./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1072d.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_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1072d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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 4e7e90799b98dede4965ccf0fb7fd31a9423f1bb2f54cb6cc84937807506db5a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:50:08,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:50:08,308 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:50:08,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:50:08,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:50:08,339 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:50:08,340 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:50:08,340 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:50:08,341 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:50:08,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:50:08,342 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:50:08,346 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:50:08,346 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:50:08,347 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:50:08,347 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:50:08,348 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:50:08,348 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:50:08,351 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:50:08,351 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:50:08,351 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:50:08,352 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:50:08,356 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:50:08,356 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:50:08,357 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:50:08,357 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:50:08,357 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:50:08,358 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:50:08,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:50:08,358 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:50:08,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:50:08,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:50:08,363 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:50:08,364 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:50:08,364 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:50:08,364 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:50:08,365 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:50:08,365 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:50:08,365 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:50:08,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:50:08,366 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:50:08,366 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:50:08,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:50:08,369 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:50:08,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:50:08,370 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:50:08,370 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:50:08,370 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:50:08,370 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_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e7e90799b98dede4965ccf0fb7fd31a9423f1bb2f54cb6cc84937807506db5a [2024-11-09 04:50:08,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:50:08,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:50:08,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:50:08,646 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:50:08,646 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:50:08,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/float-newlib/double_req_bl_1072d.c Unable to find full path for "g++" [2024-11-09 04:50:10,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:50:10,826 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:50:10,826 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/sv-benchmarks/c/float-newlib/double_req_bl_1072d.c [2024-11-09 04:50:10,835 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/data/4393e9636/f5bfea020510428a9942e41124dd923d/FLAG7fed76439 [2024-11-09 04:50:11,228 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/data/4393e9636/f5bfea020510428a9942e41124dd923d [2024-11-09 04:50:11,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:50:11,232 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:50:11,233 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:50:11,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:50:11,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:50:11,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:50:11" (1/1) ... [2024-11-09 04:50:11,245 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6da43e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:11, skipping insertion in model container [2024-11-09 04:50:11,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:50:11" (1/1) ... [2024-11-09 04:50:11,274 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:50:11,516 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_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/sv-benchmarks/c/float-newlib/double_req_bl_1072d.c[2254,2267] [2024-11-09 04:50:11,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:50:11,538 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:50:11,579 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_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/sv-benchmarks/c/float-newlib/double_req_bl_1072d.c[2254,2267] [2024-11-09 04:50:11,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:50:11,602 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:50:11,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:11 WrapperNode [2024-11-09 04:50:11,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:50:11,605 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:50:11,605 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:50:11,605 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:50:11,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:11" (1/1) ... [2024-11-09 04:50:11,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:11" (1/1) ... [2024-11-09 04:50:11,656 INFO L138 Inliner]: procedures = 17, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 179 [2024-11-09 04:50:11,656 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:50:11,657 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:50:11,658 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:50:11,658 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:50:11,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:11" (1/1) ... [2024-11-09 04:50:11,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:11" (1/1) ... [2024-11-09 04:50:11,672 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:11" (1/1) ... [2024-11-09 04:50:11,673 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:11" (1/1) ... [2024-11-09 04:50:11,684 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:11" (1/1) ... [2024-11-09 04:50:11,689 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:11" (1/1) ... [2024-11-09 04:50:11,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:11" (1/1) ... [2024-11-09 04:50:11,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:11" (1/1) ... [2024-11-09 04:50:11,696 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:50:11,697 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:50:11,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:50:11,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:50:11,699 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:11" (1/1) ... [2024-11-09 04:50:11,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:50:11,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:50:11,746 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:50:11,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:50:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:50:11,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:50:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:50:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-09 04:50:11,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:50:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-09 04:50:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:50:11,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:50:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:50:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:50:11,911 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:50:11,915 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:50:12,485 INFO L? ?]: Removed 33 outVars from TransFormulas that were not future-live. [2024-11-09 04:50:12,485 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:50:12,891 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:50:12,892 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-09 04:50:12,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:50:12 BoogieIcfgContainer [2024-11-09 04:50:12,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:50:12,900 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:50:12,900 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:50:12,904 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:50:12,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:50:11" (1/3) ... [2024-11-09 04:50:12,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ad88f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:50:12, skipping insertion in model container [2024-11-09 04:50:12,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:11" (2/3) ... [2024-11-09 04:50:12,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ad88f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:50:12, skipping insertion in model container [2024-11-09 04:50:12,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:50:12" (3/3) ... [2024-11-09 04:50:12,926 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072d.c [2024-11-09 04:50:12,948 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:50:12,948 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:50:13,001 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:50:13,008 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;@554c4ed3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:50:13,009 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:50:13,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 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 04:50:13,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 04:50:13,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:13,019 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:50:13,020 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:50:13,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:13,026 INFO L85 PathProgramCache]: Analyzing trace with hash -468632023, now seen corresponding path program 1 times [2024-11-09 04:50:13,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:50:13,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198683170] [2024-11-09 04:50:13,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:13,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:50:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:13,211 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 04:50:13,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:50:13,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198683170] [2024-11-09 04:50:13,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198683170] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:50:13,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:50:13,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:50:13,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665647022] [2024-11-09 04:50:13,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:50:13,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:50:13,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:50:13,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:50:13,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:50:13,253 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 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) [2024-11-09 04:50:13,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:13,301 INFO L93 Difference]: Finished difference Result 47 states and 75 transitions. [2024-11-09 04:50:13,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:50:13,304 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 [2024-11-09 04:50:13,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:13,313 INFO L225 Difference]: With dead ends: 47 [2024-11-09 04:50:13,314 INFO L226 Difference]: Without dead ends: 22 [2024-11-09 04:50:13,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:50:13,321 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:13,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:50:13,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-09 04:50:13,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-09 04:50:13,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:50:13,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2024-11-09 04:50:13,357 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 11 [2024-11-09 04:50:13,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:13,358 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2024-11-09 04:50:13,358 INFO L472 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) [2024-11-09 04:50:13,358 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-11-09 04:50:13,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 04:50:13,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:13,359 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:50:13,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:50:13,360 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:50:13,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:13,361 INFO L85 PathProgramCache]: Analyzing trace with hash -280646796, now seen corresponding path program 1 times [2024-11-09 04:50:13,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:50:13,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970570289] [2024-11-09 04:50:13,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:13,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:50:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:50:13,496 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:50:13,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:50:13,692 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 04:50:13,693 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 04:50:13,695 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:50:13,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:50:13,701 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 04:50:13,727 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:50:13,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:50:13 BoogieIcfgContainer [2024-11-09 04:50:13,734 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:50:13,735 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:50:13,735 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:50:13,736 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:50:13,736 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:50:12" (3/4) ... [2024-11-09 04:50:13,739 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 04:50:13,741 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:50:13,742 INFO L158 Benchmark]: Toolchain (without parser) took 2510.09ms. Allocated memory was 174.1MB in the beginning and 224.4MB in the end (delta: 50.3MB). Free memory was 135.2MB in the beginning and 146.4MB in the end (delta: -11.2MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2024-11-09 04:50:13,744 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 63.5MB in the beginning and 63.4MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:50:13,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.30ms. Allocated memory is still 174.1MB. Free memory was 135.2MB in the beginning and 121.6MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 04:50:13,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.20ms. Allocated memory is still 174.1MB. Free memory was 121.6MB in the beginning and 119.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:50:13,749 INFO L158 Benchmark]: Boogie Preprocessor took 39.18ms. Allocated memory is still 174.1MB. Free memory was 119.5MB in the beginning and 117.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:50:13,749 INFO L158 Benchmark]: RCFGBuilder took 1197.88ms. Allocated memory is still 174.1MB. Free memory was 117.4MB in the beginning and 140.6MB in the end (delta: -23.2MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2024-11-09 04:50:13,750 INFO L158 Benchmark]: TraceAbstraction took 834.97ms. Allocated memory was 174.1MB in the beginning and 224.4MB in the end (delta: 50.3MB). Free memory was 139.9MB in the beginning and 147.5MB in the end (delta: -7.6MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2024-11-09 04:50:13,751 INFO L158 Benchmark]: Witness Printer took 6.15ms. Allocated memory is still 224.4MB. Free memory was 147.5MB in the beginning and 146.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:50:13,754 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 63.5MB in the beginning and 63.4MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.30ms. Allocated memory is still 174.1MB. Free memory was 135.2MB in the beginning and 121.6MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.20ms. Allocated memory is still 174.1MB. Free memory was 121.6MB in the beginning and 119.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.18ms. Allocated memory is still 174.1MB. Free memory was 119.5MB in the beginning and 117.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1197.88ms. Allocated memory is still 174.1MB. Free memory was 117.4MB in the beginning and 140.6MB in the end (delta: -23.2MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. * TraceAbstraction took 834.97ms. Allocated memory was 174.1MB in the beginning and 224.4MB in the end (delta: 50.3MB). Free memory was 139.9MB in the beginning and 147.5MB in the end (delta: -7.6MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. * Witness Printer took 6.15ms. Allocated memory is still 224.4MB. Free memory was 147.5MB in the beginning and 146.4MB 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.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: 91]: 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 bitwiseOr at line 74, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51, overapproximation of bitwiseAnd at line 31. Possible FailurePath: [L86] double x = -1.0 / 0.0; [L87] CALL, EXPR trunc_double(x) [L20] int signbit; [L21] int msw; [L22] unsigned int lsw; [L23] int exponent_less_1023; [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (msw) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lsw) = ew_u.parts.lsw [L30] signbit = msw & 0x80000000 [L31] EXPR msw & 0x7ff00000 [L31] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L32] COND FALSE !(exponent_less_1023 < 20) VAL [exponent_less_1023=1024, lsw=4294967296, msw=-1, signbit=-2147483648, x=4294967307] [L49] COND TRUE exponent_less_1023 > 51 VAL [exponent_less_1023=1024, lsw=4294967296, msw=-1, signbit=-2147483648, x=4294967307] [L50] COND TRUE exponent_less_1023 == 1024 [L51] return x + x; VAL [lsw=4294967296, msw=-1, signbit=-2147483648, x=4294967307] [L87] RET, EXPR trunc_double(x) [L87] double res = trunc_double(x); [L90] CALL, EXPR isinf_double(res) [L66] __int32_t hx, lx; VAL [x=4294967308] [L68] ieee_double_shape_type ew_u; [L69] ew_u.value = (x) [L70] EXPR ew_u.parts.msw [L70] (hx) = ew_u.parts.msw [L71] EXPR ew_u.parts.lsw [L71] (lx) = ew_u.parts.lsw [L73] hx &= 0x7fffffff [L74] EXPR lx | (-lx) [L74] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L75] hx = 0x7ff00000 - hx [L76] EXPR hx | (-hx) [L76] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L90] RET, EXPR isinf_double(res) [L90] COND TRUE !isinf_double(res) [L91] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 21 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 04:50:13,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1072d.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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 4e7e90799b98dede4965ccf0fb7fd31a9423f1bb2f54cb6cc84937807506db5a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:50:16,409 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:50:16,509 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 04:50:16,518 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:50:16,518 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:50:16,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:50:16,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:50:16,574 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:50:16,575 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:50:16,577 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:50:16,577 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:50:16,578 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:50:16,578 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:50:16,578 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:50:16,579 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:50:16,581 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:50:16,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:50:16,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:50:16,583 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:50:16,583 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:50:16,583 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:50:16,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:50:16,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:50:16,588 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:50:16,589 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:50:16,590 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 04:50:16,590 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:50:16,590 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 04:50:16,591 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:50:16,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:50:16,591 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:50:16,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:50:16,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:50:16,593 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:50:16,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:50:16,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:50:16,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:50:16,594 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:50:16,594 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:50:16,594 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 04:50:16,595 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 04:50:16,597 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:50:16,597 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:50:16,597 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_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e7e90799b98dede4965ccf0fb7fd31a9423f1bb2f54cb6cc84937807506db5a [2024-11-09 04:50:16,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:50:17,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:50:17,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:50:17,033 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:50:17,034 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:50:17,035 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/float-newlib/double_req_bl_1072d.c Unable to find full path for "g++" [2024-11-09 04:50:19,258 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:50:19,498 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:50:19,498 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/sv-benchmarks/c/float-newlib/double_req_bl_1072d.c [2024-11-09 04:50:19,506 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/data/328762552/74a4f64173d6435e92124a53172477de/FLAG3460f75d3 [2024-11-09 04:50:19,843 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/data/328762552/74a4f64173d6435e92124a53172477de [2024-11-09 04:50:19,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:50:19,846 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:50:19,848 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:50:19,848 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:50:19,854 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:50:19,855 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:50:19" (1/1) ... [2024-11-09 04:50:19,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b3cda37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:19, skipping insertion in model container [2024-11-09 04:50:19,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:50:19" (1/1) ... [2024-11-09 04:50:19,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:50:20,099 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_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/sv-benchmarks/c/float-newlib/double_req_bl_1072d.c[2254,2267] [2024-11-09 04:50:20,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:50:20,130 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:50:20,161 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_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/sv-benchmarks/c/float-newlib/double_req_bl_1072d.c[2254,2267] [2024-11-09 04:50:20,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:50:20,193 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:50:20,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:20 WrapperNode [2024-11-09 04:50:20,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:50:20,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:50:20,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:50:20,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:50:20,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:20" (1/1) ... [2024-11-09 04:50:20,216 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:20" (1/1) ... [2024-11-09 04:50:20,250 INFO L138 Inliner]: procedures = 20, calls = 34, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 110 [2024-11-09 04:50:20,254 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:50:20,255 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:50:20,255 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:50:20,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:50:20,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:20" (1/1) ... [2024-11-09 04:50:20,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:20" (1/1) ... [2024-11-09 04:50:20,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:20" (1/1) ... [2024-11-09 04:50:20,275 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:20" (1/1) ... [2024-11-09 04:50:20,292 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:20" (1/1) ... [2024-11-09 04:50:20,300 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:20" (1/1) ... [2024-11-09 04:50:20,305 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:20" (1/1) ... [2024-11-09 04:50:20,307 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:20" (1/1) ... [2024-11-09 04:50:20,314 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:50:20,318 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:50:20,318 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:50:20,319 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:50:20,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:20" (1/1) ... [2024-11-09 04:50:20,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:50:20,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:50:20,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:50:20,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:50:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:50:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2024-11-09 04:50:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2024-11-09 04:50:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 04:50:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:50:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 04:50:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:50:20,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:50:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 04:50:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:50:20,540 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:50:20,560 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:50:20,889 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-09 04:50:20,889 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:50:20,904 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:50:20,905 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-09 04:50:20,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:50:20 BoogieIcfgContainer [2024-11-09 04:50:20,906 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:50:20,908 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:50:20,908 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:50:20,912 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:50:20,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:50:19" (1/3) ... [2024-11-09 04:50:20,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f331bea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:50:20, skipping insertion in model container [2024-11-09 04:50:20,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:50:20" (2/3) ... [2024-11-09 04:50:20,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f331bea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:50:20, skipping insertion in model container [2024-11-09 04:50:20,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:50:20" (3/3) ... [2024-11-09 04:50:20,918 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072d.c [2024-11-09 04:50:20,935 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:50:20,936 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:50:20,994 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:50:21,001 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;@5ea0b955, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:50:21,001 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:50:21,005 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.64) internal successors, (41), 26 states have internal predecessors, (41), 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 04:50:21,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 04:50:21,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:21,013 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:50:21,013 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:50:21,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:21,019 INFO L85 PathProgramCache]: Analyzing trace with hash 153638809, now seen corresponding path program 1 times [2024-11-09 04:50:21,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:50:21,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515791046] [2024-11-09 04:50:21,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:21,034 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 04:50:21,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:50:21,038 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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 04:50:21,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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 04:50:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:21,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 04:50:21,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:50:21,208 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 04:50:21,208 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:50:21,209 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:50:21,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515791046] [2024-11-09 04:50:21,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [515791046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:50:21,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:50:21,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:50:21,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026047945] [2024-11-09 04:50:21,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:50:21,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 04:50:21,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:50:21,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 04:50:21,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:50:21,247 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.64) internal successors, (41), 26 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:50:21,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:21,269 INFO L93 Difference]: Finished difference Result 52 states and 80 transitions. [2024-11-09 04:50:21,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 04:50:21,271 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-09 04:50:21,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:21,280 INFO L225 Difference]: With dead ends: 52 [2024-11-09 04:50:21,280 INFO L226 Difference]: Without dead ends: 24 [2024-11-09 04:50:21,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 04:50:21,287 INFO L432 NwaCegarLoop]: 30 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, 30 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 [2024-11-09 04:50:21,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:50:21,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-09 04:50:21,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-09 04:50:21,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 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 04:50:21,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2024-11-09 04:50:21,333 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 13 [2024-11-09 04:50:21,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:21,335 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2024-11-09 04:50:21,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:50:21,336 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-11-09 04:50:21,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 04:50:21,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:21,339 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:50:21,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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 04:50:21,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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 04:50:21,540 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:50:21,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:21,541 INFO L85 PathProgramCache]: Analyzing trace with hash -3715261, now seen corresponding path program 1 times [2024-11-09 04:50:21,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:50:21,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1713228166] [2024-11-09 04:50:21,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:21,543 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 04:50:21,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:50:21,546 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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 04:50:21,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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 (3)] Waiting until timeout for monitored process [2024-11-09 04:50:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:21,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 04:50:21,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:50:22,289 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 04:50:22,290 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:50:22,290 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:50:22,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1713228166] [2024-11-09 04:50:22,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1713228166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:50:22,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:50:22,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:50:22,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129089414] [2024-11-09 04:50:22,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:50:22,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 04:50:22,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:50:22,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 04:50:22,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-09 04:50:22,297 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 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 04:50:22,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:22,892 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2024-11-09 04:50:22,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 04:50:22,893 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 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 15 [2024-11-09 04:50:22,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:22,894 INFO L225 Difference]: With dead ends: 33 [2024-11-09 04:50:22,895 INFO L226 Difference]: Without dead ends: 23 [2024-11-09 04:50:22,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-09 04:50:22,899 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 29 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:22,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 120 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:50:22,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-09 04:50:22,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-09 04:50:22,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 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 04:50:22,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-11-09 04:50:22,910 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 15 [2024-11-09 04:50:22,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:22,911 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-11-09 04:50:22,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 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 04:50:22,912 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-11-09 04:50:22,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 04:50:22,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:50:22,912 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:50:22,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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 (3)] Forceful destruction successful, exit code 0 [2024-11-09 04:50:23,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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 04:50:23,113 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:50:23,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:50:23,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1574215747, now seen corresponding path program 1 times [2024-11-09 04:50:23,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:50:23,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366149286] [2024-11-09 04:50:23,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:50:23,115 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 04:50:23,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:50:23,119 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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 04:50:23,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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 (4)] Waiting until timeout for monitored process [2024-11-09 04:50:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:50:23,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 04:50:23,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:50:23,468 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 04:50:23,470 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:50:23,470 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:50:23,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366149286] [2024-11-09 04:50:23,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366149286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:50:23,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:50:23,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:50:23,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566745470] [2024-11-09 04:50:23,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:50:23,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:50:23,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:50:23,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:50:23,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:50:23,476 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 5 states, 5 states have (on average 3.4) 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) [2024-11-09 04:50:23,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:50:23,675 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2024-11-09 04:50:23,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:50:23,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) 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 [2024-11-09 04:50:23,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:50:23,678 INFO L225 Difference]: With dead ends: 23 [2024-11-09 04:50:23,678 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:50:23,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 04:50:23,679 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:50:23,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:50:23,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:50:23,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:50:23,684 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 04:50:23,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:50:23,684 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2024-11-09 04:50:23,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:50:23,685 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:50:23,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) 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) [2024-11-09 04:50:23,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:50:23,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:50:23,688 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:50:23,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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 (4)] Ended with exit code 0 [2024-11-09 04:50:23,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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 04:50:23,892 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-09 04:50:23,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 04:50:23,960 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:50:23,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:50:23 BoogieIcfgContainer [2024-11-09 04:50:23,975 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:50:23,976 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:50:23,976 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:50:23,976 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:50:23,977 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:50:20" (3/4) ... [2024-11-09 04:50:23,979 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 04:50:23,989 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-11-09 04:50:23,991 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-09 04:50:23,991 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 04:50:23,992 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 04:50:24,086 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 04:50:24,087 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 04:50:24,087 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:50:24,088 INFO L158 Benchmark]: Toolchain (without parser) took 4241.22ms. Allocated memory is still 94.4MB. Free memory was 69.6MB in the beginning and 45.7MB in the end (delta: 23.9MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2024-11-09 04:50:24,088 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:50:24,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.39ms. Allocated memory is still 94.4MB. Free memory was 69.6MB in the beginning and 55.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 04:50:24,089 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.16ms. Allocated memory is still 94.4MB. Free memory was 55.2MB in the beginning and 53.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:50:24,089 INFO L158 Benchmark]: Boogie Preprocessor took 62.80ms. Allocated memory is still 94.4MB. Free memory was 53.5MB in the beginning and 51.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:50:24,089 INFO L158 Benchmark]: RCFGBuilder took 587.56ms. Allocated memory is still 94.4MB. Free memory was 51.6MB in the beginning and 61.7MB in the end (delta: -10.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 04:50:24,090 INFO L158 Benchmark]: TraceAbstraction took 3067.24ms. Allocated memory is still 94.4MB. Free memory was 60.8MB in the beginning and 50.7MB in the end (delta: 10.1MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2024-11-09 04:50:24,090 INFO L158 Benchmark]: Witness Printer took 111.20ms. Allocated memory is still 94.4MB. Free memory was 50.7MB in the beginning and 45.7MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 04:50:24,092 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory is still 39.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.39ms. Allocated memory is still 94.4MB. Free memory was 69.6MB in the beginning and 55.5MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.16ms. Allocated memory is still 94.4MB. Free memory was 55.2MB in the beginning and 53.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.80ms. Allocated memory is still 94.4MB. Free memory was 53.5MB in the beginning and 51.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 587.56ms. Allocated memory is still 94.4MB. Free memory was 51.6MB in the beginning and 61.7MB in the end (delta: -10.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3067.24ms. Allocated memory is still 94.4MB. Free memory was 60.8MB in the beginning and 50.7MB in the end (delta: 10.1MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Witness Printer took 111.20ms. Allocated memory is still 94.4MB. Free memory was 50.7MB in the beginning and 45.7MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. 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: 91]: 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, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 157 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 105 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 52 mSDtfsCounter, 63 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 8 QuantifiedInterpolants, 423 SizeOfPredicates, 8 NumberOfNonLiveVariables, 164 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 04:50:24,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e283e6df-55c2-4d7e-95cb-3bc14bccc4b1/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