./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound10.i --full-output --witness-type correctness_witness --validate ../results/cpachecker-verification-files/SV-COMP24_unreach-call/knuth_unwindbound10.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-scaling/knuth_unwindbound10.i ../results/cpachecker-verification-files/SV-COMP24_unreach-call/knuth_unwindbound10.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 19:10:18,256 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:10:18,338 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 19:10:18,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:10:18,345 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:10:18,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:10:18,377 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:10:18,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:10:18,378 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:10:18,379 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:10:18,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:10:18,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:10:18,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:10:18,382 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:10:18,383 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:10:18,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:10:18,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:10:18,384 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:10:18,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 19:10:18,384 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:10:18,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:10:18,388 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:10:18,388 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:10:18,388 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:10:18,389 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:10:18,389 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:10:18,389 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:10:18,389 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:10:18,390 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:10:18,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:10:18,390 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:10:18,390 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:10:18,390 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:10:18,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:10:18,391 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:10:18,391 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:10:18,391 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:10:18,391 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 19:10:18,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 19:10:18,392 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:10:18,392 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:10:18,393 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:10:18,393 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:10:18,393 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:10:18,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:10:18,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:10:18,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:10:18,676 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:10:18,676 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:10:18,677 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound10.i [2024-09-21 19:10:20,129 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:10:20,338 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:10:20,339 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound10.i [2024-09-21 19:10:20,347 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/1520d575c/4799073ec3dc455c903e56998dd7429a/FLAG88891562f [2024-09-21 19:10:20,361 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/1520d575c/4799073ec3dc455c903e56998dd7429a [2024-09-21 19:10:20,364 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:10:20,365 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:10:20,367 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/knuth_unwindbound10.yml/output/witness-2.1.yml [2024-09-21 19:10:20,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:10:20,411 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:10:20,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:10:20,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:10:20,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:10:20,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:10:20" (1/2) ... [2024-09-21 19:10:20,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36356ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:20, skipping insertion in model container [2024-09-21 19:10:20,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:10:20" (1/2) ... [2024-09-21 19:10:20,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@40cbd4d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:20, skipping insertion in model container [2024-09-21 19:10:20,424 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 07:10:20" (2/2) ... [2024-09-21 19:10:20,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36356ed2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:20, skipping insertion in model container [2024-09-21 19:10:20,425 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 07:10:20" (2/2) ... [2024-09-21 19:10:20,432 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:10:20,433 INFO L1541 ArrayList]: Function contract at [L27]: requires 1, ensures 1 [2024-09-21 19:10:20,433 INFO L1541 ArrayList]: Function contract at [L15]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:10:20,453 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:10:20,626 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-scaling/knuth_unwindbound10.i[948,961] [2024-09-21 19:10:20,638 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-21 19:10:20,644 INFO L158 Benchmark]: Toolchain (without parser) took 232.22ms. Allocated memory is still 176.2MB. Free memory was 143.5MB in the beginning and 133.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-21 19:10:20,645 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory was 84.0MB in the beginning and 83.8MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:10:20,645 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:10:20,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.26ms. Allocated memory is still 176.2MB. Free memory was 142.8MB in the beginning and 133.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-21 19:10:20,648 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 121.6MB. Free memory was 84.0MB in the beginning and 83.8MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.18ms. Allocated memory is still 176.2MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.26ms. Allocated memory is still 176.2MB. Free memory was 142.8MB in the beginning and 133.0MB in the end (delta: 9.8MB). 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-scaling/knuth_unwindbound10.i ../results/cpachecker-verification-files/SV-COMP24_unreach-call/knuth_unwindbound10.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 19:10:22,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:10:22,712 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-21 19:10:22,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:10:22,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:10:22,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:10:22,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:10:22,751 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:10:22,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:10:22,752 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:10:22,752 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:10:22,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:10:22,756 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:10:22,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:10:22,758 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:10:22,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:10:22,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:10:22,759 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:10:22,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:10:22,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:10:22,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:10:22,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:10:22,764 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:10:22,765 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-21 19:10:22,765 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-21 19:10:22,765 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:10:22,765 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-21 19:10:22,765 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:10:22,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:10:22,766 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:10:22,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:10:22,766 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:10:22,767 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:10:22,767 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:10:22,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:10:22,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:10:22,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:10:22,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:10:22,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:10:22,771 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-21 19:10:22,771 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-21 19:10:22,771 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:10:22,771 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:10:22,772 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:10:22,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:10:22,772 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-21 19:10:22,772 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:10:23,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:10:23,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:10:23,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:10:23,158 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:10:23,159 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:10:23,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/knuth_unwindbound10.yml/output/witness-2.1.yml [2024-09-21 19:10:23,211 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:10:23,212 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:10:23,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound10.i [2024-09-21 19:10:24,893 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:10:25,078 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:10:25,079 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound10.i [2024-09-21 19:10:25,085 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/b5e6f5457/c0e58a9c69f141aa82c03d25f4741143/FLAGb0ee8eeca [2024-09-21 19:10:25,100 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/b5e6f5457/c0e58a9c69f141aa82c03d25f4741143 [2024-09-21 19:10:25,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:10:25,102 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:10:25,103 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:10:25,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:10:25,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:10:25,110 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 07:10:23" (1/2) ... [2024-09-21 19:10:25,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@368cda5f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:25, skipping insertion in model container [2024-09-21 19:10:25,111 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 07:10:23" (1/2) ... [2024-09-21 19:10:25,116 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1d50cb80 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:25, skipping insertion in model container [2024-09-21 19:10:25,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:10:25" (2/2) ... [2024-09-21 19:10:25,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@368cda5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:25, skipping insertion in model container [2024-09-21 19:10:25,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:10:25" (2/2) ... [2024-09-21 19:10:25,126 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:10:25,127 INFO L1541 ArrayList]: Function contract at [L27]: requires 1, ensures 1 [2024-09-21 19:10:25,127 INFO L1541 ArrayList]: Function contract at [L15]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:10:25,147 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:10:25,323 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-scaling/knuth_unwindbound10.i[948,961] [2024-09-21 19:10:25,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:10:25,391 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-21 19:10:25,434 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-scaling/knuth_unwindbound10.i[948,961] Start Parsing Global Start Parsing Global [2024-09-21 19:10:25,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:10:25,480 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:10:25,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:25 WrapperNode [2024-09-21 19:10:25,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:10:25,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:10:25,482 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:10:25,482 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:10:25,494 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:25" (1/1) ... [2024-09-21 19:10:25,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:25" (1/1) ... [2024-09-21 19:10:25,505 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:25" (1/1) ... [2024-09-21 19:10:25,522 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 19:10:25,522 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:25" (1/1) ... [2024-09-21 19:10:25,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:25" (1/1) ... [2024-09-21 19:10:25,538 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:25" (1/1) ... [2024-09-21 19:10:25,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:25" (1/1) ... [2024-09-21 19:10:25,562 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:25" (1/1) ... [2024-09-21 19:10:25,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:25" (1/1) ... [2024-09-21 19:10:25,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:10:25,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:10:25,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:10:25,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:10:25,574 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:25" (1/1) ... [2024-09-21 19:10:25,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:10:25,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:10:25,607 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 19:10:25,611 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 19:10:25,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:10:25,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:10:25,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2024-09-21 19:10:25,659 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:10:25,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 19:10:25,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-21 19:10:25,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:10:25,659 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:10:25,659 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:10:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-21 19:10:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-21 19:10:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:10:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:10:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-21 19:10:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 19:10:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:10:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt [2024-09-21 19:10:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:10:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:10:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-21 19:10:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:10:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2024-09-21 19:10:25,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-21 19:10:25,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-21 19:10:25,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:10:25,747 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:10:25,750 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:10:25,842 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:10:25,850 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:10:30,784 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:10:30,817 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:10:30,817 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-21 19:10:30,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:10:30 BoogieIcfgContainer [2024-09-21 19:10:30,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:10:30,819 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:10:30,819 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:10:30,820 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:10:30,820 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 07:10:23" (1/4) ... [2024-09-21 19:10:30,820 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4d59d59b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:10:30, skipping insertion in model container [2024-09-21 19:10:30,821 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:10:25" (2/4) ... [2024-09-21 19:10:30,821 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4d59d59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:10:30, skipping insertion in model container [2024-09-21 19:10:30,821 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:25" (3/4) ... [2024-09-21 19:10:30,821 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4d59d59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:10:30, skipping insertion in model container [2024-09-21 19:10:30,822 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:10:30" (4/4) ... [2024-09-21 19:10:30,823 INFO L79 RefereeObserver]: Analyzing ICFG knuth_unwindbound10.i [2024-09-21 19:10:30,827 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-21 19:10:30,828 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 19:10:30,828 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:10:30,828 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-21 19:10:30,829 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L57-2 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 11 edges. [2024-09-21 19:10:30,829 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 19:10:30,830 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 19:10:30,830 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to error location, 5 loop-free subgraphs from procedure entry to error location [2024-09-21 19:10:30,899 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-21 19:10:30,900 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:30,900 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:30,901 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:30,903 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:30,906 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:30,919 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-21 19:10:30,920 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:30,920 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:30,921 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:30,921 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:30,926 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:30,943 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 19:10:30,973 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:10:30,976 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:30,976 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:30,976 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:30,976 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:30,976 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:30,977 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:10:30,977 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:30,977 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:30,978 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:30,978 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:30,978 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:30,981 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:10:31,013 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:10:31,014 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:31,014 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:31,014 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:31,014 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:31,015 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:31,016 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:10:31,016 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:31,016 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:31,016 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:31,016 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:31,016 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:31,018 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:10:31,036 INFO L314 BlockEncoder]: Initial Icfg 10 locations, 11 edges [2024-09-21 19:10:31,036 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:31,039 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:31,040 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:31,040 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:31,040 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:31,053 INFO L101 BaseMinimizeStates]: Removed 21 edges and 8 locations by large block encoding [2024-09-21 19:10:31,054 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:31,054 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:31,054 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:31,054 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:31,055 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:31,059 INFO L520 InvariantChecker]: The annotation(s) from loop head L57-2 to error location mainErr2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:10:31,076 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:10:31,076 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:31,076 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:31,077 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:31,077 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:31,077 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:31,078 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:10:31,078 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:31,078 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:31,078 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:31,078 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:31,078 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:31,080 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:10:31,094 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:10:31,094 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:31,095 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:31,095 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:31,095 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:31,095 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:31,097 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:10:31,097 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:31,097 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:31,097 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:31,097 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:31,097 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:31,142 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-21 19:10:31,143 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4d59d59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 21.09 07:10:31, skipping insertion in model container [2024-09-21 19:10:31,143 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-21 19:10:31,145 INFO L158 Benchmark]: Toolchain (without parser) took 6043.06ms. Allocated memory is still 79.7MB. Free memory was 44.7MB in the beginning and 39.4MB in the end (delta: 5.3MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2024-09-21 19:10:31,145 INFO L158 Benchmark]: Witness Parser took 0.45ms. Allocated memory is still 52.4MB. Free memory is still 35.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:10:31,146 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 33.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:10:31,146 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.05ms. Allocated memory is still 79.7MB. Free memory was 44.3MB in the beginning and 29.0MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 19:10:31,146 INFO L158 Benchmark]: Boogie Preprocessor took 90.43ms. Allocated memory is still 79.7MB. Free memory was 29.0MB in the beginning and 59.6MB in the end (delta: -30.6MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-09-21 19:10:31,147 INFO L158 Benchmark]: RCFGBuilder took 5245.62ms. Allocated memory is still 79.7MB. Free memory was 59.2MB in the beginning and 40.4MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-09-21 19:10:31,147 INFO L158 Benchmark]: Referee took 324.62ms. Allocated memory is still 79.7MB. Free memory was 40.4MB in the beginning and 39.4MB in the end (delta: 993.9kB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2024-09-21 19:10:31,150 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 loop head at line 40 to exit of procedure main. 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 entry of procedure main to check that procedure precondition always holds at line 32. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 32. 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: * Witness Parser took 0.45ms. Allocated memory is still 52.4MB. Free memory is still 35.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 33.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.05ms. Allocated memory is still 79.7MB. Free memory was 44.3MB in the beginning and 29.0MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.43ms. Allocated memory is still 79.7MB. Free memory was 29.0MB in the beginning and 59.6MB in the end (delta: -30.6MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * RCFGBuilder took 5245.62ms. Allocated memory is still 79.7MB. Free memory was 59.2MB in the beginning and 40.4MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Referee took 324.62ms. Allocated memory is still 79.7MB. Free memory was 40.4MB in the beginning and 39.4MB in the end (delta: 993.9kB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-21 19:10:31,355 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE