./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_0270a.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 9489431ca2adb8b900cb4d01b5f65fcc773628acd92e39026c8afa0b8e7448c0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 16:13:56,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 16:13:56,598 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 16:13:56,605 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 16:13:56,605 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 16:13:56,624 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 16:13:56,625 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 16:13:56,626 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 16:13:56,626 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 16:13:56,626 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 16:13:56,626 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 16:13:56,627 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 16:13:56,627 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 16:13:56,627 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 16:13:56,627 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 16:13:56,628 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 16:13:56,628 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 16:13:56,628 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 16:13:56,628 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 16:13:56,628 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 16:13:56,628 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 16:13:56,628 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 16:13:56,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 16:13:56,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 16:13:56,628 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 16:13:56,629 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 16:13:56,629 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 16:13:56,629 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 16:13:56,629 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 16:13:56,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 16:13:56,629 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 16:13:56,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 16:13:56,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:13:56,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 16:13:56,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 16:13:56,630 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 16:13:56,630 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 16:13:56,630 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 16:13:56,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 16:13:56,630 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 16:13:56,630 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 16:13:56,630 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 16:13:56,630 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 16:13:56,630 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 9489431ca2adb8b900cb4d01b5f65fcc773628acd92e39026c8afa0b8e7448c0 [2025-03-16 16:13:56,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 16:13:56,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 16:13:56,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 16:13:56,856 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 16:13:56,856 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 16:13:56,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2025-03-16 16:13:57,960 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ddf9e798/10fc8f7ec61c49eb8a47bba82f392b9c/FLAGa40714298 [2025-03-16 16:13:58,147 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 16:13:58,148 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2025-03-16 16:13:58,158 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ddf9e798/10fc8f7ec61c49eb8a47bba82f392b9c/FLAGa40714298 [2025-03-16 16:13:58,519 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ddf9e798/10fc8f7ec61c49eb8a47bba82f392b9c [2025-03-16 16:13:58,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 16:13:58,523 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 16:13:58,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 16:13:58,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 16:13:58,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 16:13:58,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:13:58" (1/1) ... [2025-03-16 16:13:58,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be4c194 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:13:58, skipping insertion in model container [2025-03-16 16:13:58,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:13:58" (1/1) ... [2025-03-16 16:13:58,542 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 16:13:58,680 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_0270a.c[4702,4715] [2025-03-16 16:13:58,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:13:58,696 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 16:13:58,733 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_0270a.c[4702,4715] [2025-03-16 16:13:58,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:13:58,746 INFO L204 MainTranslator]: Completed translation [2025-03-16 16:13:58,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:13:58 WrapperNode [2025-03-16 16:13:58,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 16:13:58,748 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 16:13:58,748 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 16:13:58,748 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 16:13:58,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:13:58" (1/1) ... [2025-03-16 16:13:58,759 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:13:58" (1/1) ... [2025-03-16 16:13:58,776 INFO L138 Inliner]: procedures = 19, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 286 [2025-03-16 16:13:58,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 16:13:58,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 16:13:58,777 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 16:13:58,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 16:13:58,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:13:58" (1/1) ... [2025-03-16 16:13:58,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:13:58" (1/1) ... [2025-03-16 16:13:58,786 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:13:58" (1/1) ... [2025-03-16 16:13:58,799 INFO L175 MemorySlicer]: Split 18 memory accesses to 9 slices as follows [2, 2, 2, 2, 2, 2, 2, 2, 2]. 11 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0]. The 8 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1]. [2025-03-16 16:13:58,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:13:58" (1/1) ... [2025-03-16 16:13:58,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:13:58" (1/1) ... [2025-03-16 16:13:58,814 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:13:58" (1/1) ... [2025-03-16 16:13:58,815 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:13:58" (1/1) ... [2025-03-16 16:13:58,826 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:13:58" (1/1) ... [2025-03-16 16:13:58,827 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:13:58" (1/1) ... [2025-03-16 16:13:58,833 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 16:13:58,834 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 16:13:58,834 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 16:13:58,834 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 16:13:58,835 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:13:58" (1/1) ... [2025-03-16 16:13:58,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:13:58,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 16:13:58,861 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) [2025-03-16 16:13:58,864 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 [2025-03-16 16:13:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 16:13:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 16:13:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-16 16:13:58,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-16 16:13:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-16 16:13:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-16 16:13:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-16 16:13:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-16 16:13:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-16 16:13:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-16 16:13:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-16 16:13:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-16 16:13:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-16 16:13:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-16 16:13:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-16 16:13:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-16 16:13:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-16 16:13:58,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-16 16:13:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-16 16:13:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-03-16 16:13:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-16 16:13:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-16 16:13:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-16 16:13:58,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-16 16:13:58,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-16 16:13:58,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-16 16:13:58,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 16:13:58,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-16 16:13:58,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-16 16:13:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-16 16:13:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-16 16:13:58,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-16 16:13:58,994 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 16:13:58,995 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 16:13:59,218 INFO L? ?]: Removed 46 outVars from TransFormulas that were not future-live. [2025-03-16 16:13:59,218 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 16:13:59,233 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 16:13:59,233 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 16:13:59,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:13:59 BoogieIcfgContainer [2025-03-16 16:13:59,235 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 16:13:59,236 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 16:13:59,237 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 16:13:59,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 16:13:59,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 04:13:58" (1/3) ... [2025-03-16 16:13:59,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea2778a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:13:59, skipping insertion in model container [2025-03-16 16:13:59,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:13:58" (2/3) ... [2025-03-16 16:13:59,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea2778a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:13:59, skipping insertion in model container [2025-03-16 16:13:59,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:13:59" (3/3) ... [2025-03-16 16:13:59,242 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2025-03-16 16:13:59,251 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 16:13:59,252 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0270a.c that has 1 procedures, 71 locations, 1 initial locations, 10 loop locations, and 9 error locations. [2025-03-16 16:13:59,297 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 16:13:59,305 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;@54379e85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 16:13:59,305 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-16 16:13:59,308 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 61 states have (on average 1.9508196721311475) internal successors, (119), 70 states have internal predecessors, (119), 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) [2025-03-16 16:13:59,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-03-16 16:13:59,312 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:13:59,313 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-03-16 16:13:59,313 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 6 more)] === [2025-03-16 16:13:59,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:13:59,317 INFO L85 PathProgramCache]: Analyzing trace with hash 5343, now seen corresponding path program 1 times [2025-03-16 16:13:59,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 16:13:59,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59628442] [2025-03-16 16:13:59,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:13:59,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 16:13:59,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-16 16:13:59,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-16 16:13:59,380 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:13:59,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 16:13:59,381 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-16 16:13:59,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-16 16:13:59,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-16 16:13:59,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:13:59,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 16:13:59,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-16 16:13:59,404 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-16 16:13:59,405 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONUNSUPPORTED_FEATURE (8 of 9 remaining) [2025-03-16 16:13:59,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2025-03-16 16:13:59,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (6 of 9 remaining) [2025-03-16 16:13:59,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (5 of 9 remaining) [2025-03-16 16:13:59,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 9 remaining) [2025-03-16 16:13:59,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 9 remaining) [2025-03-16 16:13:59,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 9 remaining) [2025-03-16 16:13:59,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 9 remaining) [2025-03-16 16:13:59,407 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 9 remaining) [2025-03-16 16:13:59,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 16:13:59,412 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-16 16:13:59,421 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 16:13:59,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 04:13:59 BoogieIcfgContainer [2025-03-16 16:13:59,424 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 16:13:59,424 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 16:13:59,424 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 16:13:59,424 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 16:13:59,425 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:13:59" (3/4) ... [2025-03-16 16:13:59,426 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-16 16:13:59,427 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 16:13:59,428 INFO L158 Benchmark]: Toolchain (without parser) took 905.08ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 68.0MB in the end (delta: 55.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-16 16:13:59,428 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:13:59,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.17ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 109.9MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 16:13:59,428 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.78ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 107.0MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:13:59,428 INFO L158 Benchmark]: Boogie Preprocessor took 55.78ms. Allocated memory is still 167.8MB. Free memory was 107.0MB in the beginning and 104.0MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:13:59,429 INFO L158 Benchmark]: IcfgBuilder took 401.05ms. Allocated memory is still 167.8MB. Free memory was 104.0MB in the beginning and 82.4MB in the end (delta: 21.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-16 16:13:59,429 INFO L158 Benchmark]: TraceAbstraction took 187.39ms. Allocated memory is still 167.8MB. Free memory was 81.4MB in the beginning and 68.0MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 16:13:59,429 INFO L158 Benchmark]: Witness Printer took 2.69ms. Allocated memory is still 167.8MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:13:59,430 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.17ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 109.9MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.78ms. Allocated memory is still 167.8MB. Free memory was 109.9MB in the beginning and 107.0MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.78ms. Allocated memory is still 167.8MB. Free memory was 107.0MB in the beginning and 104.0MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 401.05ms. Allocated memory is still 167.8MB. Free memory was 104.0MB in the beginning and 82.4MB in the end (delta: 21.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 187.39ms. Allocated memory is still 167.8MB. Free memory was 81.4MB in the beginning and 68.0MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.69ms. Allocated memory is still 167.8MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 123]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 123, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of someUnaryFLOAToperation at line 111. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L195] float x = -0.0f; [L196] CALL __ieee754_asinf(x) [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000004] [L123] ieee_float_shape_type gf_u; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000004] - UnprovableResult [Line: 200]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 171]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 166]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 34]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 97]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 71 locations, 119 edges, 9 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-16 16:13:59,443 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/21.0.5-tem/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_1.6.800.v20240513-1750.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_0270a.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 9489431ca2adb8b900cb4d01b5f65fcc773628acd92e39026c8afa0b8e7448c0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 16:14:01,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 16:14:01,272 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-16 16:14:01,277 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 16:14:01,278 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 16:14:01,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 16:14:01,293 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 16:14:01,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 16:14:01,293 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 16:14:01,293 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 16:14:01,293 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 16:14:01,293 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 16:14:01,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 16:14:01,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 16:14:01,293 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 16:14:01,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 16:14:01,294 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 16:14:01,294 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 16:14:01,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 16:14:01,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:14:01,295 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 16:14:01,295 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 16:14:01,295 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 16:14:01,295 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 16:14:01,295 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-16 16:14:01,296 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-16 16:14:01,296 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 16:14:01,296 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 16:14:01,296 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 16:14:01,296 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 16:14:01,296 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 9489431ca2adb8b900cb4d01b5f65fcc773628acd92e39026c8afa0b8e7448c0 [2025-03-16 16:14:01,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 16:14:01,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 16:14:01,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 16:14:01,544 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 16:14:01,544 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 16:14:01,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2025-03-16 16:14:02,705 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c754659d4/d418ba238f1a42c3a0ac154d3202a5d5/FLAG04cad4491 [2025-03-16 16:14:02,880 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 16:14:02,881 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2025-03-16 16:14:02,887 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c754659d4/d418ba238f1a42c3a0ac154d3202a5d5/FLAG04cad4491 [2025-03-16 16:14:03,281 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c754659d4/d418ba238f1a42c3a0ac154d3202a5d5 [2025-03-16 16:14:03,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 16:14:03,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 16:14:03,285 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 16:14:03,285 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 16:14:03,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 16:14:03,288 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:14:03" (1/1) ... [2025-03-16 16:14:03,289 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f10565c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:14:03, skipping insertion in model container [2025-03-16 16:14:03,289 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:14:03" (1/1) ... [2025-03-16 16:14:03,301 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 16:14:03,437 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_0270a.c[4702,4715] [2025-03-16 16:14:03,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:14:03,450 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 16:14:03,491 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_0270a.c[4702,4715] [2025-03-16 16:14:03,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:14:03,508 INFO L204 MainTranslator]: Completed translation [2025-03-16 16:14:03,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:14:03 WrapperNode [2025-03-16 16:14:03,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 16:14:03,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 16:14:03,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 16:14:03,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 16:14:03,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:14:03" (1/1) ... [2025-03-16 16:14:03,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:14:03" (1/1) ... [2025-03-16 16:14:03,561 INFO L138 Inliner]: procedures = 22, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 251 [2025-03-16 16:14:03,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 16:14:03,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 16:14:03,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 16:14:03,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 16:14:03,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:14:03" (1/1) ... [2025-03-16 16:14:03,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:14:03" (1/1) ... [2025-03-16 16:14:03,579 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:14:03" (1/1) ... [2025-03-16 16:14:03,600 INFO L175 MemorySlicer]: Split 18 memory accesses to 9 slices as follows [2, 2, 2, 2, 2, 2, 2, 2, 2]. 11 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0]. The 8 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1]. [2025-03-16 16:14:03,603 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:14:03" (1/1) ... [2025-03-16 16:14:03,604 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:14:03" (1/1) ... [2025-03-16 16:14:03,616 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:14:03" (1/1) ... [2025-03-16 16:14:03,617 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:14:03" (1/1) ... [2025-03-16 16:14:03,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:14:03" (1/1) ... [2025-03-16 16:14:03,620 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:14:03" (1/1) ... [2025-03-16 16:14:03,622 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 16:14:03,623 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 16:14:03,623 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 16:14:03,623 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 16:14:03,624 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:14:03" (1/1) ... [2025-03-16 16:14:03,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:14:03,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 16:14:03,663 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) [2025-03-16 16:14:03,667 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 [2025-03-16 16:14:03,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 16:14:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-16 16:14:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-16 16:14:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-16 16:14:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-16 16:14:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-03-16 16:14:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2025-03-16 16:14:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2025-03-16 16:14:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2025-03-16 16:14:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2025-03-16 16:14:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-16 16:14:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-03-16 16:14:03,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-03-16 16:14:03,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-03-16 16:14:03,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-03-16 16:14:03,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2025-03-16 16:14:03,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2025-03-16 16:14:03,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2025-03-16 16:14:03,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2025-03-16 16:14:03,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2025-03-16 16:14:03,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-16 16:14:03,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-16 16:14:03,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-16 16:14:03,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-16 16:14:03,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-03-16 16:14:03,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2025-03-16 16:14:03,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2025-03-16 16:14:03,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2025-03-16 16:14:03,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2025-03-16 16:14:03,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 16:14:03,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 16:14:03,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-03-16 16:14:03,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-03-16 16:14:03,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-03-16 16:14:03,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-03-16 16:14:03,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2025-03-16 16:14:03,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2025-03-16 16:14:03,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2025-03-16 16:14:03,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2025-03-16 16:14:03,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2025-03-16 16:14:03,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-16 16:14:03,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-16 16:14:03,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-16 16:14:03,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-16 16:14:03,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-03-16 16:14:03,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2025-03-16 16:14:03,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2025-03-16 16:14:03,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2025-03-16 16:14:03,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2025-03-16 16:14:03,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-16 16:14:03,805 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 16:14:03,807 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 16:14:24,100 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2025-03-16 16:14:24,101 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 16:14:24,108 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 16:14:24,108 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 16:14:24,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:14:24 BoogieIcfgContainer [2025-03-16 16:14:24,109 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 16:14:24,111 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 16:14:24,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 16:14:24,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 16:14:24,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 04:14:03" (1/3) ... [2025-03-16 16:14:24,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592b017a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:14:24, skipping insertion in model container [2025-03-16 16:14:24,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:14:03" (2/3) ... [2025-03-16 16:14:24,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592b017a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:14:24, skipping insertion in model container [2025-03-16 16:14:24,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:14:24" (3/3) ... [2025-03-16 16:14:24,116 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2025-03-16 16:14:24,126 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 16:14:24,127 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0270a.c that has 1 procedures, 55 locations, 1 initial locations, 10 loop locations, and 1 error locations. [2025-03-16 16:14:24,161 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 16:14:24,169 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;@37e610cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 16:14:24,169 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 16:14:24,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.6981132075471699) internal successors, (90), 54 states have internal predecessors, (90), 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) [2025-03-16 16:14:24,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-16 16:14:24,180 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:14:24,180 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:14:24,181 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:14:24,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:14:24,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1106007407, now seen corresponding path program 1 times [2025-03-16 16:14:24,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:14:24,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [226209203] [2025-03-16 16:14:24,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:14:24,192 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 [2025-03-16 16:14:24,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:14:24,195 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) [2025-03-16 16:14:24,196 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 [2025-03-16 16:14:24,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-16 16:14:24,650 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-16 16:14:24,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:14:24,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:14:24,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-16 16:14:24,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:14:24,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 16:14:24,686 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:14:24,687 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:14:24,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [226209203] [2025-03-16 16:14:24,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [226209203] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:14:24,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:14:24,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 16:14:24,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598592570] [2025-03-16 16:14:24,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:14:24,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 16:14:24,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:14:24,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 16:14:24,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 16:14:24,710 INFO L87 Difference]: Start difference. First operand has 55 states, 53 states have (on average 1.6981132075471699) internal successors, (90), 54 states have internal predecessors, (90), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-03-16 16:14:24,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:14:24,725 INFO L93 Difference]: Finished difference Result 109 states and 179 transitions. [2025-03-16 16:14:24,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 16:14:24,727 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2025-03-16 16:14:24,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:14:24,732 INFO L225 Difference]: With dead ends: 109 [2025-03-16 16:14:24,732 INFO L226 Difference]: Without dead ends: 52 [2025-03-16 16:14:24,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 16:14:24,738 INFO L435 NwaCegarLoop]: 73 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, 73 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 [2025-03-16 16:14:24,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 16:14:24,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2025-03-16 16:14:24,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2025-03-16 16:14:24,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 51 states have internal predecessors, (70), 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) [2025-03-16 16:14:24,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 70 transitions. [2025-03-16 16:14:24,765 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 70 transitions. Word has length 8 [2025-03-16 16:14:24,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:14:24,766 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 70 transitions. [2025-03-16 16:14:24,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-03-16 16:14:24,766 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 70 transitions. [2025-03-16 16:14:24,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-16 16:14:24,766 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:14:24,766 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:14:24,784 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 [2025-03-16 16:14:24,967 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 [2025-03-16 16:14:24,968 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:14:24,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:14:24,968 INFO L85 PathProgramCache]: Analyzing trace with hash 542569687, now seen corresponding path program 1 times [2025-03-16 16:14:24,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:14:24,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813001274] [2025-03-16 16:14:24,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:14:24,969 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 [2025-03-16 16:14:24,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:14:24,971 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) [2025-03-16 16:14:24,973 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 [2025-03-16 16:14:25,025 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-16 16:14:25,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-16 16:14:25,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:14:25,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:14:25,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-16 16:14:25,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:14:25,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 16:14:25,973 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:14:25,973 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:14:25,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813001274] [2025-03-16 16:14:25,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813001274] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:14:25,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:14:25,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 16:14:25,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059435005] [2025-03-16 16:14:25,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:14:25,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 16:14:25,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:14:25,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 16:14:25,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 16:14:25,975 INFO L87 Difference]: Start difference. First operand 52 states and 70 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-03-16 16:14:28,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:14:28,315 INFO L93 Difference]: Finished difference Result 96 states and 127 transitions. [2025-03-16 16:14:28,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-16 16:14:28,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2025-03-16 16:14:28,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:14:28,317 INFO L225 Difference]: With dead ends: 96 [2025-03-16 16:14:28,317 INFO L226 Difference]: Without dead ends: 53 [2025-03-16 16:14:28,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-16 16:14:28,318 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 105 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-03-16 16:14:28,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 123 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-03-16 16:14:28,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2025-03-16 16:14:28,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2025-03-16 16:14:28,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.2549019607843137) internal successors, (64), 51 states have internal predecessors, (64), 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) [2025-03-16 16:14:28,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 64 transitions. [2025-03-16 16:14:28,326 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 64 transitions. Word has length 9 [2025-03-16 16:14:28,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:14:28,326 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 64 transitions. [2025-03-16 16:14:28,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2025-03-16 16:14:28,327 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 64 transitions. [2025-03-16 16:14:28,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-16 16:14:28,327 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:14:28,327 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:14:28,348 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 (3)] Ended with exit code 0 [2025-03-16 16:14:28,527 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 [2025-03-16 16:14:28,527 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:14:28,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:14:28,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1943625661, now seen corresponding path program 1 times [2025-03-16 16:14:28,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:14:28,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016173865] [2025-03-16 16:14:28,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:14:28,528 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 [2025-03-16 16:14:28,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:14:28,531 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) [2025-03-16 16:14:28,532 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 [2025-03-16 16:14:28,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-16 16:14:28,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-16 16:14:28,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:14:28,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:14:28,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-16 16:14:28,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:14:29,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 16:14:29,533 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:14:29,533 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:14:29,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016173865] [2025-03-16 16:14:29,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1016173865] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:14:29,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:14:29,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 16:14:29,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436850423] [2025-03-16 16:14:29,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:14:29,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 16:14:29,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:14:29,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 16:14:29,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 16:14:29,534 INFO L87 Difference]: Start difference. First operand 52 states and 64 transitions. Second operand has 5 states, 5 states have (on average 2.6) 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) [2025-03-16 16:14:30,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:14:30,100 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2025-03-16 16:14:30,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 16:14:30,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) 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 [2025-03-16 16:14:30,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:14:30,101 INFO L225 Difference]: With dead ends: 57 [2025-03-16 16:14:30,101 INFO L226 Difference]: Without dead ends: 54 [2025-03-16 16:14:30,101 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 16:14:30,102 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 1 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-16 16:14:30,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 219 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-16 16:14:30,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2025-03-16 16:14:30,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2025-03-16 16:14:30,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 53 states have internal predecessors, (66), 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) [2025-03-16 16:14:30,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2025-03-16 16:14:30,107 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 13 [2025-03-16 16:14:30,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:14:30,107 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2025-03-16 16:14:30,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) 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) [2025-03-16 16:14:30,107 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2025-03-16 16:14:30,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-16 16:14:30,107 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:14:30,107 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:14:30,121 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 [2025-03-16 16:14:30,308 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 [2025-03-16 16:14:30,308 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:14:30,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:14:30,308 INFO L85 PathProgramCache]: Analyzing trace with hash 2075049036, now seen corresponding path program 1 times [2025-03-16 16:14:30,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:14:30,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532552552] [2025-03-16 16:14:30,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:14:30,309 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 [2025-03-16 16:14:30,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:14:30,312 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) [2025-03-16 16:14:30,312 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 [2025-03-16 16:14:30,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-16 16:14:30,647 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-16 16:14:30,647 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:14:30,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:14:30,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-16 16:14:30,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:14:32,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 16:14:32,106 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:14:32,106 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:14:32,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532552552] [2025-03-16 16:14:32,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532552552] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:14:32,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:14:32,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-16 16:14:32,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364033740] [2025-03-16 16:14:32,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:14:32,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-16 16:14:32,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:14:32,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-16 16:14:32,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-16 16:14:32,107 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 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) [2025-03-16 16:14:33,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:14:33,631 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2025-03-16 16:14:33,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 16:14:33,631 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 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 16 [2025-03-16 16:14:33,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:14:33,632 INFO L225 Difference]: With dead ends: 60 [2025-03-16 16:14:33,632 INFO L226 Difference]: Without dead ends: 52 [2025-03-16 16:14:33,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-16 16:14:33,632 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 3 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-16 16:14:33,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 379 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-16 16:14:33,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2025-03-16 16:14:33,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2025-03-16 16:14:33,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.2352941176470589) internal successors, (63), 51 states have internal predecessors, (63), 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) [2025-03-16 16:14:33,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 63 transitions. [2025-03-16 16:14:33,638 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 63 transitions. Word has length 16 [2025-03-16 16:14:33,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:14:33,638 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 63 transitions. [2025-03-16 16:14:33,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 7 states have internal predecessors, (16), 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) [2025-03-16 16:14:33,639 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 63 transitions. [2025-03-16 16:14:33,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-16 16:14:33,639 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:14:33,639 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:14:33,652 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 (5)] Ended with exit code 0 [2025-03-16 16:14:33,840 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 [2025-03-16 16:14:33,840 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:14:33,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:14:33,840 INFO L85 PathProgramCache]: Analyzing trace with hash 247602511, now seen corresponding path program 1 times [2025-03-16 16:14:33,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:14:33,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [417307511] [2025-03-16 16:14:33,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:14:33,841 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 [2025-03-16 16:14:33,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:14:33,843 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-16 16:14:33,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2025-03-16 16:14:33,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-16 16:14:35,236 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-16 16:14:35,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:14:35,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:14:35,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-16 16:14:35,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:14:36,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 16:14:36,523 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:14:36,523 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:14:36,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [417307511] [2025-03-16 16:14:36,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [417307511] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:14:36,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:14:36,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 16:14:36,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429158743] [2025-03-16 16:14:36,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:14:36,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 16:14:36,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:14:36,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 16:14:36,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 16:14:36,524 INFO L87 Difference]: Start difference. First operand 52 states and 63 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 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) [2025-03-16 16:14:36,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:14:36,545 INFO L93 Difference]: Finished difference Result 52 states and 63 transitions. [2025-03-16 16:14:36,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 16:14:36,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 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) Word has length 31 [2025-03-16 16:14:36,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:14:36,546 INFO L225 Difference]: With dead ends: 52 [2025-03-16 16:14:36,546 INFO L226 Difference]: Without dead ends: 0 [2025-03-16 16:14:36,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-16 16:14:36,547 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 16:14:36,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 16:14:36,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-16 16:14:36,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-16 16:14:36,547 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) [2025-03-16 16:14:36,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-16 16:14:36,547 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2025-03-16 16:14:36,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:14:36,547 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-16 16:14:36,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 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) [2025-03-16 16:14:36,548 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-16 16:14:36,548 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-16 16:14:36,550 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-16 16:14:36,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2025-03-16 16:14:36,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 16:14:36,754 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-16 16:14:36,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-16 16:14:37,101 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 16:14:37,106 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2025-03-16 16:14:37,110 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-16 16:14:37,110 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2025-03-16 16:14:37,110 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-16 16:14:37,110 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-16 16:14:37,110 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-16 16:14:37,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 04:14:37 BoogieIcfgContainer [2025-03-16 16:14:37,111 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 16:14:37,111 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 16:14:37,111 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 16:14:37,111 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 16:14:37,112 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:14:24" (3/4) ... [2025-03-16 16:14:37,113 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-16 16:14:37,120 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-03-16 16:14:37,120 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2025-03-16 16:14:37,120 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-16 16:14:37,120 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-16 16:14:37,185 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-16 16:14:37,186 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-16 16:14:37,187 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 16:14:37,187 INFO L158 Benchmark]: Toolchain (without parser) took 33903.17ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 50.4MB in the end (delta: 42.4MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2025-03-16 16:14:37,188 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:14:37,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.64ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 78.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 16:14:37,188 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.48ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 76.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:14:37,188 INFO L158 Benchmark]: Boogie Preprocessor took 60.20ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 72.5MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:14:37,188 INFO L158 Benchmark]: IcfgBuilder took 20485.91ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 48.7MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-16 16:14:37,188 INFO L158 Benchmark]: TraceAbstraction took 12999.89ms. Allocated memory is still 117.4MB. Free memory was 48.3MB in the beginning and 57.9MB in the end (delta: -9.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:14:37,188 INFO L158 Benchmark]: Witness Printer took 75.75ms. Allocated memory is still 117.4MB. Free memory was 57.9MB in the beginning and 50.4MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:14:37,189 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.64ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 78.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.48ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 76.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 60.20ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 72.5MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 20485.91ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 48.7MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 12999.89ms. Allocated memory is still 117.4MB. Free memory was 48.3MB in the beginning and 57.9MB in the end (delta: -9.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 75.75ms. Allocated memory is still 117.4MB. Free memory was 57.9MB in the beginning and 50.4MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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: 200]: 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, 55 locations, 90 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109 mSDsluCounter, 801 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 554 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 111 IncrementalHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 247 mSDtfsCounter, 111 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 25, 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, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 72 ConstructedInterpolants, 1 QuantifiedInterpolants, 355 SizeOfPredicates, 10 NumberOfNonLiveVariables, 372 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 96]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 165]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 94]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 64]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 87]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 33]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 50]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 162]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-03-16 16:14:37,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE