00:14:16,577 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:14:16,578 INFO L158 Benchmark]: Toolchain (without parser) took 15330.07ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 46.6MB in the beginning and 53.1MB in the end (delta: -6.6MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2021-11-21 00:14:16,578 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 67.1MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:14:16,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.17ms. Allocated memory is still 67.1MB. Free memory was 46.4MB in the beginning and 46.7MB in the end (delta: -355.0kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:14:16,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.66ms. Allocated memory is still 67.1MB. Free memory was 46.7MB in the beginning and 44.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:14:16,580 INFO L158 Benchmark]: Boogie Preprocessor took 41.18ms. Allocated memory is still 67.1MB. Free memory was 44.6MB in the beginning and 42.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:14:16,580 INFO L158 Benchmark]: RCFGBuilder took 1838.62ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 42.5MB in the beginning and 79.2MB in the end (delta: -36.6MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2021-11-21 00:14:16,581 INFO L158 Benchmark]: TraceAbstraction took 12992.75ms. Allocated memory is still 100.7MB. Free memory was 78.7MB in the beginning and 56.4MB in the end (delta: 22.3MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2021-11-21 00:14:16,581 INFO L158 Benchmark]: Witness Printer took 53.69ms. Allocated memory is still 100.7MB. Free memory was 56.4MB in the beginning and 53.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-21 00:14:16,584 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 67.1MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.17ms. Allocated memory is still 67.1MB. Free memory was 46.4MB in the beginning and 46.7MB in the end (delta: -355.0kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.66ms. Allocated memory is still 67.1MB. Free memory was 46.7MB in the beginning and 44.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.18ms. Allocated memory is still 67.1MB. Free memory was 44.6MB in the beginning and 42.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1838.62ms. Allocated memory was 67.1MB in the beginning and 100.7MB in the end (delta: 33.6MB). Free memory was 42.5MB in the beginning and 79.2MB in the end (delta: -36.6MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * TraceAbstraction took 12992.75ms. Allocated memory is still 100.7MB. Free memory was 78.7MB in the beginning and 56.4MB in the end (delta: 22.3MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Witness Printer took 53.69ms. Allocated memory is still 100.7MB. Free memory was 56.4MB in the beginning and 53.1MB in the end (delta: 3.3MB). 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_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_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: 137]: 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, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 950 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 120 IncrementalHoareTripleChecker+Unchecked, 779 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 171 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 156 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 47 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 9.8s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 120 ConstructedInterpolants, 53 QuantifiedInterpolants, 1765 SizeOfPredicates, 36 NumberOfNonLiveVariables, 263 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2021-11-21 00:14:16,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,600 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,600 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,600 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,602 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,602 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5 : bv32 :: ~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32]), 2139095040bv32) && x == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][22:0])) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) && x == x - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2021-11-21 00:14:16,603 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,603 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,603 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,605 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,605 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,605 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,606 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,606 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,606 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 00:14:16,606 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] Derived loop invariant: ((!~bvslt32(~bvand32(2147483647bv32, ix), 2139095040bv32) || ~fp.eq~FLOAT(x, x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == y)) && (\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5 : bv32 :: ((~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32]), 2139095040bv32) && \result == 1bv32) || (!~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32]), 2139095040bv32) && \result == 0bv32)) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][22:0]) == x) - InvariantResult [Line: 112]: Loop Invariant [2021-11-21 00:14:16,607 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,608 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,608 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:14:16,608 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()) == y) && x == x - InvariantResult [Line: 19]: Loop Invariant [2021-11-21 00:14:16,609 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 00:14:16,609 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 00:14:16,609 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 00:14:16,609 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 00:14:16,610 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 00:14:16,610 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 00:14:16,610 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 00:14:16,610 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_isfinite_float_~ix~1#1_11 : bv32 :: ~fp~LONGDOUBLE(v_ULTIMATE.start_isfinite_float_~ix~1#1_11[31:31], v_ULTIMATE.start_isfinite_float_~ix~1#1_11[30:23], v_ULTIMATE.start_isfinite_float_~ix~1#1_11[22:0]) == x && ~bvslt32(~bvand32(2147483647bv32, v_ULTIMATE.start_isfinite_float_~ix~1#1_11), 2139095040bv32)) && x == \result RESULT: Ultimate proved your program to be correct! [2021-11-21 00:14:16,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7005ef2-72d0-4c3c-86e7-d13f392bfa52/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE