./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje --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 9e271d51a4895d6829627c8d6a2b55a420fbf6e6ae6e508e3db072a395850af3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:44:23,535 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:44:23,643 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:44:23,653 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:44:23,654 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:44:23,698 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:44:23,699 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:44:23,700 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:44:23,700 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:44:23,702 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:44:23,702 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:44:23,702 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:44:23,703 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:44:23,703 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:44:23,706 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:44:23,706 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:44:23,707 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:44:23,707 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:44:23,707 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:44:23,707 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:44:23,711 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:44:23,713 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:44:23,713 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:44:23,713 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:44:23,714 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:44:23,714 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:44:23,714 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:44:23,714 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:44:23,715 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:44:23,715 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:44:23,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:44:23,717 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:44:23,717 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:44:23,718 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:44:23,718 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:44:23,718 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:44:23,718 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:44:23,719 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:44:23,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:44:23,719 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:44:23,719 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:44:23,720 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:44:23,720 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:44:23,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:44:23,721 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:44:23,721 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:44:23,721 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:44:23,722 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_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e271d51a4895d6829627c8d6a2b55a420fbf6e6ae6e508e3db072a395850af3 [2024-11-09 04:44:24,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:44:24,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:44:24,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:44:24,087 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:44:24,088 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:44:24,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c Unable to find full path for "g++" [2024-11-09 04:44:26,353 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:44:26,545 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:44:26,545 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2024-11-09 04:44:26,553 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/data/219037a77/b46271b54e074e618def9007ff5d34da/FLAGfd4305355 [2024-11-09 04:44:26,947 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/data/219037a77/b46271b54e074e618def9007ff5d34da [2024-11-09 04:44:26,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:44:26,954 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:44:26,955 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:44:26,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:44:26,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:44:26,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:44:26" (1/1) ... [2024-11-09 04:44:26,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19cd0786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:26, skipping insertion in model container [2024-11-09 04:44:26,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:44:26" (1/1) ... [2024-11-09 04:44:26,989 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:44:27,247 WARN L250 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_41039df5-1f07-409f-a357-56dc7a423e3f/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2024-11-09 04:44:27,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:44:27,267 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:44:27,292 WARN L250 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_41039df5-1f07-409f-a357-56dc7a423e3f/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2024-11-09 04:44:27,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:44:27,311 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:44:27,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:27 WrapperNode [2024-11-09 04:44:27,312 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:44:27,313 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:44:27,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:44:27,314 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:44:27,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:27" (1/1) ... [2024-11-09 04:44:27,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:27" (1/1) ... [2024-11-09 04:44:27,346 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2024-11-09 04:44:27,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:44:27,347 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:44:27,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:44:27,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:44:27,356 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:27" (1/1) ... [2024-11-09 04:44:27,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:27" (1/1) ... [2024-11-09 04:44:27,358 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:27" (1/1) ... [2024-11-09 04:44:27,358 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:27" (1/1) ... [2024-11-09 04:44:27,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:27" (1/1) ... [2024-11-09 04:44:27,364 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:27" (1/1) ... [2024-11-09 04:44:27,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:27" (1/1) ... [2024-11-09 04:44:27,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:27" (1/1) ... [2024-11-09 04:44:27,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:44:27,372 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:44:27,372 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:44:27,372 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:44:27,373 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:27" (1/1) ... [2024-11-09 04:44:27,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:44:27,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:44:27,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:44:27,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:44:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:44:27,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:44:27,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:44:27,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:44:27,527 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:44:27,529 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:44:27,621 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 04:44:27,621 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:44:27,655 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:44:27,656 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:44:27,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:44:27 BoogieIcfgContainer [2024-11-09 04:44:27,657 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:44:27,660 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:44:27,660 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:44:27,664 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:44:27,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:44:26" (1/3) ... [2024-11-09 04:44:27,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a447712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:44:27, skipping insertion in model container [2024-11-09 04:44:27,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:27" (2/3) ... [2024-11-09 04:44:27,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a447712 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:44:27, skipping insertion in model container [2024-11-09 04:44:27,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:44:27" (3/3) ... [2024-11-09 04:44:27,668 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2024-11-09 04:44:27,687 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:44:27,687 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:44:27,750 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:44:27,757 INFO L333 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, 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;@29bfff31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:44:27,758 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:44:27,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2024-11-09 04:44:27,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 04:44:27,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:44:27,769 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 04:44:27,770 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:44:27,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:44:27,777 INFO L85 PathProgramCache]: Analyzing trace with hash 44367, now seen corresponding path program 1 times [2024-11-09 04:44:27,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:44:27,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765209235] [2024-11-09 04:44:27,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:44:27,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:44:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:44:27,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:44:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:44:27,901 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 04:44:27,904 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 04:44:27,905 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:44:27,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:44:27,915 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 04:44:27,940 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:44:27,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:44:27 BoogieIcfgContainer [2024-11-09 04:44:27,946 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:44:27,946 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:44:27,947 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:44:27,947 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:44:27,948 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:44:27" (3/4) ... [2024-11-09 04:44:27,951 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 04:44:27,952 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:44:27,953 INFO L158 Benchmark]: Toolchain (without parser) took 1000.88ms. Allocated memory is still 155.2MB. Free memory was 115.5MB in the beginning and 76.2MB in the end (delta: 39.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-09 04:44:27,954 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 155.2MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:44:27,954 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.59ms. Allocated memory is still 155.2MB. Free memory was 115.0MB in the beginning and 102.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 04:44:27,955 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.00ms. Allocated memory is still 155.2MB. Free memory was 102.4MB in the beginning and 101.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:44:27,956 INFO L158 Benchmark]: Boogie Preprocessor took 23.93ms. Allocated memory is still 155.2MB. Free memory was 101.4MB in the beginning and 100.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:44:27,956 INFO L158 Benchmark]: RCFGBuilder took 285.59ms. Allocated memory is still 155.2MB. Free memory was 100.3MB in the beginning and 90.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 04:44:27,957 INFO L158 Benchmark]: TraceAbstraction took 285.76ms. Allocated memory is still 155.2MB. Free memory was 89.8MB in the beginning and 76.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 04:44:27,958 INFO L158 Benchmark]: Witness Printer took 5.64ms. Allocated memory is still 155.2MB. Free memory was 76.7MB in the beginning and 76.2MB in the end (delta: 530.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:44:27,961 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 155.2MB. Free memory is still 100.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.59ms. Allocated memory is still 155.2MB. Free memory was 115.0MB in the beginning and 102.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.00ms. Allocated memory is still 155.2MB. Free memory was 102.4MB in the beginning and 101.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.93ms. Allocated memory is still 155.2MB. Free memory was 101.4MB in the beginning and 100.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 285.59ms. Allocated memory is still 155.2MB. Free memory was 100.3MB in the beginning and 90.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 285.76ms. Allocated memory is still 155.2MB. Free memory was 89.8MB in the beginning and 76.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.64ms. Allocated memory is still 155.2MB. Free memory was 76.7MB in the beginning and 76.2MB in the end (delta: 530.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 12]: 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 12, overapproximation of someBinaryArithmeticFLOAToperation at line 10, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L6] float f = 0x1.9e0c22p-101f; [L7] float g = -0x1.3c9014p-50f; [L8] float target = -0x1p-149f; [L10] float result = f * g; [L12] COND TRUE !(result == target) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2024-11-09 04:44:27,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje --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 9e271d51a4895d6829627c8d6a2b55a420fbf6e6ae6e508e3db072a395850af3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:44:30,413 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:44:30,501 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 04:44:30,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:44:30,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:44:30,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:44:30,545 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:44:30,546 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:44:30,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:44:30,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:44:30,549 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:44:30,549 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:44:30,550 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:44:30,550 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:44:30,550 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:44:30,551 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:44:30,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:44:30,552 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:44:30,552 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:44:30,553 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:44:30,553 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:44:30,556 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:44:30,556 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:44:30,556 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:44:30,557 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:44:30,557 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 04:44:30,557 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:44:30,558 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 04:44:30,558 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:44:30,558 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:44:30,558 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:44:30,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:44:30,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:44:30,559 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:44:30,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:44:30,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:44:30,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:44:30,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:44:30,561 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:44:30,561 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 04:44:30,562 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 04:44:30,564 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:44:30,564 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:44:30,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e271d51a4895d6829627c8d6a2b55a420fbf6e6ae6e508e3db072a395850af3 [2024-11-09 04:44:30,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:44:30,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:44:30,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:44:30,987 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:44:30,988 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:44:30,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c Unable to find full path for "g++" [2024-11-09 04:44:32,979 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:44:33,237 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:44:33,240 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2024-11-09 04:44:33,249 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/data/ecd3f2964/641680b83ef84d508afc93242d911b92/FLAGc93bf1155 [2024-11-09 04:44:33,267 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/data/ecd3f2964/641680b83ef84d508afc93242d911b92 [2024-11-09 04:44:33,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:44:33,271 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:44:33,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:44:33,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:44:33,282 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:44:33,282 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:44:33" (1/1) ... [2024-11-09 04:44:33,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59bad6ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:33, skipping insertion in model container [2024-11-09 04:44:33,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:44:33" (1/1) ... [2024-11-09 04:44:33,310 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:44:33,553 WARN L250 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_41039df5-1f07-409f-a357-56dc7a423e3f/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2024-11-09 04:44:33,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:44:33,580 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:44:33,600 WARN L250 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_41039df5-1f07-409f-a357-56dc7a423e3f/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c[440,453] [2024-11-09 04:44:33,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:44:33,625 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:44:33,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:33 WrapperNode [2024-11-09 04:44:33,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:44:33,627 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:44:33,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:44:33,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:44:33,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:33" (1/1) ... [2024-11-09 04:44:33,648 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:33" (1/1) ... [2024-11-09 04:44:33,678 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2024-11-09 04:44:33,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:44:33,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:44:33,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:44:33,680 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:44:33,690 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:33" (1/1) ... [2024-11-09 04:44:33,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:33" (1/1) ... [2024-11-09 04:44:33,694 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:33" (1/1) ... [2024-11-09 04:44:33,694 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:33" (1/1) ... [2024-11-09 04:44:33,709 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:33" (1/1) ... [2024-11-09 04:44:33,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:33" (1/1) ... [2024-11-09 04:44:33,713 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:33" (1/1) ... [2024-11-09 04:44:33,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:33" (1/1) ... [2024-11-09 04:44:33,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:44:33,720 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:44:33,720 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:44:33,720 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:44:33,721 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:33" (1/1) ... [2024-11-09 04:44:33,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:44:33,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:44:33,755 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:44:33,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:44:33,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:44:33,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:44:33,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:44:33,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 04:44:33,858 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:44:33,861 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:44:34,222 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-09 04:44:34,222 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:44:34,233 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:44:34,234 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:44:34,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:44:34 BoogieIcfgContainer [2024-11-09 04:44:34,235 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:44:34,237 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:44:34,237 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:44:34,241 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:44:34,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:44:33" (1/3) ... [2024-11-09 04:44:34,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14aa1b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:44:34, skipping insertion in model container [2024-11-09 04:44:34,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:44:33" (2/3) ... [2024-11-09 04:44:34,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14aa1b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:44:34, skipping insertion in model container [2024-11-09 04:44:34,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:44:34" (3/3) ... [2024-11-09 04:44:34,244 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2024-11-09 04:44:34,270 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:44:34,270 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:44:34,349 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:44:34,358 INFO L333 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, 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;@4a4229f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:44:34,358 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:44:34,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 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) [2024-11-09 04:44:34,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 04:44:34,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:44:34,372 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 04:44:34,373 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:44:34,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:44:34,383 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2024-11-09 04:44:34,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:44:34,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19713730] [2024-11-09 04:44:34,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:44:34,401 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 [2024-11-09 04:44:34,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:44:34,404 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 04:44:34,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:44:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:44:34,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 04:44:34,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:44:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:44:34,692 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:44:34,693 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:44:34,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [19713730] [2024-11-09 04:44:34,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [19713730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:44:34,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:44:34,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:44:34,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775061228] [2024-11-09 04:44:34,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:44:34,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:44:34,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:44:34,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:44:34,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:44:34,744 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 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) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-09 04:44:34,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:44:34,874 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2024-11-09 04:44:34,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:44:34,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-11-09 04:44:34,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:44:34,885 INFO L225 Difference]: With dead ends: 13 [2024-11-09 04:44:34,886 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:44:34,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:44:34,896 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 7 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 [2024-11-09 04:44:34,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 7 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:44:34,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:44:34,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:44:34,926 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) [2024-11-09 04:44:34,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:44:34,928 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2024-11-09 04:44:34,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:44:34,929 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:44:34,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-09 04:44:34,930 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:44:34,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:44:34,934 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:44:34,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:44:35,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:44:35,142 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 04:44:35,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 04:44:35,154 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:44:35,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:44:35 BoogieIcfgContainer [2024-11-09 04:44:35,166 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:44:35,167 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:44:35,167 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:44:35,168 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:44:35,168 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:44:34" (3/4) ... [2024-11-09 04:44:35,173 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 04:44:35,185 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-09 04:44:35,186 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 04:44:35,186 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 04:44:35,187 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 04:44:35,187 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 04:44:35,286 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 04:44:35,286 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 04:44:35,286 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:44:35,287 INFO L158 Benchmark]: Toolchain (without parser) took 2015.93ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 52.1MB in the beginning and 62.8MB in the end (delta: -10.8MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2024-11-09 04:44:35,290 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 75.5MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:44:35,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.56ms. Allocated memory is still 75.5MB. Free memory was 51.9MB in the beginning and 38.7MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 04:44:35,291 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.94ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 38.5MB in the beginning and 75.8MB in the end (delta: -37.3MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2024-11-09 04:44:35,291 INFO L158 Benchmark]: Boogie Preprocessor took 39.21ms. Allocated memory is still 96.5MB. Free memory was 75.8MB in the beginning and 74.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:44:35,292 INFO L158 Benchmark]: RCFGBuilder took 515.07ms. Allocated memory is still 96.5MB. Free memory was 74.8MB in the beginning and 65.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 04:44:35,292 INFO L158 Benchmark]: TraceAbstraction took 929.45ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 67.0MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:44:35,293 INFO L158 Benchmark]: Witness Printer took 119.20ms. Allocated memory is still 96.5MB. Free memory was 67.0MB in the beginning and 62.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 04:44:35,300 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 75.5MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.56ms. Allocated memory is still 75.5MB. Free memory was 51.9MB in the beginning and 38.7MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.94ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 38.5MB in the beginning and 75.8MB in the end (delta: -37.3MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.21ms. Allocated memory is still 96.5MB. Free memory was 75.8MB in the beginning and 74.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 515.07ms. Allocated memory is still 96.5MB. Free memory was 74.8MB in the beginning and 65.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 929.45ms. Allocated memory is still 96.5MB. Free memory was 64.7MB in the beginning and 67.0MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 119.20ms. Allocated memory is still 96.5MB. Free memory was 67.0MB in the beginning and 62.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 1 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 04:44:35,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41039df5-1f07-409f-a357-56dc7a423e3f/bin/utaipan-verify-YMUCfTKeje/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