./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1271a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1271a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a30f6768043f9b1bbb4a159ab9668e10bade1708373695265965e63885e716ba --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 12:43:10,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:43:10,608 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 12:43:10,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:43:10,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:43:10,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:43:10,642 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:43:10,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:43:10,643 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 12:43:10,643 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 12:43:10,644 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:43:10,644 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:43:10,645 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:43:10,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:43:10,645 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:43:10,646 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:43:10,646 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:43:10,647 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:43:10,647 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 12:43:10,647 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:43:10,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:43:10,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:43:10,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:43:10,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:43:10,654 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:43:10,654 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:43:10,654 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:43:10,655 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:43:10,655 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:43:10,655 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:43:10,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:43:10,656 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:43:10,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:43:10,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:43:10,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:43:10,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:43:10,657 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 12:43:10,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 12:43:10,657 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:43:10,657 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 12:43:10,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 12:43:10,659 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 12:43:10,660 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a30f6768043f9b1bbb4a159ab9668e10bade1708373695265965e63885e716ba [2024-11-08 12:43:10,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:43:10,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:43:10,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:43:10,937 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:43:10,937 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:43:10,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1271a.c [2024-11-08 12:43:12,374 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:43:12,568 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:43:12,568 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1271a.c [2024-11-08 12:43:12,576 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/982b61b11/dc0c6b232c3147d8a493f63e20e9ad2c/FLAG04b49aca6 [2024-11-08 12:43:12,589 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/982b61b11/dc0c6b232c3147d8a493f63e20e9ad2c [2024-11-08 12:43:12,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:43:12,593 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:43:12,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:43:12,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:43:12,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:43:12,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:43:12" (1/1) ... [2024-11-08 12:43:12,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@662a4baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:12, skipping insertion in model container [2024-11-08 12:43:12,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:43:12" (1/1) ... [2024-11-08 12:43:12,634 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:43:12,830 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1271a.c[4883,4896] [2024-11-08 12:43:12,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:43:12,840 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:43:12,889 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1271a.c[4883,4896] [2024-11-08 12:43:12,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:43:12,918 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:43:12,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:12 WrapperNode [2024-11-08 12:43:12,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:43:12,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:43:12,921 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:43:12,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:43:12,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:12" (1/1) ... [2024-11-08 12:43:12,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:12" (1/1) ... [2024-11-08 12:43:12,984 INFO L138 Inliner]: procedures = 19, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 277 [2024-11-08 12:43:12,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:43:12,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:43:12,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:43:12,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:43:12,997 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:12" (1/1) ... [2024-11-08 12:43:12,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:12" (1/1) ... [2024-11-08 12:43:13,005 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:12" (1/1) ... [2024-11-08 12:43:13,026 INFO L175 MemorySlicer]: Split 34 memory accesses to 17 slices as follows [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]. 6 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 16 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-08 12:43:13,027 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:12" (1/1) ... [2024-11-08 12:43:13,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:12" (1/1) ... [2024-11-08 12:43:13,050 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:12" (1/1) ... [2024-11-08 12:43:13,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:12" (1/1) ... [2024-11-08 12:43:13,060 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:12" (1/1) ... [2024-11-08 12:43:13,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:12" (1/1) ... [2024-11-08 12:43:13,072 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:43:13,073 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:43:13,074 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:43:13,074 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:43:13,075 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:12" (1/1) ... [2024-11-08 12:43:13,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:43:13,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 12:43:13,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 12:43:13,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 12:43:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:43:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 12:43:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 12:43:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 12:43:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 12:43:13,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 12:43:13,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 12:43:13,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 12:43:13,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 12:43:13,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 12:43:13,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-08 12:43:13,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-08 12:43:13,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-08 12:43:13,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-08 12:43:13,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-08 12:43:13,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-08 12:43:13,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-08 12:43:13,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-08 12:43:13,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:43:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 12:43:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 12:43:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 