./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1071.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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_1071.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 55d78fe353fd0931b2d447fd45670a80ea73f6385110d8a7ff7bce3171c541bd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 05:20:41,066 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 05:20:41,104 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 05:20:41,107 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 05:20:41,120 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 05:20:41,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 05:20:41,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 05:20:41,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 05:20:41,159 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 05:20:41,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 05:20:41,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 05:20:41,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 05:20:41,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 05:20:41,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 05:20:41,163 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 05:20:41,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 05:20:41,164 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 05:20:41,164 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 05:20:41,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 05:20:41,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 05:20:41,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 05:20:41,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 05:20:41,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 05:20:41,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 05:20:41,168 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 05:20:41,168 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 05:20:41,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 05:20:41,168 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 05:20:41,169 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 05:20:41,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 05:20:41,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 05:20:41,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 05:20:41,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 05:20:41,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 05:20:41,170 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 05:20:41,170 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 05:20:41,170 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 05:20:41,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 05:20:41,171 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 05:20:41,171 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 05:20:41,171 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 05:20:41,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 05:20:41,172 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55d78fe353fd0931b2d447fd45670a80ea73f6385110d8a7ff7bce3171c541bd [2024-11-16 05:20:41,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 05:20:41,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 05:20:41,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 05:20:41,385 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 05:20:41,388 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 05:20:41,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1071.c [2024-11-16 05:20:42,757 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 05:20:42,970 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 05:20:42,971 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1071.c [2024-11-16 05:20:42,979 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f527f1c8/543d3dae2d6347a49d1298307cb31988/FLAG70b238f6e [2024-11-16 05:20:43,328 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f527f1c8/543d3dae2d6347a49d1298307cb31988 [2024-11-16 05:20:43,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 05:20:43,334 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 05:20:43,335 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 05:20:43,338 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 05:20:43,343 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 05:20:43,344 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:20:43" (1/1) ... [2024-11-16 05:20:43,344 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4b4063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:43, skipping insertion in model container [2024-11-16 05:20:43,345 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:20:43" (1/1) ... [2024-11-16 05:20:43,363 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 05:20:43,591 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_1071.c[1429,1442] [2024-11-16 05:20:43,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 05:20:43,602 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 05:20:43,625 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_1071.c[1429,1442] [2024-11-16 05:20:43,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 05:20:43,642 INFO L204 MainTranslator]: Completed translation [2024-11-16 05:20:43,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:43 WrapperNode [2024-11-16 05:20:43,645 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 05:20:43,646 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 05:20:43,646 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 05:20:43,646 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 05:20:43,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:43" (1/1) ... [2024-11-16 05:20:43,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:43" (1/1) ... [2024-11-16 05:20:43,679 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 102 [2024-11-16 05:20:43,679 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 05:20:43,680 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 05:20:43,680 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 05:20:43,680 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 05:20:43,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:43" (1/1) ... [2024-11-16 05:20:43,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:43" (1/1) ... [2024-11-16 05:20:43,698 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:43" (1/1) ... [2024-11-16 05:20:43,708 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-11-16 05:20:43,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:43" (1/1) ... [2024-11-16 05:20:43,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:43" (1/1) ... [2024-11-16 05:20:43,715 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:43" (1/1) ... [2024-11-16 05:20:43,716 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:43" (1/1) ... [2024-11-16 05:20:43,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:43" (1/1) ... [2024-11-16 05:20:43,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:43" (1/1) ... [2024-11-16 05:20:43,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 05:20:43,722 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 05:20:43,722 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 05:20:43,722 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 05:20:43,722 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:43" (1/1) ... [2024-11-16 05:20:43,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 05:20:43,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 05:20:43,756 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) [2024-11-16 05:20:43,758 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 [2024-11-16 05:20:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 05:20:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 05:20:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 05:20:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 05:20:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 05:20:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 05:20:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-16 05:20:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-16 05:20:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-16 05:20:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-16 05:20:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 05:20:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 05:20:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 05:20:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 05:20:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-16 05:20:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-16 05:20:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-16 05:20:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-16 05:20:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 05:20:43,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 05:20:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 05:20:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 05:20:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 05:20:43,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 05:20:43,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 05:20:43,885 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 05:20:43,886 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 05:20:44,062 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-16 05:20:44,062 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 05:20:44,082 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 05:20:44,083 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 05:20:44,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:20:44 BoogieIcfgContainer [2024-11-16 05:20:44,083 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 05:20:44,085 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 05:20:44,085 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 05:20:44,088 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 05:20:44,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 05:20:43" (1/3) ... [2024-11-16 05:20:44,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebb9d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:20:44, skipping insertion in model container [2024-11-16 05:20:44,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:43" (2/3) ... [2024-11-16 05:20:44,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ebb9d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:20:44, skipping insertion in model container [2024-11-16 05:20:44,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:20:44" (3/3) ... [2024-11-16 05:20:44,090 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071.c [2024-11-16 05:20:44,103 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 05:20:44,104 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 05:20:44,154 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 05:20:44,161 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;@642ac0f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 05:20:44,161 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 05:20:44,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 34 states have internal predecessors, (51), 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) [2024-11-16 05:20:44,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-16 05:20:44,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:20:44,171 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:20:44,172 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:20:44,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:20:44,177 INFO L85 PathProgramCache]: Analyzing trace with hash 760073045, now seen corresponding path program 1 times [2024-11-16 05:20:44,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 05:20:44,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882367726] [2024-11-16 05:20:44,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:20:44,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 05:20:44,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:20:44,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:20:44,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 05:20:44,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882367726] [2024-11-16 05:20:44,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882367726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:20:44,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:20:44,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 05:20:44,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720327143] [2024-11-16 05:20:44,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:20:44,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 05:20:44,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 05:20:44,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 05:20:44,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 05:20:44,346 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 34 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-11-16 05:20:44,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:20:44,374 INFO L93 Difference]: Finished difference Result 67 states and 99 transitions. [2024-11-16 05:20:44,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 05:20:44,377 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2024-11-16 05:20:44,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:20:44,383 INFO L225 Difference]: With dead ends: 67 [2024-11-16 05:20:44,383 INFO L226 Difference]: Without dead ends: 31 [2024-11-16 05:20:44,385 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 [2024-11-16 05:20:44,389 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 05:20:44,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 05:20:44,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-16 05:20:44,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-16 05:20:44,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 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) [2024-11-16 05:20:44,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2024-11-16 05:20:44,418 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 40 transitions. Word has length 12 [2024-11-16 05:20:44,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:20:44,418 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 40 transitions. [2024-11-16 05:20:44,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-11-16 05:20:44,419 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2024-11-16 05:20:44,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-16 05:20:44,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:20:44,420 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:20:44,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 05:20:44,421 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:20:44,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:20:44,422 INFO L85 PathProgramCache]: Analyzing trace with hash -117000591, now seen corresponding path program 1 times [2024-11-16 05:20:44,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 05:20:44,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935628613] [2024-11-16 05:20:44,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:20:44,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 05:20:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:20:44,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:20:44,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 05:20:44,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935628613] [2024-11-16 05:20:44,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935628613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:20:44,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:20:44,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 05:20:44,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533605028] [2024-11-16 05:20:44,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:20:44,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 05:20:44,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 05:20:44,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 05:20:44,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 05:20:44,626 INFO L87 Difference]: Start difference. First operand 31 states and 40 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:20:44,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:20:44,656 INFO L93 Difference]: Finished difference Result 52 states and 68 transitions. [2024-11-16 05:20:44,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 05:20:44,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-16 05:20:44,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:20:44,657 INFO L225 Difference]: With dead ends: 52 [2024-11-16 05:20:44,657 INFO L226 Difference]: Without dead ends: 34 [2024-11-16 05:20:44,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 05:20:44,659 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 1 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 05:20:44,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 87 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 05:20:44,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-16 05:20:44,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-16 05:20:44,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.303030303030303) internal successors, (43), 33 states have internal predecessors, (43), 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) [2024-11-16 05:20:44,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2024-11-16 05:20:44,663 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 43 transitions. Word has length 13 [2024-11-16 05:20:44,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:20:44,663 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 43 transitions. [2024-11-16 05:20:44,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:20:44,663 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2024-11-16 05:20:44,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-16 05:20:44,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:20:44,664 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:20:44,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 05:20:44,664 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:20:44,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:20:44,665 INFO L85 PathProgramCache]: Analyzing trace with hash 413347413, now seen corresponding path program 1 times [2024-11-16 05:20:44,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 05:20:44,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660607403] [2024-11-16 05:20:44,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:20:44,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 05:20:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:20:44,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:20:44,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 05:20:44,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660607403] [2024-11-16 05:20:44,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660607403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:20:44,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:20:44,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 05:20:44,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474878302] [2024-11-16 05:20:44,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:20:44,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 05:20:44,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 05:20:44,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 05:20:44,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 05:20:44,808 INFO L87 Difference]: Start difference. First operand 34 states and 43 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-16 05:20:44,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:20:44,845 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2024-11-16 05:20:44,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 05:20:44,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-11-16 05:20:44,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:20:44,846 INFO L225 Difference]: With dead ends: 41 [2024-11-16 05:20:44,847 INFO L226 Difference]: Without dead ends: 36 [2024-11-16 05:20:44,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 05:20:44,848 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 19 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 05:20:44,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 67 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 05:20:44,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-16 05:20:44,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2024-11-16 05:20:44,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 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) [2024-11-16 05:20:44,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2024-11-16 05:20:44,856 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 14 [2024-11-16 05:20:44,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:20:44,856 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2024-11-16 05:20:44,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-16 05:20:44,856 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-16 05:20:44,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-16 05:20:44,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:20:44,856 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:20:44,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 05:20:44,857 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:20:44,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:20:44,857 INFO L85 PathProgramCache]: Analyzing trace with hash -40593390, now seen corresponding path program 1 times [2024-11-16 05:20:44,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 05:20:44,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22550469] [2024-11-16 05:20:44,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:20:44,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 05:20:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 05:20:44,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 05:20:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 05:20:44,942 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 05:20:44,943 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 05:20:44,944 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 05:20:44,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 05:20:44,948 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-16 05:20:44,963 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 05:20:44,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 05:20:44 BoogieIcfgContainer [2024-11-16 05:20:44,966 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 05:20:44,966 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 05:20:44,967 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 05:20:44,967 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 05:20:44,967 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:20:44" (3/4) ... [2024-11-16 05:20:44,969 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-16 05:20:44,970 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 05:20:44,971 INFO L158 Benchmark]: Toolchain (without parser) took 1636.18ms. Allocated memory is still 207.6MB. Free memory was 178.5MB in the beginning and 141.7MB in the end (delta: 36.8MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2024-11-16 05:20:44,971 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 134.2MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 05:20:44,972 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.17ms. Allocated memory is still 207.6MB. Free memory was 178.2MB in the beginning and 169.0MB in the end (delta: 9.2MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2024-11-16 05:20:44,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.42ms. Allocated memory is still 207.6MB. Free memory was 169.0MB in the beginning and 166.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 05:20:44,973 INFO L158 Benchmark]: Boogie Preprocessor took 41.03ms. Allocated memory is still 207.6MB. Free memory was 166.9MB in the beginning and 164.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 05:20:44,974 INFO L158 Benchmark]: IcfgBuilder took 361.62ms. Allocated memory is still 207.6MB. Free memory was 164.8MB in the beginning and 147.0MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-16 05:20:44,975 INFO L158 Benchmark]: TraceAbstraction took 881.24ms. Allocated memory is still 207.6MB. Free memory was 147.0MB in the beginning and 142.8MB in the end (delta: 4.3MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2024-11-16 05:20:44,975 INFO L158 Benchmark]: Witness Printer took 3.65ms. Allocated memory is still 207.6MB. Free memory was 142.8MB in the beginning and 141.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 05:20:44,976 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 134.2MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.17ms. Allocated memory is still 207.6MB. Free memory was 178.2MB in the beginning and 169.0MB in the end (delta: 9.2MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.42ms. Allocated memory is still 207.6MB. Free memory was 169.0MB in the beginning and 166.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.03ms. Allocated memory is still 207.6MB. Free memory was 166.9MB in the beginning and 164.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 361.62ms. Allocated memory is still 207.6MB. Free memory was 164.8MB in the beginning and 147.0MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 881.24ms. Allocated memory is still 207.6MB. Free memory was 147.0MB in the beginning and 142.8MB in the end (delta: 4.3MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. * Witness Printer took 3.65ms. Allocated memory is still 207.6MB. Free memory was 142.8MB in the beginning and 141.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 59]: 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 46, overapproximation of someBinaryArithmeticFLOAToperation at line 54. Possible FailurePath: [L54] float x = 0.0f / 0.0f; [L55] CALL, EXPR trunc_float(x) [L15] __int32_t signbit, w, exponent_less_127; VAL [x=6434062345] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L20] COND FALSE !(0) VAL [w=2139095040, x=6434062345] [L21] signbit = w & 0x80000000 VAL [signbit=0, w=2139095040, x=6434062345] [L22] EXPR w & 0x7f800000 VAL [signbit=0, w=2139095040, x=6434062345] [L22] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 [L23] COND FALSE !(exponent_less_127 < 23) [L39] COND FALSE !(exponent_less_127 == 255) VAL [signbit=0, w=2139095040, x=6434062345] [L42] return x; VAL [\result=6434062345, signbit=0, w=2139095040] [L55] RET, EXPR trunc_float(x) [L55] float res = trunc_float(x); [L58] CALL, EXPR isnan_float(res) [L46] return x != x; VAL [\result=0] [L58] RET, EXPR isnan_float(res) [L58] COND TRUE !isnan_float(res) [L59] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 193 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 101 mSDtfsCounter, 68 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 52 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-16 05:20:44,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1071.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 55d78fe353fd0931b2d447fd45670a80ea73f6385110d8a7ff7bce3171c541bd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 05:20:47,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 05:20:47,289 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-16 05:20:47,292 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 05:20:47,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 05:20:47,318 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 05:20:47,320 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 05:20:47,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 05:20:47,321 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 05:20:47,322 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 05:20:47,322 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 05:20:47,323 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 05:20:47,323 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 05:20:47,323 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 05:20:47,324 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 05:20:47,326 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 05:20:47,326 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 05:20:47,327 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 05:20:47,327 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 05:20:47,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 05:20:47,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 05:20:47,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 05:20:47,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 05:20:47,330 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-16 05:20:47,330 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-16 05:20:47,330 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 05:20:47,330 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-16 05:20:47,330 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 05:20:47,330 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 05:20:47,331 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 05:20:47,331 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 05:20:47,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 05:20:47,331 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 05:20:47,331 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 05:20:47,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 05:20:47,332 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 05:20:47,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 05:20:47,332 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 05:20:47,332 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-16 05:20:47,332 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-16 05:20:47,332 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 05:20:47,334 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 05:20:47,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 05:20:47,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 05:20:47,335 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55d78fe353fd0931b2d447fd45670a80ea73f6385110d8a7ff7bce3171c541bd [2024-11-16 05:20:47,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 05:20:47,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 05:20:47,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 05:20:47,598 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 05:20:47,598 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 05:20:47,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1071.c [2024-11-16 05:20:48,973 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 05:20:49,149 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 05:20:49,155 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1071.c [2024-11-16 05:20:49,168 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa91080d4/fc3e23bccd3f46fb82c2a3da18ddffb6/FLAG3981148d8 [2024-11-16 05:20:49,182 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa91080d4/fc3e23bccd3f46fb82c2a3da18ddffb6 [2024-11-16 05:20:49,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 05:20:49,186 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 05:20:49,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 05:20:49,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 05:20:49,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 05:20:49,193 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:20:49" (1/1) ... [2024-11-16 05:20:49,194 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@99d277c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:49, skipping insertion in model container [2024-11-16 05:20:49,194 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 05:20:49" (1/1) ... [2024-11-16 05:20:49,210 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 05:20:49,362 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_1071.c[1429,1442] [2024-11-16 05:20:49,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 05:20:49,378 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 05:20:49,397 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_1071.c[1429,1442] [2024-11-16 05:20:49,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 05:20:49,418 INFO L204 MainTranslator]: Completed translation [2024-11-16 05:20:49,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:49 WrapperNode [2024-11-16 05:20:49,419 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 05:20:49,420 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 05:20:49,420 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 05:20:49,420 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 05:20:49,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:49" (1/1) ... [2024-11-16 05:20:49,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:49" (1/1) ... [2024-11-16 05:20:49,457 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2024-11-16 05:20:49,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 05:20:49,459 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 05:20:49,459 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 05:20:49,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 05:20:49,466 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:49" (1/1) ... [2024-11-16 05:20:49,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:49" (1/1) ... [2024-11-16 05:20:49,470 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:49" (1/1) ... [2024-11-16 05:20:49,480 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-11-16 05:20:49,481 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:49" (1/1) ... [2024-11-16 05:20:49,481 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:49" (1/1) ... [2024-11-16 05:20:49,488 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:49" (1/1) ... [2024-11-16 05:20:49,492 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:49" (1/1) ... [2024-11-16 05:20:49,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:49" (1/1) ... [2024-11-16 05:20:49,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:49" (1/1) ... [2024-11-16 05:20:49,500 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 05:20:49,501 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 05:20:49,501 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 05:20:49,501 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 05:20:49,502 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:49" (1/1) ... [2024-11-16 05:20:49,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 05:20:49,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 05:20:49,534 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) [2024-11-16 05:20:49,538 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 [2024-11-16 05:20:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 05:20:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-16 05:20:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-16 05:20:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-16 05:20:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-16 05:20:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-16 05:20:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-16 05:20:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-16 05:20:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-16 05:20:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-16 05:20:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-16 05:20:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-16 05:20:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-16 05:20:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-16 05:20:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 05:20:49,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 05:20:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-16 05:20:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-16 05:20:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-16 05:20:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-16 05:20:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-16 05:20:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-16 05:20:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-16 05:20:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-16 05:20:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 05:20:49,641 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 05:20:49,643 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 05:20:49,806 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-16 05:20:49,806 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 05:20:49,822 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 05:20:49,822 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 05:20:49,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:20:49 BoogieIcfgContainer [2024-11-16 05:20:49,822 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 05:20:49,824 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 05:20:49,824 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 05:20:49,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 05:20:49,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 05:20:49" (1/3) ... [2024-11-16 05:20:49,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245bd3dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:20:49, skipping insertion in model container [2024-11-16 05:20:49,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 05:20:49" (2/3) ... [2024-11-16 05:20:49,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245bd3dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 05:20:49, skipping insertion in model container [2024-11-16 05:20:49,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:20:49" (3/3) ... [2024-11-16 05:20:49,829 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071.c [2024-11-16 05:20:49,842 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 05:20:49,842 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 05:20:49,889 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 05:20:49,895 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;@51088bed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 05:20:49,895 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 05:20:49,901 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.55) internal successors, (31), 21 states have internal predecessors, (31), 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) [2024-11-16 05:20:49,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-16 05:20:49,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:20:49,907 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:20:49,908 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:20:49,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:20:49,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1718040438, now seen corresponding path program 1 times [2024-11-16 05:20:49,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 05:20:49,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [777626331] [2024-11-16 05:20:49,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:20:49,925 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 [2024-11-16 05:20:49,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 05:20:49,928 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) [2024-11-16 05:20:49,929 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 [2024-11-16 05:20:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:20:50,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-16 05:20:50,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 05:20:50,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:20:50,032 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 05:20:50,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 05:20:50,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [777626331] [2024-11-16 05:20:50,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [777626331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:20:50,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:20:50,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 05:20:50,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412225917] [2024-11-16 05:20:50,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:20:50,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 05:20:50,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 05:20:50,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 05:20:50,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 05:20:50,062 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.55) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:20:50,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:20:50,074 INFO L93 Difference]: Finished difference Result 41 states and 59 transitions. [2024-11-16 05:20:50,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 05:20:50,076 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-16 05:20:50,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:20:50,081 INFO L225 Difference]: With dead ends: 41 [2024-11-16 05:20:50,082 INFO L226 Difference]: Without dead ends: 18 [2024-11-16 05:20:50,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 05:20:50,088 INFO L432 NwaCegarLoop]: 23 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, 23 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 [2024-11-16 05:20:50,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 05:20:50,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-16 05:20:50,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-16 05:20:50,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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) [2024-11-16 05:20:50,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2024-11-16 05:20:50,118 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2024-11-16 05:20:50,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:20:50,119 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2024-11-16 05:20:50,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:20:50,119 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-11-16 05:20:50,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-16 05:20:50,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:20:50,121 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:20:50,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-16 05:20:50,324 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 [2024-11-16 05:20:50,325 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:20:50,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:20:50,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1961326458, now seen corresponding path program 1 times [2024-11-16 05:20:50,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 05:20:50,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [227905972] [2024-11-16 05:20:50,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:20:50,327 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 [2024-11-16 05:20:50,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 05:20:50,331 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) [2024-11-16 05:20:50,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-16 05:20:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:20:50,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 05:20:50,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 05:20:50,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:20:50,491 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 05:20:50,491 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 05:20:50,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [227905972] [2024-11-16 05:20:50,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [227905972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:20:50,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:20:50,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 05:20:50,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232691782] [2024-11-16 05:20:50,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:20:50,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 05:20:50,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 05:20:50,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 05:20:50,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 05:20:50,497 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:20:50,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:20:50,544 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2024-11-16 05:20:50,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 05:20:50,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-16 05:20:50,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:20:50,546 INFO L225 Difference]: With dead ends: 25 [2024-11-16 05:20:50,546 INFO L226 Difference]: Without dead ends: 20 [2024-11-16 05:20:50,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 05:20:50,548 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 05:20:50,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 26 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 05:20:50,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-16 05:20:50,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2024-11-16 05:20:50,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:20:50,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2024-11-16 05:20:50,552 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 11 [2024-11-16 05:20:50,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:20:50,553 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2024-11-16 05:20:50,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:20:50,553 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2024-11-16 05:20:50,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-16 05:20:50,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:20:50,555 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:20:50,562 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 [2024-11-16 05:20:50,756 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 [2024-11-16 05:20:50,757 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:20:50,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:20:50,758 INFO L85 PathProgramCache]: Analyzing trace with hash 702116749, now seen corresponding path program 1 times [2024-11-16 05:20:50,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 05:20:50,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1331067634] [2024-11-16 05:20:50,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:20:50,759 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 [2024-11-16 05:20:50,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 05:20:50,761 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) [2024-11-16 05:20:50,762 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 [2024-11-16 05:20:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:20:50,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-16 05:20:50,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 05:20:50,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:20:50,919 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 05:20:50,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 05:20:50,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1331067634] [2024-11-16 05:20:50,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1331067634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:20:50,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:20:50,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 05:20:50,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762384384] [2024-11-16 05:20:50,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:20:50,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 05:20:50,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 05:20:50,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 05:20:50,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 05:20:50,922 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-11-16 05:20:50,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:20:50,976 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2024-11-16 05:20:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 05:20:50,976 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2024-11-16 05:20:50,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:20:50,977 INFO L225 Difference]: With dead ends: 24 [2024-11-16 05:20:50,977 INFO L226 Difference]: Without dead ends: 17 [2024-11-16 05:20:50,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 05:20:50,978 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 05:20:50,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 62 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 05:20:50,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-16 05:20:50,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-16 05:20:50,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 05:20:50,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2024-11-16 05:20:50,982 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 12 [2024-11-16 05:20:50,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:20:50,982 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2024-11-16 05:20:50,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-11-16 05:20:50,982 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2024-11-16 05:20:50,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-16 05:20:50,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 05:20:50,983 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 05:20:50,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-16 05:20:51,183 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 [2024-11-16 05:20:51,184 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 05:20:51,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 05:20:51,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1987210958, now seen corresponding path program 1 times [2024-11-16 05:20:51,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-16 05:20:51,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498128552] [2024-11-16 05:20:51,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 05:20:51,186 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 [2024-11-16 05:20:51,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-16 05:20:51,189 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) [2024-11-16 05:20:51,192 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 [2024-11-16 05:20:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 05:20:51,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 05:20:51,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 05:20:51,330 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 [2024-11-16 05:20:51,335 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 [2024-11-16 05:20:51,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 05:20:51,420 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 05:20:51,420 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-16 05:20:51,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498128552] [2024-11-16 05:20:51,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498128552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 05:20:51,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 05:20:51,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 05:20:51,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399554854] [2024-11-16 05:20:51,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 05:20:51,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 05:20:51,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-16 05:20:51,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 05:20:51,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 05:20:51,422 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-11-16 05:20:51,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 05:20:51,488 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2024-11-16 05:20:51,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 05:20:51,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2024-11-16 05:20:51,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 05:20:51,489 INFO L225 Difference]: With dead ends: 17 [2024-11-16 05:20:51,489 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 05:20:51,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 05:20:51,490 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 05:20:51,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 05:20:51,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 05:20:51,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 05:20:51,491 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) [2024-11-16 05:20:51,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 05:20:51,491 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-11-16 05:20:51,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 05:20:51,491 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 05:20:51,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-11-16 05:20:51,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 05:20:51,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 05:20:51,495 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 05:20:51,504 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 [2024-11-16 05:20:51,696 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 [2024-11-16 05:20:51,701 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-16 05:20:51,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 05:20:51,718 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 05:20:51,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 05:20:51 BoogieIcfgContainer [2024-11-16 05:20:51,726 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 05:20:51,727 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 05:20:51,727 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 05:20:51,727 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 05:20:51,727 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 05:20:49" (3/4) ... [2024-11-16 05:20:51,729 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 05:20:51,736 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-11-16 05:20:51,736 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-16 05:20:51,736 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 05:20:51,736 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 05:20:51,922 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 05:20:51,923 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 05:20:51,923 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 05:20:51,924 INFO L158 Benchmark]: Toolchain (without parser) took 2737.44ms. Allocated memory was 75.5MB in the beginning and 117.4MB in the end (delta: 41.9MB). Free memory was 36.0MB in the beginning and 90.1MB in the end (delta: -54.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2024-11-16 05:20:51,925 INFO L158 Benchmark]: CDTParser took 0.85ms. Allocated memory is still 75.5MB. Free memory is still 44.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 05:20:51,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.91ms. Allocated memory is still 75.5MB. Free memory was 35.8MB in the beginning and 43.6MB in the end (delta: -7.8MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2024-11-16 05:20:51,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.21ms. Allocated memory is still 75.5MB. Free memory was 43.6MB in the beginning and 42.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 05:20:51,927 INFO L158 Benchmark]: Boogie Preprocessor took 41.71ms. Allocated memory is still 75.5MB. Free memory was 41.8MB in the beginning and 39.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 05:20:51,927 INFO L158 Benchmark]: IcfgBuilder took 321.59ms. Allocated memory was 75.5MB in the beginning and 117.4MB in the end (delta: 41.9MB). Free memory was 39.4MB in the beginning and 90.8MB in the end (delta: -51.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 05:20:51,928 INFO L158 Benchmark]: TraceAbstraction took 1902.02ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 63.8MB in the end (delta: 26.5MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2024-11-16 05:20:51,928 INFO L158 Benchmark]: Witness Printer took 196.62ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 90.1MB in the end (delta: -26.3MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-11-16 05:20:51,929 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85ms. Allocated memory is still 75.5MB. Free memory is still 44.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.91ms. Allocated memory is still 75.5MB. Free memory was 35.8MB in the beginning and 43.6MB in the end (delta: -7.8MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.21ms. Allocated memory is still 75.5MB. Free memory was 43.6MB in the beginning and 42.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.71ms. Allocated memory is still 75.5MB. Free memory was 41.8MB in the beginning and 39.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 321.59ms. Allocated memory was 75.5MB in the beginning and 117.4MB in the end (delta: 41.9MB). Free memory was 39.4MB in the beginning and 90.8MB in the end (delta: -51.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1902.02ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 63.8MB in the end (delta: 26.5MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * Witness Printer took 196.62ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 90.1MB in the end (delta: -26.3MB). Peak memory consumption was 4.4MB. 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: 59]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 56 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 13 QuantifiedInterpolants, 165 SizeOfPredicates, 7 NumberOfNonLiveVariables, 164 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 16]: Location Invariant Derived location invariant: null - InvariantResult [Line: 26]: Location Invariant Derived location invariant: null - InvariantResult [Line: 32]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 05:20:51,952 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