./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound2.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1d5fa637 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_unwindbound2.i ../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound2.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-1d5fa63-m [2024-09-13 10:08:59,716 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:08:59,767 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-13 10:08:59,771 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:08:59,771 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:08:59,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:08:59,794 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:08:59,794 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:08:59,794 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:08:59,795 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:08:59,795 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:08:59,795 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:08:59,796 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:08:59,799 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:08:59,799 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:08:59,800 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:08:59,800 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:08:59,800 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:08:59,800 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 10:08:59,800 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:08:59,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:08:59,801 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:08:59,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:08:59,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:08:59,802 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:08:59,802 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:08:59,803 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:08:59,803 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:08:59,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:08:59,803 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:08:59,803 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:08:59,804 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:08:59,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:08:59,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:08:59,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:08:59,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:08:59,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:08:59,806 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 10:08:59,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 10:08:59,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:08:59,806 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:08:59,807 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:08:59,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:08:59,807 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:09:00,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:09:00,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:09:00,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:09:00,025 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:09:00,025 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:09:00,026 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-13 10:09:01,359 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:09:01,519 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:09:01,520 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-13 10:09:01,528 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/f44f608f2/c55cd71a7eb0427e83dfc2ca6fff01be/FLAG6a245a7ef [2024-09-13 10:09:01,543 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/f44f608f2/c55cd71a7eb0427e83dfc2ca6fff01be [2024-09-13 10:09:01,545 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:09:01,546 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:09:01,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound2.yml/witness-2.1.yml [2024-09-13 10:09:01,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:09:01,598 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:09:01,599 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:09:01,600 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:09:01,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:09:01,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:09:01" (1/2) ... [2024-09-13 10:09:01,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d0122f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:09:01, skipping insertion in model container [2024-09-13 10:09:01,607 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:09:01" (1/2) ... [2024-09-13 10:09:01,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@640f9b57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:09:01, skipping insertion in model container [2024-09-13 10:09:01,608 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:09:01" (2/2) ... [2024-09-13 10:09:01,609 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d0122f9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:09:01, skipping insertion in model container [2024-09-13 10:09:01,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:09:01" (2/2) ... [2024-09-13 10:09:01,620 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:09:01,620 INFO L1541 ArrayList]: Loop invariant at [L34-L37] ((\old(counter) == 0) && (((((A == r) && (counter == 0)) && (B == b)) && (q == 0)) || (((A == r) && (1 <= counter)) && (q == 0)))) [2024-09-13 10:09:01,620 INFO L1541 ArrayList]: Loop invariant at [L38-L47] ((\old(counter) == 0) && ((((2 <= counter) && (A == r)) && (q == 0)) || ((((A == r) && (1 <= counter)) && (B == b)) && (q == 0)))) [2024-09-13 10:09:01,621 INFO L1541 ArrayList]: Function contract at [L26]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-13 10:09:01,621 INFO L1541 ArrayList]: Function contract at [L18]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-13 10:09:01,637 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:09:01,771 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i[951,964] [2024-09-13 10:09:01,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:09:01,796 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-13 10:09:01,830 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i[951,964] Start Parsing Global Start Parsing Global Start Parsing Local Start Parsing Local [2024-09-13 10:09:01,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:09:01,859 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:09:01,860 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:09:01 WrapperNode [2024-09-13 10:09:01,860 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:09:01,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:09:01,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:09:01,861 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:09:01,871 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 13.09 10:09:01" (1/1) ... [2024-09-13 10:09:01,872 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 13.09 10:09:01" (1/1) ... [2024-09-13 10:09:01,877 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 13.09 10:09:01" (1/1) ... [2024-09-13 10:09:01,887 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 [2024-09-13 10:09:01,887 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 13.09 10:09:01" (1/1) ... [2024-09-13 10:09:01,887 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 13.09 10:09:01" (1/1) ... [2024-09-13 10:09:01,896 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 13.09 10:09:01" (1/1) ... [2024-09-13 10:09:01,900 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 13.09 10:09:01" (1/1) ... [2024-09-13 10:09:01,902 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 13.09 10:09:01" (1/1) ... [2024-09-13 10:09:01,906 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 13.09 10:09:01" (1/1) ... [2024-09-13 10:09:01,907 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:09:01,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:09:01,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:09:01,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:09:01,911 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 13.09 10:09:01" (1/1) ... [2024-09-13 10:09:01,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:09:01,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:09:01,941 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) [2024-09-13 10:09:01,943 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 [2024-09-13 10:09:01,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:09:01,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:09:01,983 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:09:01,983 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 10:09:01,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-13 10:09:01,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:09:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:09:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:09:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-13 10:09:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-13 10:09:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:09:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:09:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-13 10:09:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 10:09:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 10:09:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:09:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:09:01,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-13 10:09:01,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:09:01,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-13 10:09:01,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-13 10:09:01,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:09:02,050 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:09:02,052 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:09:02,092 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-13 10:09:02,194 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-13 10:09:02,204 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:09:02,224 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:09:02,224 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-13 10:09:02,224 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:09:02 BoogieIcfgContainer [2024-09-13 10:09:02,224 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:09:02,225 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:09:02,225 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:09:02,226 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:09:02,239 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:09:01" (1/4) ... [2024-09-13 10:09:02,240 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@441dd026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:09:02, skipping insertion in model container [2024-09-13 10:09:02,240 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:09:01" (2/4) ... [2024-09-13 10:09:02,240 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@441dd026 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:09:02, skipping insertion in model container [2024-09-13 10:09:02,241 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 13.09 10:09:01" (3/4) ... [2024-09-13 10:09:02,241 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@441dd026 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:09:02, skipping insertion in model container [2024-09-13 10:09:02,241 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:09:02" (4/4) ... [2024-09-13 10:09:02,242 INFO L79 RefereeObserver]: Analyzing ICFG divbin2_unwindbound2.i [2024-09-13 10:09:02,247 INFO L112 InvariantChecker]: Found 2 loops. [2024-09-13 10:09:02,248 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr4ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-13 10:09:02,253 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-13 10:09:02,258 INFO L367 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-13 10:09:02,258 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-13 10:09:02,259 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-13 10:09:02,259 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-13 10:09:02,259 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-13 10:09:02,259 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-13 10:09:02,259 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-13 10:09:02,259 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-13 10:09:02,259 INFO L130 InvariantChecker]: Will check 3 loop-free subgraphs from loop head to loop head, 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 error location [2024-09-13 10:09:02,340 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-13 10:09:02,341 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:02,341 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:02,342 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:02,342 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:02,345 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:02,398 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-13 10:09:02,399 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:02,399 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:02,399 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:02,399 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:02,406 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:02,416 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr4ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-13 10:09:02,429 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-13 10:09:02,430 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:02,430 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:02,430 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:02,430 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:02,430 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:02,437 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-13 10:09:02,437 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:02,437 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:02,437 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:02,437 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:02,437 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:06,440 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-13 10:09:06,452 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-13 10:09:06,452 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:06,452 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:06,452 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:06,452 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:06,452 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,454 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-13 10:09:06,455 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,455 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:06,455 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:06,455 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:06,455 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:06,462 INFO L514 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-13 10:09:06,472 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-13 10:09:06,472 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:06,472 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:06,473 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:06,473 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:06,473 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,483 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-13 10:09:06,483 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,483 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:06,483 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:06,483 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:06,484 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:06,486 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-13 10:09:06,499 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-13 10:09:06,499 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:06,499 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:06,499 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:06,499 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:06,500 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,500 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-13 10:09:06,500 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,500 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:06,501 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:06,501 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:06,501 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:06,502 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-13 10:09:06,511 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-13 10:09:06,512 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:06,512 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:06,512 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:06,512 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:06,513 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,516 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 10:09:06,516 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,517 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:06,517 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:06,517 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:06,518 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:06,522 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-13 10:09:06,529 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-13 10:09:06,529 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:06,529 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:06,529 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:06,529 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:06,529 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,530 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-13 10:09:06,530 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,530 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:06,531 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:06,531 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:06,531 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:06,532 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-13 10:09:06,539 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-13 10:09:06,541 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:06,541 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:06,541 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:06,542 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:06,542 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,555 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-13 10:09:06,555 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,555 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:06,555 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:06,555 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:06,557 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:06,561 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-4 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-13 10:09:06,574 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-13 10:09:06,575 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:06,575 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:06,575 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:06,575 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:06,575 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,594 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-13 10:09:06,594 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,594 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:06,594 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:06,595 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:06,598 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:06,602 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-13 10:09:06,615 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-13 10:09:06,616 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:06,616 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:06,616 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:06,617 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:06,617 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,626 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-13 10:09:06,626 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:06,627 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:06,627 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:06,627 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:06,630 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:10,632 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-13 10:09:10,641 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-13 10:09:10,642 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@441dd026 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 13.09 10:09:10, skipping insertion in model container [2024-09-13 10:09:10,642 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-13 10:09:10,643 INFO L158 Benchmark]: Toolchain (without parser) took 9044.75ms. Allocated memory is still 159.4MB. Free memory was 88.9MB in the beginning and 75.6MB in the end (delta: 13.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-09-13 10:09:10,644 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:09:10,644 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:09:10,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.91ms. Allocated memory is still 159.4MB. Free memory was 88.7MB in the beginning and 74.9MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 10:09:10,645 INFO L158 Benchmark]: Boogie Preprocessor took 46.80ms. Allocated memory is still 159.4MB. Free memory was 74.9MB in the beginning and 72.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 10:09:10,645 INFO L158 Benchmark]: RCFGBuilder took 316.24ms. Allocated memory is still 159.4MB. Free memory was 72.8MB in the beginning and 58.0MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-13 10:09:10,646 INFO L158 Benchmark]: Referee took 8416.97ms. Allocated memory is still 159.4MB. Free memory was 58.0MB in the beginning and 75.6MB in the end (delta: -17.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-13 10:09:10,647 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 39. 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 loop head at line 38 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 exit of procedure main. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 20. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from loop head at line 34 to loop head at line 34. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.91ms. Allocated memory is still 159.4MB. Free memory was 88.7MB in the beginning and 74.9MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.80ms. Allocated memory is still 159.4MB. Free memory was 74.9MB in the beginning and 72.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 316.24ms. Allocated memory is still 159.4MB. Free memory was 72.8MB in the beginning and 58.0MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 8416.97ms. Allocated memory is still 159.4MB. Free memory was 58.0MB in the beginning and 75.6MB in the end (delta: -17.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 10:09:10,669 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_unwindbound2.i ../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound2.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-1d5fa63-m [2024-09-13 10:09:12,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:09:12,567 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-13 10:09:12,571 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:09:12,571 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:09:12,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:09:12,598 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:09:12,599 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:09:12,599 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:09:12,600 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:09:12,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:09:12,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:09:12,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:09:12,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:09:12,601 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:09:12,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:09:12,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:09:12,602 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:09:12,602 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:09:12,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:09:12,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:09:12,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:09:12,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:09:12,606 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-13 10:09:12,606 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-13 10:09:12,607 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:09:12,607 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-13 10:09:12,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:09:12,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:09:12,607 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:09:12,607 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:09:12,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:09:12,608 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:09:12,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:09:12,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:09:12,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:09:12,608 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:09:12,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:09:12,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:09:12,609 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-13 10:09:12,612 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-13 10:09:12,612 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:09:12,612 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:09:12,612 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:09:12,613 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:09:12,613 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-13 10:09:12,613 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:09:12,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:09:12,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:09:12,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:09:12,887 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:09:12,888 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:09:12,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/divbin2_unwindbound2.yml/witness-2.1.yml [2024-09-13 10:09:12,929 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:09:12,930 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:09:12,930 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-13 10:09:14,230 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:09:14,415 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:09:14,416 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i [2024-09-13 10:09:14,422 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/3ac6b2732/588fa040cb8e4d37a6aa74650ac95cb6/FLAG9861bf523 [2024-09-13 10:09:14,434 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/3ac6b2732/588fa040cb8e4d37a6aa74650ac95cb6 [2024-09-13 10:09:14,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:09:14,435 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:09:14,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:09:14,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:09:14,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:09:14,442 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:09:12" (1/2) ... [2024-09-13 10:09:14,443 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30cc3400 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:09:14, skipping insertion in model container [2024-09-13 10:09:14,443 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:09:12" (1/2) ... [2024-09-13 10:09:14,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@9fd1958 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:09:14, skipping insertion in model container [2024-09-13 10:09:14,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:09:14" (2/2) ... [2024-09-13 10:09:14,444 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30cc3400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:09:14, skipping insertion in model container [2024-09-13 10:09:14,444 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:09:14" (2/2) ... [2024-09-13 10:09:14,456 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:09:14,456 INFO L1541 ArrayList]: Loop invariant at [L34-L37] ((\old(counter) == 0) && (((((A == r) && (counter == 0)) && (B == b)) && (q == 0)) || (((A == r) && (1 <= counter)) && (q == 0)))) [2024-09-13 10:09:14,457 INFO L1541 ArrayList]: Loop invariant at [L38-L47] ((\old(counter) == 0) && ((((2 <= counter) && (A == r)) && (q == 0)) || ((((A == r) && (1 <= counter)) && (B == b)) && (q == 0)))) [2024-09-13 10:09:14,457 INFO L1541 ArrayList]: Function contract at [L26]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-13 10:09:14,457 INFO L1541 ArrayList]: Function contract at [L18]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-13 10:09:14,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:09:14,613 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i[951,964] [2024-09-13 10:09:14,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:09:14,647 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-13 10:09:14,683 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound2.i[951,964] Start Parsing Global Start Parsing Global Start Parsing Local Start Parsing Local [2024-09-13 10:09:14,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:09:14,714 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:09:14,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:09:14 WrapperNode [2024-09-13 10:09:14,715 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:09:14,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:09:14,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:09:14,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:09:14,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:09:14" (1/1) ... [2024-09-13 10:09:14,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:09:14" (1/1) ... [2024-09-13 10:09:14,736 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:09:14" (1/1) ... [2024-09-13 10:09:14,749 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 [2024-09-13 10:09:14,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:09:14" (1/1) ... [2024-09-13 10:09:14,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:09:14" (1/1) ... [2024-09-13 10:09:14,759 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:09:14" (1/1) ... [2024-09-13 10:09:14,762 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:09:14" (1/1) ... [2024-09-13 10:09:14,763 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:09:14" (1/1) ... [2024-09-13 10:09:14,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:09:14" (1/1) ... [2024-09-13 10:09:14,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:09:14,770 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:09:14,770 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:09:14,770 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:09:14,771 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:09:14" (1/1) ... [2024-09-13 10:09:14,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:09:14,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:09:14,802 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) [2024-09-13 10:09:14,809 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 [2024-09-13 10:09:14,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:09:14,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:09:14,844 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:09:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 10:09:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-13 10:09:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:09:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:09:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:09:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-13 10:09:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-13 10:09:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:09:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:09:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-13 10:09:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 10:09:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 10:09:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:09:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:09:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-13 10:09:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:09:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-13 10:09:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-13 10:09:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:09:14,938 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:09:14,940 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:09:15,024 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-13 10:09:15,187 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-13 10:09:15,203 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:09:15,239 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:09:15,241 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-13 10:09:15,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:09:15 BoogieIcfgContainer [2024-09-13 10:09:15,242 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:09:15,242 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:09:15,242 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:09:15,243 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:09:15,243 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:09:12" (1/4) ... [2024-09-13 10:09:15,243 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1d25c0c3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:09:15, skipping insertion in model container [2024-09-13 10:09:15,243 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:09:14" (2/4) ... [2024-09-13 10:09:15,244 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1d25c0c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:09:15, skipping insertion in model container [2024-09-13 10:09:15,244 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:09:14" (3/4) ... [2024-09-13 10:09:15,244 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1d25c0c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:09:15, skipping insertion in model container [2024-09-13 10:09:15,244 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:09:15" (4/4) ... [2024-09-13 10:09:15,245 INFO L79 RefereeObserver]: Analyzing ICFG divbin2_unwindbound2.i [2024-09-13 10:09:15,248 INFO L112 InvariantChecker]: Found 2 loops. [2024-09-13 10:09:15,249 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr4ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-13 10:09:15,249 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-13 10:09:15,249 INFO L367 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-13 10:09:15,250 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-13 10:09:15,250 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-13 10:09:15,250 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-13 10:09:15,250 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-13 10:09:15,251 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L34-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-13 10:09:15,251 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-13 10:09:15,251 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L43-2 to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-13 10:09:15,251 INFO L130 InvariantChecker]: Will check 3 loop-free subgraphs from loop head to loop head, 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 [2024-09-13 10:09:15,305 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-13 10:09:15,306 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:15,307 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:15,307 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:15,308 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:15,310 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,352 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-13 10:09:15,353 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,354 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:15,354 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:15,355 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:15,358 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:15,375 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr4ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-13 10:09:15,398 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-13 10:09:15,401 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:15,401 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:15,401 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:15,402 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:15,402 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,408 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-13 10:09:15,408 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,409 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:15,409 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:15,409 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:15,409 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:15,430 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-13 10:09:15,458 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-13 10:09:15,458 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:15,458 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:15,458 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:15,458 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:15,458 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,464 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-13 10:09:15,464 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,464 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:15,464 