12:43:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-08 12:43:13,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-08 12:43:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-08 12:43:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-08 12:43:13,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-08 12:43:13,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-08 12:43:13,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-08 12:43:13,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-08 12:43:13,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-08 12:43:13,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-08 12:43:13,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-11-08 12:43:13,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-11-08 12:43:13,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-11-08 12:43:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2024-11-08 12:43:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 12:43:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 12:43:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 12:43:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 12:43:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 12:43:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 12:43:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 12:43:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-08 12:43:13,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-08 12:43:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-08 12:43:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-08 12:43:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-08 12:43:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-08 12:43:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-08 12:43:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-08 12:43:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-08 12:43:13,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-08 12:43:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 12:43:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 12:43:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-08 12:43:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-08 12:43:13,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-08 12:43:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-08 12:43:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-08 12:43:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-08 12:43:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-08 12:43:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-08 12:43:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-08 12:43:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-08 12:43:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-08 12:43:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-11-08 12:43:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-11-08 12:43:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-11-08 12:43:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2024-11-08 12:43:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:43:13,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:43:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 12:43:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 12:43:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 12:43:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 12:43:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 12:43:13,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 12:43:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 12:43:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-08 12:43:13,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-08 12:43:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-08 12:43:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-08 12:43:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-08 12:43:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-08 12:43:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-08 12:43:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-08 12:43:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-08 12:43:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-08 12:43:13,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:43:13,196 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-08 12:43:13,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-08 12:43:13,365 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:43:13,367 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:43:13,789 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-11-08 12:43:13,789 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:43:13,809 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:43:13,810 INFO L316 CfgBuilder]: Removed 34 assume(true) statements. [2024-11-08 12:43:13,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:43:13 BoogieIcfgContainer [2024-11-08 12:43:13,810 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:43:13,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:43:13,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:43:13,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:43:13,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:43:12" (1/3) ... [2024-11-08 12:43:13,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a25c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:43:13, skipping insertion in model container [2024-11-08 12:43:13,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:12" (2/3) ... [2024-11-08 12:43:13,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a25c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:43:13, skipping insertion in model container [2024-11-08 12:43:13,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:43:13" (3/3) ... [2024-11-08 12:43:13,820 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271a.c [2024-11-08 12:43:13,833 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:43:13,833 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:43:13,886 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 12:43:13,892 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=PETRI_NET, 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;@288c4d24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:43:13,892 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:43:13,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 94 states have (on average 1.6702127659574468) internal successors, (157), 95 states have internal predecessors, (157), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 12:43:13,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-08 12:43:13,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:43:13,905 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:43:13,906 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:43:13,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:43:13,912 INFO L85 PathProgramCache]: Analyzing trace with hash -941852800, now seen corresponding path program 1 times [2024-11-08 12:43:13,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:43:13,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844835843] [2024-11-08 12:43:13,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:43:13,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:43:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:43:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:43:14,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:43:14,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844835843] [2024-11-08 12:43:14,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844835843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:43:14,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:43:14,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:43:14,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817520086] [2024-11-08 12:43:14,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:43:14,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 12:43:14,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:43:14,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 12:43:14,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:43:14,135 INFO L87 Difference]: Start difference. First operand has 99 states, 94 states have (on average 1.6702127659574468) internal successors, (157), 95 states have internal predecessors, (157), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2024-11-08 12:43:14,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:43:14,176 INFO L93 Difference]: Finished difference Result 196 states and 322 transitions. [2024-11-08 12:43:14,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:43:14,179 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2024-11-08 12:43:14,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:43:14,187 INFO L225 Difference]: With dead ends: 196 [2024-11-08 12:43:14,188 INFO L226 Difference]: Without dead ends: 95 [2024-11-08 12:43:14,193 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 [2024-11-08 12:43:14,196 INFO L432 NwaCegarLoop]: 125 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, 125 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 [2024-11-08 12:43:14,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:43:14,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-08 12:43:14,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-08 12:43:14,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 91 states have (on average 1.2747252747252746) internal successors, (116), 91 states have internal predecessors, (116), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 12:43:14,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 120 transitions. [2024-11-08 12:43:14,236 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 120 transitions. Word has length 18 [2024-11-08 12:43:14,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:43:14,237 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 120 transitions. [2024-11-08 12:43:14,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2024-11-08 12:43:14,237 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 120 transitions. [2024-11-08 12:43:14,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-08 12:43:14,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:43:14,238 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:43:14,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 12:43:14,239 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:43:14,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:43:14,242 INFO L85 PathProgramCache]: Analyzing trace with hash 327064178, now seen corresponding path program 1 times [2024-11-08 12:43:14,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:43:14,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970288521] [2024-11-08 12:43:14,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:43:14,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:43:14,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:43:14,374 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 12:43:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:43:14,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 12:43:14,459 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 12:43:14,461 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:43:14,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 12:43:14,468 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 12:43:14,489 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:43:14,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:43:14 BoogieIcfgContainer [2024-11-08 12:43:14,493 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:43:14,493 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:43:14,494 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:43:14,494 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:43:14,494 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:43:13" (3/4) ... [2024-11-08 12:43:14,497 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 12:43:14,498 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:43:14,499 INFO L158 Benchmark]: Toolchain (without parser) took 1905.61ms. Allocated memory was 151.0MB in the beginning and 209.7MB in the end (delta: 58.7MB). Free memory was 92.5MB in the beginning and 113.1MB in the end (delta: -20.6MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2024-11-08 12:43:14,499 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:43:14,499 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.56ms. Allocated memory is still 151.0MB. Free memory was 92.5MB in the beginning and 76.6MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 12:43:14,500 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.55ms. Allocated memory is still 151.0MB. Free memory was 76.6MB in the beginning and 74.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:43:14,500 INFO L158 Benchmark]: Boogie Preprocessor took 87.31ms. Allocated memory is still 151.0MB. Free memory was 74.1MB in the beginning and 69.1MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 12:43:14,501 INFO L158 Benchmark]: RCFGBuilder took 736.73ms. Allocated memory was 151.0MB in the beginning and 209.7MB in the end (delta: 58.7MB). Free memory was 69.1MB in the beginning and 154.0MB in the end (delta: -84.9MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2024-11-08 12:43:14,501 INFO L158 Benchmark]: TraceAbstraction took 678.78ms. Allocated memory is still 209.7MB. Free memory was 152.9MB in the beginning and 114.1MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-08 12:43:14,502 INFO L158 Benchmark]: Witness Printer took 4.52ms. Allocated memory is still 209.7MB. Free memory was 114.1MB in the beginning and 113.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:43:14,505 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 151.0MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.56ms. Allocated memory is still 151.0MB. Free memory was 92.5MB in the beginning and 76.6MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.55ms. Allocated memory is still 151.0MB. Free memory was 76.6MB in the beginning and 74.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.31ms. Allocated memory is still 151.0MB. Free memory was 74.1MB in the beginning and 69.1MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 736.73ms. Allocated memory was 151.0MB in the beginning and 209.7MB in the end (delta: 58.7MB). Free memory was 69.1MB in the beginning and 154.0MB in the end (delta: -84.9MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * TraceAbstraction took 678.78ms. Allocated memory is still 209.7MB. Free memory was 152.9MB in the beginning and 114.1MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 4.52ms. Allocated memory is still 209.7MB. Free memory was 114.1MB in the beginning and 113.1MB in the end (delta: 1.0MB). 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: 241]: 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 213, overapproximation of someBinaryArithmeticFLOAToperation at line 120. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L234] float x = 0.0f / 0.0f; [L235] float y = __VERIFIER_nondet_float(); [L237] CALL isfinite_float(y) [L217] __int32_t ix; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2399141915] [L219] ieee_float_shape_type gf_u; [L220] gf_u.value = (x) [L221] EXPR gf_u.word [L221] (ix) = gf_u.word [L223] ix &= 0x7fffffff [L224] return (((ix) < 0x7f800000L)); VAL [\result=1, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2399141915] [L237] RET isfinite_float(y) [L237] COND TRUE isfinite_float(y) [L238] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2399141917, y=2399141915] [L88] ieee_float_shape_type gf_u; [L89] gf_u.value = (x) [L90] EXPR gf_u.word [L90] (ha) = gf_u.word [L92] ha &= 0x7fffffffL VAL [ha=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2399141917, y=2399141915] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (y) [L96] EXPR gf_u.word [L96] (hb) = gf_u.word [L98] hb &= 0x7fffffffL VAL [ha=0, hb=251658241, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2399141917, y=2399141915] [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [a=2399141915, b=2399141917, ha=251658241, hb=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L110] ieee_float_shape_type sf_u; [L111] sf_u.word = (ha) [L112] EXPR sf_u.value [L112] (a) = sf_u.value [L115] ieee_float_shape_type sf_u; [L116] sf_u.word = (hb) [L117] EXPR sf_u.value [L117] (b) = sf_u.value [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [a=2399141918, b=2399141916, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L238] RET, EXPR __ieee754_hypotf(x, y) [L238] float res = __ieee754_hypotf(x, y); [L240] CALL, EXPR isnan_float(res) [L213] return x != x; VAL [\result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L240] RET, EXPR isnan_float(res) [L240] COND TRUE !isnan_float(res) [L241] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 99 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 125 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 125 mSDtfsCounter, 0 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=99occurred 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, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 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 [2024-11-08 12:43:14,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1271a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a30f6768043f9b1bbb4a159ab9668e10bade1708373695265965e63885e716ba --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 12:43:16,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:43:16,714 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 12:43:16,719 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:43:16,719 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:43:16,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:43:16,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:43:16,751 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:43:16,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 12:43:16,752 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 12:43:16,752 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:43:16,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:43:16,753 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:43:16,754 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:43:16,754 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:43:16,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:43:16,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:43:16,755 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:43:16,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:43:16,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:43:16,756 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:43:16,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:43:16,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:43:16,759 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 12:43:16,759 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 12:43:16,759 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:43:16,760 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 12:43:16,760 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:43:16,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:43:16,760 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:43:16,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:43:16,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:43:16,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:43:16,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:43:16,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:43:16,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:43:16,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:43:16,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:43:16,771 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-08 12:43:16,771 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 12:43:16,771 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:43:16,771 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 12:43:16,772 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 12:43:16,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 12:43:16,772 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a30f6768043f9b1bbb4a159ab9668e10bade1708373695265965e63885e716ba [2024-11-08 12:43:17,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:43:17,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:43:17,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:43:17,143 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:43:17,143 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:43:17,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1271a.c [2024-11-08 12:43:18,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:43:18,806 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:43:18,806 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1271a.c [2024-11-08 12:43:18,818 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61cc80728/6782a38a8055452692b259315905be42/FLAG8613036d4 [2024-11-08 12:43:18,836 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61cc80728/6782a38a8055452692b259315905be42 [2024-11-08 12:43:18,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:43:18,840 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:43:18,844 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:43:18,844 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:43:18,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:43:18,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:43:18" (1/1) ... [2024-11-08 12:43:18,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10448876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:18, skipping insertion in model container [2024-11-08 12:43:18,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:43:18" (1/1) ... [2024-11-08 12:43:18,884 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:43:19,133 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1271a.c[4883,4896] [2024-11-08 12:43:19,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:43:19,153 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:43:19,194 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1271a.c[4883,4896] [2024-11-08 12:43:19,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:43:19,214 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:43:19,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:19 WrapperNode [2024-11-08 12:43:19,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:43:19,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:43:19,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:43:19,216 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:43:19,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:19" (1/1) ... [2024-11-08 12:43:19,237 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:19" (1/1) ... [2024-11-08 12:43:19,268 INFO L138 Inliner]: procedures = 22, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 276 [2024-11-08 12:43:19,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:43:19,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:43:19,270 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:43:19,271 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:43:19,280 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:19" (1/1) ... [2024-11-08 12:43:19,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:19" (1/1) ... [2024-11-08 12:43:19,290 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:19" (1/1) ... [2024-11-08 12:43:19,320 INFO L175 MemorySlicer]: Split 34 memory accesses to 17 slices as follows [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]. 6 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 16 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2024-11-08 12:43:19,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:19" (1/1) ... [2024-11-08 12:43:19,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:19" (1/1) ... [2024-11-08 12:43:19,341 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:19" (1/1) ... [2024-11-08 12:43:19,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:19" (1/1) ... [2024-11-08 12:43:19,351 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:19" (1/1) ... [2024-11-08 12:43:19,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:19" (1/1) ... [2024-11-08 12:43:19,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:43:19,372 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:43:19,372 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:43:19,372 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:43:19,373 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:19" (1/1) ... [2024-11-08 12:43:19,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:43:19,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 12:43:19,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 12:43:19,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 12:43:19,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:43:19,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 12:43:19,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 12:43:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 12:43:19,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 12:43:19,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-08 12:43:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-08 12:43:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-08 12:43:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-08 12:43:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-08 12:43:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-08 12:43:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-08 12:43:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-08 12:43:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-08 12:43:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2024-11-08 12:43:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2024-11-08 12:43:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2024-11-08 12:43:19,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2024-11-08 12:43:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:43:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-08 12:43:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-08 12:43:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-08 12:43:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-08 12:43:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-08 12:43:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-08 12:43:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-08 12:43:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-08 12:43:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-08 12:43:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-08 12:43:19,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-08 12:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-08 12:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2024-11-08 12:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2024-11-08 12:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2024-11-08 12:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#15 [2024-11-08 12:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#16 [2024-11-08 12:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 12:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 12:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 12:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 12:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-08 12:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-08 12:43:19,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-08 12:43:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-08 12:43:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-08 12:43:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-08 12:43:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-08 12:43:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-08 12:43:19,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-11-08 12:43:19,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2024-11-08 12:43:19,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2024-11-08 12:43:19,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2024-11-08 12:43:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2024-11-08 12:43:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:43:19,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:43:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-08 12:43:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-08 12:43:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-08 12:43:19,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-08 12:43:19,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-08 12:43:19,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-08 12:43:19,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-08 12:43:19,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-08 12:43:19,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-08 12:43:19,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-08 12:43:19,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-08 12:43:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-08 12:43:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2024-11-08 12:43:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2024-11-08 12:43:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2024-11-08 12:43:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#15 [2024-11-08 12:43:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#16 [2024-11-08 12:43:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 12:43:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 12:43:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 12:43:19,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-08 12:43:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-08 12:43:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-08 12:43:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-08 12:43:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-08 12:43:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-08 12:43:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-08 12:43:19,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-08 12:43:19,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2024-11-08 12:43:19,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2024-11-08 12:43:19,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2024-11-08 12:43:19,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2024-11-08 12:43:19,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2024-11-08 12:43:19,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2024-11-08 12:43:19,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:43:19,477 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-08 12:43:19,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-08 12:43:19,666 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:43:19,669 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:43:22,185 INFO L? ?]: Removed 57 outVars from TransFormulas that were not future-live. [2024-11-08 12:43:22,186 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:43:22,200 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:43:22,201 INFO L316 CfgBuilder]: Removed 34 assume(true) statements. [2024-11-08 12:43:22,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:43:22 BoogieIcfgContainer [2024-11-08 12:43:22,201 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:43:22,203 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:43:22,203 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:43:22,206 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:43:22,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:43:18" (1/3) ... [2024-11-08 12:43:22,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d3b611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:43:22, skipping insertion in model container [2024-11-08 12:43:22,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:43:19" (2/3) ... [2024-11-08 12:43:22,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d3b611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:43:22, skipping insertion in model container [2024-11-08 12:43:22,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:43:22" (3/3) ... [2024-11-08 12:43:22,208 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271a.c [2024-11-08 12:43:22,224 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:43:22,225 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:43:22,285 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 12:43:22,295 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=PETRI_NET, 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;@645737ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:43:22,295 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:43:22,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 87 states have (on average 1.6781609195402298) internal successors, (146), 88 states have internal predecessors, (146), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 12:43:22,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-08 12:43:22,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:43:22,308 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:43:22,310 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:43:22,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:43:22,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1909357408, now seen corresponding path program 1 times [2024-11-08 12:43:22,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:43:22,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919430505] [2024-11-08 12:43:22,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:43:22,333 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 [2024-11-08 12:43:22,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:43:22,337 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-08 12:43:22,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-08 12:43:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:43:22,552 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 12:43:22,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:43:22,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:43:22,573 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:43:22,574 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:43:22,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919430505] [2024-11-08 12:43:22,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919430505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:43:22,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:43:22,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:43:22,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186323599] [2024-11-08 12:43:22,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:43:22,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 12:43:22,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:43:22,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 12:43:22,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:43:22,615 INFO L87 Difference]: Start difference. First operand has 92 states, 87 states have (on average 1.6781609195402298) internal successors, (146), 88 states have internal predecessors, (146), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2024-11-08 12:43:22,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:43:22,655 INFO L93 Difference]: Finished difference Result 182 states and 300 transitions. [2024-11-08 12:43:22,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:43:22,658 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2024-11-08 12:43:22,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:43:22,664 INFO L225 Difference]: With dead ends: 182 [2024-11-08 12:43:22,664 INFO L226 Difference]: Without dead ends: 88 [2024-11-08 12:43:22,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:43:22,670 INFO L432 NwaCegarLoop]: 115 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, 115 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 [2024-11-08 12:43:22,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:43:22,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-08 12:43:22,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-08 12:43:22,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 84 states have (on average 1.2619047619047619) internal successors, (106), 84 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 12:43:22,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 110 transitions. [2024-11-08 12:43:22,707 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 110 transitions. Word has length 18 [2024-11-08 12:43:22,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:43:22,707 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 110 transitions. [2024-11-08 12:43:22,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2024-11-08 12:43:22,708 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 110 transitions. [2024-11-08 12:43:22,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-08 12:43:22,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:43:22,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:43:22,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-08 12:43:22,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-08 12:43:22,910 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:43:22,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:43:22,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1814558905, now seen corresponding path program 1 times [2024-11-08 12:43:22,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:43:22,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793366133] [2024-11-08 12:43:22,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:43:22,912 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 [2024-11-08 12:43:22,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:43:22,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-08 12:43:22,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-08 12:43:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:43:23,162 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 12:43:23,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:43:23,326 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 [2024-11-08 12:43:23,339 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 [2024-11-08 12:43:23,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:43:23,899 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:43:23,899 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:43:23,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793366133] [2024-11-08 12:43:23,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793366133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:43:23,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:43:23,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 12:43:23,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961532291] [2024-11-08 12:43:23,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:43:23,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 12:43:23,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:43:23,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 12:43:23,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 12:43:23,902 INFO L87 Difference]: Start difference. First operand 88 states and 110 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 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) [2024-11-08 12:43:24,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:43:24,992 INFO L93 Difference]: Finished difference Result 103 states and 129 transitions. [2024-11-08 12:43:24,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 12:43:24,992 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-08 12:43:24,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:43:24,993 INFO L225 Difference]: With dead ends: 103 [2024-11-08 12:43:24,993 INFO L226 Difference]: Without dead ends: 37 [2024-11-08 12:43:24,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-08 12:43:24,995 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 39 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 12:43:24,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 87 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 12:43:24,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-08 12:43:25,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2024-11-08 12:43:25,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.0909090909090908) internal successors, (36), 33 states have internal predecessors, (36), 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) [2024-11-08 12:43:25,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2024-11-08 12:43:25,002 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2024-11-08 12:43:25,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:43:25,003 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2024-11-08 12:43:25,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 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) [2024-11-08 12:43:25,003 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2024-11-08 12:43:25,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-08 12:43:25,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:43:25,003 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:43:25,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-08 12:43:25,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-08 12:43:25,204 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:43:25,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:43:25,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1421531895, now seen corresponding path program 1 times [2024-11-08 12:43:25,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:43:25,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932270934] [2024-11-08 12:43:25,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:43:25,206 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 [2024-11-08 12:43:25,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:43:25,208 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-08 12:43:25,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-08 12:43:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:43:25,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 12:43:25,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:43:26,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:43:26,390 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:43:26,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:43:26,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932270934] [2024-11-08 12:43:26,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932270934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:43:26,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:43:26,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 12:43:26,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308600671] [2024-11-08 12:43:26,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:43:26,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 12:43:26,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:43:26,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 12:43:26,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 12:43:26,393 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 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) [2024-11-08 12:43:28,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:43:28,074 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2024-11-08 12:43:28,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 12:43:28,074 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-08 12:43:28,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:43:28,075 INFO L225 Difference]: With dead ends: 39 [2024-11-08 12:43:28,075 INFO L226 Difference]: Without dead ends: 34 [2024-11-08 12:43:28,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-11-08 12:43:28,077 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 28 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 12:43:28,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 122 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 12:43:28,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-08 12:43:28,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2024-11-08 12:43:28,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 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) [2024-11-08 12:43:28,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2024-11-08 12:43:28,084 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 23 [2024-11-08 12:43:28,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:43:28,084 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2024-11-08 12:43:28,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 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) [2024-11-08 12:43:28,085 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2024-11-08 12:43:28,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 12:43:28,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:43:28,086 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:43:28,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-08 12:43:28,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-08 12:43:28,287 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:43:28,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:43:28,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1642693520, now seen corresponding path program 1 times [2024-11-08 12:43:28,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:43:28,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132439116] [2024-11-08 12:43:28,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:43:28,289 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 [2024-11-08 12:43:28,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:43:28,292 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-08 12:43:28,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-08 12:43:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:43:28,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 12:43:28,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:43:28,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:43:28,867 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:43:28,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:43:28,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132439116] [2024-11-08 12:43:28,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132439116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:43:28,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:43:28,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 12:43:28,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045181452] [2024-11-08 12:43:28,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:43:28,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 12:43:28,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:43:28,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 12:43:28,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 12:43:28,870 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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) [2024-11-08 12:43:29,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:43:29,401 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2024-11-08 12:43:29,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 12:43:29,402 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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 28 [2024-11-08 12:43:29,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:43:29,403 INFO L225 Difference]: With dead ends: 44 [2024-11-08 12:43:29,403 INFO L226 Difference]: Without dead ends: 38 [2024-11-08 12:43:29,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-08 12:43:29,404 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 36 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 12:43:29,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 70 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 12:43:29,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-08 12:43:29,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-08 12:43:29,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.054054054054054) internal successors, (39), 37 states have internal predecessors, (39), 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) [2024-11-08 12:43:29,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2024-11-08 12:43:29,411 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 28 [2024-11-08 12:43:29,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:43:29,412 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2024-11-08 12:43:29,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 7 states have internal predecessors, (28), 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) [2024-11-08 12:43:29,412 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2024-11-08 12:43:29,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 12:43:29,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:43:29,413 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:43:29,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-08 12:43:29,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-08 12:43:29,614 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:43:29,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:43:29,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1585435218, now seen corresponding path program 1 times [2024-11-08 12:43:29,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:43:29,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584735494] [2024-11-08 12:43:29,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:43:29,615 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 [2024-11-08 12:43:29,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:43:29,616 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-08 12:43:29,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (6)] Waiting until timeout for monitored process [2024-11-08 12:43:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:43:29,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-08 12:43:29,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:43:30,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:43:30,637 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:43:30,638 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:43:30,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584735494] [2024-11-08 12:43:30,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584735494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:43:30,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:43:30,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 12:43:30,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335598831] [2024-11-08 12:43:30,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:43:30,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 12:43:30,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:43:30,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 12:43:30,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-08 12:43:30,642 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 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) [2024-11-08 12:43:31,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:43:31,399 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2024-11-08 12:43:31,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 12:43:31,400 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 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 28 [2024-11-08 12:43:31,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:43:31,400 INFO L225 Difference]: With dead ends: 44 [2024-11-08 12:43:31,400 INFO L226 Difference]: Without dead ends: 29 [2024-11-08 12:43:31,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-08 12:43:31,402 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 15 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 12:43:31,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 154 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 12:43:31,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-08 12:43:31,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-08 12:43:31,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0) internal successors, (28), 28 states have internal predecessors, (28), 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) [2024-11-08 12:43:31,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2024-11-08 12:43:31,409 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 28 [2024-11-08 12:43:31,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:43:31,410 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2024-11-08 12:43:31,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 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) [2024-11-08 12:43:31,410 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2024-11-08 12:43:31,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 12:43:31,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:43:31,411 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:43:31,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (6)] Forceful destruction successful, exit code 0 [2024-11-08 12:43:31,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-08 12:43:31,612 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:43:31,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:43:31,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1429668400, now seen corresponding path program 1 times [2024-11-08 12:43:31,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:43:31,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845753517] [2024-11-08 12:43:31,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:43:31,613 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 [2024-11-08 12:43:31,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:43:31,616 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-08 12:43:31,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (7)] Waiting until timeout for monitored process [2024-11-08 12:43:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:43:31,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 12:43:31,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:43:33,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:43:33,670 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:43:33,670 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:43:33,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845753517] [2024-11-08 12:43:33,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845753517] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:43:33,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:43:33,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 12:43:33,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151619100] [2024-11-08 12:43:33,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:43:33,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 12:43:33,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:43:33,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 12:43:33,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 12:43:33,672 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 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) [2024-11-08 12:43:36,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:43:36,117 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2024-11-08 12:43:36,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 12:43:36,118 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 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 28 [2024-11-08 12:43:36,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:43:36,118 INFO L225 Difference]: With dead ends: 29 [2024-11-08 12:43:36,118 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 12:43:36,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-08 12:43:36,119 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 7 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 12:43:36,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 111 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 12:43:36,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 12:43:36,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 12:43:36,120 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) [2024-11-08 12:43:36,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 12:43:36,120 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2024-11-08 12:43:36,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:43:36,120 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 12:43:36,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 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) [2024-11-08 12:43:36,121 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 12:43:36,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 12:43:36,123 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:43:36,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (7)] Ended with exit code 0 [2024-11-08 12:43:36,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-08 12:43:36,327 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-08 12:43:36,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 12:43:37,646 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:43:37,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:43:37 BoogieIcfgContainer [2024-11-08 12:43:37,666 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:43:37,667 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:43:37,667 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:43:37,667 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:43:37,668 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:43:22" (3/4) ... [2024-11-08 12:43:37,670 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 12:43:37,674 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2024-11-08 12:43:37,683 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-11-08 12:43:37,684 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-08 12:43:37,684 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 12:43:37,684 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 12:43:37,769 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 12:43:37,769 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 12:43:37,769 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:43:37,770 INFO L158 Benchmark]: Toolchain (without parser) took 18929.99ms. Allocated memory was 62.9MB in the beginning and 96.5MB in the end (delta: 33.6MB). Free memory was 30.6MB in the beginning and 44.0MB in the end (delta: -13.4MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2024-11-08 12:43:37,770 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 52.4MB. Free memory is still 27.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:43:37,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.10ms. Allocated memory is still 62.9MB. Free memory was 30.4MB in the beginning and 29.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2024-11-08 12:43:37,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.27ms. Allocated memory is still 62.9MB. Free memory was 29.0MB in the beginning and 26.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:43:37,771 INFO L158 Benchmark]: Boogie Preprocessor took 101.01ms. Allocated memory is still 62.9MB. Free memory was 26.4MB in the beginning and 41.9MB in the end (delta: -15.5MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2024-11-08 12:43:37,771 INFO L158 Benchmark]: RCFGBuilder took 2829.49ms. Allocated memory is still 62.9MB. Free memory was 41.6MB in the beginning and 25.3MB in the end (delta: 16.4MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-11-08 12:43:37,772 INFO L158 Benchmark]: TraceAbstraction took 15463.41ms. Allocated memory was 62.9MB in the beginning and 96.5MB in the end (delta: 33.6MB). Free memory was 24.7MB in the beginning and 49.0MB in the end (delta: -24.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-08 12:43:37,772 INFO L158 Benchmark]: Witness Printer took 102.25ms. Allocated memory is still 96.5MB. Free memory was 49.0MB in the beginning and 44.0MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 12:43:37,774 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86ms. Allocated memory is still 52.4MB. Free memory is still 27.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.10ms. Allocated memory is still 62.9MB. Free memory was 30.4MB in the beginning and 29.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.27ms. Allocated memory is still 62.9MB. Free memory was 29.0MB in the beginning and 26.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.01ms. Allocated memory is still 62.9MB. Free memory was 26.4MB in the beginning and 41.9MB in the end (delta: -15.5MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * RCFGBuilder took 2829.49ms. Allocated memory is still 62.9MB. Free memory was 41.6MB in the beginning and 25.3MB in the end (delta: 16.4MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15463.41ms. Allocated memory was 62.9MB in the beginning and 96.5MB in the end (delta: 33.6MB). Free memory was 24.7MB in the beginning and 49.0MB in the end (delta: -24.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 102.25ms. Allocated memory is still 96.5MB. Free memory was 49.0MB in the beginning and 44.0MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 241]: 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 2 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 125 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 659 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 452 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 438 IncrementalHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 207 mSDtfsCounter, 438 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 56, 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, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 142 ConstructedInterpolants, 79 QuantifiedInterpolants, 1776 SizeOfPredicates, 20 NumberOfNonLiveVariables, 603 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 218]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: null - ProcedureContractResult [Line: 16]: Procedure Contract for __ieee754_sqrtf Derived contract for procedure __ieee754_sqrtf. Requires: 0 Ensures: (0 && ((one_sqrt == \old(one_sqrt)) && (tiny_sqrt == \old(tiny_sqrt)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 12:43:37,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE