./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH --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 16c784491c1bbafa07f396e2da5c8acc0901ffa28fc7d85f1b184d422e9c5e0e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:54:48,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:54:48,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:54:48,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:54:48,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:54:48,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:54:48,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:54:48,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:54:48,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:54:48,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:54:48,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:54:48,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:54:48,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:54:48,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:54:48,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:54:48,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:54:48,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:54:48,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:54:48,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:54:48,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:54:48,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:54:48,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:54:48,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:54:48,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:54:48,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:54:48,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:54:48,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:54:48,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:54:48,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:54:48,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:54:48,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:54:48,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:54:48,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:54:48,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:54:48,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:54:48,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:54:48,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:54:48,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:54:48,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:54:48,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:54:48,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:54:48,738 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 03:54:48,763 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:54:48,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:54:48,764 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:54:48,765 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:54:48,765 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:54:48,765 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:54:48,765 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:54:48,766 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:54:48,766 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:54:48,766 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:54:48,766 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:54:48,767 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:54:48,767 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:54:48,767 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:54:48,767 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:54:48,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:54:48,768 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:54:48,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:54:48,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:54:48,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:54:48,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:54:48,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:54:48,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:54:48,770 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:54:48,770 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:54:48,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:54:48,771 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:54:48,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:54:48,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:54:48,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:54:48,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:54:48,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:54:48,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:54:48,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:54:48,773 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:54:48,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:54:48,773 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:54:48,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:54:48,774 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:54:48,774 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_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16c784491c1bbafa07f396e2da5c8acc0901ffa28fc7d85f1b184d422e9c5e0e [2021-11-03 03:54:49,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:54:49,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:54:49,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:54:49,032 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:54:49,032 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:54:49,033 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2021-11-03 03:54:49,142 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/data/c0fc5ff5b/d9d7ec134c4b409ea004df8f1961c676/FLAG4ee9128de [2021-11-03 03:54:49,638 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:54:49,639 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2021-11-03 03:54:49,646 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/data/c0fc5ff5b/d9d7ec134c4b409ea004df8f1961c676/FLAG4ee9128de [2021-11-03 03:54:49,991 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/data/c0fc5ff5b/d9d7ec134c4b409ea004df8f1961c676 [2021-11-03 03:54:49,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:54:49,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:54:49,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:54:49,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:54:50,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:54:50,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:49" (1/1) ... [2021-11-03 03:54:50,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8ad602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:50, skipping insertion in model container [2021-11-03 03:54:50,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:49" (1/1) ... [2021-11-03 03:54:50,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:54:50,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:54:50,234 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c[2700,2713] [2021-11-03 03:54:50,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:50,248 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:54:50,302 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c[2700,2713] [2021-11-03 03:54:50,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:50,337 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:54:50,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:50 WrapperNode [2021-11-03 03:54:50,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:54:50,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:54:50,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:54:50,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:54:50,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:50" (1/1) ... [2021-11-03 03:54:50,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:50" (1/1) ... [2021-11-03 03:54:50,412 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:54:50,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:54:50,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:54:50,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:54:50,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:50" (1/1) ... [2021-11-03 03:54:50,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:50" (1/1) ... [2021-11-03 03:54:50,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:50" (1/1) ... [2021-11-03 03:54:50,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:50" (1/1) ... [2021-11-03 03:54:50,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:50" (1/1) ... [2021-11-03 03:54:50,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:50" (1/1) ... [2021-11-03 03:54:50,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:50" (1/1) ... [2021-11-03 03:54:50,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:54:50,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:54:50,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:54:50,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:54:50,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:50" (1/1) ... [2021-11-03 03:54:50,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:54:50,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:54:50,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:54:50,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:54:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 03:54:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:54:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 03:54:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-03 03:54:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-03 03:54:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:54:50,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:54:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 03:54:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-03 03:54:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:54:51,110 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:54:51,117 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-11-03 03:54:51,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:51 BoogieIcfgContainer [2021-11-03 03:54:51,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:54:51,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:54:51,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:54:51,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:54:51,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:54:49" (1/3) ... [2021-11-03 03:54:51,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48223d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:54:51, skipping insertion in model container [2021-11-03 03:54:51,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:50" (2/3) ... [2021-11-03 03:54:51,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48223d75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:54:51, skipping insertion in model container [2021-11-03 03:54:51,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:51" (3/3) ... [2021-11-03 03:54:51,132 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2021-11-03 03:54:51,138 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:54:51,138 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 03:54:51,189 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:54:51,199 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 [2021-11-03 03:54:51,199 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 03:54:51,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.75) internal successors, (56), 33 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:54:51,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 03:54:51,243 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:51,244 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:54:51,245 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:54:51,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:51,257 INFO L85 PathProgramCache]: Analyzing trace with hash -2021166095, now seen corresponding path program 1 times [2021-11-03 03:54:51,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:54:51,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766449509] [2021-11-03 03:54:51,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:51,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:54:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:54:51,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:54:51,456 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:54:51,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766449509] [2021-11-03 03:54:51,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766449509] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:54:51,457 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:54:51,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 03:54:51,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246476074] [2021-11-03 03:54:51,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:54:51,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:54:51,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:54:51,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:54:51,506 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.75) internal successors, (56), 33 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:54:51,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:54:51,534 INFO L93 Difference]: Finished difference Result 67 states and 111 transitions. [2021-11-03 03:54:51,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:54:51,536 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-03 03:54:51,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:54:51,545 INFO L225 Difference]: With dead ends: 67 [2021-11-03 03:54:51,545 INFO L226 Difference]: Without dead ends: 32 [2021-11-03 03:54:51,548 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:54:51,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-03 03:54:51,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-11-03 03:54:51,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.4193548387096775) internal successors, (44), 31 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:54:51,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2021-11-03 03:54:51,584 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 8 [2021-11-03 03:54:51,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:54:51,584 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2021-11-03 03:54:51,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:54:51,585 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2021-11-03 03:54:51,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 03:54:51,585 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:51,585 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:54:51,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 03:54:51,586 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:54:51,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:51,587 INFO L85 PathProgramCache]: Analyzing trace with hash 342564116, now seen corresponding path program 1 times [2021-11-03 03:54:51,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:54:51,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779332088] [2021-11-03 03:54:51,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:51,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:54:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 03:54:51,701 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 03:54:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 03:54:51,793 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 03:54:51,793 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 03:54:51,796 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:54:51,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 03:54:51,802 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-03 03:54:51,805 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 03:54:51,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:54:51 BoogieIcfgContainer [2021-11-03 03:54:51,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 03:54:51,849 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 03:54:51,849 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 03:54:51,849 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 03:54:51,850 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:51" (3/4) ... [2021-11-03 03:54:51,855 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-03 03:54:51,855 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 03:54:51,858 INFO L168 Benchmark]: Toolchain (without parser) took 1861.72 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 72.8 MB in the beginning and 89.6 MB in the end (delta: -16.9 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:51,859 INFO L168 Benchmark]: CDTParser took 0.90 ms. Allocated memory is still 104.9 MB. Free memory is still 61.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:54:51,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.63 ms. Allocated memory is still 104.9 MB. Free memory was 72.8 MB in the beginning and 79.4 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:51,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.30 ms. Allocated memory is still 104.9 MB. Free memory was 79.4 MB in the beginning and 77.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:51,868 INFO L168 Benchmark]: Boogie Preprocessor took 37.61 ms. Allocated memory is still 104.9 MB. Free memory was 77.5 MB in the beginning and 75.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:51,869 INFO L168 Benchmark]: RCFGBuilder took 668.17 ms. Allocated memory is still 104.9 MB. Free memory was 75.8 MB in the beginning and 57.7 MB in the end (delta: 18.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:51,870 INFO L168 Benchmark]: TraceAbstraction took 726.24 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 57.3 MB in the beginning and 90.2 MB in the end (delta: -32.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:54:51,870 INFO L168 Benchmark]: Witness Printer took 6.74 ms. Allocated memory is still 127.9 MB. Free memory was 90.2 MB in the beginning and 89.6 MB in the end (delta: 592.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:54:51,878 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90 ms. Allocated memory is still 104.9 MB. Free memory is still 61.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 339.63 ms. Allocated memory is still 104.9 MB. Free memory was 72.8 MB in the beginning and 79.4 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.30 ms. Allocated memory is still 104.9 MB. Free memory was 79.4 MB in the beginning and 77.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.61 ms. Allocated memory is still 104.9 MB. Free memory was 77.5 MB in the beginning and 75.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 668.17 ms. Allocated memory is still 104.9 MB. Free memory was 75.8 MB in the beginning and 57.7 MB in the end (delta: 18.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 726.24 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 57.3 MB in the beginning and 90.2 MB in the end (delta: -32.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.74 ms. Allocated memory is still 127.9 MB. Free memory was 90.2 MB in the beginning and 89.6 MB in the end (delta: 592.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 124]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someUnaryFLOAToperation at line 119, overapproximation of bitwiseXor at line 33, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L118] float x = __VERIFIER_nondet_float(); [L119] float y = -0.0f; [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={9:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L120] float res = fmod_float(x, y); [L110] return x != x; [L123] COND TRUE !isnan_float(res) [L124] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-03 03:54:51,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH --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 16c784491c1bbafa07f396e2da5c8acc0901ffa28fc7d85f1b184d422e9c5e0e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:54:54,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:54:54,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:54:54,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:54:54,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:54:54,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:54:54,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:54:54,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:54:54,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:54:54,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:54:54,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:54:54,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:54:54,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:54:54,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:54:54,404 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:54:54,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:54:54,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:54:54,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:54:54,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:54:54,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:54:54,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:54:54,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:54:54,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:54:54,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:54:54,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:54:54,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:54:54,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:54:54,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:54:54,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:54:54,449 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:54:54,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:54:54,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:54:54,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:54:54,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:54:54,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:54:54,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:54:54,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:54:54,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:54:54,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:54:54,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:54:54,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:54:54,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 03:54:54,485 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:54:54,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:54:54,487 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:54:54,487 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:54:54,487 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:54:54,487 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:54:54,488 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:54:54,488 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:54:54,488 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:54:54,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:54:54,489 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:54:54,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:54:54,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:54:54,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:54:54,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:54:54,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:54:54,491 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:54:54,491 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 03:54:54,491 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 03:54:54,491 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:54:54,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:54:54,492 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:54:54,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:54:54,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:54:54,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 03:54:54,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:54:54,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:54:54,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:54:54,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:54:54,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:54:54,494 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 03:54:54,494 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 03:54:54,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:54:54,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:54:54,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:54:54,495 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_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16c784491c1bbafa07f396e2da5c8acc0901ffa28fc7d85f1b184d422e9c5e0e [2021-11-03 03:54:54,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:54:54,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:54:54,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:54:54,968 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:54:54,969 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:54:54,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2021-11-03 03:54:55,045 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/data/1a7aa4f9d/a002fd4177ab4c01a8dd2a6968bb9190/FLAGa5dbadbe6 [2021-11-03 03:54:55,515 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:54:55,515 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2021-11-03 03:54:55,529 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/data/1a7aa4f9d/a002fd4177ab4c01a8dd2a6968bb9190/FLAGa5dbadbe6 [2021-11-03 03:54:55,909 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/data/1a7aa4f9d/a002fd4177ab4c01a8dd2a6968bb9190 [2021-11-03 03:54:55,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:54:55,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:54:55,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:54:55,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:54:55,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:54:55,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:55" (1/1) ... [2021-11-03 03:54:55,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356de207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:55, skipping insertion in model container [2021-11-03 03:54:55,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:54:55" (1/1) ... [2021-11-03 03:54:55,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:54:55,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:54:56,139 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c[2700,2713] [2021-11-03 03:54:56,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:56,154 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:54:56,273 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c[2700,2713] [2021-11-03 03:54:56,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:54:56,313 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:54:56,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:56 WrapperNode [2021-11-03 03:54:56,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:54:56,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:54:56,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:54:56,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:54:56,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:56" (1/1) ... [2021-11-03 03:54:56,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:56" (1/1) ... [2021-11-03 03:54:56,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:54:56,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:54:56,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:54:56,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:54:56,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:56" (1/1) ... [2021-11-03 03:54:56,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:56" (1/1) ... [2021-11-03 03:54:56,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:56" (1/1) ... [2021-11-03 03:54:56,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:56" (1/1) ... [2021-11-03 03:54:56,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:56" (1/1) ... [2021-11-03 03:54:56,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:56" (1/1) ... [2021-11-03 03:54:56,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:56" (1/1) ... [2021-11-03 03:54:56,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:54:56,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:54:56,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:54:56,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:54:56,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:56" (1/1) ... [2021-11-03 03:54:56,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:54:56,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:54:56,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:54:56,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:54:56,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-03 03:54:56,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 03:54:56,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:54:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-03 03:54:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 03:54:56,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:54:56,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:54:56,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-03 03:54:56,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 03:54:56,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:54:59,259 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:54:59,259 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-11-03 03:54:59,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:59 BoogieIcfgContainer [2021-11-03 03:54:59,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:54:59,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:54:59,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:54:59,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:54:59,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:54:55" (1/3) ... [2021-11-03 03:54:59,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d3c38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:54:59, skipping insertion in model container [2021-11-03 03:54:59,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:54:56" (2/3) ... [2021-11-03 03:54:59,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d3c38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:54:59, skipping insertion in model container [2021-11-03 03:54:59,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:59" (3/3) ... [2021-11-03 03:54:59,271 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2021-11-03 03:54:59,277 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:54:59,277 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 03:54:59,328 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:54:59,334 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 [2021-11-03 03:54:59,335 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 03:54:59,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:54:59,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-03 03:54:59,355 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:54:59,356 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:54:59,357 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:54:59,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:54:59,363 INFO L85 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2021-11-03 03:54:59,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:54:59,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312089616] [2021-11-03 03:54:59,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:54:59,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:54:59,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:54:59,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:54:59,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 03:54:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:54:59,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 03:54:59,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:54:59,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:54:59,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:54:59,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:54:59,890 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:54:59,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312089616] [2021-11-03 03:54:59,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [312089616] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:54:59,891 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:54:59,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 03:54:59,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633839249] [2021-11-03 03:54:59,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 03:54:59,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:54:59,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 03:54:59,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:54:59,914 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.75) internal successors, (70), 41 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:54:59,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:54:59,933 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2021-11-03 03:54:59,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 03:54:59,934 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-03 03:54:59,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:54:59,943 INFO L225 Difference]: With dead ends: 82 [2021-11-03 03:54:59,944 INFO L226 Difference]: Without dead ends: 39 [2021-11-03 03:54:59,946 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 03:54:59,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-03 03:55:00,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-03 03:55:00,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 38 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:00,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2021-11-03 03:55:00,007 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2021-11-03 03:55:00,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:55:00,007 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2021-11-03 03:55:00,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:00,008 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2021-11-03 03:55:00,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 03:55:00,010 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:55:00,010 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:55:00,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 03:55:00,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:55:00,211 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:55:00,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:55:00,212 INFO L85 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2021-11-03 03:55:00,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:55:00,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408425576] [2021-11-03 03:55:00,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:55:00,214 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:55:00,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:55:00,216 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:55:00,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 03:55:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:55:00,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-03 03:55:00,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:55:03,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:55:03,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:55:11,477 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2021-11-03 03:55:33,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:55:33,009 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:55:33,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408425576] [2021-11-03 03:55:33,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408425576] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:55:33,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:55:33,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-03 03:55:33,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637482666] [2021-11-03 03:55:33,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-03 03:55:33,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:55:33,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-03 03:55:33,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2021-11-03 03:55:33,013 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:35,317 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-03 03:55:39,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:55:39,112 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2021-11-03 03:55:39,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 03:55:39,113 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-03 03:55:39,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:55:39,114 INFO L225 Difference]: With dead ends: 44 [2021-11-03 03:55:39,114 INFO L226 Difference]: Without dead ends: 39 [2021-11-03 03:55:39,116 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=41, Invalid=97, Unknown=2, NotChecked=42, Total=182 [2021-11-03 03:55:39,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-03 03:55:39,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-03 03:55:39,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:39,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2021-11-03 03:55:39,121 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2021-11-03 03:55:39,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:55:39,121 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-11-03 03:55:39,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:39,122 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2021-11-03 03:55:39,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-03 03:55:39,122 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:55:39,122 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:55:39,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 03:55:39,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:55:39,323 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:55:39,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:55:39,324 INFO L85 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2021-11-03 03:55:39,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 03:55:39,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1162191779] [2021-11-03 03:55:39,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:55:39,325 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 03:55:39,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 03:55:39,326 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 03:55:39,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 03:55:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:55:39,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 03:55:39,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:55:39,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:55:39,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:55:39,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:55:39,921 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 03:55:39,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1162191779] [2021-11-03 03:55:39,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1162191779] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 03:55:39,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:55:39,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 03:55:39,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987818273] [2021-11-03 03:55:39,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 03:55:39,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 03:55:39,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 03:55:39,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-03 03:55:39,924 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:55:40,057 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2021-11-03 03:55:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:55:40,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-03 03:55:40,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:55:40,059 INFO L225 Difference]: With dead ends: 39 [2021-11-03 03:55:40,059 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 03:55:40,060 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-03 03:55:40,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 03:55:40,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 03:55:40,061 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) [2021-11-03 03:55:40,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 03:55:40,061 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-11-03 03:55:40,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:55:40,063 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 03:55:40,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:55:40,065 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 03:55:40,065 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 03:55:40,069 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 03:55:40,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 03:55:40,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 03:55:40,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-03 03:55:40,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:40,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:40,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:40,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:40,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:40,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:40,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:40,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:40,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:40,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:55:42,859 INFO L857 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-11-03 03:55:42,859 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2021-11-03 03:55:42,860 INFO L857 garLoopResultBuilder]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2021-11-03 03:55:42,860 INFO L857 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2021-11-03 03:55:42,860 INFO L853 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2021-11-03 03:55:42,860 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2021-11-03 03:55:42,860 INFO L857 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-11-03 03:55:42,860 INFO L853 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2021-11-03 03:55:42,861 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-03 03:55:42,861 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-03 03:55:42,861 INFO L857 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2021-11-03 03:55:42,861 INFO L857 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2021-11-03 03:55:42,861 INFO L860 garLoopResultBuilder]: At program point L128(lines 112 129) the Hoare annotation is: true [2021-11-03 03:55:42,861 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2021-11-03 03:55:42,861 INFO L857 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2021-11-03 03:55:42,862 INFO L857 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2021-11-03 03:55:42,862 INFO L857 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2021-11-03 03:55:42,862 INFO L853 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-03 03:55:42,862 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-11-03 03:55:42,862 INFO L857 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2021-11-03 03:55:42,863 INFO L853 garLoopResultBuilder]: At program point L106(lines 19 107) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) [2021-11-03 03:55:42,863 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-11-03 03:55:42,863 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-03 03:55:42,863 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 126) no Hoare annotation was computed. [2021-11-03 03:55:42,863 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2021-11-03 03:55:42,863 INFO L853 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2021-11-03 03:55:42,864 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2021-11-03 03:55:42,864 INFO L857 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2021-11-03 03:55:42,864 INFO L853 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2021-11-03 03:55:42,864 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2021-11-03 03:55:42,864 INFO L853 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2021-11-03 03:55:42,865 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-03 03:55:42,865 INFO L857 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2021-11-03 03:55:42,865 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-11-03 03:55:42,865 INFO L857 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2021-11-03 03:55:42,865 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2021-11-03 03:55:42,866 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2021-11-03 03:55:42,866 INFO L857 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2021-11-03 03:55:42,866 INFO L853 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2021-11-03 03:55:42,866 INFO L857 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2021-11-03 03:55:42,866 INFO L857 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2021-11-03 03:55:42,867 INFO L853 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2021-11-03 03:55:42,870 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-03 03:55:42,872 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 03:55:42,888 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-03 03:55:42,889 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-03 03:55:42,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:55:42 BoogieIcfgContainer [2021-11-03 03:55:42,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 03:55:42,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 03:55:42,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 03:55:42,895 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 03:55:42,895 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:54:59" (3/4) ... [2021-11-03 03:55:42,898 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 03:55:42,916 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-03 03:55:42,916 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-03 03:55:42,916 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 03:55:42,917 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 03:55:42,953 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 03:55:42,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 03:55:42,955 INFO L168 Benchmark]: Toolchain (without parser) took 47041.65 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 42.7 MB in the beginning and 45.8 MB in the end (delta: -3.1 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2021-11-03 03:55:42,956 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 62.9 MB. Free memory is still 43.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 03:55:42,956 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.38 ms. Allocated memory is still 62.9 MB. Free memory was 42.5 MB in the beginning and 44.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-03 03:55:42,957 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.05 ms. Allocated memory is still 62.9 MB. Free memory was 44.1 MB in the beginning and 42.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:55:42,957 INFO L168 Benchmark]: Boogie Preprocessor took 80.76 ms. Allocated memory is still 62.9 MB. Free memory was 42.1 MB in the beginning and 40.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 03:55:42,958 INFO L168 Benchmark]: RCFGBuilder took 2790.27 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 40.0 MB in the beginning and 54.2 MB in the end (delta: -14.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-03 03:55:42,959 INFO L168 Benchmark]: TraceAbstraction took 43629.27 ms. Allocated memory is still 75.5 MB. Free memory was 53.6 MB in the beginning and 48.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2021-11-03 03:55:42,959 INFO L168 Benchmark]: Witness Printer took 59.57 ms. Allocated memory is still 75.5 MB. Free memory was 48.7 MB in the beginning and 45.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-03 03:55:42,962 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 62.9 MB. Free memory is still 43.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 400.38 ms. Allocated memory is still 62.9 MB. Free memory was 42.5 MB in the beginning and 44.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.05 ms. Allocated memory is still 62.9 MB. Free memory was 44.1 MB in the beginning and 42.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.76 ms. Allocated memory is still 62.9 MB. Free memory was 42.1 MB in the beginning and 40.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2790.27 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 40.0 MB in the beginning and 54.2 MB in the end (delta: -14.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 43629.27 ms. Allocated memory is still 75.5 MB. Free memory was 53.6 MB in the beginning and 48.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Witness Printer took 59.57 ms. Allocated memory is still 75.5 MB. Free memory was 48.7 MB in the beginning and 45.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 124]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 43.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 112 SDtfs, 6 SDslu, 269 SDs, 0 SdLazy, 31 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 2 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 11.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 27 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 33.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 11 QuantifiedInterpolants, 368 SizeOfPredicates, 16 NumberOfNonLiveVariables, 188 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(\result, \result) && 1bv32 == \result - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2021-11-03 03:55:42,984 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-03 03:55:42,984 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(\result, \result) RESULT: Ultimate proved your program to be correct! [2021-11-03 03:55:43,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5023e8f9-13d5-43fc-bb07-d2696d22479f/bin/utaipan-aC7eJsxGYH/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