./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2 --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 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:20:55,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:20:55,815 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 11:20:55,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:20:55,825 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:20:55,865 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:20:55,866 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:20:55,866 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:20:55,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:20:55,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:20:55,871 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:20:55,871 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:20:55,872 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:20:55,872 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:20:55,872 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:20:55,873 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:20:55,873 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:20:55,873 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:20:55,874 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:20:55,874 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:20:55,874 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:20:55,879 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:20:55,879 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:20:55,880 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:20:55,880 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:20:55,880 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:20:55,881 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:20:55,881 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:20:55,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:20:55,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:20:55,882 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:20:55,882 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:20:55,882 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:20:55,883 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:20:55,883 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:20:55,884 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:20:55,884 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:20:55,884 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:20:55,885 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:20:55,885 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:20:55,885 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:20:55,886 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:20:55,886 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:20:55,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:20:55,887 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:20:55,887 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:20:55,888 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:20:55,888 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_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 [2024-11-02 11:20:56,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:20:56,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:20:56,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:20:56,220 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:20:56,220 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:20:56,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c Unable to find full path for "g++" [2024-11-02 11:20:58,338 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:20:58,511 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:20:58,511 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2024-11-02 11:20:58,519 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/data/045bfdbe1/145b9e0d39f8456fa06c3bfb4e9568e3/FLAGa8c2b9086 [2024-11-02 11:20:58,534 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/data/045bfdbe1/145b9e0d39f8456fa06c3bfb4e9568e3 [2024-11-02 11:20:58,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:20:58,540 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:20:58,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:20:58,542 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:20:58,548 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:20:58,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:20:58" (1/1) ... [2024-11-02 11:20:58,550 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66138f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:58, skipping insertion in model container [2024-11-02 11:20:58,550 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:20:58" (1/1) ... [2024-11-02 11:20:58,571 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:20:58,833 WARN L251 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_f10cab93-1d76-448f-a108-284fdf0155bd/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2024-11-02 11:20:58,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:20:58,860 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:20:58,888 WARN L251 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_f10cab93-1d76-448f-a108-284fdf0155bd/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2024-11-02 11:20:58,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:20:58,914 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:20:58,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:58 WrapperNode [2024-11-02 11:20:58,914 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:20:58,916 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:20:58,916 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:20:58,916 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:20:58,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:58" (1/1) ... [2024-11-02 11:20:58,935 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:58" (1/1) ... [2024-11-02 11:20:58,958 INFO L138 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2024-11-02 11:20:58,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:20:58,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:20:58,960 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:20:58,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:20:58,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:58" (1/1) ... [2024-11-02 11:20:58,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:58" (1/1) ... [2024-11-02 11:20:58,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:58" (1/1) ... [2024-11-02 11:20:58,973 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:58" (1/1) ... [2024-11-02 11:20:58,980 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:58" (1/1) ... [2024-11-02 11:20:58,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:58" (1/1) ... [2024-11-02 11:20:58,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:58" (1/1) ... [2024-11-02 11:20:58,987 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:58" (1/1) ... [2024-11-02 11:20:58,990 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:20:58,991 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:20:58,991 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:20:58,991 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:20:58,992 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:58" (1/1) ... [2024-11-02 11:20:58,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:20:59,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:20:59,032 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:20:59,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:20:59,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:20:59,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:20:59,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 11:20:59,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-02 11:20:59,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 11:20:59,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-02 11:20:59,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:20:59,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:20:59,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 11:20:59,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 11:20:59,207 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:20:59,210 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:20:59,493 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-02 11:20:59,494 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:20:59,706 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:20:59,706 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-02 11:20:59,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:20:59 BoogieIcfgContainer [2024-11-02 11:20:59,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:20:59,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:20:59,713 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:20:59,719 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:20:59,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:20:58" (1/3) ... [2024-11-02 11:20:59,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce44cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:20:59, skipping insertion in model container [2024-11-02 11:20:59,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:58" (2/3) ... [2024-11-02 11:20:59,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce44cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:20:59, skipping insertion in model container [2024-11-02 11:20:59,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:20:59" (3/3) ... [2024-11-02 11:20:59,725 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2024-11-02 11:20:59,746 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:20:59,746 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:20:59,804 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:20:59,811 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;@7ce0320a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:20:59,812 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:20:59,817 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:20:59,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-02 11:20:59,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:20:59,824 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:20:59,824 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:20:59,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:20:59,830 INFO L85 PathProgramCache]: Analyzing trace with hash -303150975, now seen corresponding path program 1 times [2024-11-02 11:20:59,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:20:59,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115470651] [2024-11-02 11:20:59,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:20:59,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:20:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:00,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:21:00,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:21:00,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115470651] [2024-11-02 11:21:00,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115470651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:21:00,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:21:00,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:21:00,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204962426] [2024-11-02 11:21:00,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:21:00,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 11:21:00,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:21:00,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 11:21:00,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 11:21:00,115 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-02 11:21:00,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:21:00,164 INFO L93 Difference]: Finished difference Result 25 states and 37 transitions. [2024-11-02 11:21:00,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 11:21:00,171 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-11-02 11:21:00,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:21:00,181 INFO L225 Difference]: With dead ends: 25 [2024-11-02 11:21:00,182 INFO L226 Difference]: Without dead ends: 11 [2024-11-02 11:21:00,185 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 [2024-11-02 11:21:00,192 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 11:21:00,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:21:00,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-11-02 11:21:00,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-02 11:21:00,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:21:00,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2024-11-02 11:21:00,226 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 7 [2024-11-02 11:21:00,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:21:00,227 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2024-11-02 11:21:00,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-02 11:21:00,227 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2024-11-02 11:21:00,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-02 11:21:00,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:00,228 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:00,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 11:21:00,229 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:21:00,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:00,230 INFO L85 PathProgramCache]: Analyzing trace with hash -818363173, now seen corresponding path program 1 times [2024-11-02 11:21:00,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:21:00,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246650587] [2024-11-02 11:21:00,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:00,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:21:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 11:21:00,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 11:21:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 11:21:00,450 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 11:21:00,451 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 11:21:00,452 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 11:21:00,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 11:21:00,458 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-02 11:21:00,473 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 11:21:00,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:21:00 BoogieIcfgContainer [2024-11-02 11:21:00,477 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 11:21:00,478 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 11:21:00,478 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 11:21:00,478 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 11:21:00,479 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:20:59" (3/4) ... [2024-11-02 11:21:00,482 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 11:21:00,483 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 11:21:00,484 INFO L158 Benchmark]: Toolchain (without parser) took 1943.96ms. Allocated memory is still 153.1MB. Free memory was 110.9MB in the beginning and 117.8MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:21:00,485 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:21:00,485 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.16ms. Allocated memory is still 153.1MB. Free memory was 110.9MB in the beginning and 98.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-02 11:21:00,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.29ms. Allocated memory is still 153.1MB. Free memory was 98.3MB in the beginning and 96.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 11:21:00,487 INFO L158 Benchmark]: Boogie Preprocessor took 30.58ms. Allocated memory is still 153.1MB. Free memory was 96.8MB in the beginning and 95.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:21:00,487 INFO L158 Benchmark]: RCFGBuilder took 716.04ms. Allocated memory is still 153.1MB. Free memory was 95.3MB in the beginning and 77.3MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-02 11:21:00,488 INFO L158 Benchmark]: TraceAbstraction took 764.32ms. Allocated memory is still 153.1MB. Free memory was 76.8MB in the beginning and 118.8MB in the end (delta: -42.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:21:00,488 INFO L158 Benchmark]: Witness Printer took 5.62ms. Allocated memory is still 153.1MB. Free memory was 118.8MB in the beginning and 117.8MB in the end (delta: 998.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:21:00,491 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 125.8MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.16ms. Allocated memory is still 153.1MB. Free memory was 110.9MB in the beginning and 98.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.29ms. Allocated memory is still 153.1MB. Free memory was 98.3MB in the beginning and 96.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.58ms. Allocated memory is still 153.1MB. Free memory was 96.8MB in the beginning and 95.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 716.04ms. Allocated memory is still 153.1MB. Free memory was 95.3MB in the beginning and 77.3MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 764.32ms. Allocated memory is still 153.1MB. Free memory was 76.8MB in the beginning and 118.8MB in the end (delta: -42.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.62ms. Allocated memory is still 153.1MB. Free memory was 118.8MB in the beginning and 117.8MB in the end (delta: 998.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 35, overapproximation of bitwiseOr at line 28, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L45] float x = 0.0f / 0.0f; [L46] float y = __VERIFIER_nondet_float(); [L47] CALL, EXPR copysign_float(x, y) [L15] __uint32_t ix, iy; [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (ix) = gf_u.word [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (y) [L24] EXPR gf_u.word [L24] (iy) = gf_u.word [L27] ieee_float_shape_type sf_u; [L28] EXPR (ix & 0x7fffffff) | (iy & 0x80000000) [L28] sf_u.word = ((ix & 0x7fffffff) | (iy & 0x80000000)) [L29] EXPR sf_u.value [L29] (x) = sf_u.value [L31] return x; [L47] RET, EXPR copysign_float(x, y) [L47] float res = copysign_float(x, y); [L50] CALL, EXPR isnan_float(res) [L35] return x != x; [L50] RET, EXPR isnan_float(res) [L50] COND TRUE !isnan_float(res) [L51] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 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, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 8 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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 [2024-11-02 11:21:00,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2 --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 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:21:03,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:21:03,504 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 11:21:03,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:21:03,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:21:03,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:21:03,561 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:21:03,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:21:03,563 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:21:03,564 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:21:03,565 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:21:03,565 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:21:03,565 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:21:03,566 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:21:03,566 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:21:03,567 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:21:03,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:21:03,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:21:03,568 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:21:03,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:21:03,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:21:03,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:21:03,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:21:03,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:21:03,574 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 11:21:03,575 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 11:21:03,575 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:21:03,575 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 11:21:03,576 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:21:03,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:21:03,576 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:21:03,577 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:21:03,577 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 11:21:03,577 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:21:03,578 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:21:03,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:21:03,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:21:03,579 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:21:03,579 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:21:03,579 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 11:21:03,581 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 11:21:03,583 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:21:03,583 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:21:03,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:21:03,585 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 [2024-11-02 11:21:03,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:21:04,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:21:04,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:21:04,032 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:21:04,033 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:21:04,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c Unable to find full path for "g++" [2024-11-02 11:21:06,317 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:21:06,602 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:21:06,606 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2024-11-02 11:21:06,619 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/data/aecb5d279/2aa47002af194e16910bd030e1644144/FLAGefe2108c9 [2024-11-02 11:21:06,633 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/data/aecb5d279/2aa47002af194e16910bd030e1644144 [2024-11-02 11:21:06,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:21:06,637 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:21:06,639 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:21:06,639 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:21:06,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:21:06,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:21:06" (1/1) ... [2024-11-02 11:21:06,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11b81133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:06, skipping insertion in model container [2024-11-02 11:21:06,650 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:21:06" (1/1) ... [2024-11-02 11:21:06,670 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:21:06,898 WARN L251 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_f10cab93-1d76-448f-a108-284fdf0155bd/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2024-11-02 11:21:06,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:21:06,921 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:21:06,947 WARN L251 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_f10cab93-1d76-448f-a108-284fdf0155bd/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2024-11-02 11:21:06,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:21:06,976 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:21:06,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:06 WrapperNode [2024-11-02 11:21:06,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:21:06,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:21:06,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:21:06,978 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:21:06,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:06" (1/1) ... [2024-11-02 11:21:06,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:06" (1/1) ... [2024-11-02 11:21:07,021 INFO L138 Inliner]: procedures = 20, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-02 11:21:07,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:21:07,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:21:07,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:21:07,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:21:07,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:06" (1/1) ... [2024-11-02 11:21:07,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:06" (1/1) ... [2024-11-02 11:21:07,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:06" (1/1) ... [2024-11-02 11:21:07,036 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:06" (1/1) ... [2024-11-02 11:21:07,055 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:06" (1/1) ... [2024-11-02 11:21:07,063 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:06" (1/1) ... [2024-11-02 11:21:07,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:06" (1/1) ... [2024-11-02 11:21:07,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:06" (1/1) ... [2024-11-02 11:21:07,073 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:21:07,075 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:21:07,075 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:21:07,075 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:21:07,076 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:06" (1/1) ... [2024-11-02 11:21:07,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:21:07,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:21:07,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:21:07,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:21:07,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:21:07,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 11:21:07,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 11:21:07,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2024-11-02 11:21:07,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-02 11:21:07,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:21:07,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:21:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2024-11-02 11:21:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-02 11:21:07,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 11:21:07,274 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:21:07,278 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:21:07,486 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-02 11:21:07,486 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:21:07,497 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:21:07,498 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-02 11:21:07,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:21:07 BoogieIcfgContainer [2024-11-02 11:21:07,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:21:07,501 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:21:07,502 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:21:07,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:21:07,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:21:06" (1/3) ... [2024-11-02 11:21:07,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383b8876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:21:07, skipping insertion in model container [2024-11-02 11:21:07,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:21:06" (2/3) ... [2024-11-02 11:21:07,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@383b8876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:21:07, skipping insertion in model container [2024-11-02 11:21:07,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:21:07" (3/3) ... [2024-11-02 11:21:07,510 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2024-11-02 11:21:07,525 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:21:07,526 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:21:07,618 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:21:07,625 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;@f69441b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:21:07,625 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:21:07,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:21:07,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-02 11:21:07,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:07,636 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:07,636 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:21:07,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:07,643 INFO L85 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2024-11-02 11:21:07,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:21:07,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272453966] [2024-11-02 11:21:07,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:07,657 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 [2024-11-02 11:21:07,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:21:07,660 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 11:21:07,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:21:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:07,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 11:21:07,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:21:07,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:21:07,783 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:21:07,785 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 11:21:07,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272453966] [2024-11-02 11:21:07,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272453966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:21:07,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:21:07,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 11:21:07,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675040268] [2024-11-02 11:21:07,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:21:07,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 11:21:07,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 11:21:07,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 11:21:07,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 11:21:07,828 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:21:07,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:21:07,846 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2024-11-02 11:21:07,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 11:21:07,849 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-02 11:21:07,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:21:07,856 INFO L225 Difference]: With dead ends: 32 [2024-11-02 11:21:07,857 INFO L226 Difference]: Without dead ends: 14 [2024-11-02 11:21:07,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 11:21:07,866 INFO L432 NwaCegarLoop]: 16 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, 16 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 [2024-11-02 11:21:07,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 11:21:07,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-02 11:21:07,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-02 11:21:07,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) [2024-11-02 11:21:07,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2024-11-02 11:21:07,902 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2024-11-02 11:21:07,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:21:07,902 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2024-11-02 11:21:07,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 11:21:07,905 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2024-11-02 11:21:07,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-02 11:21:07,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:21:07,906 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:21:07,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/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)] Ended with exit code 0 [2024-11-02 11:21:08,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:21:08,107 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:21:08,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:21:08,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2024-11-02 11:21:08,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 11:21:08,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685843601] [2024-11-02 11:21:08,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:21:08,109 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 [2024-11-02 11:21:08,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 11:21:08,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 11:21:08,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:21:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:21:08,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-02 11:21:08,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 11:21:08,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-02 11:21:08,360 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2024-11-02 11:21:08,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:21:08,573 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 11:21:08,574 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 11:21:08,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685843601] [2024-11-02 11:21:08,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685843601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:21:08,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:21:08,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-02 11:21:08,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716893079] [2024-11-02 11:21:08,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:21:08,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 11:21:08,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 11:21:08,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 11:21:08,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-02 11:21:08,583 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2024-11-02 11:21:08,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:21:08,776 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2024-11-02 11:21:08,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-02 11:21:08,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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 [2024-11-02 11:21:08,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:21:08,779 INFO L225 Difference]: With dead ends: 14 [2024-11-02 11:21:08,779 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 11:21:08,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-02 11:21:08,781 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 11:21:08,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 24 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 11:21:08,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 11:21:08,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 11:21:08,786 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) [2024-11-02 11:21:08,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 11:21:08,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2024-11-02 11:21:08,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:21:08,787 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 11:21:08,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2024-11-02 11:21:08,788 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 11:21:08,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 11:21:08,791 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 11:21:08,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:21:08,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 11:21:08,997 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-02 11:21:08,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 11:21:09,059 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 11:21:09,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 11:21:09 BoogieIcfgContainer [2024-11-02 11:21:09,069 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 11:21:09,070 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 11:21:09,070 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 11:21:09,071 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 11:21:09,071 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:21:07" (3/4) ... [2024-11-02 11:21:09,074 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-02 11:21:09,081 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-02 11:21:09,081 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-02 11:21:09,081 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-02 11:21:09,081 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-02 11:21:09,163 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 11:21:09,163 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/witness.yml [2024-11-02 11:21:09,164 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 11:21:09,164 INFO L158 Benchmark]: Toolchain (without parser) took 2527.19ms. Allocated memory is still 113.2MB. Free memory was 89.4MB in the beginning and 48.7MB in the end (delta: 40.7MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2024-11-02 11:21:09,165 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 65.0MB. Free memory was 40.7MB in the beginning and 40.6MB in the end (delta: 68.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 11:21:09,165 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.42ms. Allocated memory is still 113.2MB. Free memory was 89.1MB in the beginning and 75.8MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-02 11:21:09,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.60ms. Allocated memory is still 113.2MB. Free memory was 75.8MB in the beginning and 74.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 11:21:09,166 INFO L158 Benchmark]: Boogie Preprocessor took 51.22ms. Allocated memory is still 113.2MB. Free memory was 74.4MB in the beginning and 72.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 11:21:09,166 INFO L158 Benchmark]: RCFGBuilder took 424.18ms. Allocated memory is still 113.2MB. Free memory was 72.7MB in the beginning and 60.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-02 11:21:09,167 INFO L158 Benchmark]: TraceAbstraction took 1568.12ms. Allocated memory is still 113.2MB. Free memory was 59.8MB in the beginning and 52.9MB in the end (delta: 6.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-11-02 11:21:09,167 INFO L158 Benchmark]: Witness Printer took 93.55ms. Allocated memory is still 113.2MB. Free memory was 52.9MB in the beginning and 48.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 11:21:09,170 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 65.0MB. Free memory was 40.7MB in the beginning and 40.6MB in the end (delta: 68.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.42ms. Allocated memory is still 113.2MB. Free memory was 89.1MB in the beginning and 75.8MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.60ms. Allocated memory is still 113.2MB. Free memory was 75.8MB in the beginning and 74.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.22ms. Allocated memory is still 113.2MB. Free memory was 74.4MB in the beginning and 72.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 424.18ms. Allocated memory is still 113.2MB. Free memory was 72.7MB in the beginning and 60.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1568.12ms. Allocated memory is still 113.2MB. Free memory was 59.8MB in the beginning and 52.9MB in the end (delta: 6.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Witness Printer took 93.55ms. Allocated memory is still 113.2MB. Free memory was 52.9MB in the beginning and 48.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 51]: 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 22 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 8 QuantifiedInterpolants, 97 SizeOfPredicates, 6 NumberOfNonLiveVariables, 93 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-02 11:21:09,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f10cab93-1d76-448f-a108-284fdf0155bd/bin/utaipan-verify-DbMuA5NWw2/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 Writing output log to file Ultimate.log Result: TRUE