./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound1.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/divbin2_unwindbound1.i ../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound1.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 13:27:08,350 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:27:08,421 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:27:08,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:27:08,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:27:08,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:27:08,444 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:27:08,444 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:27:08,444 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:27:08,445 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:27:08,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:27:08,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:27:08,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:27:08,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:27:08,446 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:27:08,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:27:08,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:27:08,447 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:27:08,447 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:27:08,449 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:27:08,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:27:08,452 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:27:08,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:27:08,452 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:27:08,452 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:27:08,452 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:27:08,452 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:27:08,453 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:27:08,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:27:08,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:27:08,453 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:27:08,453 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:27:08,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:27:08,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:27:08,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:27:08,454 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:27:08,454 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:27:08,454 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:27:08,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:27:08,454 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:27:08,455 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:27:08,457 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:27:08,457 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:27:08,457 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:27:08,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:27:08,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:27:08,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:27:08,665 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:27:08,665 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:27:08,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i [2024-09-20 13:27:09,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:27:09,994 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:27:09,996 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i [2024-09-20 13:27:10,005 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/fe76950a1/0b55eaad78af402ca86fc926825e0fab/FLAG02fcebf4e [2024-09-20 13:27:10,026 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/fe76950a1/0b55eaad78af402ca86fc926825e0fab [2024-09-20 13:27:10,028 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:27:10,029 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:27:10,030 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound1.yml/witness-2.1.yml [2024-09-20 13:27:10,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:27:10,077 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:27:10,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:27:10,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:27:10,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:27:10,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:27:10" (1/2) ... [2024-09-20 13:27:10,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230aa5a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:27:10, skipping insertion in model container [2024-09-20 13:27:10,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:27:10" (1/2) ... [2024-09-20 13:27:10,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@37f99039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:27:10, skipping insertion in model container [2024-09-20 13:27:10,086 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 01:27:10" (2/2) ... [2024-09-20 13:27:10,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230aa5a3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:27:10, skipping insertion in model container [2024-09-20 13:27:10,086 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 01:27:10" (2/2) ... [2024-09-20 13:27:10,095 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:27:10,097 INFO L1541 ArrayList]: Loop invariant at [L34-L37] ((\old(counter) == 0) && ((((A == r) && (counter == 0)) && (q == 0)) || (((A == r) && (1 <= counter)) && (q == 0)))) [2024-09-20 13:27:10,097 INFO L1541 ArrayList]: Loop invariant at [L38-L47] ((((A == r) && (1 <= counter)) && (\old(counter) == 0)) && (q == 0)) [2024-09-20 13:27:10,097 INFO L1541 ArrayList]: Function contract at [L26]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-20 13:27:10,097 INFO L1541 ArrayList]: Function contract at [L18]: requires ((1 <= counter) && (1 <= \old(cond))), ensures ((1 <= counter) && (1 <= \old(cond))) [2024-09-20 13:27:10,112 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:27:10,242 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/divbin2_unwindbound1.i[951,964] [2024-09-20 13:27:10,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:27:10,266 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 13:27:10,298 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/divbin2_unwindbound1.i[951,964] Start Parsing Global Start Parsing Global Start Parsing Local Start Parsing Local [2024-09-20 13:27:10,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:27:10,319 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:27:10,319 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:27:10 WrapperNode [2024-09-20 13:27:10,319 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:27:10,320 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:27:10,320 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:27:10,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:27:10,330 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 01:27:10" (1/1) ... [2024-09-20 13:27:10,330 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 01:27:10" (1/1) ... [2024-09-20 13:27:10,334 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 01:27:10" (1/1) ... [2024-09-20 13:27:10,345 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 [2024-09-20 13:27:10,345 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 01:27:10" (1/1) ... [2024-09-20 13:27:10,345 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 01:27:10" (1/1) ... [2024-09-20 13:27:10,353 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 01:27:10" (1/1) ... [2024-09-20 13:27:10,355 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 01:27:10" (1/1) ... [2024-09-20 13:27:10,356 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 01:27:10" (1/1) ... [2024-09-20 13:27:10,357 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 01:27:10" (1/1) ... [2024-09-20 13:27:10,362 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:27:10,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:27:10,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:27:10,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:27:10,363 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 01:27:10" (1/1) ... [2024-09-20 13:27:10,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:27:10,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:27:10,388 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 13:27:10,390 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 13:27:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:27:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:27:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:27:10,425 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:27:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:27:10,426 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:27:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:27:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:27:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-20 13:27:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-20 13:27:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:27:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:27:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 13:27:10,427 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:27:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:27:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:27:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:27:10,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 13:27:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:27:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 13:27:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 13:27:10,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:27:10,488 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:27:10,490 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:27:10,526 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:27:10,638 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:27:10,646 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:27:10,671 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:27:10,673 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-20 13:27:10,673 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:27:10 BoogieIcfgContainer [2024-09-20 13:27:10,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:27:10,674 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:27:10,674 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:27:10,675 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:27:10,675 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:27:10" (1/4) ... [2024-09-20 13:27:10,676 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4c8139e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:27:10, skipping insertion in model container [2024-09-20 13:27:10,676 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 01:27:10" (2/4) ... [2024-09-20 13:27:10,677 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4c8139e2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:27:10, skipping insertion in model container [2024-09-20 13:27:10,677 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 01:27:10" (3/4) ... [2024-09-20 13:27:10,678 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4c8139e2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:27:10, skipping insertion in model container [2024-09-20 13:27:10,678 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 01:27:10" (4/4) ... [2024-09-20 13:27:10,679 INFO L79 RefereeObserver]: Analyzing ICFG divbin2_unwindbound1.i [2024-09-20 13:27:10,682 INFO L113 InvariantChecker]: Found 2 loops. [2024-09-20 13:27:10,682 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr4ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-20 13:27:10,682 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:27:10,683 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-20 13:27:10,683 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 13:27:10,683 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 13:27:10,683 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 13:27:10,684 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 13:27:10,684 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-20 13:27:10,684 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-20 13:27:10,685 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-20 13:27:10,685 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, 3 loop-free subgraphs from procedure entry to error location, 3 loop-free subgraphs from loop head to loop head [2024-09-20 13:27:10,732 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-20 13:27:10,733 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:10,733 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:10,735 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:10,736 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:10,737 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,785 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-20 13:27:10,786 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,787 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:10,787 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:10,788 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:10,791 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:10,804 INFO L520 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr4ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:27:10,821 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 13:27:10,821 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:10,821 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:10,821 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:10,822 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:10,822 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,828 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 13:27:10,829 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,829 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:10,829 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:10,829 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:10,833 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:10,843 INFO L520 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:27:10,859 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 13:27:10,859 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:10,859 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:10,860 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:10,860 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:10,860 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,862 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 13:27:10,862 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,863 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:10,863 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:10,863 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:10,863 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:10,867 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:27:10,882 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 13:27:10,883 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:10,883 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:10,886 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:10,886 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:10,886 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,898 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 13:27:10,900 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,900 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:10,900 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:10,900 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:10,901 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:10,907 INFO L520 InvariantChecker]: The annotation(s) from loop head L34-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:27:10,919 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:27:10,919 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:10,919 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:10,919 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:10,919 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:10,919 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,920 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:27:10,920 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,920 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:10,920 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:10,921 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:10,921 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:10,924 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:27:10,935 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:27:10,935 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:10,935 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:10,935 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:10,935 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:10,935 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,940 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:27:10,940 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,941 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:10,941 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:10,941 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:10,942 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:10,945 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:27:10,955 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:27:10,958 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:10,958 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:10,958 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:10,959 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:10,959 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,960 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:27:10,961 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,961 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:10,961 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:10,961 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:10,961 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:10,963 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:27:10,970 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-20 13:27:10,970 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:10,970 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:10,970 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:10,970 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:10,970 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,977 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-20 13:27:10,977 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:10,977 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:10,978 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:10,978 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:10,979 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:10,981 INFO L520 InvariantChecker]: The annotation(s) from loop head L34-4 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:27:10,992 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-20 13:27:10,993 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:10,993 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:10,993 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:10,993 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:10,994 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:11,021 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-20 13:27:11,025 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:11,025 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:11,025 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:11,025 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:11,035 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:11,038 INFO L520 InvariantChecker]: The annotation(s) from loop head L43-2 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:27:11,053 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-20 13:27:11,057 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:11,057 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:11,057 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:11,057 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:11,057 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:11,071 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-20 13:27:11,072 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:11,072 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:11,072 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:11,073 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:11,091 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:15,097 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:27:15,104 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-20 13:27:15,105 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4c8139e2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:27:15, skipping insertion in model container [2024-09-20 13:27:15,105 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:27:15,106 INFO L158 Benchmark]: Toolchain (without parser) took 5028.48ms. Allocated memory is still 182.5MB. Free memory was 152.5MB in the beginning and 142.4MB in the end (delta: 10.1MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2024-09-20 13:27:15,106 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:27:15,106 INFO L158 Benchmark]: Witness Parser took 1.15ms. Allocated memory is still 182.5MB. Free memory is still 154.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:27:15,107 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.74ms. Allocated memory is still 182.5MB. Free memory was 152.5MB in the beginning and 139.0MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:27:15,107 INFO L158 Benchmark]: Boogie Preprocessor took 42.02ms. Allocated memory is still 182.5MB. Free memory was 139.0MB in the beginning and 136.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:27:15,107 INFO L158 Benchmark]: RCFGBuilder took 311.05ms. Allocated memory is still 182.5MB. Free memory was 136.8MB in the beginning and 122.2MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:27:15,108 INFO L158 Benchmark]: Referee took 4430.43ms. Allocated memory is still 182.5MB. Free memory was 122.2MB in the beginning and 142.4MB in the end (delta: -20.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-09-20 13:27:15,109 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 38 to check that procedure precondition always holds at line 38. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 34. Annotation is valid for all loop-free paths from loop head at line 34 to loop head at line 38. 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 38 to loop head at line 38. 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 loop head at line 38 to exit of procedure main. Annotation is valid for all loop-free paths from loop head at line 34 to loop head at line 34. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from loop head at line 38 to check that procedure precondition always holds at line 39. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 1.15ms. Allocated memory is still 182.5MB. Free memory is still 154.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.74ms. Allocated memory is still 182.5MB. Free memory was 152.5MB in the beginning and 139.0MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.02ms. Allocated memory is still 182.5MB. Free memory was 139.0MB in the beginning and 136.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.05ms. Allocated memory is still 182.5MB. Free memory was 136.8MB in the beginning and 122.2MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 4430.43ms. Allocated memory is still 182.5MB. Free memory was 122.2MB in the beginning and 142.4MB in the end (delta: -20.2MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:27:15,126 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 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/divbin2_unwindbound1.i ../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound1.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 13:27:16,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:27:16,865 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 13:27:16,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:27:16,871 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:27:16,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:27:16,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:27:16,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:27:16,900 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:27:16,903 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:27:16,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:27:16,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:27:16,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:27:16,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:27:16,906 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:27:16,907 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:27:16,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:27:16,907 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:27:16,907 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:27:16,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:27:16,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:27:16,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:27:16,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:27:16,909 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 13:27:16,909 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 13:27:16,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:27:16,910 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 13:27:16,910 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:27:16,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:27:16,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:27:16,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:27:16,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:27:16,911 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:27:16,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:27:16,912 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:27:16,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:27:16,913 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:27:16,913 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:27:16,913 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:27:16,913 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 13:27:16,913 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 13:27:16,914 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:27:16,914 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:27:16,914 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:27:16,914 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:27:16,914 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 13:27:16,914 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:27:17,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:27:17,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:27:17,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:27:17,178 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:27:17,178 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:27:17,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i [2024-09-20 13:27:18,436 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:27:18,573 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:27:18,574 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i [2024-09-20 13:27:18,583 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/dee15947e/8a724ec899f6443e84996efc41c7ff00/FLAG1f0161c9a [2024-09-20 13:27:18,978 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/dee15947e/8a724ec899f6443e84996efc41c7ff00 [2024-09-20 13:27:18,980 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:27:18,981 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:27:18,981 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound1.yml/witness-2.1.yml [2024-09-20 13:27:19,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:27:19,026 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:27:19,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:27:19,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:27:19,031 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:27:19,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:27:18" (1/2) ... [2024-09-20 13:27:19,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c1b66e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:27:19, skipping insertion in model container [2024-09-20 13:27:19,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:27:18" (1/2) ... [2024-09-20 13:27:19,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5667d12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:27:19, skipping insertion in model container [2024-09-20 13:27:19,036 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 01:27:19" (2/2) ... [2024-09-20 13:27:19,037 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c1b66e3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:27:19, skipping insertion in model container [2024-09-20 13:27:19,037 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 01:27:19" (2/2) ... [2024-09-20 13:27:19,047 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:27:19,048 INFO L1541 ArrayList]: Loop invariant at [L38-L47] ((((A == r) && (1 <= counter)) && (\old(counter) == 0)) && (q == 0)) [2024-09-20 13:27:19,048 INFO L1541 ArrayList]: Loop invariant at [L34-L37] ((\old(counter) == 0) && ((((A == r) && (counter == 0)) && (q == 0)) || (((A == r) && (1 <= counter)) && (q == 0)))) [2024-09-20 13:27:19,048 INFO L1541 ArrayList]: Function contract at [L18]: requires ((1 <= counter) && (1 <= \old(cond))), ensures ((1 <= counter) && (1 <= \old(cond))) [2024-09-20 13:27:19,048 INFO L1541 ArrayList]: Function contract at [L26]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-20 13:27:19,064 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:27:19,194 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/divbin2_unwindbound1.i[951,964] [2024-09-20 13:27:19,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:27:19,221 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 13:27:19,253 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/divbin2_unwindbound1.i[951,964] Start Parsing Global Start Parsing Global Start Parsing Local Start Parsing Local [2024-09-20 13:27:19,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:27:19,280 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:27:19,281 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:27:19 WrapperNode [2024-09-20 13:27:19,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:27:19,282 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:27:19,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:27:19,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:27:19,292 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 01:27:19" (1/1) ... [2024-09-20 13:27:19,293 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 01:27:19" (1/1) ... [2024-09-20 13:27:19,301 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 01:27:19" (1/1) ... [2024-09-20 13:27:19,312 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 [2024-09-20 13:27:19,313 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 01:27:19" (1/1) ... [2024-09-20 13:27:19,313 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 01:27:19" (1/1) ... [2024-09-20 13:27:19,318 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 01:27:19" (1/1) ... [2024-09-20 13:27:19,323 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 01:27:19" (1/1) ... [2024-09-20 13:27:19,328 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 01:27:19" (1/1) ... [2024-09-20 13:27:19,329 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 01:27:19" (1/1) ... [2024-09-20 13:27:19,330 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:27:19,332 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:27:19,333 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:27:19,333 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:27:19,334 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 01:27:19" (1/1) ... [2024-09-20 13:27:19,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:27:19,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:27:19,359 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 13:27:19,362 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 13:27:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:27:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:27:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:27:19,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:27:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:27:19,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:27:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:27:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:27:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-20 13:27:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-20 13:27:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:27:19,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:27:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 13:27:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:27:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:27:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:27:19,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:27:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-20 13:27:19,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:27:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-20 13:27:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-20 13:27:19,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:27:19,461 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:27:19,462 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:27:19,498 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:27:19,660 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:27:19,670 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:27:19,700 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:27:19,701 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-20 13:27:19,701 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:27:19 BoogieIcfgContainer [2024-09-20 13:27:19,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:27:19,702 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:27:19,702 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:27:19,703 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:27:19,703 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:27:18" (1/4) ... [2024-09-20 13:27:19,703 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@745604c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:27:19, skipping insertion in model container [2024-09-20 13:27:19,703 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 01:27:19" (2/4) ... [2024-09-20 13:27:19,703 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@745604c4 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:27:19, skipping insertion in model container [2024-09-20 13:27:19,703 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 01:27:19" (3/4) ... [2024-09-20 13:27:19,703 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@745604c4 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:27:19, skipping insertion in model container [2024-09-20 13:27:19,704 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 01:27:19" (4/4) ... [2024-09-20 13:27:19,705 INFO L79 RefereeObserver]: Analyzing ICFG divbin2_unwindbound1.i [2024-09-20 13:27:19,708 INFO L113 InvariantChecker]: Found 2 loops. [2024-09-20 13:27:19,709 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr4ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-20 13:27:19,709 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:27:19,711 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-20 13:27:19,712 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 13:27:19,712 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 13:27:19,712 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 13:27:19,712 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 13:27:19,712 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-20 13:27:19,712 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-20 13:27:19,713 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-20 13:27:19,713 INFO L131 InvariantChecker]: Will check 3 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, 3 loop-free subgraphs from loop head to loop head [2024-09-20 13:27:19,753 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-20 13:27:19,754 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:19,755 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:19,755 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:19,756 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:19,758 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,800 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-20 13:27:19,801 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,801 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:19,801 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:19,801 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:19,804 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:19,813 INFO L520 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr4ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:27:19,826 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 13:27:19,826 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:19,826 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:19,826 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:19,826 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:19,826 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,831 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 13:27:19,832 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,832 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:19,832 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:19,832 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:19,832 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:19,835 INFO L520 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:27:19,846 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 13:27:19,846 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:19,846 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:19,846 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:19,847 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:19,847 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,848 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 13:27:19,848 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,848 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:19,848 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:19,849 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:19,849 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:19,856 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:27:19,864 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 13:27:19,865 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:19,865 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:19,865 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:19,865 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:19,865 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,870 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 13:27:19,871 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,871 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:19,871 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:19,871 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:19,871 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:19,874 INFO L520 InvariantChecker]: The annotation(s) from loop head L34-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:27:19,881 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:27:19,882 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:19,882 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:19,882 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:19,882 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:19,882 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,883 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:27:19,883 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,883 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:19,884 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:19,884 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:19,884 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:19,885 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:27:19,891 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:27:19,892 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:19,892 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:19,892 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:19,892 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:19,892 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,894 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:27:19,894 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,894 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:19,895 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:19,895 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:19,896 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:19,897 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:27:19,903 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:27:19,903 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:19,903 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:19,904 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:19,904 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:19,904 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,905 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:27:19,905 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,905 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:19,905 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:19,905 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:19,905 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:19,906 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:27:19,913 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-20 13:27:19,914 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:19,914 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:19,914 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:19,914 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:19,915 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,930 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-20 13:27:19,930 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,930 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:19,931 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:19,931 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:19,933 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:19,953 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-20 13:27:19,953 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:19,954 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:19,954 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:19,954 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:19,954 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,970 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-20 13:27:19,970 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:19,970 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:19,971 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:19,971 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:19,976 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:19,985 INFO L520 InvariantChecker]: The annotation(s) from loop head L43-2 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:27:19,994 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-20 13:27:19,996 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:19,996 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:19,996 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:19,996 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:19,996 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:20,004 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-20 13:27:20,004 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:20,005 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:20,005 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:20,005 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:20,007 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:20,029 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-20 13:27:20,030 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@745604c4 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:27:20, skipping insertion in model container [2024-09-20 13:27:20,031 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:27:20,033 INFO L158 Benchmark]: Toolchain (without parser) took 1005.32ms. Allocated memory is still 102.8MB. Free memory was 76.4MB in the beginning and 63.0MB in the end (delta: 13.4MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2024-09-20 13:27:20,033 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 69.2MB. Free memory is still 38.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:27:20,033 INFO L158 Benchmark]: Witness Parser took 0.09ms. Allocated memory is still 102.8MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:27:20,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.52ms. Allocated memory is still 102.8MB. Free memory was 76.1MB in the beginning and 62.1MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:27:20,035 INFO L158 Benchmark]: Boogie Preprocessor took 49.37ms. Allocated memory is still 102.8MB. Free memory was 61.8MB in the beginning and 59.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:27:20,035 INFO L158 Benchmark]: RCFGBuilder took 369.22ms. Allocated memory is still 102.8MB. Free memory was 59.7MB in the beginning and 75.0MB in the end (delta: -15.3MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2024-09-20 13:27:20,036 INFO L158 Benchmark]: Referee took 328.65ms. Allocated memory is still 102.8MB. Free memory was 75.0MB in the beginning and 63.0MB in the end (delta: 12.1MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2024-09-20 13:27:20,038 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 34 to loop head at line 38. One counterexample starts in \old(counter)=0, A=0, b=0, counter=2147483647, q=0, r=0 and ends in \old(counter)=0, A=0, b=0, counter=-2147483648, q=0, r=0. Annotation is not valid for all loop-free paths from loop head at line 38 to check that procedure precondition always holds at line 38. One counterexample starts in \old(counter)=0, A=138477829, b=0, B=0, counter=2147483647, q=0, r=138477829 and ends in \old(counter)=0, A=138477829, B=0, b=0, counter=-2147483648, q=0, r=138477829. Annotation is valid for all loop-free paths from loop head at line 38 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 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 34 to loop head at line 34. Annotation is valid for all loop-free paths from loop head at line 38 to loop head at line 38. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 34. Annotation is valid for all loop-free paths from loop head at line 38 to check that procedure precondition always holds at line 39. 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 69.2MB. Free memory is still 38.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.09ms. Allocated memory is still 102.8MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.52ms. Allocated memory is still 102.8MB. Free memory was 76.1MB in the beginning and 62.1MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.37ms. Allocated memory is still 102.8MB. Free memory was 61.8MB in the beginning and 59.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 369.22ms. Allocated memory is still 102.8MB. Free memory was 59.7MB in the beginning and 75.0MB in the end (delta: -15.3MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * Referee took 328.65ms. Allocated memory is still 102.8MB. Free memory was 75.0MB in the beginning and 63.0MB in the end (delta: 12.1MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-20 13:27:20,069 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