./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/divbin_valuebound2.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5189fb62 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReachWitnessValidation.xml -i ../sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i ../results/automizer-verification-files/SV-COMP24_unreach-call/divbin_valuebound2.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-5189fb6-m [2024-09-13 05:33:38,508 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 05:33:38,554 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-13 05:33:38,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 05:33:38,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 05:33:38,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 05:33:38,580 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 05:33:38,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 05:33:38,596 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 05:33:38,596 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 05:33:38,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 05:33:38,596 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 05:33:38,597 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 05:33:38,600 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 05:33:38,600 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 05:33:38,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 05:33:38,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 05:33:38,601 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 05:33:38,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 05:33:38,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 05:33:38,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 05:33:38,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 05:33:38,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 05:33:38,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 05:33:38,603 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 05:33:38,603 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 05:33:38,603 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 05:33:38,603 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 05:33:38,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 05:33:38,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 05:33:38,604 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 05:33:38,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 05:33:38,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:33:38,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 05:33:38,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 05:33:38,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 05:33:38,605 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 05:33:38,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 05:33:38,606 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 05:33:38,606 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 05:33:38,606 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 05:33:38,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 05:33:38,607 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 05:33:38,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 05:33:38,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 05:33:38,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 05:33:38,810 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 05:33:38,810 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 05:33:38,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/divbin_valuebound2.yml/witness-2.1.yml [2024-09-13 05:33:38,869 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 05:33:38,872 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 05:33:38,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i [2024-09-13 05:33:40,046 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 05:33:40,206 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 05:33:40,208 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i [2024-09-13 05:33:40,213 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/f80508f2c/7972d2ae9b0a46fd837b517d286320ef/FLAG122c9929f [2024-09-13 05:33:40,623 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/f80508f2c/7972d2ae9b0a46fd837b517d286320ef [2024-09-13 05:33:40,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 05:33:40,624 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-13 05:33:40,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 05:33:40,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 05:33:40,632 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 05:33:40,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:33:38" (1/2) ... [2024-09-13 05:33:40,633 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1228932f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:33:40, skipping insertion in model container [2024-09-13 05:33:40,634 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:33:38" (1/2) ... [2024-09-13 05:33:40,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@41596c82 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:33:40, skipping insertion in model container [2024-09-13 05:33:40,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:33:40" (2/2) ... [2024-09-13 05:33:40,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1228932f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:33:40, skipping insertion in model container [2024-09-13 05:33:40,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:33:40" (2/2) ... [2024-09-13 05:33:40,643 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 05:33:40,644 INFO L1541 ArrayList]: Loop invariant at [L41-L50] ((((((((((((B % 4294967296) <= 2) && (q == 0)) && (((long long) (r % 4294967296) + 1) <= (b % 4294967296))) && (((long long) B * 2) == b)) && ((r % 4294967296) <= 2)) || ((((((((b + r) % 4294967296) == (A % 4294967296)) && ((B + (((((((((long long) 1073741824 * r) + ((long long) -2147483648 * (b / 2))) + ((long long) 1073741824 * b)) + 1537228670661645652) + ((unsigned long long) 2863311531 * B)) + (-1073741824 * (((((long long) r * 715827882) + ((long long) 715827883 * b)) + ((long long) -2 * B)) / 2147483648))) / 1537228673524957184) * 2147483648)) <= (((((B / 4294967296) * 34359738368) + ((b / 4294967296) * 4294967296)) + (((((long long) r + 3) + ((long long) B * -3)) / 4294967296) * 4294967296)) + 1))) && (((b + r) % 4294967296) <= (2 + ((((b + r) % 4294967296) / 4294967296) * 4294967296)))) && (1 <= (B % 4294967296))) && (q == 1)) && (b <= 2147483646))) || (((((((b == 1) && ((r % 4294967296) <= 0)) && (q == 2)) && ((((A / 4294967296) * 4294967296) + ((long long) B * 4)) <= (((long long) A + 8) + (17179869184 * (B / 4294967296))))) && ((A % 4294967296) == 2)) && (1 <= (B % 4294967296))) && ((B % 2147483648) <= 1))) || ((((((((long long) (r % 4294967296) + 1) <= ((B % 2147483648) * 2)) && ((B % 4294967296) <= 2)) && ((r % 4294967296) == (A % 4294967296))) && ((B % 2147483648) == b)) && (q == 0)) && ((r % 4294967296) <= 2))) || ((((b + ((B / 4294967296) * 4294967296)) == (B + ((b / 4294967296) * 4294967296))) && ((B / 4294967296) <= (b / 4294967296))) && (((A / 4294967296) + (b / 4294967296)) <= ((r / 4294967296) + (B / 4294967296))))) || (((((((b + ((B / 4294967296) * 4294967296)) == (B + ((b / 4294967296) * 4294967296))) && (((b + r) % 4294967296) == (A % 4294967296))) && ((B % 4294967296) <= 2)) && (1 <= (B % 4294967296))) && (q == 1)) && ((A % 4294967296) <= 2))) || ((((((((((B % 2147483648) * 2) <= (r % 4294967296)) && (((B + ((r / 4294967296) * 4294967296)) + ((((((((long long) 1073741824 * r) + (((((int) -1 * (b / 2)) + 1) / 2) * 2147483648)) + 1537228670661645652) + ((unsigned long long) 2863311531 * B)) + ((A / 4294967296) * -6148914691952345088)) / 1537228673524957184) * 2147483648)) <= ((((((A / 4294967296) * 2147483648) + ((b / 4294967296) * 4294967296)) + ((((((-6442450944 * (r / 4294967296)) + 3) + ((A / 4294967296) * 6442450944)) + ((long long) B * -3)) / 4294967296) * 4294967296)) + ((B / 4294967296) * 4294967296)) + 1))) && (1 <= (B % 4294967296))) && (b <= ((long long) B * 4))) && (q == 0)) && ((((long long) B * 2) + ((A / 4294967296) * 3074457342754947072)) <= (((long long) r * 715827882) + (b / 2)))) && ((r % 4294967296) <= 2)) && (((17179869184 * (r / 4294967296)) + ((long long) b * 3)) <= ((((4294967292 + ((b / 4294967296) * 21474836480)) + (8589934592 * ((((((((((((4294967292 + ((long long) b * -3)) + (2 * (b / 2))) + ((b / 4294967296) * 21474836480)) + (-17179869184 * (r / 4294967296))) + ((long long) B * -4)) + (17179869184 * (B / 4294967296))) + ((long long) r * 4)) / 12884901888) * -6442450944) + ((long long) -2 * B)) + (b / 2)) / 4294967296))) + (17179869184 * (B / 4294967296))) + ((long long) r * 4))))) [2024-09-13 05:33:40,644 INFO L1541 ArrayList]: Loop invariant at [L37-L40] (((((((((B % 4294967296) <= (r % 4294967296)) && ((((((long long) B * 2) + r) + (8589934592 * (b / 4294967296))) + (4294967296 * ((((((((A / 4294967296) * -(((__int128) 0 << 64) | 12297829383904690176U)) + ((unsigned long long) (((long long) b + 1) / 2) * 4294967296)) + 3074457341323291305) + ((unsigned long long) 2863311531 * r)) + ((__int128) -5010795179 * b)) + ((__int128) B * 5726623062)) / 3074457347049914368))) <= (((((8589934592 * (((((((long long) B * -6) + 6) + ((long long) r * -3)) + ((A / 4294967296) * 12884901888)) + ((long long) b * 3)) / 8589934592)) + b) + 2) + ((A / 4294967296) * 4294967296)) + (17179869184 * (B / 4294967296))))) && (1 <= (B % 4294967296))) && ((((long long) B * 2) + ((A / 4294967296) * 3074457342754947072)) <= (((long long) r * 715827882) + b))) && (q == 0)) && (((long long) B * 2) == b)) || (((((((((long long) B * 2) + r) <= ((2 + ((A / 4294967296) * 4294967296)) + ((long long) b * 2))) && (B == b)) && (1 <= (B % 4294967296))) && (b <= (2 + ((B / 4294967296) * 4294967296)))) && ((((A / 4294967296) * 1537228671377473536) + B) <= (b + ((long long) r * 357913941)))) && (q == 0))) || (((((((((B % 2147483648) * 2) <= (r % 4294967296)) && (((B + ((r / 4294967296) * 4294967296)) + ((((((((long long) 1073741824 * r) + (((((int) -1 * (b / 2)) + 1) / 2) * 2147483648)) + 1537228670661645652) + ((unsigned long long) 2863311531 * B)) + ((A / 4294967296) * -6148914691952345088)) / 1537228673524957184) * 2147483648)) <= ((((((A / 4294967296) * 2147483648) + ((b / 4294967296) * 4294967296)) + ((((((-6442450944 * (r / 4294967296)) + 3) + ((A / 4294967296) * 6442450944)) + ((long long) B * -3)) / 4294967296) * 4294967296)) + ((B / 4294967296) * 4294967296)) + 1))) && (b <= ((long long) B * 4))) && (((b / 4294967296) * 4294967296) <= (((((long long) B * 2) + (b / 2)) + (((-1 + ((long long) -1 * r)) / 2) * 2)) + ((r / 4294967296) * 4294967296)))) && (q == 0)) && ((((long long) B * 2) + ((A / 4294967296) * 3074457342754947072)) <= (((long long) r * 715827882) + (b / 2)))) && (((17179869184 * (r / 4294967296)) + ((long long) b * 3)) <= ((((4294967292 + ((b / 4294967296) * 21474836480)) + (8589934592 * ((((((((((((4294967292 + ((long long) b * -3)) + (2 * (b / 2))) + ((b / 4294967296) * 21474836480)) + (-17179869184 * (r / 4294967296))) + ((long long) B * -4)) + (17179869184 * (B / 4294967296))) + ((long long) r * 4)) / 12884901888) * -6442450944) + ((long long) -2 * B)) + (b / 2)) / 4294967296))) + (17179869184 * (B / 4294967296))) + ((long long) r * 4))))) [2024-09-13 05:33:40,644 INFO L1541 ArrayList]: Function contract at [L15]: requires null, ensures (\old(cond) != 0) [2024-09-13 05:33:40,644 INFO L1541 ArrayList]: Function contract at [L18]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-13 05:33:40,662 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 05:33:40,767 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i[950,963] [2024-09-13 05:33:40,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:33:40,794 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-13 05:33:40,826 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin_valuebound2.i[950,963] Start Parsing Local Start Parsing Local [2024-09-13 05:33:40,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:33:40,913 INFO L204 MainTranslator]: Completed translation [2024-09-13 05:33:40,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:33:40 WrapperNode [2024-09-13 05:33:40,914 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 05:33:40,915 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-13 05:33:40,915 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-13 05:33:40,916 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-13 05:33:40,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:33:40" (1/1) ... [2024-09-13 05:33:40,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:33:40" (1/1) ... [2024-09-13 05:33:41,045 INFO L138 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48 [2024-09-13 05:33:41,045 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-13 05:33:41,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 05:33:41,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 05:33:41,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 05:33:41,055 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:33:40" (1/1) ... [2024-09-13 05:33:41,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:33:40" (1/1) ... [2024-09-13 05:33:41,070 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:33:40" (1/1) ... [2024-09-13 05:33:41,077 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure assume_abort_if_not is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-13 05:33:41,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:33:40" (1/1) ... [2024-09-13 05:33:41,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:33:40" (1/1) ... [2024-09-13 05:33:41,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:33:40" (1/1) ... [2024-09-13 05:33:41,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:33:40" (1/1) ... [2024-09-13 05:33:41,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:33:40" (1/1) ... [2024-09-13 05:33:41,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:33:40" (1/1) ... [2024-09-13 05:33:41,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 05:33:41,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 05:33:41,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 05:33:41,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 05:33:41,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:33:40" (1/1) ... [2024-09-13 05:33:41,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:33:41,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 05:33:41,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-13 05:33:41,155 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-13 05:33:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 05:33:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 05:33:41,192 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 05:33:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-13 05:33:41,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 05:33:41,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 05:33:41,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 05:33:41,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-13 05:33:41,244 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 05:33:41,246 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 05:33:43,209 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-13 05:33:43,228 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-09-13 05:33:43,228 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 05:33:43,245 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 05:33:43,246 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-13 05:33:43,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:33:43 BoogieIcfgContainer [2024-09-13 05:33:43,247 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 05:33:43,249 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-13 05:33:43,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-13 05:33:43,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-13 05:33:43,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:33:38" (1/4) ... [2024-09-13 05:33:43,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e4c7022 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 05:33:43, skipping insertion in model container [2024-09-13 05:33:43,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 05:33:40" (2/4) ... [2024-09-13 05:33:43,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e4c7022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 05:33:43, skipping insertion in model container [2024-09-13 05:33:43,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:33:40" (3/4) ... [2024-09-13 05:33:43,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e4c7022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 05:33:43, skipping insertion in model container [2024-09-13 05:33:43,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:33:43" (4/4) ... [2024-09-13 05:33:43,255 INFO L112 eAbstractionObserver]: Analyzing ICFG divbin_valuebound2.i [2024-09-13 05:33:43,268 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-13 05:33:43,268 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-09-13 05:33:43,301 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-13 05:33:43,307 INFO L336 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=None, 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;@3b410b0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-13 05:33:43,307 INFO L337 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-09-13 05:33:43,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 20 states have (on average 1.7) internal successors, (34), 25 states have internal predecessors, (34), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-13 05:33:43,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-09-13 05:33:43,315 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:33:43,316 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-09-13 05:33:43,316 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 4 more)] === [2024-09-13 05:33:43,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:33:43,323 INFO L85 PathProgramCache]: Analyzing trace with hash 118866251, now seen corresponding path program 1 times [2024-09-13 05:33:43,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:33:43,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979405409] [2024-09-13 05:33:43,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:33:43,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:33:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:33:43,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:33:43,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:33:43,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979405409] [2024-09-13 05:33:43,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979405409] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:33:43,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:33:43,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-13 05:33:43,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730272249] [2024-09-13 05:33:43,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:33:43,519 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-13 05:33:43,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:33:43,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-13 05:33:43,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-13 05:33:43,556 INFO L87 Difference]: Start difference. First operand has 34 states, 20 states have (on average 1.7) internal successors, (34), 25 states have internal predecessors, (34), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:33:43,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:33:43,597 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2024-09-13 05:33:43,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 05:33:43,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-09-13 05:33:43,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:33:43,603 INFO L225 Difference]: With dead ends: 33 [2024-09-13 05:33:43,603 INFO L226 Difference]: Without dead ends: 31 [2024-09-13 05:33:43,605 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-13 05:33:43,607 INFO L434 NwaCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:33:43,607 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 80 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:33:43,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-09-13 05:33:43,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-09-13 05:33:43,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.368421052631579) internal successors, (26), 23 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-13 05:33:43,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2024-09-13 05:33:43,637 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 5 [2024-09-13 05:33:43,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:33:43,637 INFO L474 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2024-09-13 05:33:43,637 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:33:43,637 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-09-13 05:33:43,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-09-13 05:33:43,638 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:33:43,638 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:33:43,638 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-13 05:33:43,639 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 4 more)] === [2024-09-13 05:33:43,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:33:43,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1837307530, now seen corresponding path program 1 times [2024-09-13 05:33:43,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:33:43,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564760156] [2024-09-13 05:33:43,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:33:43,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Killed by 15