./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --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 6c0d87e5cab4fd8cfe59229ecc351c0984abd613d260378d067ff001b545db3a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:12:26,598 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:12:26,691 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:12:26,697 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:12:26,698 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:12:26,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:12:26,732 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:12:26,733 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:12:26,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:12:26,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:12:26,735 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:12:26,736 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:12:26,737 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:12:26,737 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:12:26,738 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:12:26,739 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:12:26,739 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:12:26,740 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:12:26,741 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:12:26,741 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:12:26,742 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:12:26,743 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:12:26,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:12:26,745 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:12:26,745 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:12:26,746 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:12:26,747 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:12:26,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:12:26,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:12:26,748 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:12:26,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:12:26,750 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:12:26,750 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:12:26,751 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:12:26,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:12:26,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:12:26,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:12:26,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:12:26,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:12:26,754 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:12:26,754 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:12:26,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:12:26,756 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:12:26,757 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:12:26,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:12:26,757 INFO L153 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_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c0d87e5cab4fd8cfe59229ecc351c0984abd613d260378d067ff001b545db3a [2023-11-19 04:12:27,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:12:27,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:12:27,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:12:27,099 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:12:27,100 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:12:27,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2023-11-19 04:12:30,353 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:12:30,624 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:12:30,625 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2023-11-19 04:12:30,634 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/data/7e41d07ce/b558863f7a7049329513bece33c3e02b/FLAGc63145439 [2023-11-19 04:12:30,653 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/data/7e41d07ce/b558863f7a7049329513bece33c3e02b [2023-11-19 04:12:30,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:12:30,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:12:30,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:30,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:12:30,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:12:30,666 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:30" (1/1) ... [2023-11-19 04:12:30,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62cbe2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:30, skipping insertion in model container [2023-11-19 04:12:30,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:30" (1/1) ... [2023-11-19 04:12:30,698 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:12:30,912 WARN L240 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_fb0b3757-b6ec-42c2-a499-eec433404fc9/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2023-11-19 04:12:30,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:30,928 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:12:30,974 WARN L240 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_fb0b3757-b6ec-42c2-a499-eec433404fc9/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2023-11-19 04:12:30,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:30,992 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:12:30,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:30 WrapperNode [2023-11-19 04:12:30,993 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:30,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:30,994 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:12:30,994 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:12:31,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:30" (1/1) ... [2023-11-19 04:12:31,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:30" (1/1) ... [2023-11-19 04:12:31,049 INFO L138 Inliner]: procedures = 19, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 295 [2023-11-19 04:12:31,050 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:31,051 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:12:31,051 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:12:31,051 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:12:31,061 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:30" (1/1) ... [2023-11-19 04:12:31,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:30" (1/1) ... [2023-11-19 04:12:31,067 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:30" (1/1) ... [2023-11-19 04:12:31,067 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:30" (1/1) ... [2023-11-19 04:12:31,081 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:30" (1/1) ... [2023-11-19 04:12:31,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:30" (1/1) ... [2023-11-19 04:12:31,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:30" (1/1) ... [2023-11-19 04:12:31,092 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:30" (1/1) ... [2023-11-19 04:12:31,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:12:31,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:12:31,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:12:31,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:12:31,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:30" (1/1) ... [2023-11-19 04:12:31,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:12:31,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:12:31,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:12:31,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:12:31,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:12:31,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:12:31,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:12:31,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 04:12:31,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:12:31,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 04:12:31,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:12:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:12:31,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:12:31,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:12:31,324 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:12:31,326 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:12:31,738 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:12:31,960 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:12:31,960 INFO L302 CfgBuilder]: Removed 14 assume(true) statements. [2023-11-19 04:12:31,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:31 BoogieIcfgContainer [2023-11-19 04:12:31,966 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:12:31,974 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:12:31,974 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:12:31,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:12:31,980 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:12:30" (1/3) ... [2023-11-19 04:12:31,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eee90f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:12:31, skipping insertion in model container [2023-11-19 04:12:31,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:30" (2/3) ... [2023-11-19 04:12:31,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eee90f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:12:31, skipping insertion in model container [2023-11-19 04:12:31,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:31" (3/3) ... [2023-11-19 04:12:31,985 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2023-11-19 04:12:32,008 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:12:32,009 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:12:32,073 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:12:32,079 INFO L357 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=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@61762afa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:12:32,079 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:12:32,083 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 39 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:12:32,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 04:12:32,089 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:32,089 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:12:32,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:32,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:32,095 INFO L85 PathProgramCache]: Analyzing trace with hash 633675763, now seen corresponding path program 1 times [2023-11-19 04:12:32,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:12:32,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138199557] [2023-11-19 04:12:32,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:32,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:12:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:32,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:12:32,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:12:32,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138199557] [2023-11-19 04:12:32,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138199557] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:32,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:32,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:12:32,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543277213] [2023-11-19 04:12:32,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:32,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:12:32,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:12:32,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:12:32,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:12:32,484 INFO L87 Difference]: Start difference. First operand has 40 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 39 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:12:32,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:32,585 INFO L93 Difference]: Finished difference Result 79 states and 127 transitions. [2023-11-19 04:12:32,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:12:32,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 04:12:32,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:32,598 INFO L225 Difference]: With dead ends: 79 [2023-11-19 04:12:32,598 INFO L226 Difference]: Without dead ends: 37 [2023-11-19 04:12:32,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:12:32,608 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:32,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:12:32,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-19 04:12:32,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-19 04:12:32,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 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) [2023-11-19 04:12:32,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2023-11-19 04:12:32,653 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 9 [2023-11-19 04:12:32,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:32,655 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2023-11-19 04:12:32,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:12:32,655 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2023-11-19 04:12:32,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:12:32,656 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:32,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:12:32,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:12:32,658 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:12:32,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:32,659 INFO L85 PathProgramCache]: Analyzing trace with hash 2046372567, now seen corresponding path program 1 times [2023-11-19 04:12:32,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:12:32,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911422525] [2023-11-19 04:12:32,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:32,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:12:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:12:32,774 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:12:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:12:32,892 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:12:32,892 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:12:32,896 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:12:32,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:12:32,903 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 04:12:32,906 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:12:32,939 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated [2023-11-19 04:12:32,940 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-19 04:12:32,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:12:32 BoogieIcfgContainer [2023-11-19 04:12:32,953 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:12:32,954 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:12:32,954 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:12:32,954 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:12:32,955 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:31" (3/4) ... [2023-11-19 04:12:32,958 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:12:32,959 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:12:32,960 INFO L158 Benchmark]: Toolchain (without parser) took 2301.57ms. Allocated memory is still 197.1MB. Free memory was 163.6MB in the beginning and 144.5MB in the end (delta: 19.1MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-11-19 04:12:32,962 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory was 76.7MB in the beginning and 76.5MB in the end (delta: 178.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:12:32,967 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.19ms. Allocated memory is still 197.1MB. Free memory was 163.6MB in the beginning and 149.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:12:32,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.56ms. Allocated memory is still 197.1MB. Free memory was 149.8MB in the beginning and 147.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:12:32,969 INFO L158 Benchmark]: Boogie Preprocessor took 45.80ms. Allocated memory is still 197.1MB. Free memory was 147.1MB in the beginning and 145.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:12:32,970 INFO L158 Benchmark]: RCFGBuilder took 869.58ms. Allocated memory is still 197.1MB. Free memory was 145.0MB in the beginning and 101.6MB in the end (delta: 43.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-19 04:12:32,970 INFO L158 Benchmark]: TraceAbstraction took 979.46ms. Allocated memory is still 197.1MB. Free memory was 101.0MB in the beginning and 145.6MB in the end (delta: -44.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:12:32,971 INFO L158 Benchmark]: Witness Printer took 5.31ms. Allocated memory is still 197.1MB. Free memory was 145.6MB in the beginning and 144.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:12:32,978 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory was 76.7MB in the beginning and 76.5MB in the end (delta: 178.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.19ms. Allocated memory is still 197.1MB. Free memory was 163.6MB in the beginning and 149.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.56ms. Allocated memory is still 197.1MB. Free memory was 149.8MB in the beginning and 147.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.80ms. Allocated memory is still 197.1MB. Free memory was 147.1MB in the beginning and 145.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 869.58ms. Allocated memory is still 197.1MB. Free memory was 145.0MB in the beginning and 101.6MB in the end (delta: 43.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 979.46ms. Allocated memory is still 197.1MB. Free memory was 101.0MB in the beginning and 145.6MB in the end (delta: -44.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.31ms. Allocated memory is still 197.1MB. Free memory was 145.6MB in the beginning and 144.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 176]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 147, overapproximation of someBinaryArithmeticFLOAToperation at line 119. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; [L168] float x = __VERIFIER_nondet_float(); [L170] x < 0 && isfinite_float(x) [L170] CALL, EXPR isfinite_float(x) [L151] __int32_t ix; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=4286578698, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=4286578698, zero=0, zero_log=0] [L153] ieee_float_shape_type gf_u; [L154] EXPR gf_u.value = (x) [L155] EXPR gf_u.word [L155] EXPR (ix) = gf_u.word [L152-L156] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=4286578698, ivln10_log10=43429449201/100000000000, ix=-8388609, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=4286578698, zero=0, zero_log=0] [L157] ix &= 0x7fffffff [L158] return (((ix) < 0x7f800000L)); [L170] RET, EXPR isfinite_float(x) [L170] x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=4286578698, zero=0, zero_log=0] [L170] COND TRUE x < 0 && isfinite_float(x) [L172] CALL, EXPR __ieee754_log10f(x) [L108] float y, z; [L109] __int32_t i, k, hx; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=4286578698, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=4286578698, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] EXPR gf_u.value = (x) [L114] EXPR gf_u.word [L114] EXPR (hx) = gf_u.word [L111-L115] { ieee_float_shape_type gf_u; gf_u.value = (x); (hx) = gf_u.word; } VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=4286578698, hx=-2147483648, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=4286578698, zero=0, zero_log=0] [L117] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=4286578698, hx=-2147483648, ivln10_log10=43429449201/100000000000, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=4286578698, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, \old(x)=4286578698, hx=-2147483648, ivln10_log10=43429449201/100000000000, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log10=33554432, two25_log=33554432, x=4286578698, zero=0, zero_log=0] [L172] RET, EXPR __ieee754_log10f(x) [L172] float res = __ieee754_log10f(x); [L175] CALL, EXPR isnan_float(res) [L147] return x != x; [L175] RET, EXPR isnan_float(res) [L175] COND TRUE !isnan_float(res) [L176] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ivln10_log10=43429449201/100000000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=4286578699, two25_log10=33554432, two25_log=33554432, x=4286578698, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 77 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 40 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2023-11-19 04:12:33,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --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 6c0d87e5cab4fd8cfe59229ecc351c0984abd613d260378d067ff001b545db3a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:12:35,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:12:35,835 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 04:12:35,845 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:12:35,846 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:12:35,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:12:35,893 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:12:35,894 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:12:35,895 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:12:35,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:12:35,901 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:12:35,901 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:12:35,902 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:12:35,904 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:12:35,904 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:12:35,905 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:12:35,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:12:35,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:12:35,907 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:12:35,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:12:35,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:12:35,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:12:35,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:12:35,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:12:35,911 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:12:35,911 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:12:35,912 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:12:35,912 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:12:35,913 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:12:35,913 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:12:35,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:12:35,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:12:35,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:12:35,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:12:35,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:12:35,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:12:35,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:12:35,917 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:12:35,918 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:12:35,919 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:12:35,919 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:12:35,920 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:12:35,920 INFO L153 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_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c0d87e5cab4fd8cfe59229ecc351c0984abd613d260378d067ff001b545db3a [2023-11-19 04:12:36,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:12:36,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:12:36,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:12:36,379 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:12:36,379 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:12:36,381 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2023-11-19 04:12:39,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:12:39,923 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:12:39,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2023-11-19 04:12:39,938 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/data/e814c5f26/7f15765093e54ec5922e681d92f0ea8a/FLAG822db129d [2023-11-19 04:12:39,958 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/data/e814c5f26/7f15765093e54ec5922e681d92f0ea8a [2023-11-19 04:12:39,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:12:39,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:12:39,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:39,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:12:39,978 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:12:39,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:39" (1/1) ... [2023-11-19 04:12:39,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50dce45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:39, skipping insertion in model container [2023-11-19 04:12:39,981 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:39" (1/1) ... [2023-11-19 04:12:40,026 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:12:40,300 WARN L240 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_fb0b3757-b6ec-42c2-a499-eec433404fc9/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2023-11-19 04:12:40,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:40,333 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:12:40,379 WARN L240 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_fb0b3757-b6ec-42c2-a499-eec433404fc9/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2023-11-19 04:12:40,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:40,400 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:12:40,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:40 WrapperNode [2023-11-19 04:12:40,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:40,402 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:40,402 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:12:40,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:12:40,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:40" (1/1) ... [2023-11-19 04:12:40,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:40" (1/1) ... [2023-11-19 04:12:40,457 INFO L138 Inliner]: procedures = 22, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 240 [2023-11-19 04:12:40,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:40,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:12:40,459 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:12:40,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:12:40,469 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:40" (1/1) ... [2023-11-19 04:12:40,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:40" (1/1) ... [2023-11-19 04:12:40,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:40" (1/1) ... [2023-11-19 04:12:40,480 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:40" (1/1) ... [2023-11-19 04:12:40,498 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:40" (1/1) ... [2023-11-19 04:12:40,524 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:40" (1/1) ... [2023-11-19 04:12:40,528 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:40" (1/1) ... [2023-11-19 04:12:40,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:40" (1/1) ... [2023-11-19 04:12:40,536 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:12:40,537 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:12:40,537 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:12:40,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:12:40,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:40" (1/1) ... [2023-11-19 04:12:40,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:12:40,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:12:40,582 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:12:40,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:12:40,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:12:40,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:12:40,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:12:40,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-19 04:12:40,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:12:40,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:12:40,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:12:40,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-19 04:12:40,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:12:40,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:12:40,770 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:12:40,772 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:13:00,363 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:13:00,370 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:13:00,370 INFO L302 CfgBuilder]: Removed 14 assume(true) statements. [2023-11-19 04:13:00,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:13:00 BoogieIcfgContainer [2023-11-19 04:13:00,374 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:13:00,377 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:13:00,378 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:13:00,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:13:00,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:12:39" (1/3) ... [2023-11-19 04:13:00,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a524f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:13:00, skipping insertion in model container [2023-11-19 04:13:00,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:40" (2/3) ... [2023-11-19 04:13:00,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a524f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:13:00, skipping insertion in model container [2023-11-19 04:13:00,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:13:00" (3/3) ... [2023-11-19 04:13:00,388 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2023-11-19 04:13:00,408 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:13:00,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:13:00,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:13:00,470 INFO L357 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=LoopHeads, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5c77cabc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:13:00,470 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:13:00,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 50 states have internal predecessors, (82), 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) [2023-11-19 04:13:00,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:13:00,482 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:00,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:13:00,483 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:00,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:00,489 INFO L85 PathProgramCache]: Analyzing trace with hash 629078660, now seen corresponding path program 1 times [2023-11-19 04:13:00,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:13:00,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885211986] [2023-11-19 04:13:00,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:00,503 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:13:00,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:13:00,504 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:13:00,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:13:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:01,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:13:01,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:01,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:13:01,139 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:13:01,139 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:13:01,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885211986] [2023-11-19 04:13:01,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885211986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:01,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:01,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:13:01,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849691220] [2023-11-19 04:13:01,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:01,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:13:01,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:13:01,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:13:01,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:13:01,179 INFO L87 Difference]: Start difference. First operand has 51 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 50 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:13:01,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:01,199 INFO L93 Difference]: Finished difference Result 99 states and 160 transitions. [2023-11-19 04:13:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:13:01,201 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 04:13:01,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:01,208 INFO L225 Difference]: With dead ends: 99 [2023-11-19 04:13:01,208 INFO L226 Difference]: Without dead ends: 47 [2023-11-19 04:13:01,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:13:01,215 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:01,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:13:01,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-19 04:13:01,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-19 04:13:01,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 46 states have internal predecessors, (62), 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) [2023-11-19 04:13:01,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2023-11-19 04:13:01,265 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 11 [2023-11-19 04:13:01,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:01,265 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2023-11-19 04:13:01,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:13:01,266 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2023-11-19 04:13:01,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:13:01,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:01,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:13:01,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:13:01,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:13:01,488 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:01,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:01,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1648732847, now seen corresponding path program 1 times [2023-11-19 04:13:01,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:13:01,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459429918] [2023-11-19 04:13:01,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:01,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:13:01,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:13:01,536 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:13:01,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:13:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:02,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 04:13:02,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:02,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:13:02,273 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:13:02,273 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:13:02,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459429918] [2023-11-19 04:13:02,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459429918] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:02,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:02,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:13:02,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955006667] [2023-11-19 04:13:02,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:02,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:13:02,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:13:02,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:13:02,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:13:02,279 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-19 04:13:02,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:02,351 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2023-11-19 04:13:02,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:13:02,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 [2023-11-19 04:13:02,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:02,353 INFO L225 Difference]: With dead ends: 87 [2023-11-19 04:13:02,354 INFO L226 Difference]: Without dead ends: 47 [2023-11-19 04:13:02,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:13:02,356 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:02,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:13:02,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-19 04:13:02,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-19 04:13:02,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 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) [2023-11-19 04:13:02,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2023-11-19 04:13:02,367 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2023-11-19 04:13:02,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:02,367 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2023-11-19 04:13:02,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-19 04:13:02,368 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2023-11-19 04:13:02,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:13:02,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:02,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:13:02,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 04:13:02,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:13:02,582 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:02,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:02,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1229314972, now seen corresponding path program 1 times [2023-11-19 04:13:02,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:13:02,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884157762] [2023-11-19 04:13:02,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:02,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:13:02,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:13:02,586 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:13:02,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 04:13:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:03,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 04:13:03,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:04,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:13:04,084 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:13:04,084 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:13:04,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884157762] [2023-11-19 04:13:04,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884157762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:04,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:04,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 04:13:04,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693701130] [2023-11-19 04:13:04,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:04,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:13:04,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:13:04,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:13:04,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:13:04,088 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:13:05,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:05,783 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2023-11-19 04:13:05,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:13:05,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-19 04:13:05,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:05,786 INFO L225 Difference]: With dead ends: 52 [2023-11-19 04:13:05,786 INFO L226 Difference]: Without dead ends: 18 [2023-11-19 04:13:05,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:13:05,789 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 21 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:05,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 38 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-19 04:13:05,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-19 04:13:05,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-11-19 04:13:05,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0) internal successors, (17), 17 states have internal predecessors, (17), 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) [2023-11-19 04:13:05,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2023-11-19 04:13:05,794 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2023-11-19 04:13:05,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:05,795 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2023-11-19 04:13:05,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:13:05,795 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2023-11-19 04:13:05,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 04:13:05,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:05,796 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:13:05,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 04:13:06,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:13:06,013 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:06,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:06,014 INFO L85 PathProgramCache]: Analyzing trace with hash -616191433, now seen corresponding path program 1 times [2023-11-19 04:13:06,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:13:06,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470576015] [2023-11-19 04:13:06,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:06,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:13:06,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:13:06,018 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:13:06,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 04:13:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:06,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 04:13:06,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:13:07,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:13:07,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:13:07,694 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:13:07,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470576015] [2023-11-19 04:13:07,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470576015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:07,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:07,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:13:07,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277695046] [2023-11-19 04:13:07,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:07,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 04:13:07,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:13:07,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 04:13:07,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 04:13:07,697 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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) [2023-11-19 04:13:08,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:08,988 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2023-11-19 04:13:08,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:13:08,989 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-11-19 04:13:08,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:08,989 INFO L225 Difference]: With dead ends: 18 [2023-11-19 04:13:08,989 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:13:08,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 04:13:08,991 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:08,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 43 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 04:13:08,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:13:08,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:13:08,993 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) [2023-11-19 04:13:08,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:13:08,994 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2023-11-19 04:13:08,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:08,994 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:13:08,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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) [2023-11-19 04:13:08,995 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:13:08,995 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:13:08,997 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:13:09,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-19 04:13:09,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:13:09,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 04:13:09,430 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 96) no Hoare annotation was computed. [2023-11-19 04:13:09,431 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 65) no Hoare annotation was computed. [2023-11-19 04:13:09,431 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 119) no Hoare annotation was computed. [2023-11-19 04:13:09,431 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 97) no Hoare annotation was computed. [2023-11-19 04:13:09,431 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2023-11-19 04:13:09,431 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 161 182) no Hoare annotation was computed. [2023-11-19 04:13:09,431 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2023-11-19 04:13:09,432 INFO L895 garLoopResultBuilder]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2023-11-19 04:13:09,432 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 04:13:09,432 INFO L899 garLoopResultBuilder]: For program point L152-1(lines 152 156) no Hoare annotation was computed. [2023-11-19 04:13:09,432 INFO L895 garLoopResultBuilder]: At program point L152-2(lines 152 156) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) |ULTIMATE.start_main_#t~short14#1| (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start_main_~x~0#1| ((_ to_fp 8 24) currentRoundingMode (_ bv0 32))))) [2023-11-19 04:13:09,433 INFO L899 garLoopResultBuilder]: For program point L152-3(lines 152 156) no Hoare annotation was computed. [2023-11-19 04:13:09,433 INFO L899 garLoopResultBuilder]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2023-11-19 04:13:09,433 INFO L895 garLoopResultBuilder]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start___ieee754_log10f_~x#1| ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start_main_~x~0#1| ((_ to_fp 8 24) currentRoundingMode (_ bv0 32))))) [2023-11-19 04:13:09,433 INFO L899 garLoopResultBuilder]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2023-11-19 04:13:09,434 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2023-11-19 04:13:09,434 INFO L899 garLoopResultBuilder]: For program point L120(lines 120 121) no Hoare annotation was computed. [2023-11-19 04:13:09,434 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2023-11-19 04:13:09,434 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2023-11-19 04:13:09,434 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 04:13:09,435 INFO L899 garLoopResultBuilder]: For program point L170-2(lines 170 179) no Hoare annotation was computed. [2023-11-19 04:13:09,435 INFO L899 garLoopResultBuilder]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2023-11-19 04:13:09,435 INFO L895 garLoopResultBuilder]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2023-11-19 04:13:09,435 INFO L899 garLoopResultBuilder]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2023-11-19 04:13:09,435 INFO L899 garLoopResultBuilder]: For program point L170-4(lines 170 179) no Hoare annotation was computed. [2023-11-19 04:13:09,435 INFO L899 garLoopResultBuilder]: For program point isfinite_float_returnLabel#1(lines 150 159) no Hoare annotation was computed. [2023-11-19 04:13:09,436 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 47) no Hoare annotation was computed. [2023-11-19 04:13:09,436 INFO L899 garLoopResultBuilder]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2023-11-19 04:13:09,436 INFO L899 garLoopResultBuilder]: For program point L122(lines 122 123) no Hoare annotation was computed. [2023-11-19 04:13:09,436 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 04:13:09,437 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 176) no Hoare annotation was computed. [2023-11-19 04:13:09,437 INFO L899 garLoopResultBuilder]: For program point isnan_float_returnLabel#1(line 147) no Hoare annotation was computed. [2023-11-19 04:13:09,437 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2023-11-19 04:13:09,437 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 04:13:09,437 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 132) no Hoare annotation was computed. [2023-11-19 04:13:09,438 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2023-11-19 04:13:09,438 INFO L899 garLoopResultBuilder]: For program point L58(lines 58 74) no Hoare annotation was computed. [2023-11-19 04:13:09,438 INFO L899 garLoopResultBuilder]: For program point __ieee754_logf_returnLabel#1(lines 22 98) no Hoare annotation was computed. [2023-11-19 04:13:09,438 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2023-11-19 04:13:09,438 INFO L895 garLoopResultBuilder]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2023-11-19 04:13:09,438 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 66) no Hoare annotation was computed. [2023-11-19 04:13:09,439 INFO L899 garLoopResultBuilder]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2023-11-19 04:13:09,439 INFO L895 garLoopResultBuilder]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2023-11-19 04:13:09,439 INFO L899 garLoopResultBuilder]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2023-11-19 04:13:09,439 INFO L899 garLoopResultBuilder]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2023-11-19 04:13:09,439 INFO L895 garLoopResultBuilder]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2023-11-19 04:13:09,440 INFO L899 garLoopResultBuilder]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2023-11-19 04:13:09,440 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 178) no Hoare annotation was computed. [2023-11-19 04:13:09,440 INFO L899 garLoopResultBuilder]: For program point L68(lines 68 73) no Hoare annotation was computed. [2023-11-19 04:13:09,440 INFO L899 garLoopResultBuilder]: For program point __ieee754_log10f_returnLabel#1(lines 107 144) no Hoare annotation was computed. [2023-11-19 04:13:09,440 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2023-11-19 04:13:09,444 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 04:13:09,446 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:13:09,458 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated [2023-11-19 04:13:09,459 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-19 04:13:09,460 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~32(~x~0, ~to_fp~32(currentRoundingMode, 0bv32))) could not be translated [2023-11-19 04:13:09,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~32(~x, ~to_fp~32(currentRoundingMode, 0bv32))) could not be translated [2023-11-19 04:13:09,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-19 04:13:09,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~32(~x~0, ~to_fp~32(currentRoundingMode, 0bv32))) could not be translated [2023-11-19 04:13:09,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:13:09 BoogieIcfgContainer [2023-11-19 04:13:09,462 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:13:09,463 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:13:09,463 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:13:09,463 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:13:09,464 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:13:00" (3/4) ... [2023-11-19 04:13:09,466 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:13:09,478 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-19 04:13:09,479 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-19 04:13:09,480 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:13:09,480 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:13:09,597 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:13:09,597 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:13:09,597 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:13:09,598 INFO L158 Benchmark]: Toolchain (without parser) took 29631.01ms. Allocated memory is still 100.7MB. Free memory was 75.8MB in the beginning and 49.8MB in the end (delta: 26.0MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2023-11-19 04:13:09,598 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 75.5MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:13:09,599 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.65ms. Allocated memory is still 100.7MB. Free memory was 75.5MB in the beginning and 61.3MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:13:09,599 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.89ms. Allocated memory is still 100.7MB. Free memory was 61.3MB in the beginning and 58.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:13:09,600 INFO L158 Benchmark]: Boogie Preprocessor took 77.50ms. Allocated memory is still 100.7MB. Free memory was 58.9MB in the beginning and 56.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:13:09,600 INFO L158 Benchmark]: RCFGBuilder took 19837.74ms. Allocated memory is still 100.7MB. Free memory was 56.3MB in the beginning and 60.7MB in the end (delta: -4.4MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2023-11-19 04:13:09,601 INFO L158 Benchmark]: TraceAbstraction took 9084.65ms. Allocated memory is still 100.7MB. Free memory was 59.8MB in the beginning and 56.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2023-11-19 04:13:09,601 INFO L158 Benchmark]: Witness Printer took 134.83ms. Allocated memory is still 100.7MB. Free memory was 56.6MB in the beginning and 49.8MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 04:13:09,603 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 75.5MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 429.65ms. Allocated memory is still 100.7MB. Free memory was 75.5MB in the beginning and 61.3MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.89ms. Allocated memory is still 100.7MB. Free memory was 61.3MB in the beginning and 58.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.50ms. Allocated memory is still 100.7MB. Free memory was 58.9MB in the beginning and 56.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 19837.74ms. Allocated memory is still 100.7MB. Free memory was 56.3MB in the beginning and 60.7MB in the end (delta: -4.4MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9084.65ms. Allocated memory is still 100.7MB. Free memory was 59.8MB in the beginning and 56.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Witness Printer took 134.83ms. Allocated memory is still 100.7MB. Free memory was 56.6MB in the beginning and 49.8MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~32(~x~0, ~to_fp~32(currentRoundingMode, 0bv32))) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~32(~x, ~to_fp~32(currentRoundingMode, 0bv32))) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~32(~x~0, ~to_fp~32(currentRoundingMode, 0bv32))) could not be translated * 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: 176]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 267 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 115 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 152 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 9 NumberOfFragments, 42 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 11 QuantifiedInterpolants, 245 SizeOfPredicates, 15 NumberOfNonLiveVariables, 255 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 152]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-19 04:13:09,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0b3757-b6ec-42c2-a499-eec433404fc9/bin/utaipan-verify-t7M7D8N6sZ/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