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:15,464 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:15,464 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:15,471 INFO L514 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-13 10:09:15,487 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-13 10:09:15,488 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:15,488 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:15,488 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:15,488 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:15,488 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,507 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-13 10:09:15,507 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,507 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:15,507 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:15,507 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:15,507 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:15,512 INFO L514 InvariantChecker]: The annotation(s) from loop head L34-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-13 10:09:15,524 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-13 10:09:15,524 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:15,524 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:15,524 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:15,524 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:15,524 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,525 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-13 10:09:15,525 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,525 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:15,526 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:15,526 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:15,526 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:15,528 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-13 10:09:15,540 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-13 10:09:15,542 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:15,542 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:15,542 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:15,542 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:15,542 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,544 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 10:09:15,545 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,546 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:15,546 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:15,546 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:15,547 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:15,550 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-13 10:09:15,565 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-13 10:09:15,566 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:15,566 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:15,567 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:15,567 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:15,567 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,569 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-13 10:09:15,569 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,569 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:15,570 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:15,570 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:15,570 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:15,572 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-13 10:09:15,581 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-13 10:09:15,582 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:15,582 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:15,585 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:15,586 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:15,586 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,601 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-13 10:09:15,601 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,601 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:15,602 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:15,602 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:15,606 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:15,627 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-13 10:09:15,627 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:15,627 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:15,627 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:15,627 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:15,627 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,646 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-13 10:09:15,647 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,647 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:15,647 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:15,647 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:15,652 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:15,661 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-13 10:09:15,671 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-13 10:09:15,672 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:09:15,672 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:09:15,672 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:09:15,672 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:09:15,673 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,684 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-13 10:09:15,684 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:09:15,684 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:09:15,684 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:09:15,684 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:09:15,686 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:09:15,703 INFO L514 InvariantChecker]: The annotation(s) from loop head L43-2 to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-13 10:09:15,713 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-13 10:09:15,714 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1d25c0c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 13.09 10:09:15, skipping insertion in model container [2024-09-13 10:09:15,714 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-13 10:09:15,717 INFO L158 Benchmark]: Toolchain (without parser) took 1280.33ms. Allocated memory was 81.8MB in the beginning and 113.2MB in the end (delta: 31.5MB). Free memory was 59.1MB in the beginning and 89.3MB in the end (delta: -30.2MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2024-09-13 10:09:15,717 INFO L158 Benchmark]: Witness Parser took 0.09ms. Allocated memory is still 54.5MB. Free memory was 31.8MB in the beginning and 31.7MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:09:15,718 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 54.5MB. Free memory was 29.7MB in the beginning and 29.6MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:09:15,718 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.58ms. Allocated memory is still 81.8MB. Free memory was 58.8MB in the beginning and 44.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-13 10:09:15,718 INFO L158 Benchmark]: Boogie Preprocessor took 53.10ms. Allocated memory is still 81.8MB. Free memory was 44.5MB in the beginning and 42.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 10:09:15,719 INFO L158 Benchmark]: RCFGBuilder took 472.09ms. Allocated memory is still 81.8MB. Free memory was 42.2MB in the beginning and 50.1MB in the end (delta: -7.9MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-09-13 10:09:15,719 INFO L158 Benchmark]: Referee took 472.21ms. Allocated memory was 81.8MB in the beginning and 113.2MB in the end (delta: 31.5MB). Free memory was 50.1MB in the beginning and 89.3MB in the end (delta: -39.2MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2024-09-13 10:09:15,722 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, B=0, counter=2147483647, q=0, r=0 and ends in \old(counter)=0, A=0, B=0, b=0, counter=-2147483648, q=0, r=0. 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 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 38. 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 loop head at line 34 to loop head at line 34. Annotation is valid for all loop-free paths from entry of procedure ULTIMATE.start to check that procedure precondition always holds at line -1. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from loop head at line 38 to loop head at line 38. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.09ms. Allocated memory is still 54.5MB. Free memory was 31.8MB in the beginning and 31.7MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.09ms. Allocated memory is still 54.5MB. Free memory was 29.7MB in the beginning and 29.6MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.58ms. Allocated memory is still 81.8MB. Free memory was 58.8MB in the beginning and 44.5MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.10ms. Allocated memory is still 81.8MB. Free memory was 44.5MB in the beginning and 42.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 472.09ms. Allocated memory is still 81.8MB. Free memory was 42.2MB in the beginning and 50.1MB in the end (delta: -7.9MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Referee took 472.21ms. Allocated memory was 81.8MB in the beginning and 113.2MB in the end (delta: 31.5MB). Free memory was 50.1MB in the beginning and 89.3MB in the end (delta: -39.2MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 10:09:15,751 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE