./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 3061b6dc 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-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:54:16,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:54:16,637 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 11:54:16,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:54:16,645 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:54:16,678 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:54:16,679 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:54:16,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:54:16,680 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:54:16,682 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:54:16,683 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:54:16,683 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:54:16,684 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:54:16,686 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:54:16,686 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:54:16,686 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:54:16,687 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:54:16,687 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:54:16,687 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 11:54:16,688 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:54:16,688 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:54:16,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:54:16,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:54:16,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:54:16,691 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:54:16,692 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:54:16,692 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:54:16,692 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:54:16,692 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:54:16,693 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:54:16,693 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:54:16,693 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:54:16,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:54:16,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:54:16,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:54:16,694 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:54:16,694 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 11:54:16,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 11:54:16,695 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:54:16,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:54:16,695 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:54:16,697 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:54:16,697 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a30f6768043f9b1bbb4a159ab9668e10bade1708373695265965e63885e716ba [2024-11-18 11:54:16,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:54:16,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:54:16,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:54:16,990 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:54:16,991 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:54:16,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1271a.c [2024-11-18 11:54:18,510 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:54:18,703 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:54:18,703 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1271a.c [2024-11-18 11:54:18,712 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff35c2d20/0310211dedb247a4aa3a0411f8d1c11e/FLAG82de57ea5 [2024-11-18 11:54:19,087 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff35c2d20/0310211dedb247a4aa3a0411f8d1c11e [2024-11-18 11:54:19,089 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:54:19,090 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:54:19,091 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:54:19,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:54:19,098 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:54:19,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33961e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19, skipping insertion in model container [2024-11-18 11:54:19,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,131 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:54:19,354 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] [2024-11-18 11:54:19,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:54:19,367 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:54:19,408 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] [2024-11-18 11:54:19,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:54:19,430 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:54:19,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19 WrapperNode [2024-11-18 11:54:19,431 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:54:19,432 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:54:19,432 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:54:19,432 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:54:19,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,449 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,473 INFO L138 Inliner]: procedures = 19, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 277 [2024-11-18 11:54:19,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:54:19,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:54:19,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:54:19,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:54:19,484 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,488 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,516 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]. [2024-11-18 11:54:19,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,537 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,552 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:54:19,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:54:19,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:54:19,562 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:54:19,563 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (1/1) ... [2024-11-18 11:54:19,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:54:19,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:54:19,603 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) [2024-11-18 11:54:19,606 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 [2024-11-18 11:54:19,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:54:19,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 11:54:19,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 11:54:19,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 11:54:19,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 11:54:19,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 11:54:19,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 11:54:19,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 11:54:19,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 11:54:19,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 11:54:19,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 11:54:19,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 11:54:19,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 11:54:19,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 11:54:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 11:54:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-18 11:54:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-18 11:54:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-18 11:54:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 11:54:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-18 11:54:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-18 11:54:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-18 11:54:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-18 11:54:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-18 11:54:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-11-18 11:54:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-11-18 11:54:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-11-18 11:54:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-11-18 11:54:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-11-18 11:54:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-11-18 11:54:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-11-18 11:54:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-11-18 11:54:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-11-18 11:54:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-11-18 11:54:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-11-18 11:54:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2024-11-18 11:54:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-18 11:54:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-18 11:54:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-18 11:54:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-18 11:54:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-18 11:54:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-18 11:54:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-18 11:54:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-18 11:54:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-18 11:54:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-18 11:54:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-18 11:54:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-18 11:54:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-18 11:54:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-18 11:54:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-18 11:54:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-18 11:54:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-18 11:54:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-18 11:54:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-18 11:54:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-18 11:54:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-18 11:54:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-18 11:54:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-11-18 11:54:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-11-18 11:54:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-11-18 11:54:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-11-18 11:54:19,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-11-18 11:54:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-11-18 11:54:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-11-18 11:54:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-11-18 11:54:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-11-18 11:54:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-11-18 11:54:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-11-18 11:54:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2024-11-18 11:54:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:54:19,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:54:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-18 11:54:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-18 11:54:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-18 11:54:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-18 11:54:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-18 11:54:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-18 11:54:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-18 11:54:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-18 11:54:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-18 11:54:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-18 11:54:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-18 11:54:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-18 11:54:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-18 11:54:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-18 11:54:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-18 11:54:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-18 11:54:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-18 11:54:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 11:54:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-18 11:54:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-18 11:54:19,851 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:54:19,853 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:54:20,317 INFO L? ?]: Removed 59 outVars from TransFormulas that were not future-live. [2024-11-18 11:54:20,317 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:54:20,331 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:54:20,331 INFO L316 CfgBuilder]: Removed 34 assume(true) statements. [2024-11-18 11:54:20,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:20 BoogieIcfgContainer [2024-11-18 11:54:20,332 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:54:20,334 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:54:20,334 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:54:20,339 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:54:20,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:54:19" (1/3) ... [2024-11-18 11:54:20,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c29e24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:54:20, skipping insertion in model container [2024-11-18 11:54:20,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:19" (2/3) ... [2024-11-18 11:54:20,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c29e24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:54:20, skipping insertion in model container [2024-11-18 11:54:20,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:20" (3/3) ... [2024-11-18 11:54:20,342 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271a.c [2024-11-18 11:54:20,356 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:54:20,356 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:54:20,411 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:54:20,417 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;@db86e89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:54:20,418 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:54:20,422 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) [2024-11-18 11:54:20,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-18 11:54:20,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:54:20,428 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:54:20,429 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:54:20,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:54:20,434 INFO L85 PathProgramCache]: Analyzing trace with hash -941852800, now seen corresponding path program 1 times [2024-11-18 11:54:20,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:54:20,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366979761] [2024-11-18 11:54:20,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:54:20,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:54:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:54:20,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:54:20,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 11:54:20,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366979761] [2024-11-18 11:54:20,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366979761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:54:20,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:54:20,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:54:20,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370848928] [2024-11-18 11:54:20,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:54:20,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 11:54:20,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 11:54:20,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 11:54:20,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:54:20,647 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) [2024-11-18 11:54:20,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:54:20,687 INFO L93 Difference]: Finished difference Result 196 states and 322 transitions. [2024-11-18 11:54:20,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 11:54:20,690 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 [2024-11-18 11:54:20,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:54:20,698 INFO L225 Difference]: With dead ends: 196 [2024-11-18 11:54:20,699 INFO L226 Difference]: Without dead ends: 95 [2024-11-18 11:54:20,703 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 [2024-11-18 11:54:20,707 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 [2024-11-18 11:54:20,711 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] [2024-11-18 11:54:20,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-18 11:54:20,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-18 11:54:20,751 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) [2024-11-18 11:54:20,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 120 transitions. [2024-11-18 11:54:20,759 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 120 transitions. Word has length 18 [2024-11-18 11:54:20,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:54:20,760 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 120 transitions. [2024-11-18 11:54:20,761 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) [2024-11-18 11:54:20,761 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 120 transitions. [2024-11-18 11:54:20,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-18 11:54:20,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:54:20,763 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] [2024-11-18 11:54:20,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 11:54:20,764 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:54:20,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:54:20,765 INFO L85 PathProgramCache]: Analyzing trace with hash 327064178, now seen corresponding path program 1 times [2024-11-18 11:54:20,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 11:54:20,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301504936] [2024-11-18 11:54:20,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:54:20,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 11:54:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:54:20,911 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 11:54:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 11:54:21,025 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 11:54:21,026 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 11:54:21,027 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 11:54:21,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 11:54:21,032 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-18 11:54:21,052 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 11:54:21,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:54:21 BoogieIcfgContainer [2024-11-18 11:54:21,056 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 11:54:21,057 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 11:54:21,057 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 11:54:21,057 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 11:54:21,057 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:20" (3/4) ... [2024-11-18 11:54:21,060 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-18 11:54:21,061 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 11:54:21,062 INFO L158 Benchmark]: Toolchain (without parser) took 1971.28ms. Allocated memory was 157.3MB in the beginning and 234.9MB in the end (delta: 77.6MB). Free memory was 102.2MB in the beginning and 145.0MB in the end (delta: -42.9MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2024-11-18 11:54:21,062 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 157.3MB. Free memory is still 118.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:54:21,063 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.68ms. Allocated memory is still 157.3MB. Free memory was 101.7MB in the beginning and 85.4MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-18 11:54:21,063 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.68ms. Allocated memory is still 157.3MB. Free memory was 85.4MB in the beginning and 82.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:54:21,064 INFO L158 Benchmark]: Boogie Preprocessor took 87.25ms. Allocated memory is still 157.3MB. Free memory was 82.9MB in the beginning and 77.8MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 11:54:21,064 INFO L158 Benchmark]: RCFGBuilder took 770.05ms. Allocated memory was 157.3MB in the beginning and 234.9MB in the end (delta: 77.6MB). Free memory was 77.8MB in the beginning and 187.0MB in the end (delta: -109.2MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2024-11-18 11:54:21,065 INFO L158 Benchmark]: TraceAbstraction took 721.95ms. Allocated memory is still 234.9MB. Free memory was 185.9MB in the beginning and 146.1MB in the end (delta: 39.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-18 11:54:21,065 INFO L158 Benchmark]: Witness Printer took 4.58ms. Allocated memory is still 234.9MB. Free memory was 146.1MB in the beginning and 145.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:54:21,067 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 157.3MB. Free memory is still 118.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.68ms. Allocated memory is still 157.3MB. Free memory was 101.7MB in the beginning and 85.4MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.68ms. Allocated memory is still 157.3MB. Free memory was 85.4MB in the beginning and 82.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.25ms. Allocated memory is still 157.3MB. Free memory was 82.9MB in the beginning and 77.8MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 770.05ms. Allocated memory was 157.3MB in the beginning and 234.9MB in the end (delta: 77.6MB). Free memory was 77.8MB in the beginning and 187.0MB in the end (delta: -109.2MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * TraceAbstraction took 721.95ms. Allocated memory is still 234.9MB. Free memory was 185.9MB in the beginning and 146.1MB in the end (delta: 39.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 4.58ms. Allocated memory is still 234.9MB. Free memory was 146.1MB in the beginning and 145.0MB 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=6442450970] [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=6442450970] [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=6442450973, y=6442450970] [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=6442450973, y=6442450970] [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=6442450973, y=6442450970] [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [a=6442450970, b=6442450973, 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=6442450971, b=6442450972, 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 [2024-11-18 11:54:21,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /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-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 11:54:23,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 11:54:23,439 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-18 11:54:23,447 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 11:54:23,448 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 11:54:23,483 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 11:54:23,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 11:54:23,485 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 11:54:23,485 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 11:54:23,487 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 11:54:23,488 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 11:54:23,488 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 11:54:23,488 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 11:54:23,490 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 11:54:23,490 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 11:54:23,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 11:54:23,491 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 11:54:23,491 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 11:54:23,492 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 11:54:23,492 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 11:54:23,492 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 11:54:23,495 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 11:54:23,495 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 11:54:23,495 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-18 11:54:23,495 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-18 11:54:23,496 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 11:54:23,496 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-18 11:54:23,496 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 11:54:23,496 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 11:54:23,496 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 11:54:23,497 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 11:54:23,497 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 11:54:23,497 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 11:54:23,497 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 11:54:23,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:54:23,498 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 11:54:23,498 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 11:54:23,500 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 11:54:23,501 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-18 11:54:23,501 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-18 11:54:23,501 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 11:54:23,502 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 11:54:23,502 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 11:54:23,502 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 11:54:23,502 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a30f6768043f9b1bbb4a159ab9668e10bade1708373695265965e63885e716ba [2024-11-18 11:54:23,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 11:54:23,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 11:54:23,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 11:54:23,847 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 11:54:23,847 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 11:54:23,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1271a.c [2024-11-18 11:54:25,367 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 11:54:25,580 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 11:54:25,580 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1271a.c [2024-11-18 11:54:25,592 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f41465e8/e65169889b6347268d6db14b08b4de7c/FLAGeea81f4d7 [2024-11-18 11:54:25,612 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f41465e8/e65169889b6347268d6db14b08b4de7c [2024-11-18 11:54:25,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 11:54:25,617 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 11:54:25,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 11:54:25,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 11:54:25,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 11:54:25,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:54:25" (1/1) ... [2024-11-18 11:54:25,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e951b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:25, skipping insertion in model container [2024-11-18 11:54:25,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:54:25" (1/1) ... [2024-11-18 11:54:25,656 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 11:54:25,939 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] [2024-11-18 11:54:25,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:54:25,960 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 11:54:25,999 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] [2024-11-18 11:54:26,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 11:54:26,018 INFO L204 MainTranslator]: Completed translation [2024-11-18 11:54:26,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26 WrapperNode [2024-11-18 11:54:26,019 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 11:54:26,020 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 11:54:26,020 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 11:54:26,020 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 11:54:26,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,040 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,072 INFO L138 Inliner]: procedures = 22, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 276 [2024-11-18 11:54:26,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 11:54:26,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 11:54:26,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 11:54:26,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 11:54:26,083 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,095 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,131 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]. [2024-11-18 11:54:26,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,167 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,187 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,193 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 11:54:26,208 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 11:54:26,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 11:54:26,208 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 11:54:26,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (1/1) ... [2024-11-18 11:54:26,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 11:54:26,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 11:54:26,247 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) [2024-11-18 11:54:26,265 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 [2024-11-18 11:54:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 11:54:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-18 11:54:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-18 11:54:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-18 11:54:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-18 11:54:26,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-18 11:54:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-18 11:54:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-18 11:54:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-18 11:54:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-18 11:54:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-18 11:54:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-18 11:54:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-18 11:54:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2024-11-18 11:54:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2024-11-18 11:54:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2024-11-18 11:54:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2024-11-18 11:54:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2024-11-18 11:54:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 11:54:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-18 11:54:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-18 11:54:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-18 11:54:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-18 11:54:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-18 11:54:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-18 11:54:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-18 11:54:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-18 11:54:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-18 11:54:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-18 11:54:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-18 11:54:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-18 11:54:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2024-11-18 11:54:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2024-11-18 11:54:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2024-11-18 11:54:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#15 [2024-11-18 11:54:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#16 [2024-11-18 11:54:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-18 11:54:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-18 11:54:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-18 11:54:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-18 11:54:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-18 11:54:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-18 11:54:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-18 11:54:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-18 11:54:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-18 11:54:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-18 11:54:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-18 11:54:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-18 11:54:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2024-11-18 11:54:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2024-11-18 11:54:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2024-11-18 11:54:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2024-11-18 11:54:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2024-11-18 11:54:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 11:54:26,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 11:54:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-18 11:54:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-18 11:54:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-18 11:54:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-18 11:54:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-18 11:54:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-18 11:54:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-18 11:54:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-18 11:54:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-18 11:54:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-18 11:54:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-18 11:54:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-18 11:54:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2024-11-18 11:54:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2024-11-18 11:54:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2024-11-18 11:54:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#15 [2024-11-18 11:54:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#16 [2024-11-18 11:54:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-18 11:54:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-18 11:54:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-18 11:54:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-18 11:54:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-18 11:54:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-18 11:54:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-18 11:54:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-18 11:54:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-18 11:54:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-18 11:54:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-11-18 11:54:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2024-11-18 11:54:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2024-11-18 11:54:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2024-11-18 11:54:26,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2024-11-18 11:54:26,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2024-11-18 11:54:26,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2024-11-18 11:54:26,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 11:54:26,322 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2024-11-18 11:54:26,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2024-11-18 11:54:26,504 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 11:54:26,506 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 11:54:28,177 INFO L? ?]: Removed 57 outVars from TransFormulas that were not future-live. [2024-11-18 11:54:28,178 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 11:54:28,194 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 11:54:28,195 INFO L316 CfgBuilder]: Removed 34 assume(true) statements. [2024-11-18 11:54:28,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:28 BoogieIcfgContainer [2024-11-18 11:54:28,196 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 11:54:28,199 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 11:54:28,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 11:54:28,203 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 11:54:28,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:54:25" (1/3) ... [2024-11-18 11:54:28,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1edc1a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:54:28, skipping insertion in model container [2024-11-18 11:54:28,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:54:26" (2/3) ... [2024-11-18 11:54:28,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1edc1a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:54:28, skipping insertion in model container [2024-11-18 11:54:28,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:28" (3/3) ... [2024-11-18 11:54:28,206 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1271a.c [2024-11-18 11:54:28,223 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 11:54:28,223 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 11:54:28,288 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 11:54:28,296 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;@33308315, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 11:54:28,296 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 11:54:28,301 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) [2024-11-18 11:54:28,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-18 11:54:28,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:54:28,308 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 11:54:28,309 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:54:28,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:54:28,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1909357408, now seen corresponding path program 1 times [2024-11-18 11:54:28,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:54:28,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631383444] [2024-11-18 11:54:28,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:54:28,338 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 [2024-11-18 11:54:28,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:54:28,341 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) [2024-11-18 11:54:28,342 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 [2024-11-18 11:54:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:54:28,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 11:54:28,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:54:28,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:54:28,559 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:54:28,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:54:28,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631383444] [2024-11-18 11:54:28,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [631383444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:54:28,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:54:28,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 11:54:28,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825105450] [2024-11-18 11:54:28,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:54:28,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 11:54:28,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:54:28,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 11:54:28,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 11:54:28,598 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) [2024-11-18 11:54:28,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:54:28,636 INFO L93 Difference]: Finished difference Result 182 states and 300 transitions. [2024-11-18 11:54:28,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 11:54:28,639 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 [2024-11-18 11:54:28,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:54:28,648 INFO L225 Difference]: With dead ends: 182 [2024-11-18 11:54:28,649 INFO L226 Difference]: Without dead ends: 88 [2024-11-18 11:54:28,654 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 [2024-11-18 11:54:28,657 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 [2024-11-18 11:54:28,659 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] [2024-11-18 11:54:28,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-18 11:54:28,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-18 11:54:28,704 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) [2024-11-18 11:54:28,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 110 transitions. [2024-11-18 11:54:28,708 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 110 transitions. Word has length 18 [2024-11-18 11:54:28,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:54:28,710 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 110 transitions. [2024-11-18 11:54:28,710 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) [2024-11-18 11:54:28,710 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 110 transitions. [2024-11-18 11:54:28,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-18 11:54:28,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:54:28,711 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] [2024-11-18 11:54:28,718 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 (2)] Forceful destruction successful, exit code 0 [2024-11-18 11:54:28,911 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 [2024-11-18 11:54:28,912 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:54:28,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:54:28,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1814558905, now seen corresponding path program 1 times [2024-11-18 11:54:28,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:54:28,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104346312] [2024-11-18 11:54:28,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:54:28,914 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 [2024-11-18 11:54:28,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:54:28,918 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) [2024-11-18 11:54:28,919 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 [2024-11-18 11:54:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:54:29,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-18 11:54:29,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:54:29,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:54:30,000 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:54:30,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:54:30,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1104346312] [2024-11-18 11:54:30,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1104346312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:54:30,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:54:30,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 11:54:30,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139568994] [2024-11-18 11:54:30,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:54:30,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 11:54:30,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:54:30,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 11:54:30,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-18 11:54:30,003 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) [2024-11-18 11:54:30,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:54:30,945 INFO L93 Difference]: Finished difference Result 103 states and 129 transitions. [2024-11-18 11:54:30,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 11:54:30,946 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 [2024-11-18 11:54:30,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:54:30,947 INFO L225 Difference]: With dead ends: 103 [2024-11-18 11:54:30,947 INFO L226 Difference]: Without dead ends: 37 [2024-11-18 11:54:30,948 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 [2024-11-18 11:54:30,949 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 39 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 11:54:30,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 87 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 11:54:30,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-18 11:54:30,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2024-11-18 11:54:30,956 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) [2024-11-18 11:54:30,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2024-11-18 11:54:30,957 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2024-11-18 11:54:30,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:54:30,958 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2024-11-18 11:54:30,958 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) [2024-11-18 11:54:30,958 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2024-11-18 11:54:30,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-18 11:54:30,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:54:30,959 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] [2024-11-18 11:54:30,966 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 [2024-11-18 11:54:31,160 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 [2024-11-18 11:54:31,160 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:54:31,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:54:31,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1421531895, now seen corresponding path program 1 times [2024-11-18 11:54:31,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:54:31,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624876558] [2024-11-18 11:54:31,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:54:31,162 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 [2024-11-18 11:54:31,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:54:31,165 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) [2024-11-18 11:54:31,166 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 [2024-11-18 11:54:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:54:31,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-18 11:54:31,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:54:32,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:54:32,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:54:32,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:54:32,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624876558] [2024-11-18 11:54:32,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624876558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:54:32,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:54:32,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 11:54:32,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826579378] [2024-11-18 11:54:32,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:54:32,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 11:54:32,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:54:32,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 11:54:32,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-18 11:54:32,584 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) [2024-11-18 11:54:34,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:54:34,247 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2024-11-18 11:54:34,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 11:54:34,248 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 [2024-11-18 11:54:34,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:54:34,250 INFO L225 Difference]: With dead ends: 39 [2024-11-18 11:54:34,250 INFO L226 Difference]: Without dead ends: 34 [2024-11-18 11:54:34,250 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 [2024-11-18 11:54:34,251 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 28 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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 [2024-11-18 11:54:34,251 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] [2024-11-18 11:54:34,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-18 11:54:34,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2024-11-18 11:54:34,258 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) [2024-11-18 11:54:34,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2024-11-18 11:54:34,260 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 23 [2024-11-18 11:54:34,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:54:34,261 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2024-11-18 11:54:34,261 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) [2024-11-18 11:54:34,261 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2024-11-18 11:54:34,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 11:54:34,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:54:34,263 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] [2024-11-18 11:54:34,269 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 (4)] Forceful destruction successful, exit code 0 [2024-11-18 11:54:34,465 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 [2024-11-18 11:54:34,466 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:54:34,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:54:34,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1642693520, now seen corresponding path program 1 times [2024-11-18 11:54:34,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:54:34,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861508414] [2024-11-18 11:54:34,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:54:34,467 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 [2024-11-18 11:54:34,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:54:34,470 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) [2024-11-18 11:54:34,471 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 [2024-11-18 11:54:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:54:34,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-18 11:54:34,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:54:34,748 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 [2024-11-18 11:54:34,754 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 [2024-11-18 11:54:35,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:54:35,124 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:54:35,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:54:35,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861508414] [2024-11-18 11:54:35,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861508414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:54:35,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:54:35,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 11:54:35,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142161311] [2024-11-18 11:54:35,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:54:35,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 11:54:35,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:54:35,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 11:54:35,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 11:54:35,127 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) [2024-11-18 11:54:35,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:54:35,650 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2024-11-18 11:54:35,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 11:54:35,651 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 [2024-11-18 11:54:35,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:54:35,651 INFO L225 Difference]: With dead ends: 44 [2024-11-18 11:54:35,651 INFO L226 Difference]: Without dead ends: 38 [2024-11-18 11:54:35,652 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 [2024-11-18 11:54:35,652 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 36 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2024-11-18 11:54:35,654 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] [2024-11-18 11:54:35,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-11-18 11:54:35,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-11-18 11:54:35,662 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) [2024-11-18 11:54:35,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2024-11-18 11:54:35,662 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 28 [2024-11-18 11:54:35,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:54:35,663 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2024-11-18 11:54:35,663 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) [2024-11-18 11:54:35,663 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2024-11-18 11:54:35,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 11:54:35,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:54:35,664 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] [2024-11-18 11:54:35,675 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 [2024-11-18 11:54:35,865 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 [2024-11-18 11:54:35,865 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:54:35,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:54:35,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1585435218, now seen corresponding path program 1 times [2024-11-18 11:54:35,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:54:35,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108827213] [2024-11-18 11:54:35,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:54:35,867 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 [2024-11-18 11:54:35,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:54:35,868 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) [2024-11-18 11:54:35,869 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 [2024-11-18 11:54:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:54:36,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-18 11:54:36,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:54:38,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:54:38,091 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:54:38,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:54:38,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108827213] [2024-11-18 11:54:38,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108827213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:54:38,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:54:38,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 11:54:38,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326514724] [2024-11-18 11:54:38,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:54:38,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 11:54:38,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:54:38,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 11:54:38,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-18 11:54:38,093 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) 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) [2024-11-18 11:54:41,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:54:41,461 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2024-11-18 11:54:41,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 11:54:41,462 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) 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 [2024-11-18 11:54:41,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:54:41,462 INFO L225 Difference]: With dead ends: 44 [2024-11-18 11:54:41,463 INFO L226 Difference]: Without dead ends: 29 [2024-11-18 11:54:41,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2024-11-18 11:54:41,464 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 28 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 11:54:41,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 119 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 11:54:41,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-18 11:54:41,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-18 11:54:41,468 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) [2024-11-18 11:54:41,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 28 transitions. [2024-11-18 11:54:41,468 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 28 transitions. Word has length 28 [2024-11-18 11:54:41,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:54:41,469 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 28 transitions. [2024-11-18 11:54:41,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) 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) [2024-11-18 11:54:41,469 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 28 transitions. [2024-11-18 11:54:41,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-18 11:54:41,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 11:54:41,470 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] [2024-11-18 11:54:41,478 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 (6)] Ended with exit code 0 [2024-11-18 11:54:41,670 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 [2024-11-18 11:54:41,671 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 11:54:41,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 11:54:41,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1372410098, now seen corresponding path program 1 times [2024-11-18 11:54:41,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-18 11:54:41,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78731485] [2024-11-18 11:54:41,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 11:54:41,672 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 [2024-11-18 11:54:41,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-18 11:54:41,673 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) [2024-11-18 11:54:41,675 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 [2024-11-18 11:54:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 11:54:41,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-18 11:54:41,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 11:54:42,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 11:54:42,473 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 11:54:42,473 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-18 11:54:42,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [78731485] [2024-11-18 11:54:42,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [78731485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 11:54:42,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 11:54:42,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 11:54:42,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935133696] [2024-11-18 11:54:42,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 11:54:42,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 11:54:42,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-18 11:54:42,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 11:54:42,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-18 11:54:42,475 INFO L87 Difference]: Start difference. First operand 29 states and 28 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 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) [2024-11-18 11:54:42,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 11:54:42,849 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2024-11-18 11:54:42,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 11:54:42,850 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 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 [2024-11-18 11:54:42,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 11:54:42,850 INFO L225 Difference]: With dead ends: 29 [2024-11-18 11:54:42,850 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 11:54:42,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-18 11:54:42,851 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 6 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 11:54:42,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 75 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 11:54:42,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 11:54:42,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 11:54:42,852 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) [2024-11-18 11:54:42,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 11:54:42,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2024-11-18 11:54:42,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 11:54:42,852 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 11:54:42,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 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) [2024-11-18 11:54:42,853 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 11:54:42,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 11:54:42,857 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 11:54:42,865 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 [2024-11-18 11:54:43,058 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 [2024-11-18 11:54:43,061 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-18 11:54:43,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 11:54:44,549 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 11:54:44,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:54:44 BoogieIcfgContainer [2024-11-18 11:54:44,573 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 11:54:44,574 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 11:54:44,574 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 11:54:44,574 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 11:54:44,575 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:54:28" (3/4) ... [2024-11-18 11:54:44,577 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 11:54:44,581 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2024-11-18 11:54:44,590 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-11-18 11:54:44,593 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-18 11:54:44,593 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 11:54:44,594 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 11:54:44,680 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 11:54:44,682 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 11:54:44,683 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 11:54:44,683 INFO L158 Benchmark]: Toolchain (without parser) took 19066.54ms. Allocated memory was 58.7MB in the beginning and 100.7MB in the end (delta: 41.9MB). Free memory was 35.9MB in the beginning and 47.3MB in the end (delta: -11.4MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2024-11-18 11:54:44,683 INFO L158 Benchmark]: CDTParser took 0.93ms. Allocated memory is still 46.1MB. Free memory was 27.5MB in the beginning and 27.5MB in the end (delta: 60.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 11:54:44,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.73ms. Allocated memory is still 58.7MB. Free memory was 35.7MB in the beginning and 32.8MB in the end (delta: 2.9MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2024-11-18 11:54:44,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.73ms. Allocated memory is still 58.7MB. Free memory was 32.8MB in the beginning and 30.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 11:54:44,684 INFO L158 Benchmark]: Boogie Preprocessor took 134.02ms. Allocated memory is still 58.7MB. Free memory was 30.5MB in the beginning and 25.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 11:54:44,684 INFO L158 Benchmark]: RCFGBuilder took 1987.84ms. Allocated memory was 58.7MB in the beginning and 83.9MB in the end (delta: 25.2MB). Free memory was 25.2MB in the beginning and 46.1MB in the end (delta: -20.9MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-11-18 11:54:44,685 INFO L158 Benchmark]: TraceAbstraction took 16374.26ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 45.3MB in the beginning and 52.5MB in the end (delta: -7.2MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2024-11-18 11:54:44,685 INFO L158 Benchmark]: Witness Printer took 109.02ms. Allocated memory is still 100.7MB. Free memory was 52.5MB in the beginning and 47.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-18 11:54:44,687 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93ms. Allocated memory is still 46.1MB. Free memory was 27.5MB in the beginning and 27.5MB in the end (delta: 60.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.73ms. Allocated memory is still 58.7MB. Free memory was 35.7MB in the beginning and 32.8MB in the end (delta: 2.9MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.73ms. Allocated memory is still 58.7MB. Free memory was 32.8MB in the beginning and 30.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 134.02ms. Allocated memory is still 58.7MB. Free memory was 30.5MB in the beginning and 25.2MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1987.84ms. Allocated memory was 58.7MB in the beginning and 83.9MB in the end (delta: 25.2MB). Free memory was 25.2MB in the beginning and 46.1MB in the end (delta: -20.9MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * TraceAbstraction took 16374.26ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 45.3MB in the beginning and 52.5MB in the end (delta: -7.2MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * Witness Printer took 109.02ms. Allocated memory is still 100.7MB. Free memory was 52.5MB in the beginning and 47.3MB in the end (delta: 5.2MB). 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: 14.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 137 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 137 mSDsluCounter, 588 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 389 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 409 IncrementalHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 199 mSDtfsCounter, 409 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 168 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 6.1s 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 142 ConstructedInterpolants, 78 QuantifiedInterpolants, 1821 SizeOfPredicates, 19 NumberOfNonLiveVariables, 604 ConjunctsInSsa, 84 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! [2024-11-18 11:54:44,812 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