./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/knuth.i --full-output --witness-type correctness_witness --validate ../results/cpachecker-verification-files/SV-COMP24_unreach-call/knuth.yml/output/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27b49876 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/nla-digbench/knuth.i ../results/cpachecker-verification-files/SV-COMP24_unreach-call/knuth.yml/output/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 19:08:23,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:08:23,362 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 19:08:23,367 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:08:23,368 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:08:23,405 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:08:23,406 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:08:23,406 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:08:23,407 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:08:23,407 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:08:23,408 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:08:23,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:08:23,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:08:23,410 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:08:23,411 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:08:23,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:08:23,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:08:23,411 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:08:23,412 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 19:08:23,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:08:23,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:08:23,413 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:08:23,413 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:08:23,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:08:23,413 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:08:23,414 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:08:23,414 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:08:23,419 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:08:23,419 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:08:23,419 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:08:23,419 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:08:23,419 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:08:23,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:08:23,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:08:23,420 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:08:23,420 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:08:23,420 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:08:23,421 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 19:08:23,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 19:08:23,421 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:08:23,421 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:08:23,422 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:08:23,423 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:08:23,423 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/referee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:08:23,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:08:23,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:08:23,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:08:23,735 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:08:23,736 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:08:23,737 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench/knuth.i [2024-09-21 19:08:25,177 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:08:25,364 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:08:25,365 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench/knuth.i [2024-09-21 19:08:25,371 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/652660ac5/f2eeec45471a42739970a5364d2ff77d/FLAG9e8870ebe [2024-09-21 19:08:25,387 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/652660ac5/f2eeec45471a42739970a5364d2ff77d [2024-09-21 19:08:25,389 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:08:25,390 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:08:25,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/knuth.yml/output/witness-2.1.yml [2024-09-21 19:08:25,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:08:25,435 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:08:25,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:08:25,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:08:25,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:08:25,442 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:08:25" (1/2) ... [2024-09-21 19:08:25,443 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7062b016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:25, skipping insertion in model container [2024-09-21 19:08:25,443 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:08:25" (1/2) ... [2024-09-21 19:08:25,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f216f1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:25, skipping insertion in model container [2024-09-21 19:08:25,445 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:08:25" (2/2) ... [2024-09-21 19:08:25,446 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7062b016 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:25, skipping insertion in model container [2024-09-21 19:08:25,446 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:08:25" (2/2) ... [2024-09-21 19:08:25,453 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:08:25,456 INFO L1541 ArrayList]: Function contract at [L26]: requires 1, ensures 1 [2024-09-21 19:08:25,457 INFO L1541 ArrayList]: Function contract at [L15]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:08:25,475 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:08:25,630 WARN L248 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/knuth.i[948,961] [2024-09-21 19:08:25,641 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:2721) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:253) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1586) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:789) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1494) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1133) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:387) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1613) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3471) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2497) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:639) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-21 19:08:25,650 INFO L158 Benchmark]: Toolchain (without parser) took 213.84ms. Allocated memory is still 169.9MB. Free memory was 136.9MB in the beginning and 126.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-21 19:08:25,652 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:08:25,652 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 169.9MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:08:25,653 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.07ms. Allocated memory is still 169.9MB. Free memory was 136.9MB in the beginning and 126.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-21 19:08:25,654 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.19ms. Allocated memory is still 169.9MB. Free memory is still 138.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.07ms. Allocated memory is still 169.9MB. Free memory was 136.9MB in the beginning and 126.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:610) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/nla-digbench/knuth.i ../results/cpachecker-verification-files/SV-COMP24_unreach-call/knuth.yml/output/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 19:08:27,631 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:08:27,713 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-21 19:08:27,717 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:08:27,718 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:08:27,749 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:08:27,750 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:08:27,750 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:08:27,751 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:08:27,752 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:08:27,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:08:27,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:08:27,753 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:08:27,757 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:08:27,757 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:08:27,758 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:08:27,758 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:08:27,758 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:08:27,759 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:08:27,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:08:27,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:08:27,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:08:27,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:08:27,764 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-21 19:08:27,764 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-21 19:08:27,765 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:08:27,765 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-21 19:08:27,765 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:08:27,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:08:27,766 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:08:27,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:08:27,766 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:08:27,767 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:08:27,767 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:08:27,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:08:27,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:08:27,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:08:27,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:08:27,771 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:08:27,771 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-21 19:08:27,771 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-21 19:08:27,772 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:08:27,772 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:08:27,772 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:08:27,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:08:27,773 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-21 19:08:27,773 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/referee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:08:28,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:08:28,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:08:28,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:08:28,120 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:08:28,120 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:08:28,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench/knuth.i [2024-09-21 19:08:29,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:08:29,813 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:08:29,813 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench/knuth.i [2024-09-21 19:08:29,827 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/22b9c0cbe/042c803e40864612b2d2030ae143f022/FLAGc6a1d64da [2024-09-21 19:08:29,843 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/22b9c0cbe/042c803e40864612b2d2030ae143f022 [2024-09-21 19:08:29,846 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:08:29,848 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:08:29,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/knuth.yml/output/witness-2.1.yml [2024-09-21 19:08:29,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:08:29,905 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:08:29,907 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:08:29,908 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:08:29,920 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:08:29,921 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:08:29" (1/2) ... [2024-09-21 19:08:29,923 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78b980f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:29, skipping insertion in model container [2024-09-21 19:08:29,923 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:08:29" (1/2) ... [2024-09-21 19:08:29,925 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5367205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:08:29, skipping insertion in model container [2024-09-21 19:08:29,925 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:08:29" (2/2) ... [2024-09-21 19:08:29,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78b980f0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:29, skipping insertion in model container [2024-09-21 19:08:29,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:08:29" (2/2) ... [2024-09-21 19:08:29,935 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:08:29,937 INFO L1541 ArrayList]: Function contract at [L15]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:08:29,937 INFO L1541 ArrayList]: Function contract at [L26]: requires 1, ensures 1 [2024-09-21 19:08:29,959 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:08:30,133 WARN L248 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/knuth.i[948,961] [2024-09-21 19:08:30,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:08:30,199 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-21 19:08:30,241 WARN L248 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/knuth.i[948,961] Start Parsing Global Start Parsing Global [2024-09-21 19:08:30,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:08:30,283 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:08:30,284 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:30 WrapperNode [2024-09-21 19:08:30,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:08:30,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:08:30,286 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:08:30,286 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:08:30,298 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:30" (1/1) ... [2024-09-21 19:08:30,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:30" (1/1) ... [2024-09-21 19:08:30,309 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:30" (1/1) ... [2024-09-21 19:08:30,320 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 [2024-09-21 19:08:30,324 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:30" (1/1) ... [2024-09-21 19:08:30,324 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:30" (1/1) ... [2024-09-21 19:08:30,337 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:30" (1/1) ... [2024-09-21 19:08:30,344 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:30" (1/1) ... [2024-09-21 19:08:30,346 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:30" (1/1) ... [2024-09-21 19:08:30,348 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:30" (1/1) ... [2024-09-21 19:08:30,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:08:30,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:08:30,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:08:30,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:08:30,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:30" (1/1) ... [2024-09-21 19:08:30,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:08:30,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:08:30,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-21 19:08:30,389 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-21 19:08:30,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:08:30,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:08:30,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-09-21 19:08:30,438 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:08:30,439 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 19:08:30,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-21 19:08:30,439 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:08:30,439 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:08:30,440 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:08:30,440 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-21 19:08:30,440 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-21 19:08:30,441 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:08:30,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:08:30,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-21 19:08:30,441 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 19:08:30,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:08:30,441 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt [2024-09-21 19:08:30,442 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:08:30,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:08:30,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-21 19:08:30,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:08:30,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-09-21 19:08:30,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-21 19:08:30,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-21 19:08:30,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:08:30,546 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:08:30,548 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:08:30,636 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:08:30,650 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:08:35,506 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:08:35,528 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:08:35,528 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-21 19:08:35,529 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:08:35 BoogieIcfgContainer [2024-09-21 19:08:35,529 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:08:35,530 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:08:35,530 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:08:35,531 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:08:35,531 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:08:29" (1/4) ... [2024-09-21 19:08:35,531 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@43cb68ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:08:35, skipping insertion in model container [2024-09-21 19:08:35,531 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:08:29" (2/4) ... [2024-09-21 19:08:35,532 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@43cb68ce and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:08:35, skipping insertion in model container [2024-09-21 19:08:35,532 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:08:30" (3/4) ... [2024-09-21 19:08:35,532 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@43cb68ce and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:08:35, skipping insertion in model container [2024-09-21 19:08:35,532 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:08:35" (4/4) ... [2024-09-21 19:08:35,534 INFO L79 RefereeObserver]: Analyzing ICFG knuth.i [2024-09-21 19:08:35,537 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-21 19:08:35,538 INFO L373 InvariantChecker]: Will check inductivity from ENTRY assume_abort_if_notENTRY to ERROR_LOC assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 4 edges. [2024-09-21 19:08:35,538 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:08:35,538 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-21 19:08:35,538 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L56-2 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-21 19:08:35,539 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:08:35,539 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-21 19:08:35,539 INFO L131 InvariantChecker]: Will check 5 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to error location [2024-09-21 19:08:35,613 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-21 19:08:35,615 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:08:35,616 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:08:35,616 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:08:35,617 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:08:35,619 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:35,629 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-21 19:08:35,631 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:35,631 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:08:35,631 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:08:35,632 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:08:35,634 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:08:35,653 INFO L520 InvariantChecker]: The annotation(s) from entry assume_abort_if_notENTRY to error location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:08:35,695 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:08:35,698 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:08:35,698 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:08:35,698 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:08:35,699 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:08:35,699 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:35,699 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:08:35,700 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:35,700 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:08:35,700 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:08:35,701 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:08:35,701 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:08:35,703 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:08:35,728 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:08:35,729 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:08:35,729 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:08:35,729 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:08:35,729 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:08:35,730 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:35,731 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:08:35,731 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:35,731 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:08:35,731 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:08:35,731 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:08:35,731 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:08:35,733 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:08:35,750 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-21 19:08:35,750 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:08:35,751 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:08:35,751 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:08:35,751 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:08:35,751 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:35,755 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-21 19:08:35,755 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:35,756 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:08:35,756 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:08:35,756 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:08:35,756 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:08:35,758 INFO L520 InvariantChecker]: The annotation(s) from loop head L56-2 to error location mainErr2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:08:35,774 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:08:35,774 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:08:35,774 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:08:35,774 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:08:35,775 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:08:35,775 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:35,775 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:08:35,775 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:35,775 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:08:35,776 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:08:35,776 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:08:35,776 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:08:35,777 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:08:35,792 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:08:35,792 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:08:35,793 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:08:35,793 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:08:35,793 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:08:35,793 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:35,794 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:08:35,795 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:08:35,795 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:08:35,795 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:08:35,796 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:08:35,796 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:08:35,833 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-21 19:08:35,834 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@43cb68ce and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 21.09 07:08:35, skipping insertion in model container [2024-09-21 19:08:35,834 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-21 19:08:35,836 INFO L158 Benchmark]: Toolchain (without parser) took 5930.44ms. Allocated memory is still 77.6MB. Free memory was 40.1MB in the beginning and 32.8MB in the end (delta: 7.3MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-09-21 19:08:35,836 INFO L158 Benchmark]: CDTParser took 0.94ms. Allocated memory is still 52.4MB. Free memory is still 28.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:08:35,836 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 77.6MB. Free memory is still 42.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:08:35,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.36ms. Allocated memory is still 77.6MB. Free memory was 40.0MB in the beginning and 42.5MB in the end (delta: -2.5MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2024-09-21 19:08:35,837 INFO L158 Benchmark]: Boogie Preprocessor took 66.53ms. Allocated memory is still 77.6MB. Free memory was 42.5MB in the beginning and 39.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 19:08:35,838 INFO L158 Benchmark]: RCFGBuilder took 5176.59ms. Allocated memory is still 77.6MB. Free memory was 39.6MB in the beginning and 41.9MB in the end (delta: -2.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2024-09-21 19:08:35,838 INFO L158 Benchmark]: Referee took 304.46ms. Allocated memory is still 77.6MB. Free memory was 41.9MB in the beginning and 32.8MB in the end (delta: 9.1MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2024-09-21 19:08:35,841 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is not a valid proof of correctness. Annotation is not a valid proof of correctness. Annotation is not valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 20. One counterexample starts in \old(cond)=0 and ends in \old(cond)=0, cond=0. Annotation is valid for all loop-free paths from entry of procedure assume_abort_if_not to exit of procedure assume_abort_if_not. Annotation is valid for all loop-free paths from loop head at line 39 to exit of procedure main. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 31. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 31. Annotation is valid for all loop-free paths from entry of procedure ULTIMATE.start to check that procedure precondition always holds at line -1. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94ms. Allocated memory is still 52.4MB. Free memory is still 28.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 77.6MB. Free memory is still 42.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.36ms. Allocated memory is still 77.6MB. Free memory was 40.0MB in the beginning and 42.5MB in the end (delta: -2.5MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.53ms. Allocated memory is still 77.6MB. Free memory was 42.5MB in the beginning and 39.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 5176.59ms. Allocated memory is still 77.6MB. Free memory was 39.6MB in the beginning and 41.9MB in the end (delta: -2.3MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Referee took 304.46ms. Allocated memory is still 77.6MB. Free memory was 41.9MB in the beginning and 32.8MB in the end (delta: 9.1MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-21 19:08:36,021 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE