./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/bh2017-ex3.i --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/bh2017-ex3.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-lit/bh2017-ex3.i ../results/automizer-verification-files/SV-COMP24_unreach-call/bh2017-ex3.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-11 20:47:02,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:47:02,304 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:47:02,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:47:02,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:47:02,330 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:47:02,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:47:02,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:47:02,332 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:47:02,332 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:47:02,332 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:47:02,333 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:47:02,333 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:47:02,333 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:47:02,334 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:47:02,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:47:02,334 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:47:02,335 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:47:02,335 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:47:02,336 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:47:02,336 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:47:02,339 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:47:02,340 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:47:02,340 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:47:02,340 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:47:02,341 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:47:02,341 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:47:02,341 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:47:02,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:47:02,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:47:02,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:47:02,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:47:02,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:02,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:47:02,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:47:02,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:47:02,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:47:02,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:47:02,347 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:47:02,347 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:47:02,347 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:47:02,348 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:47:02,348 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:47:02,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:47:02,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:47:02,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:47:02,650 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:47:02,651 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:47:02,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/bh2017-ex3.i [2024-09-11 20:47:04,006 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:47:04,221 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:47:04,222 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/bh2017-ex3.i [2024-09-11 20:47:04,228 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/63d597218/dd5876a8ab2f4a4ca0b6aeb36023a187/FLAG2d73b983a [2024-09-11 20:47:04,241 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/63d597218/dd5876a8ab2f4a4ca0b6aeb36023a187 [2024-09-11 20:47:04,244 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:47:04,245 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:47:04,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/bh2017-ex3.yml/witness-2.1.yml [2024-09-11 20:47:04,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:47:04,298 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:47:04,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:04,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:47:04,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:47:04,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:04" (1/2) ... [2024-09-11 20:47:04,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a8e744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:04, skipping insertion in model container [2024-09-11 20:47:04,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:04" (1/2) ... [2024-09-11 20:47:04,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2fedff10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:04, skipping insertion in model container [2024-09-11 20:47:04,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:47:04" (2/2) ... [2024-09-11 20:47:04,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a8e744 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:04, skipping insertion in model container [2024-09-11 20:47:04,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:47:04" (2/2) ... [2024-09-11 20:47:04,321 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:47:04,322 INFO L1541 ArrayList]: Location invariant before [L18-L43] 0 [2024-09-11 20:47:04,322 INFO L1541 ArrayList]: Loop invariant at [L18-L43] ((m <= 60) && (n <= 60)) [2024-09-11 20:47:04,322 INFO L1541 ArrayList]: Function contract at [L13]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-11 20:47:04,339 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:47:04,497 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/bh2017-ex3.i[799,812] [2024-09-11 20:47:04,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:04,521 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-11 20:47:04,567 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/bh2017-ex3.i[799,812] Start Parsing Local Start Parsing Local [2024-09-11 20:47:04,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:04,598 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:47:04,599 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:04 WrapperNode [2024-09-11 20:47:04,599 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:04,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:47:04,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:47:04,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:47:04,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:04" (1/1) ... [2024-09-11 20:47:04,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:04" (1/1) ... [2024-09-11 20:47:04,620 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:04" (1/1) ... [2024-09-11 20:47:04,632 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-11 20:47:04,634 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:04" (1/1) ... [2024-09-11 20:47:04,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:04" (1/1) ... [2024-09-11 20:47:04,639 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:04" (1/1) ... [2024-09-11 20:47:04,643 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:04" (1/1) ... [2024-09-11 20:47:04,645 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:04" (1/1) ... [2024-09-11 20:47:04,647 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:04" (1/1) ... [2024-09-11 20:47:04,648 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:47:04,652 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:47:04,653 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:47:04,653 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:47:04,654 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:04" (1/1) ... [2024-09-11 20:47:04,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:04,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:47:04,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-11 20:47:04,690 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-11 20:47:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:47:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:47:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:47:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-11 20:47:04,736 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:47:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:47:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-11 20:47:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-11 20:47:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:47:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:47:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:47:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:47:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2024-09-11 20:47:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:47:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:47:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-11 20:47:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:47:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-11 20:47:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-11 20:47:04,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:47:04,812 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:47:04,814 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:47:04,954 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-11 20:47:04,993 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-09-11 20:47:04,994 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:47:05,013 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:47:05,014 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-11 20:47:05,014 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:05 BoogieIcfgContainer [2024-09-11 20:47:05,014 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:47:05,015 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:47:05,015 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:47:05,016 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:47:05,016 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:47:04" (1/4) ... [2024-09-11 20:47:05,017 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2d1aa646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:47:05, skipping insertion in model container [2024-09-11 20:47:05,017 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:47:04" (2/4) ... [2024-09-11 20:47:05,017 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2d1aa646 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:47:05, skipping insertion in model container [2024-09-11 20:47:05,018 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:04" (3/4) ... [2024-09-11 20:47:05,018 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2d1aa646 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:47:05, skipping insertion in model container [2024-09-11 20:47:05,018 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:05" (4/4) ... [2024-09-11 20:47:05,020 INFO L79 RefereeObserver]: Analyzing ICFG bh2017-ex3.i [2024-09-11 20:47:05,023 INFO L112 InvariantChecker]: Found 1 loops. [2024-09-11 20:47:05,024 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L33-1 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-11 20:47:05,024 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L33-1 to ERROR_LOC mainErr5REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 9 edges. [2024-09-11 20:47:05,025 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-11 20:47:05,025 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L33-1 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 20 edges. [2024-09-11 20:47:05,025 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-11 20:47:05,025 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L33-1 to ERROR_LOC mainErr4REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 9 edges. [2024-09-11 20:47:05,025 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-11 20:47:05,025 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-11 20:47:05,025 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L33-1 to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-11 20:47:05,026 INFO L130 InvariantChecker]: Will check 4 loop-free subgraphs from loop head to error location, 3 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from loop head to loop head [2024-09-11 20:47:05,076 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:47:05,078 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:05,079 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:05,080 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:05,085 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:05,087 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,103 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:47:05,109 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,110 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:05,110 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:05,110 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:05,111 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:05,149 INFO L514 InvariantChecker]: The annotation(s) from loop head L33-1 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:47:05,179 INFO L314 BlockEncoder]: Initial Icfg 10 locations, 9 edges [2024-09-11 20:47:05,179 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:05,180 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:05,180 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:05,180 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:05,180 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,213 INFO L101 BaseMinimizeStates]: Removed 16 edges and 8 locations by large block encoding [2024-09-11 20:47:05,214 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,214 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:05,214 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:05,214 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:05,214 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:05,218 INFO L514 InvariantChecker]: The annotation(s) from loop head L33-1 to error location mainErr5REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:47:05,234 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:47:05,236 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:05,236 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:05,236 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:05,237 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:05,237 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,238 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:47:05,240 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,240 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:05,240 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:05,241 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:05,241 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:05,247 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:05,265 INFO L314 BlockEncoder]: Initial Icfg 16 locations, 20 edges [2024-09-11 20:47:05,268 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:05,268 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:05,268 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:05,268 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:05,269 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,325 INFO L101 BaseMinimizeStates]: Removed 38 edges and 14 locations by large block encoding [2024-09-11 20:47:05,325 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,326 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:05,326 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:05,326 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:05,345 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:05,356 INFO L514 InvariantChecker]: The annotation(s) from loop head L33-1 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:05,366 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-11 20:47:05,366 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:05,366 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:05,367 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:05,367 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:05,367 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,367 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-11 20:47:05,370 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,370 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:05,370 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:05,370 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:05,370 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:05,392 INFO L314 BlockEncoder]: Initial Icfg 10 locations, 9 edges [2024-09-11 20:47:05,393 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:05,393 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:05,393 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:05,393 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:05,393 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,409 INFO L101 BaseMinimizeStates]: Removed 16 edges and 8 locations by large block encoding [2024-09-11 20:47:05,409 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,409 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:05,409 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:05,409 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:05,410 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:05,412 INFO L514 InvariantChecker]: The annotation(s) from loop head L33-1 to error location mainErr4REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:47:05,418 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:47:05,418 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:05,419 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:05,419 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:05,419 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:05,419 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,421 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:47:05,421 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,422 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:05,422 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:05,422 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:05,422 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:05,424 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:47:05,430 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:47:05,430 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:05,430 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:05,431 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:05,431 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:05,431 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,432 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:47:05,432 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,432 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:05,432 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:05,432 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:05,433 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:05,434 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:47:05,440 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:47:05,440 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:05,440 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:05,441 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:05,441 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:05,441 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,446 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:47:05,446 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:05,446 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:05,447 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:05,447 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:05,447 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:05,450 INFO L514 InvariantChecker]: The annotation(s) from loop head L33-1 to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:47:05,456 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-11 20:47:05,458 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2d1aa646 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:47:05, skipping insertion in model container [2024-09-11 20:47:05,458 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:47:05,460 INFO L158 Benchmark]: Toolchain (without parser) took 1160.83ms. Allocated memory is still 148.9MB. Free memory was 116.0MB in the beginning and 89.5MB in the end (delta: 26.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-09-11 20:47:05,461 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:05,461 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 148.9MB. Free memory is still 118.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:05,462 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.96ms. Allocated memory is still 148.9MB. Free memory was 116.0MB in the beginning and 102.5MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:47:05,463 INFO L158 Benchmark]: Boogie Preprocessor took 51.99ms. Allocated memory is still 148.9MB. Free memory was 102.5MB in the beginning and 100.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:47:05,463 INFO L158 Benchmark]: RCFGBuilder took 361.83ms. Allocated memory is still 148.9MB. Free memory was 100.4MB in the beginning and 85.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:47:05,464 INFO L158 Benchmark]: Referee took 443.19ms. Allocated memory is still 148.9MB. Free memory was 85.7MB in the beginning and 89.5MB in the end (delta: -3.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-11 20:47:05,467 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is not a valid proof of correctness. Annotation is not a valid proof of correctness. Annotation is not valid for all loop-free paths from entry of procedure main to check that invariant of correctness witness holds at line 18. One counterexample starts in and ends in m=0, n=0. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 18. Annotation is valid for all loop-free paths from loop head at line 18 to check that procedure precondition always holds at line 19. Annotation is valid for all loop-free paths from loop head at line 18 to check that procedure precondition always holds at line 27. Annotation is valid for all loop-free paths from loop head at line 18 to check that procedure precondition always holds at line 38. Annotation is valid for all loop-free paths from loop head at line 18 to loop head at line 18. 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 13. Annotation is valid for all loop-free paths from loop head at line 18 to check that procedure precondition always holds at line 19. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.21ms. Allocated memory is still 148.9MB. Free memory is still 118.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.96ms. Allocated memory is still 148.9MB. Free memory was 116.0MB in the beginning and 102.5MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.99ms. Allocated memory is still 148.9MB. Free memory was 102.5MB in the beginning and 100.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 361.83ms. Allocated memory is still 148.9MB. Free memory was 100.4MB in the beginning and 85.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 443.19ms. Allocated memory is still 148.9MB. Free memory was 85.7MB in the beginning and 89.5MB in the end (delta: -3.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:47:05,494 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