./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound2.i --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/divbin_unwindbound2.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f1d7dc9d 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-scaling/divbin_unwindbound2.i ../results/automizer-verification-files/SV-COMP24_unreach-call/divbin_unwindbound2.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-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:27:10,336 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:27:10,394 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:27:10,401 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:27:10,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:27:10,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:27:10,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:27:10,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:27:10,425 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:27:10,425 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:27:10,426 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:27:10,426 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:27:10,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:27:10,427 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:27:10,427 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:27:10,427 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:27:10,428 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:27:10,428 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:27:10,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:27:10,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:27:10,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:27:10,429 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:27:10,430 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:27:10,430 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:27:10,430 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:27:10,431 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:27:10,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:27:10,431 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:27:10,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:27:10,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:27:10,432 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:27:10,433 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:27:10,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:27:10,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:27:10,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:27:10,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:27:10,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:27:10,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:27:10,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:27:10,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:27:10,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:27:10,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:27:10,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:27:10,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:27:10,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:27:10,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:27:10,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:27:10,744 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:27:10,745 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:27:10,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound2.i [2024-09-20 13:27:12,205 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:27:12,419 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:27:12,419 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound2.i [2024-09-20 13:27:12,426 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/83ff7881f/d466eb4c24b545a193be5740c32b4e87/FLAGbe21c3ee7 [2024-09-20 13:27:12,438 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/83ff7881f/d466eb4c24b545a193be5740c32b4e87 [2024-09-20 13:27:12,442 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:27:12,443 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:27:12,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/divbin_unwindbound2.yml/witness-2.1.yml [2024-09-20 13:27:12,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:27:12,497 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:27:12,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:27:12,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:27:12,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:27:12,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:27:12" (1/2) ... [2024-09-20 13:27:12,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c833885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:27:12, skipping insertion in model container [2024-09-20 13:27:12,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:27:12" (1/2) ... [2024-09-20 13:27:12,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@29ff0c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:27:12, skipping insertion in model container [2024-09-20 13:27:12,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:27:12" (2/2) ... [2024-09-20 13:27:12,511 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c833885 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:27:12, skipping insertion in model container [2024-09-20 13:27:12,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:27:12" (2/2) ... [2024-09-20 13:27:12,524 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:27:12,527 INFO L1541 ArrayList]: Loop invariant at [L36-L39] ((\old(counter) == 0) && (((((2 <= counter) && (A == r)) && (q == 0)) || ((((A == r) && (counter == 0)) && (B == b)) && (q == 0))) || (((A == r) && (q == 0)) && (counter == 1)))) [2024-09-20 13:27:12,528 INFO L1541 ArrayList]: Loop invariant at [L40-L49] (((((2 <= counter) && (A == r)) && (q == 0)) || (((A == r) && (B == b)) && (q == 0))) && (\old(counter) == 0)) [2024-09-20 13:27:12,528 INFO L1541 ArrayList]: Function contract at [L15]: requires (counter == 0), ensures (counter == 0) [2024-09-20 13:27:12,529 INFO L1541 ArrayList]: Function contract at [L18]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 13:27:12,529 INFO L1541 ArrayList]: Function contract at [L26]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-20 13:27:12,549 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:27:12,708 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/divbin_unwindbound2.i[950,963] [2024-09-20 13:27:12,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:27:12,743 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-20 13:27:12,773 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/divbin_unwindbound2.i[950,963] Start Parsing Global Start Parsing Global Start Parsing Local Start Parsing Local [2024-09-20 13:27:12,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:27:12,804 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:27:12,805 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:27:12 WrapperNode [2024-09-20 13:27:12,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:27:12,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:27:12,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:27:12,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:27:12,821 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 20.09 01:27:12" (1/1) ... [2024-09-20 13:27:12,822 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 20.09 01:27:12" (1/1) ... [2024-09-20 13:27:12,832 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 20.09 01:27:12" (1/1) ... [2024-09-20 13:27:12,850 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 [2024-09-20 13:27:12,854 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 20.09 01:27:12" (1/1) ... [2024-09-20 13:27:12,855 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 20.09 01:27:12" (1/1) ... [2024-09-20 13:27:12,860 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 20.09 01:27:12" (1/1) ... [2024-09-20 13:27:12,863 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 20.09 01:27:12" (1/1) ... [2024-09-20 13:27:12,864 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 20.09 01:27:12" (1/1) ... [2024-09-20 13:27:12,866 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 20.09 01:27:12" (1/1) ... [2024-09-20 13:27:12,870 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:27:12,875 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:27:12,875 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:27:12,875 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:27:12,876 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 20.09 01:27:12" (1/1) ... [2024-09-20 13:27:12,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:27:12,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:27:12,914 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) [2024-09-20 13:27:12,920 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 [2024-09-20 13:27:12,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:27:12,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:27:12,969 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:27:12,969 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:27:12,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:27:12,970 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:27:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:27:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:27:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-20 13:27:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-20 13:27:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:27:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:27:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 13:27:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:27:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:27:12,970 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:27:12,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:27:12,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 13:27:12,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:27:12,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 13:27:12,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 13:27:12,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:27:13,037 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:27:13,039 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:27:13,063 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:27:13,091 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:27:13,277 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:27:13,290 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:27:13,314 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:27:13,315 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-20 13:27:13,315 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:27:13 BoogieIcfgContainer [2024-09-20 13:27:13,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:27:13,316 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:27:13,316 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:27:13,316 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:27:13,317 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:27:12" (1/4) ... [2024-09-20 13:27:13,317 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e7f835f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:27:13, skipping insertion in model container [2024-09-20 13:27:13,317 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:27:12" (2/4) ... [2024-09-20 13:27:13,317 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e7f835f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:27:13, skipping insertion in model container [2024-09-20 13:27:13,317 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 20.09 01:27:12" (3/4) ... [2024-09-20 13:27:13,318 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e7f835f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:27:13, skipping insertion in model container [2024-09-20 13:27:13,318 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:27:13" (4/4) ... [2024-09-20 13:27:13,319 INFO L79 RefereeObserver]: Analyzing ICFG divbin_unwindbound2.i [2024-09-20 13:27:13,322 INFO L113 InvariantChecker]: Found 2 loops. [2024-09-20 13:27:13,323 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. [2024-09-20 13:27:13,323 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L45-2 to ERROR_LOC mainErr5REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-20 13:27:13,324 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-20 13:27:13,324 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 13:27:13,325 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L45-2 to LOOP_INVARIANT_ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-20 13:27:13,325 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L36-4 to LOOP_INVARIANT_ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-20 13:27:13,326 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L45-2 to ERROR_LOC mainErr4REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:27:13,326 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L45-2 to ERROR_LOC mainErr6ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-20 13:27:13,326 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 13:27:13,326 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 13:27:13,327 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L36-4 to LOOP_INVARIANT_ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 13:27:13,327 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:27:13,327 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 13:27:13,327 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from procedure entry to loop head, 6 loop-free subgraphs from procedure entry to error location, 3 loop-free subgraphs from loop head to loop head [2024-09-20 13:27:13,385 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 13:27:13,386 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:13,386 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:13,387 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:13,388 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:13,389 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:13,396 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 13:27:13,398 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:13,398 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:13,398 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:13,398 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:13,401 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:13,413 INFO L520 InvariantChecker]: The annotation(s) from entry assume_abort_if_notENTRY to error location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:27:13,448 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-20 13:27:13,448 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:13,448 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:13,448 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:13,448 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:13,448 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:13,480 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-20 13:27:13,480 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:13,480 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:13,480 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:13,480 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:13,490 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:17,501 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:27:17,520 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 13:27:17,520 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:17,520 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:17,521 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:17,521 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:17,521 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:17,522 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 13:27:17,522 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:17,522 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:17,522 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:17,522 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:17,522 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:17,527 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:27:17,539 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:27:17,540 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:17,540 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:17,540 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:17,540 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:17,540 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:17,542 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:27:17,542 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:17,542 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:17,542 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:17,542 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:17,542 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:17,544 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:27:17,557 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-20 13:27:17,557 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:17,557 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:17,558 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:17,558 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:17,558 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:17,588 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-20 13:27:17,588 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:17,589 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:17,589 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:17,589 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:17,595 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:17,608 INFO L520 InvariantChecker]: The annotation(s) from loop head L45-2 to loop head mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:27:17,628 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-20 13:27:17,628 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:17,628 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:17,628 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:17,629 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:17,629 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:17,646 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-20 13:27:17,647 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:17,647 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:17,648 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:17,648 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:17,651 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:17,657 INFO L520 InvariantChecker]: The annotation(s) from loop head L36-4 to loop head mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:27:17,674 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 13:27:17,674 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:17,674 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:17,675 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:17,675 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:17,675 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:17,683 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 13:27:17,683 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:17,683 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:17,683 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:17,684 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:17,684 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:21,689 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:27:21,706 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-20 13:27:21,706 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:21,706 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:21,707 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:21,707 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:21,707 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:21,723 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-20 13:27:21,724 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:21,724 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:21,724 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:21,724 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:21,725 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:21,727 INFO L520 InvariantChecker]: The annotation(s) from loop head L45-2 to error location mainErr6ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:27:21,735 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:27:21,736 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:21,736 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:21,736 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:21,736 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:21,736 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:21,737 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:27:21,737 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:21,738 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:21,738 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:21,738 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:21,738 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:21,740 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:27:21,748 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 13:27:21,748 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:21,748 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:21,748 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:21,749 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:21,749 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:21,751 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 13:27:21,752 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:21,752 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:21,752 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:21,752 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:21,752 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:21,755 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:27:21,764 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 13:27:21,765 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:21,765 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:21,765 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:21,765 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:21,766 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:21,780 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 13:27:21,780 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:21,780 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:21,781 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:21,781 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:21,781 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:21,784 INFO L520 InvariantChecker]: The annotation(s) from loop head L36-4 to loop head mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:27:21,792 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:27:21,792 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:21,792 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:21,792 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:21,793 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:21,793 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:21,795 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:27:21,795 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:21,796 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:21,796 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:21,796 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:21,797 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:21,798 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:27:21,805 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:27:21,806 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:21,806 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:21,806 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:21,806 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:21,806 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:21,807 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:27:21,808 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:21,808 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:21,808 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:21,808 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:21,808 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:21,809 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:27:21,813 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-20 13:27:21,814 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e7f835f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:27:21, skipping insertion in model container [2024-09-20 13:27:21,815 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:27:21,816 INFO L158 Benchmark]: Toolchain (without parser) took 9317.96ms. Allocated memory is still 161.5MB. Free memory was 128.4MB in the beginning and 62.0MB in the end (delta: 66.4MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. [2024-09-20 13:27:21,816 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 111.1MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:27:21,817 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 161.5MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:27:21,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.17ms. Allocated memory is still 161.5MB. Free memory was 128.4MB in the beginning and 113.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:27:21,818 INFO L158 Benchmark]: Boogie Preprocessor took 68.16ms. Allocated memory is still 161.5MB. Free memory was 113.7MB in the beginning and 111.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:27:21,819 INFO L158 Benchmark]: RCFGBuilder took 440.33ms. Allocated memory is still 161.5MB. Free memory was 111.6MB in the beginning and 127.0MB in the end (delta: -15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:27:21,819 INFO L158 Benchmark]: Referee took 8498.94ms. Allocated memory is still 161.5MB. Free memory was 127.0MB in the beginning and 62.0MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-09-20 13:27:21,821 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Insufficient resources for checking whether annotation is a valid proof of correctness. Insufficient resources for checking whether annotation is a valid proof of correctness. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 40 to check that procedure precondition always holds at line 40. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 40 to check that procedure precondition always holds at line 41. Annotation is valid for all loop-free paths from entry of procedure ULTIMATE.start to check that procedure precondition always holds at line -1. Annotation is valid for all loop-free paths from entry of procedure assume_abort_if_not to exit of procedure assume_abort_if_not. Annotation is valid for all loop-free paths from loop head at line 40 to loop head at line 40. 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 main to check that procedure precondition always holds at line 31. Annotation is valid for all loop-free paths from loop head at line 36 to loop head at line 40. Annotation is valid for all loop-free paths from loop head at line 36 to loop head at line 36. 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 20. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 36. 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 entry of procedure main to check that procedure precondition always holds at line 31. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 111.1MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 161.5MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 305.17ms. Allocated memory is still 161.5MB. Free memory was 128.4MB in the beginning and 113.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.16ms. Allocated memory is still 161.5MB. Free memory was 113.7MB in the beginning and 111.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 440.33ms. Allocated memory is still 161.5MB. Free memory was 111.6MB in the beginning and 127.0MB in the end (delta: -15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 8498.94ms. Allocated memory is still 161.5MB. Free memory was 127.0MB in the beginning and 62.0MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:27:21,844 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-scaling/divbin_unwindbound2.i ../results/automizer-verification-files/SV-COMP24_unreach-call/divbin_unwindbound2.yml/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-f1d7dc9-m [2024-09-20 13:27:24,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:27:24,693 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 13:27:24,697 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:27:24,697 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:27:24,742 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:27:24,743 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:27:24,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:27:24,744 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:27:24,744 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:27:24,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:27:24,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:27:24,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:27:24,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:27:24,746 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:27:24,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:27:24,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:27:24,747 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:27:24,748 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:27:24,748 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:27:24,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:27:24,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:27:24,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:27:24,750 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 13:27:24,750 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 13:27:24,750 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:27:24,751 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 13:27:24,751 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:27:24,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:27:24,752 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:27:24,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:27:24,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:27:24,753 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:27:24,753 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:27:24,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:27:24,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:27:24,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:27:24,754 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:27:24,755 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:27:24,755 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 13:27:24,755 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 13:27:24,758 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:27:24,758 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:27:24,758 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:27:24,758 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:27:24,759 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 13:27:24,759 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:27:25,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:27:25,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:27:25,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:27:25,086 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:27:25,087 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:27:25,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound2.i [2024-09-20 13:27:26,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:27:26,783 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:27:26,784 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin_unwindbound2.i [2024-09-20 13:27:26,797 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/7e6bbb7d1/49f65e96e1334356af46af19859ebcc5/FLAG5040b068d [2024-09-20 13:27:27,170 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/7e6bbb7d1/49f65e96e1334356af46af19859ebcc5 [2024-09-20 13:27:27,172 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:27:27,173 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:27:27,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/divbin_unwindbound2.yml/witness-2.1.yml [2024-09-20 13:27:27,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:27:27,233 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:27:27,235 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:27:27,235 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:27:27,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:27:27,245 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:27:27" (1/2) ... [2024-09-20 13:27:27,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723bd741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:27:27, skipping insertion in model container [2024-09-20 13:27:27,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:27:27" (1/2) ... [2024-09-20 13:27:27,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@618a829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:27:27, skipping insertion in model container [2024-09-20 13:27:27,250 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:27:27" (2/2) ... [2024-09-20 13:27:27,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723bd741 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:27:27, skipping insertion in model container [2024-09-20 13:27:27,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:27:27" (2/2) ... [2024-09-20 13:27:27,264 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:27:27,265 INFO L1541 ArrayList]: Loop invariant at [L40-L49] (((((2 <= counter) && (A == r)) && (q == 0)) || (((A == r) && (B == b)) && (q == 0))) && (\old(counter) == 0)) [2024-09-20 13:27:27,265 INFO L1541 ArrayList]: Loop invariant at [L36-L39] ((\old(counter) == 0) && (((((2 <= counter) && (A == r)) && (q == 0)) || ((((A == r) && (counter == 0)) && (B == b)) && (q == 0))) || (((A == r) && (q == 0)) && (counter == 1)))) [2024-09-20 13:27:27,266 INFO L1541 ArrayList]: Function contract at [L18]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 13:27:27,266 INFO L1541 ArrayList]: Function contract at [L15]: requires (counter == 0), ensures (counter == 0) [2024-09-20 13:27:27,266 INFO L1541 ArrayList]: Function contract at [L26]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-20 13:27:27,288 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:27:27,451 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/divbin_unwindbound2.i[950,963] [2024-09-20 13:27:27,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:27:27,489 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-20 13:27:27,520 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/divbin_unwindbound2.i[950,963] Start Parsing Global Start Parsing Global Start Parsing Local Start Parsing Local [2024-09-20 13:27:27,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:27:27,547 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:27:27,548 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:27:27 WrapperNode [2024-09-20 13:27:27,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:27:27,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:27:27,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:27:27,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:27:27,562 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 20.09 01:27:27" (1/1) ... [2024-09-20 13:27:27,562 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 20.09 01:27:27" (1/1) ... [2024-09-20 13:27:27,574 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 20.09 01:27:27" (1/1) ... [2024-09-20 13:27:27,585 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 [2024-09-20 13:27:27,585 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 20.09 01:27:27" (1/1) ... [2024-09-20 13:27:27,586 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 20.09 01:27:27" (1/1) ... [2024-09-20 13:27:27,593 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 20.09 01:27:27" (1/1) ... [2024-09-20 13:27:27,597 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 20.09 01:27:27" (1/1) ... [2024-09-20 13:27:27,598 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 20.09 01:27:27" (1/1) ... [2024-09-20 13:27:27,599 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 20.09 01:27:27" (1/1) ... [2024-09-20 13:27:27,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:27:27,602 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:27:27,602 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:27:27,602 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:27:27,603 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 20.09 01:27:27" (1/1) ... [2024-09-20 13:27:27,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:27:27,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:27:27,630 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) [2024-09-20 13:27:27,633 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 [2024-09-20 13:27:27,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:27:27,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:27:27,685 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:27:27,685 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:27:27,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:27:27,686 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:27:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:27:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:27:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-20 13:27:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-20 13:27:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:27:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:27:27,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 13:27:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:27:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:27:27,687 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:27:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:27:27,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-20 13:27:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:27:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-20 13:27:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-20 13:27:27,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:27:27,776 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:27:27,778 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:27:27,802 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:27:27,838 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:27:28,041 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:27:28,053 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:27:28,088 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:27:28,088 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-20 13:27:28,090 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:27:28 BoogieIcfgContainer [2024-09-20 13:27:28,090 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:27:28,091 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:27:28,091 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:27:28,092 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:27:28,092 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:27:27" (1/4) ... [2024-09-20 13:27:28,092 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@57df6024 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:27:28, skipping insertion in model container [2024-09-20 13:27:28,093 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:27:27" (2/4) ... [2024-09-20 13:27:28,093 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@57df6024 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:27:28, skipping insertion in model container [2024-09-20 13:27:28,093 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 20.09 01:27:27" (3/4) ... [2024-09-20 13:27:28,093 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@57df6024 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:27:28, skipping insertion in model container [2024-09-20 13:27:28,093 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:27:28" (4/4) ... [2024-09-20 13:27:28,095 INFO L79 RefereeObserver]: Analyzing ICFG divbin_unwindbound2.i [2024-09-20 13:27:28,098 INFO L113 InvariantChecker]: Found 2 loops. [2024-09-20 13:27:28,099 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. [2024-09-20 13:27:28,099 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L45-2 to ERROR_LOC mainErr5REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-20 13:27:28,099 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-20 13:27:28,099 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 13:27:28,099 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L45-2 to LOOP_INVARIANT_ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-20 13:27:28,100 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L36-4 to LOOP_INVARIANT_ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-20 13:27:28,100 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L45-2 to ERROR_LOC mainErr4REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:27:28,100 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L45-2 to ERROR_LOC mainErr6ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-20 13:27:28,100 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 13:27:28,100 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 13:27:28,100 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L36-4 to LOOP_INVARIANT_ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 13:27:28,100 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:27:28,100 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 13:27:28,101 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head, 6 loop-free subgraphs from procedure entry to error location, 3 loop-free subgraphs from loop head to error location [2024-09-20 13:27:28,157 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 13:27:28,158 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:28,158 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:28,159 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:28,160 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:28,162 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,174 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 13:27:28,175 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,175 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:28,176 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:28,176 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:28,179 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:28,203 INFO L520 InvariantChecker]: The annotation(s) from entry assume_abort_if_notENTRY to error location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:27:28,238 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-20 13:27:28,238 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:28,238 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:28,238 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:28,238 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:28,238 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,262 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-20 13:27:28,262 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,262 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:28,263 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:28,263 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:28,268 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:28,289 INFO L520 InvariantChecker]: The annotation(s) from loop head L45-2 to error location mainErr5REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:27:28,304 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 13:27:28,305 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:28,305 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:28,305 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:28,305 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:28,305 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,306 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 13:27:28,306 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,306 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:28,307 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:28,307 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:28,307 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:28,314 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:27:28,335 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:27:28,339 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:28,339 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:28,339 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:28,339 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:28,340 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,341 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:27:28,341 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,341 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:28,341 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:28,342 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:28,342 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:28,345 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:27:28,364 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-20 13:27:28,365 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:28,365 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:28,365 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:28,365 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:28,365 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,396 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-20 13:27:28,396 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,396 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:28,397 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:28,397 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:28,402 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:28,413 INFO L520 InvariantChecker]: The annotation(s) from loop head L45-2 to loop head mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:27:28,432 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-20 13:27:28,433 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:28,433 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:28,433 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:28,434 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:28,434 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,449 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-20 13:27:28,449 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,449 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:28,450 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:28,450 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:28,453 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:28,490 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 13:27:28,490 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:28,491 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:28,491 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:28,492 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:28,492 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,499 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 13:27:28,499 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,499 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:28,500 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:28,500 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:28,501 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:28,520 INFO L520 InvariantChecker]: The annotation(s) from loop head L45-2 to error location mainErr4REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:27:28,535 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-20 13:27:28,536 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:28,536 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:28,536 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:28,536 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:28,536 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,557 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-20 13:27:28,558 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,558 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:28,559 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:28,559 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:28,560 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:28,561 INFO L520 InvariantChecker]: The annotation(s) from loop head L45-2 to error location mainErr6ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:27:28,573 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:27:28,573 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:28,574 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:28,574 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:28,574 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:28,574 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,575 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:27:28,575 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,575 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:28,576 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:28,576 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:28,576 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:28,578 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:27:28,592 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 13:27:28,592 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:28,592 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:28,593 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:28,593 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:28,593 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,597 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 13:27:28,598 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,598 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:28,598 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:28,598 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:28,599 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:28,605 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:27:28,613 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 13:27:28,614 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:28,614 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:28,614 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:28,614 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:28,614 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,624 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 13:27:28,624 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,628 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:28,628 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:28,629 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:28,629 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:28,633 INFO L520 InvariantChecker]: The annotation(s) from loop head L36-4 to loop head mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:27:28,643 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:27:28,644 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:28,644 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:28,644 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:28,644 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:28,645 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,647 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:27:28,648 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,648 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:28,648 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:28,648 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:28,648 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:28,650 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:27:28,659 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:27:28,659 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:28,659 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:28,659 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:28,660 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:28,660 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,661 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:27:28,661 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:28,661 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:28,661 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:28,661 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:28,662 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:28,664 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:27:28,676 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-20 13:27:28,676 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@57df6024 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:27:28, skipping insertion in model container [2024-09-20 13:27:28,676 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:27:28,678 INFO L158 Benchmark]: Toolchain (without parser) took 1443.91ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 42.0MB in the beginning and 46.3MB in the end (delta: -4.4MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2024-09-20 13:27:28,678 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 36.0MB in the beginning and 35.9MB in the end (delta: 38.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:27:28,679 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 81.8MB. Free memory is still 44.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:27:28,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.39ms. Allocated memory is still 81.8MB. Free memory was 41.8MB in the beginning and 55.2MB in the end (delta: -13.5MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-09-20 13:27:28,681 INFO L158 Benchmark]: Boogie Preprocessor took 52.45ms. Allocated memory is still 81.8MB. Free memory was 55.2MB in the beginning and 52.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:27:28,682 INFO L158 Benchmark]: RCFGBuilder took 488.20ms. Allocated memory is still 81.8MB. Free memory was 52.9MB in the beginning and 37.3MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:27:28,683 INFO L158 Benchmark]: Referee took 585.49ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 37.3MB in the beginning and 46.3MB in the end (delta: -9.0MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2024-09-20 13:27:28,685 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 loop head at line 36 to loop head at line 40. One counterexample starts in \old(counter)=0, A=0, B=0, b=1, counter=2147483647, q=0, r=0 and ends in \old(counter)=0, A=0, b=1, B=0, counter=-2147483648, q=0, r=0. Annotation is valid for all loop-free paths from entry of procedure ULTIMATE.start to check that procedure precondition always holds at line -1. Annotation is valid for all loop-free paths from loop head at line 40 to check that procedure precondition always holds at line 40. Annotation is valid for all loop-free paths from loop head at line 40 to loop head at line 40. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 36. Annotation is valid for all loop-free paths from entry of procedure assume_abort_if_not to exit of procedure assume_abort_if_not. Annotation is valid for all loop-free paths from loop head at line 40 to check that procedure precondition always holds at line 41. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 31. Annotation is valid for all loop-free paths from loop head at line 36 to loop head at line 36. 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 __VERIFIER_assert to check that a call to reach_error is unreachable at line 20. 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 entry of procedure main to check that procedure precondition always holds at line 31. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 36.0MB in the beginning and 35.9MB in the end (delta: 38.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.11ms. Allocated memory is still 81.8MB. Free memory is still 44.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.39ms. Allocated memory is still 81.8MB. Free memory was 41.8MB in the beginning and 55.2MB in the end (delta: -13.5MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.45ms. Allocated memory is still 81.8MB. Free memory was 55.2MB in the beginning and 52.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 488.20ms. Allocated memory is still 81.8MB. Free memory was 52.9MB in the beginning and 37.3MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 585.49ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 37.3MB in the beginning and 46.3MB in the end (delta: -9.0MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-20 13:27:28,722 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE