./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0960a.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_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/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_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0960a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/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_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/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 391b103ca58c3d094d944df9f24eee43ed7a92e3ac56b8be31b22c2f90c4d314 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 02:00:01,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 02:00:01,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 02:00:01,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 02:00:01,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 02:00:01,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 02:00:01,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 02:00:01,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 02:00:01,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 02:00:01,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 02:00:01,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 02:00:01,754 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 02:00:01,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 02:00:01,756 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 02:00:01,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 02:00:01,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 02:00:01,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 02:00:01,762 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 02:00:01,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 02:00:01,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 02:00:01,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 02:00:01,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 02:00:01,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 02:00:01,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 02:00:01,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 02:00:01,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 02:00:01,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 02:00:01,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 02:00:01,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 02:00:01,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 02:00:01,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 02:00:01,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 02:00:01,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 02:00:01,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 02:00:01,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 02:00:01,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 02:00:01,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 02:00:01,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 02:00:01,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 02:00:01,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 02:00:01,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 02:00:01,793 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 02:00:01,822 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 02:00:01,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 02:00:01,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 02:00:01,823 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 02:00:01,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 02:00:01,824 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 02:00:01,825 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 02:00:01,825 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 02:00:01,825 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 02:00:01,826 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 02:00:01,826 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 02:00:01,826 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 02:00:01,827 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 02:00:01,827 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 02:00:01,827 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 02:00:01,827 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 02:00:01,828 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 02:00:01,828 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 02:00:01,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 02:00:01,829 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 02:00:01,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 02:00:01,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 02:00:01,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 02:00:01,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 02:00:01,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 02:00:01,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 02:00:01,831 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 02:00:01,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 02:00:01,831 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 02:00:01,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 02:00:01,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 02:00:01,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 02:00:01,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 02:00:01,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 02:00:01,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 02:00:01,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 02:00:01,833 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 02:00:01,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 02:00:01,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 02:00:01,834 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 02:00:01,835 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 02:00:01,836 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_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 391b103ca58c3d094d944df9f24eee43ed7a92e3ac56b8be31b22c2f90c4d314 [2021-11-21 02:00:02,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 02:00:02,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 02:00:02,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 02:00:02,096 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 02:00:02,096 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 02:00:02,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2021-11-21 02:00:02,175 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/data/0863273a9/0637ffe86c844e8eab88b6a45b7cf036/FLAG4419aa569 [2021-11-21 02:00:02,645 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 02:00:02,645 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2021-11-21 02:00:02,665 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/data/0863273a9/0637ffe86c844e8eab88b6a45b7cf036/FLAG4419aa569 [2021-11-21 02:00:02,988 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/data/0863273a9/0637ffe86c844e8eab88b6a45b7cf036 [2021-11-21 02:00:02,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 02:00:02,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 02:00:02,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 02:00:02,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 02:00:03,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 02:00:03,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:00:02" (1/1) ... [2021-11-21 02:00:03,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6544ecf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:03, skipping insertion in model container [2021-11-21 02:00:03,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:00:02" (1/1) ... [2021-11-21 02:00:03,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 02:00:03,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 02:00:03,259 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_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c[4225,4238] [2021-11-21 02:00:03,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 02:00:03,271 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 02:00:03,311 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_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c[4225,4238] [2021-11-21 02:00:03,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 02:00:03,326 INFO L208 MainTranslator]: Completed translation [2021-11-21 02:00:03,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:03 WrapperNode [2021-11-21 02:00:03,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 02:00:03,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 02:00:03,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 02:00:03,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 02:00:03,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:03" (1/1) ... [2021-11-21 02:00:03,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:03" (1/1) ... [2021-11-21 02:00:03,376 INFO L137 Inliner]: procedures = 18, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 219 [2021-11-21 02:00:03,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 02:00:03,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 02:00:03,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 02:00:03,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 02:00:03,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:03" (1/1) ... [2021-11-21 02:00:03,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:03" (1/1) ... [2021-11-21 02:00:03,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:03" (1/1) ... [2021-11-21 02:00:03,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:03" (1/1) ... [2021-11-21 02:00:03,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:03" (1/1) ... [2021-11-21 02:00:03,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:03" (1/1) ... [2021-11-21 02:00:03,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:03" (1/1) ... [2021-11-21 02:00:03,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 02:00:03,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 02:00:03,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 02:00:03,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 02:00:03,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:03" (1/1) ... [2021-11-21 02:00:03,421 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 02:00:03,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 02:00:03,447 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 02:00:03,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 02:00:03,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 02:00:03,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 02:00:03,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 02:00:03,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-21 02:00:03,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 02:00:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-21 02:00:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 02:00:03,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 02:00:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 02:00:03,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 02:00:03,572 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 02:00:03,574 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 02:00:03,850 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 02:00:03,939 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 02:00:03,939 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-21 02:00:03,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:00:03 BoogieIcfgContainer [2021-11-21 02:00:03,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 02:00:03,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 02:00:03,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 02:00:03,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 02:00:03,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:00:02" (1/3) ... [2021-11-21 02:00:03,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10892497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:00:03, skipping insertion in model container [2021-11-21 02:00:03,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:03" (2/3) ... [2021-11-21 02:00:03,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10892497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:00:03, skipping insertion in model container [2021-11-21 02:00:03,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:00:03" (3/3) ... [2021-11-21 02:00:03,959 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960a.c [2021-11-21 02:00:03,965 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 02:00:03,966 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 02:00:04,029 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 02:00:04,036 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 02:00:04,037 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 02:00:04,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 states have internal predecessors, (59), 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 02:00:04,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 02:00:04,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:00:04,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:00:04,058 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 02:00:04,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:00:04,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1583136124, now seen corresponding path program 1 times [2021-11-21 02:00:04,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:00:04,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999014212] [2021-11-21 02:00:04,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:00:04,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:00:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:00:04,236 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 02:00:04,236 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:00:04,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999014212] [2021-11-21 02:00:04,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999014212] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:00:04,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:00:04,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 02:00:04,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933987115] [2021-11-21 02:00:04,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:00:04,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 02:00:04,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:00:04,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 02:00:04,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 02:00:04,276 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 02:00:04,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:00:04,321 INFO L93 Difference]: Finished difference Result 73 states and 117 transitions. [2021-11-21 02:00:04,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 02:00:04,324 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-21 02:00:04,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:00:04,333 INFO L225 Difference]: With dead ends: 73 [2021-11-21 02:00:04,333 INFO L226 Difference]: Without dead ends: 35 [2021-11-21 02:00:04,336 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 02:00:04,341 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 02:00:04,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 02:00:04,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-21 02:00:04,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-21 02:00:04,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 34 states have internal predecessors, (42), 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 02:00:04,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2021-11-21 02:00:04,384 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 9 [2021-11-21 02:00:04,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:00:04,384 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-11-21 02:00:04,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 02:00:04,385 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2021-11-21 02:00:04,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 02:00:04,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:00:04,386 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:00:04,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 02:00:04,386 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 02:00:04,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:00:04,387 INFO L85 PathProgramCache]: Analyzing trace with hash -829637447, now seen corresponding path program 1 times [2021-11-21 02:00:04,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:00:04,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593048582] [2021-11-21 02:00:04,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:00:04,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:00:04,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 02:00:04,453 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 02:00:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 02:00:04,514 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 02:00:04,515 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 02:00:04,517 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 02:00:04,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 02:00:04,523 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-21 02:00:04,529 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 02:00:04,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 02:00:04 BoogieIcfgContainer [2021-11-21 02:00:04,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 02:00:04,580 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 02:00:04,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 02:00:04,581 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 02:00:04,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:00:03" (3/4) ... [2021-11-21 02:00:04,585 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-21 02:00:04,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 02:00:04,587 INFO L158 Benchmark]: Toolchain (without parser) took 1593.50ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 58.9MB in the beginning and 70.4MB in the end (delta: -11.5MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2021-11-21 02:00:04,587 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 02:00:04,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.33ms. Allocated memory is still 92.3MB. Free memory was 58.7MB in the beginning and 65.4MB in the end (delta: -6.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 02:00:04,593 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.07ms. Allocated memory is still 92.3MB. Free memory was 65.4MB in the beginning and 62.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 02:00:04,594 INFO L158 Benchmark]: Boogie Preprocessor took 34.42ms. Allocated memory is still 92.3MB. 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 02:00:04,599 INFO L158 Benchmark]: RCFGBuilder took 529.82ms. Allocated memory is still 92.3MB. Free memory was 61.2MB in the beginning and 43.6MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-21 02:00:04,602 INFO L158 Benchmark]: TraceAbstraction took 635.38ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 42.8MB in the beginning and 70.7MB in the end (delta: -27.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 02:00:04,602 INFO L158 Benchmark]: Witness Printer took 4.91ms. Allocated memory is still 113.2MB. Free memory is still 70.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 02:00:04,605 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 92.3MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.33ms. Allocated memory is still 92.3MB. Free memory was 58.7MB in the beginning and 65.4MB in the end (delta: -6.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.07ms. Allocated memory is still 92.3MB. Free memory was 65.4MB in the beginning and 62.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.42ms. Allocated memory is still 92.3MB. 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 529.82ms. Allocated memory is still 92.3MB. Free memory was 61.2MB in the beginning and 43.6MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 635.38ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 42.8MB in the beginning and 70.7MB in the end (delta: -27.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.91ms. Allocated memory is still 113.2MB. Free memory is still 70.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 169]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 119, overapproximation of bitwiseAnd at line 154. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; [L164] float x = 0.0f; [L165] CALL, EXPR __ieee754_log10f(x) [L108] float y, z; [L109] __int32_t i, k, hx; VAL [\old(x)=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L117] k = 0 VAL [\old(x)=0, hx=-1, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [\old(x)=0, hx=-1, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] [L165] RET, EXPR __ieee754_log10f(x) [L165] float res = __ieee754_log10f(x); [L168] CALL, EXPR isinf_float(res) [L148] __int32_t ix; VAL [\old(x)=4294967296, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967296, zero=0, zero_log=0] [L150] ieee_float_shape_type gf_u; [L151] gf_u.value = (x) [L152] EXPR gf_u.word [L152] (ix) = gf_u.word [L154] ix &= 0x7fffffff [L155] return ((ix) == 0x7f800000L); [L168] RET, EXPR isinf_float(res) [L168] COND TRUE !isinf_float(res) [L169] reach_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=4294967296, two25_log=33554432, two25_log10=33554432, x=0, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 40 mSDtfsCounter, 4 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=37occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-21 02:00:04,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/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_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0960a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/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_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/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 391b103ca58c3d094d944df9f24eee43ed7a92e3ac56b8be31b22c2f90c4d314 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 02:00:07,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 02:00:07,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 02:00:07,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 02:00:07,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 02:00:07,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 02:00:07,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 02:00:07,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 02:00:07,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 02:00:07,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 02:00:07,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 02:00:07,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 02:00:07,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 02:00:07,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 02:00:07,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 02:00:07,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 02:00:07,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 02:00:07,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 02:00:07,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 02:00:07,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 02:00:07,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 02:00:07,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 02:00:07,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 02:00:07,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 02:00:07,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 02:00:07,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 02:00:07,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 02:00:07,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 02:00:07,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 02:00:07,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 02:00:07,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 02:00:07,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 02:00:07,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 02:00:07,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 02:00:07,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 02:00:07,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 02:00:07,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 02:00:07,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 02:00:07,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 02:00:07,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 02:00:07,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 02:00:07,207 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-21 02:00:07,250 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 02:00:07,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 02:00:07,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 02:00:07,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 02:00:07,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 02:00:07,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 02:00:07,253 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 02:00:07,253 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 02:00:07,253 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 02:00:07,253 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 02:00:07,254 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 02:00:07,255 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 02:00:07,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 02:00:07,256 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 02:00:07,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 02:00:07,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 02:00:07,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 02:00:07,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 02:00:07,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 02:00:07,258 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 02:00:07,258 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 02:00:07,258 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 02:00:07,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 02:00:07,259 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 02:00:07,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 02:00:07,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 02:00:07,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 02:00:07,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 02:00:07,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 02:00:07,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 02:00:07,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 02:00:07,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 02:00:07,261 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 02:00:07,261 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 02:00:07,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 02:00:07,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 02:00:07,262 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 02:00:07,262 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_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 391b103ca58c3d094d944df9f24eee43ed7a92e3ac56b8be31b22c2f90c4d314 [2021-11-21 02:00:07,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 02:00:07,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 02:00:07,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 02:00:07,635 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 02:00:07,636 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 02:00:07,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2021-11-21 02:00:07,714 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/data/19eb1b5cc/634e80c791d74c478f23b1f673810a7e/FLAG2624c158d [2021-11-21 02:00:08,273 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 02:00:08,276 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c [2021-11-21 02:00:08,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/data/19eb1b5cc/634e80c791d74c478f23b1f673810a7e/FLAG2624c158d [2021-11-21 02:00:08,601 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/data/19eb1b5cc/634e80c791d74c478f23b1f673810a7e [2021-11-21 02:00:08,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 02:00:08,605 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 02:00:08,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 02:00:08,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 02:00:08,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 02:00:08,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:00:08" (1/1) ... [2021-11-21 02:00:08,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3adcdf53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:08, skipping insertion in model container [2021-11-21 02:00:08,627 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:00:08" (1/1) ... [2021-11-21 02:00:08,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 02:00:08,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 02:00:08,921 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_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c[4225,4238] [2021-11-21 02:00:08,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 02:00:08,937 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 02:00:09,011 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_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/sv-benchmarks/c/float-newlib/float_req_bl_0960a.c[4225,4238] [2021-11-21 02:00:09,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 02:00:09,055 INFO L208 MainTranslator]: Completed translation [2021-11-21 02:00:09,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:09 WrapperNode [2021-11-21 02:00:09,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 02:00:09,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 02:00:09,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 02:00:09,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 02:00:09,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:09" (1/1) ... [2021-11-21 02:00:09,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:09" (1/1) ... [2021-11-21 02:00:09,139 INFO L137 Inliner]: procedures = 21, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 219 [2021-11-21 02:00:09,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 02:00:09,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 02:00:09,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 02:00:09,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 02:00:09,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:09" (1/1) ... [2021-11-21 02:00:09,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:09" (1/1) ... [2021-11-21 02:00:09,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:09" (1/1) ... [2021-11-21 02:00:09,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:09" (1/1) ... [2021-11-21 02:00:09,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:09" (1/1) ... [2021-11-21 02:00:09,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:09" (1/1) ... [2021-11-21 02:00:09,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:09" (1/1) ... [2021-11-21 02:00:09,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 02:00:09,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 02:00:09,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 02:00:09,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 02:00:09,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:09" (1/1) ... [2021-11-21 02:00:09,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 02:00:09,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 02:00:09,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 02:00:09,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 02:00:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 02:00:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 02:00:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 02:00:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-21 02:00:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 02:00:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 02:00:09,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 02:00:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-21 02:00:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 02:00:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 02:00:09,483 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 02:00:09,488 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 02:00:28,475 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 02:00:28,482 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 02:00:28,482 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-21 02:00:28,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:00:28 BoogieIcfgContainer [2021-11-21 02:00:28,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 02:00:28,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 02:00:28,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 02:00:28,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 02:00:28,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:00:08" (1/3) ... [2021-11-21 02:00:28,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4500ce79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:00:28, skipping insertion in model container [2021-11-21 02:00:28,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:00:09" (2/3) ... [2021-11-21 02:00:28,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4500ce79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:00:28, skipping insertion in model container [2021-11-21 02:00:28,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:00:28" (3/3) ... [2021-11-21 02:00:28,494 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960a.c [2021-11-21 02:00:28,499 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 02:00:28,500 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 02:00:28,552 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 02:00:28,559 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 02:00:28,560 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 02:00:28,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 46 states have internal predecessors, (76), 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 02:00:28,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 02:00:28,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:00:28,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:00:28,582 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 02:00:28,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:00:28,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1655029915, now seen corresponding path program 1 times [2021-11-21 02:00:28,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 02:00:28,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045111214] [2021-11-21 02:00:28,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:00:28,602 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 02:00:28,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 02:00:28,609 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 02:00:28,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 02:00:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:00:29,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 02:00:29,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 02:00:29,481 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 02:00:29,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 02:00:29,565 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 02:00:29,566 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 02:00:29,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045111214] [2021-11-21 02:00:29,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045111214] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 02:00:29,568 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:00:29,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 02:00:29,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401216714] [2021-11-21 02:00:29,571 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 02:00:29,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 02:00:29,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 02:00:29,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 02:00:29,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 02:00:29,607 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 46 states have internal predecessors, (76), 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 02:00:29,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:00:29,627 INFO L93 Difference]: Finished difference Result 92 states and 150 transitions. [2021-11-21 02:00:29,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 02:00:29,630 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 02:00:29,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:00:29,639 INFO L225 Difference]: With dead ends: 92 [2021-11-21 02:00:29,639 INFO L226 Difference]: Without dead ends: 44 [2021-11-21 02:00:29,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 02:00:29,646 INFO L933 BasicCegarLoop]: 61 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, 61 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 02:00:29,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 02:00:29,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-21 02:00:29,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-11-21 02:00:29,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3488372093023255) internal successors, (58), 43 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 02:00:29,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2021-11-21 02:00:29,683 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 11 [2021-11-21 02:00:29,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:00:29,684 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2021-11-21 02:00:29,684 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 02:00:29,685 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2021-11-21 02:00:29,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 02:00:29,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:00:29,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:00:29,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 02:00:29,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 02:00:29,919 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 02:00:29,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:00:29,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1598915326, now seen corresponding path program 1 times [2021-11-21 02:00:29,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 02:00:29,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720429483] [2021-11-21 02:00:29,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:00:29,922 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 02:00:29,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 02:00:29,923 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 02:00:29,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 02:00:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:00:30,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-21 02:00:30,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 02:00:31,641 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 02:00:31,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 02:00:37,264 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_11| (_ BitVec 32))) (or (not (= (fp.div c_currentRoundingMode (fp.neg c_~two25_log10~0) c_~zero~0) (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_11|)))) (= (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_11|) (_ bv2139095040 32)))) is different from false [2021-11-21 02:00:54,243 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 02:00:54,244 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 02:00:54,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720429483] [2021-11-21 02:00:54,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720429483] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 02:00:54,245 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:00:54,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-21 02:00:54,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594902994] [2021-11-21 02:00:54,245 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 02:00:54,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-21 02:00:54,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 02:00:54,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-21 02:00:54,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=129, Unknown=1, NotChecked=22, Total=182 [2021-11-21 02:00:54,250 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 02:00:58,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:01,620 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:04,526 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:06,737 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:09,638 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:11,819 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:13,914 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:16,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:17,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:19,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:19,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:01:19,673 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2021-11-21 02:01:19,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 02:01:19,716 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-21 02:01:19,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:01:19,717 INFO L225 Difference]: With dead ends: 54 [2021-11-21 02:01:19,717 INFO L226 Difference]: Without dead ends: 46 [2021-11-21 02:01:19,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=41, Invalid=172, Unknown=1, NotChecked=26, Total=240 [2021-11-21 02:01:19,721 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 36 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2021-11-21 02:01:19,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 326 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 8 Unknown, 68 Unchecked, 24.2s Time] [2021-11-21 02:01:19,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-21 02:01:19,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2021-11-21 02:01:19,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 43 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 02:01:19,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2021-11-21 02:01:19,731 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 13 [2021-11-21 02:01:19,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:01:19,732 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2021-11-21 02:01:19,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 13 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 02:01:19,733 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2021-11-21 02:01:19,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-21 02:01:19,734 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:01:19,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:01:19,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-21 02:01:19,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 02:01:19,951 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 02:01:19,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:01:19,952 INFO L85 PathProgramCache]: Analyzing trace with hash -657075683, now seen corresponding path program 1 times [2021-11-21 02:01:19,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 02:01:19,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380139095] [2021-11-21 02:01:19,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:01:19,953 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 02:01:19,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 02:01:19,954 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 02:01:19,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 02:01:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:01:20,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 02:01:20,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 02:01:20,940 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 02:01:20,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 02:01:21,180 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 02:01:21,180 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 02:01:21,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380139095] [2021-11-21 02:01:21,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380139095] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 02:01:21,181 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:01:21,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-21 02:01:21,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608230130] [2021-11-21 02:01:21,182 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 02:01:21,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 02:01:21,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 02:01:21,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 02:01:21,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 02:01:21,184 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 02:01:21,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:01:21,260 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2021-11-21 02:01:21,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:01:21,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-21 02:01:21,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:01:21,261 INFO L225 Difference]: With dead ends: 44 [2021-11-21 02:01:21,261 INFO L226 Difference]: Without dead ends: 0 [2021-11-21 02:01:21,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-21 02:01:21,263 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 02:01:21,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 02:01:21,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-21 02:01:21,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-21 02:01:21,266 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 02:01:21,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-21 02:01:21,266 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-11-21 02:01:21,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:01:21,267 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-21 02:01:21,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 02:01:21,268 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-21 02:01:21,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 02:01:21,271 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 02:01:21,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-21 02:01:21,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 02:01:21,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-21 02:01:21,706 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 96) no Hoare annotation was computed. [2021-11-21 02:01:21,706 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 65) no Hoare annotation was computed. [2021-11-21 02:01:21,706 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 119) no Hoare annotation was computed. [2021-11-21 02:01:21,706 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 97) no Hoare annotation was computed. [2021-11-21 02:01:21,707 INFO L854 garLoopResultBuilder]: At program point L143(lines 107 144) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_log10f_#res#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))))) (= ~two25_log10~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0)))) [2021-11-21 02:01:21,707 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 171) no Hoare annotation was computed. [2021-11-21 02:01:21,707 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2021-11-21 02:01:21,708 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-21 02:01:21,708 INFO L854 garLoopResultBuilder]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2021-11-21 02:01:21,708 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-21 02:01:21,708 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2021-11-21 02:01:21,709 INFO L854 garLoopResultBuilder]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= (_ +zero 8 24) |ULTIMATE.start___ieee754_log10f_~x#1|) (= ~two25_log10~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0)))) [2021-11-21 02:01:21,709 INFO L858 garLoopResultBuilder]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2021-11-21 02:01:21,709 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-11-21 02:01:21,710 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2021-11-21 02:01:21,710 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 121) no Hoare annotation was computed. [2021-11-21 02:01:21,710 INFO L858 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2021-11-21 02:01:21,710 INFO L858 garLoopResultBuilder]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2021-11-21 02:01:21,711 INFO L854 garLoopResultBuilder]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2021-11-21 02:01:21,711 INFO L858 garLoopResultBuilder]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2021-11-21 02:01:21,711 INFO L854 garLoopResultBuilder]: At program point L96(lines 22 98) the Hoare annotation is: false [2021-11-21 02:01:21,711 INFO L858 garLoopResultBuilder]: For program point L39(lines 39 47) no Hoare annotation was computed. [2021-11-21 02:01:21,712 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2021-11-21 02:01:21,712 INFO L854 garLoopResultBuilder]: At program point L155(lines 147 156) the Hoare annotation is: (= |ULTIMATE.start_isinf_float_#res#1| (_ bv1 32)) [2021-11-21 02:01:21,712 INFO L858 garLoopResultBuilder]: For program point L122(lines 122 123) no Hoare annotation was computed. [2021-11-21 02:01:21,712 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-21 02:01:21,713 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2021-11-21 02:01:21,713 INFO L861 garLoopResultBuilder]: At program point L173(lines 158 174) the Hoare annotation is: true [2021-11-21 02:01:21,713 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-11-21 02:01:21,714 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-21 02:01:21,726 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 132) no Hoare annotation was computed. [2021-11-21 02:01:21,726 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2021-11-21 02:01:21,726 INFO L858 garLoopResultBuilder]: For program point L58(lines 58 74) no Hoare annotation was computed. [2021-11-21 02:01:21,727 INFO L858 garLoopResultBuilder]: For program point L149-1(lines 149 153) no Hoare annotation was computed. [2021-11-21 02:01:21,728 INFO L854 garLoopResultBuilder]: At program point L149-2(lines 149 153) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_isinf_float_~x#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 33554432.0))) ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53))))) [2021-11-21 02:01:21,728 INFO L858 garLoopResultBuilder]: For program point L149-3(lines 149 153) no Hoare annotation was computed. [2021-11-21 02:01:21,728 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2021-11-21 02:01:21,729 INFO L854 garLoopResultBuilder]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2021-11-21 02:01:21,729 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 66) no Hoare annotation was computed. [2021-11-21 02:01:21,730 INFO L858 garLoopResultBuilder]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2021-11-21 02:01:21,730 INFO L854 garLoopResultBuilder]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2021-11-21 02:01:21,730 INFO L858 garLoopResultBuilder]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2021-11-21 02:01:21,730 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2021-11-21 02:01:21,730 INFO L854 garLoopResultBuilder]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2021-11-21 02:01:21,730 INFO L858 garLoopResultBuilder]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2021-11-21 02:01:21,730 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 73) no Hoare annotation was computed. [2021-11-21 02:01:21,731 INFO L858 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2021-11-21 02:01:21,734 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-21 02:01:21,735 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 02:01:21,755 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,756 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,758 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,764 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,764 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,765 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,765 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,771 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,772 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,772 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,772 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,773 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,773 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,774 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,774 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 02:01:21 BoogieIcfgContainer [2021-11-21 02:01:21,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 02:01:21,778 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 02:01:21,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 02:01:21,779 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 02:01:21,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:00:28" (3/4) ... [2021-11-21 02:01:21,783 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 02:01:21,804 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2021-11-21 02:01:21,805 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-21 02:01:21,806 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-21 02:01:21,806 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 02:01:21,834 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())))) && two25_log10 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) [2021-11-21 02:01:21,836 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) [2021-11-21 02:01:21,837 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == 1bv32 [2021-11-21 02:01:21,896 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 02:01:21,896 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 02:01:21,897 INFO L158 Benchmark]: Toolchain (without parser) took 73292.41ms. Allocated memory was 58.7MB in the beginning and 83.9MB in the end (delta: 25.2MB). Free memory was 36.2MB in the beginning and 55.7MB in the end (delta: -19.5MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2021-11-21 02:01:21,898 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory was 39.7MB in the beginning and 39.6MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 02:01:21,898 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.89ms. Allocated memory is still 58.7MB. Free memory was 35.9MB in the beginning and 41.1MB in the end (delta: -5.1MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2021-11-21 02:01:21,899 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.28ms. Allocated memory is still 58.7MB. Free memory was 40.9MB in the beginning and 38.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 02:01:21,899 INFO L158 Benchmark]: Boogie Preprocessor took 88.29ms. Allocated memory is still 58.7MB. Free memory was 38.6MB in the beginning and 36.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 02:01:21,900 INFO L158 Benchmark]: RCFGBuilder took 19255.50ms. Allocated memory was 58.7MB in the beginning and 83.9MB in the end (delta: 25.2MB). Free memory was 36.3MB in the beginning and 61.9MB in the end (delta: -25.6MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2021-11-21 02:01:21,900 INFO L158 Benchmark]: TraceAbstraction took 53289.61ms. Allocated memory is still 83.9MB. Free memory was 61.2MB in the beginning and 61.5MB in the end (delta: -296.9kB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2021-11-21 02:01:21,900 INFO L158 Benchmark]: Witness Printer took 118.65ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 55.7MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-21 02:01:21,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 58.7MB. Free memory was 39.7MB in the beginning and 39.6MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.89ms. Allocated memory is still 58.7MB. Free memory was 35.9MB in the beginning and 41.1MB in the end (delta: -5.1MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.28ms. Allocated memory is still 58.7MB. Free memory was 40.9MB in the beginning and 38.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.29ms. Allocated memory is still 58.7MB. Free memory was 38.6MB in the beginning and 36.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 19255.50ms. Allocated memory was 58.7MB in the beginning and 83.9MB in the end (delta: 25.2MB). Free memory was 36.3MB in the beginning and 61.9MB in the end (delta: -25.6MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * TraceAbstraction took 53289.61ms. Allocated memory is still 83.9MB. Free memory was 61.2MB in the beginning and 61.5MB in the end (delta: -296.9kB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Witness Printer took 118.65ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 55.7MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. 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[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[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[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[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] * 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: 169]: 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: 53.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 25.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 24.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 394 SdHoareTripleChecker+Invalid, 23.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 68 IncrementalHoareTripleChecker+Unchecked, 289 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 105 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 67 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 24.4s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 12 QuantifiedInterpolants, 398 SizeOfPredicates, 15 NumberOfNonLiveVariables, 174 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 149]: Loop Invariant [2021-11-21 02:01:21,932 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,932 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,932 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,932 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,933 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,933 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,934 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && ~Pluszero~LONGDOUBLE() == x) && two25_log10 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 107]: Loop Invariant [2021-11-21 02:01:21,937 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,937 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,938 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,938 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,938 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,939 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,939 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 02:01:21,942 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 3.3554432E7))), ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE())))) && two25_log10 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3.3554432E7)) - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: \result == 1bv32 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-21 02:01:22,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecf79b4e-02fa-4f08-b9c6-b432a11f691f/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