./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/ps6-ll.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/ps6-ll.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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/ps6-ll.c ../results/automizer-verification-files/SV-COMP24_unreach-call/ps6-ll.yml/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-dev-a9b967e-m [2024-09-11 20:48:05,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:48:05,762 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:48:05,767 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:48:05,768 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:48:05,798 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:48:05,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:48:05,799 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:48:05,800 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:48:05,802 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:48:05,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:48:05,803 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:48:05,805 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:48:05,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:48:05,805 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:48:05,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:48:05,806 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:48:05,806 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:48:05,806 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:48:05,806 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:48:05,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:48:05,808 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:48:05,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:48:05,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:48:05,809 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:48:05,809 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:48:05,809 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:48:05,809 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:48:05,810 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:48:05,811 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:48:05,811 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:48:05,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:48:05,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:48:05,812 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:48:05,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:48:05,813 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:48:05,813 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:48:05,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:48:05,813 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:48:05,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:48:05,814 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:48:05,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:48:05,814 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:48:06,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:48:06,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:48:06,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:48:06,100 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:48:06,101 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:48:06,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench/ps6-ll.c [2024-09-11 20:48:07,551 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:48:07,715 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:48:07,716 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench/ps6-ll.c [2024-09-11 20:48:07,723 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/88dfcb8c7/00faffe34e92488cb0fb7ba230d36e33/FLAG5f470548c [2024-09-11 20:48:08,112 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/88dfcb8c7/00faffe34e92488cb0fb7ba230d36e33 [2024-09-11 20:48:08,115 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:48:08,116 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:48:08,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/ps6-ll.yml/witness-2.1.yml [2024-09-11 20:48:08,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:48:08,168 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:48:08,169 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:48:08,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:48:08,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:48:08,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:48:08" (1/2) ... [2024-09-11 20:48:08,177 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b6949a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:08, skipping insertion in model container [2024-09-11 20:48:08,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:48:08" (1/2) ... [2024-09-11 20:48:08,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@394d3fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:48:08, skipping insertion in model container [2024-09-11 20:48:08,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:48:08" (2/2) ... [2024-09-11 20:48:08,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b6949a0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:48:08, skipping insertion in model container [2024-09-11 20:48:08,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:48:08" (2/2) ... [2024-09-11 20:48:08,190 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:48:08,190 INFO L1541 ArrayList]: Loop invariant at [L27-L36] ((((((y + ((__int128) y * y)) == (c + ((__int128) c * y))) && ((((__int128) c * y) + ((__int128) 3 * c)) == (((__int128) 3 * y) + ((__int128) y * y)))) && ((((6 * (((((__int128) y * y) * y) * y) * y)) + (2 * ((((((__int128) y * y) * y) * y) * y) * y))) + (5 * ((((__int128) y * y) * y) * y))) == (((__int128) x * 12) + ((__int128) y * y)))) && ((((__int128) k * y) == ((__int128) y * y)) || (c < k))) && (k <= 256)) [2024-09-11 20:48:08,190 INFO L1541 ArrayList]: Function contract at [L9]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-11 20:48:08,211 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:48:08,371 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench/ps6-ll.c[458,471] [2024-09-11 20:48:08,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:48:08,412 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-11 20:48:08,452 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench/ps6-ll.c[458,471] Start Parsing Local [2024-09-11 20:48:08,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:48:08,492 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:48:08,493 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:48:08 WrapperNode [2024-09-11 20:48:08,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:48:08,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:48:08,494 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:48:08,495 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:48:08,507 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 11.09 08:48:08" (1/1) ... [2024-09-11 20:48:08,508 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 11.09 08:48:08" (1/1) ... [2024-09-11 20:48:08,514 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 11.09 08:48:08" (1/1) ... [2024-09-11 20:48:08,523 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-11 20:48:08,523 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 11.09 08:48:08" (1/1) ... [2024-09-11 20:48:08,523 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 11.09 08:48:08" (1/1) ... [2024-09-11 20:48:08,531 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 11.09 08:48:08" (1/1) ... [2024-09-11 20:48:08,539 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 11.09 08:48:08" (1/1) ... [2024-09-11 20:48:08,540 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 11.09 08:48:08" (1/1) ... [2024-09-11 20:48:08,541 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 11.09 08:48:08" (1/1) ... [2024-09-11 20:48:08,543 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:48:08,544 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:48:08,544 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:48:08,544 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:48:08,545 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 11.09 08:48:08" (1/1) ... [2024-09-11 20:48:08,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:48:08,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:48:08,573 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) [2024-09-11 20:48:08,575 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 [2024-09-11 20:48:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:48:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:48:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:48:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:48:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-11 20:48:08,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:48:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:48:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:48:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:48:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:48:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2024-09-11 20:48:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:48:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:48:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:48:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:48:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-11 20:48:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:48:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-11 20:48:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-11 20:48:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:48:08,674 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:48:08,676 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:48:08,810 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-11 20:48:08,863 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-09-11 20:48:08,863 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:48:08,894 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:48:08,894 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-11 20:48:08,898 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:48:08 BoogieIcfgContainer [2024-09-11 20:48:08,898 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:48:08,899 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:48:08,899 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:48:08,900 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:48:08,900 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:48:08" (1/4) ... [2024-09-11 20:48:08,901 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@745e9940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:48:08, skipping insertion in model container [2024-09-11 20:48:08,901 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:48:08" (2/4) ... [2024-09-11 20:48:08,901 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@745e9940 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:48:08, skipping insertion in model container [2024-09-11 20:48:08,901 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 11.09 08:48:08" (3/4) ... [2024-09-11 20:48:08,901 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@745e9940 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:48:08, skipping insertion in model container [2024-09-11 20:48:08,901 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:48:08" (4/4) ... [2024-09-11 20:48:08,903 INFO L79 RefereeObserver]: Analyzing ICFG ps6-ll.c [2024-09-11 20:48:08,907 INFO L112 InvariantChecker]: Found 1 loops. [2024-09-11 20:48:08,908 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L27-3 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 7 edges. [2024-09-11 20:48:08,908 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L27-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-11 20:48:08,909 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 4 edges. [2024-09-11 20:48:08,909 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L27-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-11 20:48:08,909 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-11 20:48:08,909 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-11 20:48:08,909 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L27-3 to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-11 20:48:08,910 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location, 3 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head [2024-09-11 20:48:08,983 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-11 20:48:08,985 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:08,985 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:08,986 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:09,025 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:09,027 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:09,110 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-11 20:48:09,111 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:09,112 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:09,112 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:09,112 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:09,128 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:09,153 INFO L514 InvariantChecker]: The annotation(s) from loop head L27-3 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:48:09,176 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:48:09,178 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:09,179 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:09,179 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:09,179 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:09,179 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:09,189 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:48:09,189 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:09,190 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:09,190 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:09,190 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:09,190 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:09,196 INFO L514 InvariantChecker]: The annotation(s) from loop head L27-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:48:09,215 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:48:09,215 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:09,216 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:09,216 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:09,216 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:09,217 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:09,226 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:48:09,227 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:09,227 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:09,227 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:09,227 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:09,227 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:09,257 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-11 20:48:09,258 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:09,259 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:09,259 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:09,260 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:09,260 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:09,287 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-11 20:48:09,288 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:09,288 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:09,288 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:09,288 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:09,288 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:09,293 INFO L514 InvariantChecker]: The annotation(s) from loop head L27-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:48:09,303 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:48:09,304 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:09,304 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:09,304 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:09,304 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:09,305 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:09,307 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:48:09,307 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:09,307 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:09,307 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:09,308 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:09,308 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:09,310 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:48:09,319 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:48:09,319 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:09,319 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:09,319 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:09,319 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:09,320 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:09,321 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:48:09,321 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:09,321 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:09,321 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:09,321 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:09,321 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:09,323 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:48:09,334 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-11 20:48:09,334 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:48:09,334 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:48:09,334 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:48:09,335 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:48:09,335 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:09,352 INFO L101 BaseMinimizeStates]: Removed 16 edges and 5 locations by large block encoding [2024-09-11 20:48:09,352 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:48:09,352 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:48:09,352 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:48:09,353 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:48:09,355 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:48:09,357 INFO L514 InvariantChecker]: The annotation(s) from loop head L27-3 to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:48:09,364 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-11 20:48:09,364 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@745e9940 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:48:09, skipping insertion in model container [2024-09-11 20:48:09,364 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:48:09,366 INFO L158 Benchmark]: Toolchain (without parser) took 1196.57ms. Allocated memory is still 184.5MB. Free memory was 112.6MB in the beginning and 117.5MB in the end (delta: -4.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-09-11 20:48:09,366 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:48:09,367 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 184.5MB. Free memory is still 114.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:48:09,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.27ms. Allocated memory is still 184.5MB. Free memory was 112.3MB in the beginning and 98.5MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:48:09,368 INFO L158 Benchmark]: Boogie Preprocessor took 49.05ms. Allocated memory is still 184.5MB. Free memory was 98.5MB in the beginning and 96.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:48:09,368 INFO L158 Benchmark]: RCFGBuilder took 354.60ms. Allocated memory is still 184.5MB. Free memory was 96.5MB in the beginning and 80.1MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-11 20:48:09,369 INFO L158 Benchmark]: Referee took 465.17ms. Allocated memory is still 184.5MB. Free memory was 80.1MB in the beginning and 117.5MB in the end (delta: -37.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-11 20:48:09,372 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 main to loop head at line 27. One counterexample starts in and ends in c=0, k=0, x=0, y=0. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from loop head at line 27 to loop head at line 27. Annotation is valid for all loop-free paths from loop head at line 27 to check that procedure precondition always holds at line 28. Annotation is valid for all loop-free paths from loop head at line 27 to check that procedure precondition always holds at line 27. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 11. Annotation is valid for all loop-free paths from loop head at line 27 to check that procedure precondition always holds at line 38. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 184.5MB. Free memory is still 114.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.27ms. Allocated memory is still 184.5MB. Free memory was 112.3MB in the beginning and 98.5MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.05ms. Allocated memory is still 184.5MB. Free memory was 98.5MB in the beginning and 96.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 354.60ms. Allocated memory is still 184.5MB. Free memory was 96.5MB in the beginning and 80.1MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Referee took 465.17ms. Allocated memory is still 184.5MB. Free memory was 80.1MB in the beginning and 117.5MB in the end (delta: -37.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:48:09,402 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