./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound20.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound20.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-11 20:51:11,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:51:11,924 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:51:11,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:51:11,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:51:11,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:51:11,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:51:11,968 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:51:11,969 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:51:11,969 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:51:11,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:51:11,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:51:11,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:51:11,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:51:11,972 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:51:11,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:51:11,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:51:11,973 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:51:11,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:51:11,974 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:51:11,974 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:51:11,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:51:11,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:51:11,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:51:11,976 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:51:11,976 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:51:11,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:51:11,977 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:51:11,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:51:11,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:51:11,978 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:51:11,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:51:11,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:51:11,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:51:11,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:51:11,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:51:11,979 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:51:11,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:51:11,980 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:51:11,980 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:51:11,980 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:51:11,981 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:51:11,981 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:51:12,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:51:12,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:51:12,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:51:12,286 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:51:12,286 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:51:12,287 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2024-09-11 20:51:13,672 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:51:13,873 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:51:13,874 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2024-09-11 20:51:13,881 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/6e286a1a6/d264bc17b6844f8fa8077b057e84035f/FLAG238505d24 [2024-09-11 20:51:14,269 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/6e286a1a6/d264bc17b6844f8fa8077b057e84035f [2024-09-11 20:51:14,271 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:51:14,272 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:51:14,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound20.yml/witness-2.1.yml [2024-09-11 20:51:14,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:51:14,319 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:51:14,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:51:14,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:51:14,325 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:51:14,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:51:14" (1/2) ... [2024-09-11 20:51:14,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ea88e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:51:14, skipping insertion in model container [2024-09-11 20:51:14,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:51:14" (1/2) ... [2024-09-11 20:51:14,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3b5ba562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:51:14, skipping insertion in model container [2024-09-11 20:51:14,328 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:51:14" (2/2) ... [2024-09-11 20:51:14,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ea88e0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:51:14, skipping insertion in model container [2024-09-11 20:51:14,329 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:51:14" (2/2) ... [2024-09-11 20:51:14,335 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:51:14,336 INFO L1541 ArrayList]: Loop invariant at [L36-L49] (((((unsigned long long) a * b) % 2147483648) * 2) == ((((unsigned long long) v * y) + ((unsigned long long) u * x)) % 4294967296)) [2024-09-11 20:51:14,336 INFO L1541 ArrayList]: Function contract at [L11]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-11 20:51:14,355 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:51:14,499 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/lcm2_unwindbound20.c[537,550] [2024-09-11 20:51:14,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:51:14,525 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-11 20:51:14,563 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/lcm2_unwindbound20.c[537,550] Start Parsing Local [2024-09-11 20:51:14,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:51:14,593 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:51:14,594 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:51:14 WrapperNode [2024-09-11 20:51:14,594 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:51:14,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:51:14,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:51:14,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:51:14,607 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:51:14" (1/1) ... [2024-09-11 20:51:14,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:51:14" (1/1) ... [2024-09-11 20:51:14,613 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:51:14" (1/1) ... [2024-09-11 20:51:14,627 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-11 20:51:14,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:51:14" (1/1) ... [2024-09-11 20:51:14,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:51:14" (1/1) ... [2024-09-11 20:51:14,633 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:51:14" (1/1) ... [2024-09-11 20:51:14,636 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:51:14" (1/1) ... [2024-09-11 20:51:14,637 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:51:14" (1/1) ... [2024-09-11 20:51:14,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:51:14" (1/1) ... [2024-09-11 20:51:14,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:51:14,646 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:51:14,646 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:51:14,646 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:51:14,647 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:51:14" (1/1) ... [2024-09-11 20:51:14,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:51:14,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:51:14,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-11 20:51:14,674 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-11 20:51:14,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:51:14,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:51:14,713 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:51:14,713 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:51:14,713 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-11 20:51:14,713 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:51:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:51:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:51:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:51:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:51:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-11 20:51:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:51:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:51:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:51:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:51:14,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-11 20:51:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:51:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-11 20:51:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-11 20:51:14,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:51:14,787 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:51:14,789 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:51:15,004 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-11 20:51:15,045 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-09-11 20:51:15,046 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:51:15,072 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:51:15,073 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-11 20:51:15,074 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:51:15 BoogieIcfgContainer [2024-09-11 20:51:15,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:51:15,075 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:51:15,076 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:51:15,077 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:51:15,077 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:51:14" (1/4) ... [2024-09-11 20:51:15,077 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@252708c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:51:15, skipping insertion in model container [2024-09-11 20:51:15,078 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:51:14" (2/4) ... [2024-09-11 20:51:15,078 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@252708c1 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:51:15, skipping insertion in model container [2024-09-11 20:51:15,078 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:51:14" (3/4) ... [2024-09-11 20:51:15,078 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@252708c1 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:51:15, skipping insertion in model container [2024-09-11 20:51:15,078 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:51:15" (4/4) ... [2024-09-11 20:51:15,079 INFO L79 RefereeObserver]: Analyzing ICFG lcm2_unwindbound20.c [2024-09-11 20:51:15,087 INFO L112 InvariantChecker]: Found 1 loops. [2024-09-11 20:51:15,088 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-11 20:51:15,088 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-11 20:51:15,088 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-11 20:51:15,088 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-11 20:51:15,088 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-11 20:51:15,089 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-11 20:51:15,089 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head, 2 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from loop head to loop head [2024-09-11 20:51:15,137 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-11 20:51:15,138 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:51:15,138 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:51:15,139 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:51:15,142 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:51:15,143 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:15,214 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-11 20:51:15,219 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:15,219 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:51:15,219 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:51:15,220 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:51:15,232 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:51:19,256 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-11 20:51:19,274 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:51:19,274 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:51:19,275 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:51:19,275 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:51:19,275 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:51:19,275 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:19,284 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:51:19,284 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:19,284 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:51:19,284 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:51:19,285 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:51:19,285 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:51:23,291 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-11 20:51:23,310 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:51:23,310 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:51:23,311 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:51:23,311 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:51:23,311 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:51:23,311 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:23,316 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:51:23,316 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:23,316 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:51:23,317 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:51:23,317 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:51:23,318 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:51:23,324 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:51:23,335 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:51:23,335 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:51:23,336 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:51:23,336 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:51:23,336 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:51:23,336 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:23,338 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:51:23,338 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:23,338 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:51:23,338 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:51:23,338 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:51:23,338 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:51:23,340 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:51:23,350 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-11 20:51:23,350 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:51:23,351 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:51:23,351 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:51:23,351 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:51:23,351 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:23,358 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-11 20:51:23,359 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:23,359 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:51:23,359 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:51:23,359 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:51:23,359 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:51:23,361 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:51:23,372 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-11 20:51:23,372 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:51:23,372 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:51:23,372 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:51:23,373 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:51:23,373 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:23,412 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-11 20:51:23,413 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:23,413 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:51:23,414 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:51:23,414 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:51:23,423 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:51:27,428 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-11 20:51:27,434 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness [2024-09-11 20:51:27,434 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@252708c1 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:51:27, skipping insertion in model container [2024-09-11 20:51:27,434 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:51:27,436 INFO L158 Benchmark]: Toolchain (without parser) took 13115.65ms. Allocated memory is still 165.7MB. Free memory was 132.5MB in the beginning and 84.9MB in the end (delta: 47.6MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2024-09-11 20:51:27,436 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 165.7MB. Free memory was 131.1MB in the beginning and 131.1MB in the end (delta: 15.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:51:27,436 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 165.7MB. Free memory is still 134.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:51:27,437 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.74ms. Allocated memory is still 165.7MB. Free memory was 132.5MB in the beginning and 118.6MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:51:27,437 INFO L158 Benchmark]: Boogie Preprocessor took 50.35ms. Allocated memory is still 165.7MB. Free memory was 118.6MB in the beginning and 117.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:51:27,438 INFO L158 Benchmark]: RCFGBuilder took 428.54ms. Allocated memory is still 165.7MB. Free memory was 116.5MB in the beginning and 126.8MB in the end (delta: -10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-11 20:51:27,438 INFO L158 Benchmark]: Referee took 12359.48ms. Allocated memory is still 165.7MB. Free memory was 126.8MB in the beginning and 84.9MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-09-11 20:51:27,441 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 36 to loop head at line 36. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 36 to check that procedure precondition always holds at line 36. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 36 to check that procedure precondition always holds at line 37. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 36. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 13. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 165.7MB. Free memory was 131.1MB in the beginning and 131.1MB in the end (delta: 15.1kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.11ms. Allocated memory is still 165.7MB. Free memory is still 134.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.74ms. Allocated memory is still 165.7MB. Free memory was 132.5MB in the beginning and 118.6MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.35ms. Allocated memory is still 165.7MB. Free memory was 118.6MB in the beginning and 117.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 428.54ms. Allocated memory is still 165.7MB. Free memory was 116.5MB in the beginning and 126.8MB in the end (delta: -10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 12359.48ms. Allocated memory is still 165.7MB. Free memory was 126.8MB in the beginning and 84.9MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:51:27,467 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/lcm2_unwindbound20.c ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound20.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-a9b967e-m [2024-09-11 20:51:29,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:51:29,721 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-11 20:51:29,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:51:29,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:51:29,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:51:29,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:51:29,754 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:51:29,755 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:51:29,755 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:51:29,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:51:29,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:51:29,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:51:29,757 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:51:29,761 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:51:29,761 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:51:29,761 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:51:29,762 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:51:29,762 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:51:29,762 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:51:29,762 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:51:29,763 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:51:29,763 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:51:29,763 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-11 20:51:29,764 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-11 20:51:29,764 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:51:29,764 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-11 20:51:29,764 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:51:29,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:51:29,765 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:51:29,765 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:51:29,765 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:51:29,766 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:51:29,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:51:29,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:51:29,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:51:29,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:51:29,771 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:51:29,771 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-11 20:51:29,771 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-11 20:51:29,771 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:51:29,775 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:51:29,775 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:51:29,775 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:51:29,775 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-11 20:51:29,775 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:51:30,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:51:30,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:51:30,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:51:30,094 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:51:30,095 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:51:30,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound20.yml/witness-2.1.yml [2024-09-11 20:51:30,142 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:51:30,143 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:51:30,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2024-09-11 20:51:31,746 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:51:31,939 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:51:31,939 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2024-09-11 20:51:31,948 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/46a216714/5a81bfad440345e59cd08b63d2705da1/FLAG2bc44ffbd [2024-09-11 20:51:31,966 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/46a216714/5a81bfad440345e59cd08b63d2705da1 [2024-09-11 20:51:31,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:51:31,968 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:51:31,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:51:31,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:51:31,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:51:31,976 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:51:30" (1/2) ... [2024-09-11 20:51:31,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23b9c30a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:51:31, skipping insertion in model container [2024-09-11 20:51:31,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:51:30" (1/2) ... [2024-09-11 20:51:31,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@499c1aa0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:51:31, skipping insertion in model container [2024-09-11 20:51:31,980 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:51:31" (2/2) ... [2024-09-11 20:51:31,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23b9c30a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:51:31, skipping insertion in model container [2024-09-11 20:51:31,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:51:31" (2/2) ... [2024-09-11 20:51:31,991 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:51:31,992 INFO L1541 ArrayList]: Loop invariant at [L36-L49] (((((unsigned long long) a * b) % 2147483648) * 2) == ((((unsigned long long) v * y) + ((unsigned long long) u * x)) % 4294967296)) [2024-09-11 20:51:31,992 INFO L1541 ArrayList]: Function contract at [L11]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-11 20:51:32,011 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:51:32,207 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/lcm2_unwindbound20.c[537,550] [2024-09-11 20:51:32,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:51:32,246 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-11 20:51:32,283 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/lcm2_unwindbound20.c[537,550] Start Parsing Local [2024-09-11 20:51:32,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:51:32,317 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:51:32,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:51:32 WrapperNode [2024-09-11 20:51:32,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:51:32,318 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:51:32,318 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:51:32,319 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:51:32,332 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:51:32" (1/1) ... [2024-09-11 20:51:32,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:51:32" (1/1) ... [2024-09-11 20:51:32,340 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:51:32" (1/1) ... [2024-09-11 20:51:32,353 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-11 20:51:32,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:51:32" (1/1) ... [2024-09-11 20:51:32,353 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:51:32" (1/1) ... [2024-09-11 20:51:32,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:51:32" (1/1) ... [2024-09-11 20:51:32,367 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:51:32" (1/1) ... [2024-09-11 20:51:32,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:51:32" (1/1) ... [2024-09-11 20:51:32,370 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:51:32" (1/1) ... [2024-09-11 20:51:32,372 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:51:32,373 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:51:32,373 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:51:32,373 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:51:32,374 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:51:32" (1/1) ... [2024-09-11 20:51:32,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:51:32,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:51:32,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-11 20:51:32,405 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-11 20:51:32,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:51:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:51:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:51:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:51:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-11 20:51:32,447 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:51:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:51:32,447 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:51:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:51:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:51:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-11 20:51:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:51:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:51:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:51:32,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:51:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-11 20:51:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:51:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-11 20:51:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-11 20:51:32,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:51:32,531 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:51:32,533 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:51:32,967 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-11 20:51:33,023 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-09-11 20:51:33,024 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:51:33,061 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:51:33,064 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-11 20:51:33,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:51:33 BoogieIcfgContainer [2024-09-11 20:51:33,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:51:33,065 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:51:33,065 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:51:33,066 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:51:33,066 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:51:30" (1/4) ... [2024-09-11 20:51:33,066 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@31f8f353 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:51:33, skipping insertion in model container [2024-09-11 20:51:33,066 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:51:31" (2/4) ... [2024-09-11 20:51:33,067 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@31f8f353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:51:33, skipping insertion in model container [2024-09-11 20:51:33,067 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:51:32" (3/4) ... [2024-09-11 20:51:33,067 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@31f8f353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:51:33, skipping insertion in model container [2024-09-11 20:51:33,067 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:51:33" (4/4) ... [2024-09-11 20:51:33,068 INFO L79 RefereeObserver]: Analyzing ICFG lcm2_unwindbound20.c [2024-09-11 20:51:33,071 INFO L112 InvariantChecker]: Found 1 loops. [2024-09-11 20:51:33,074 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-11 20:51:33,074 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-11 20:51:33,074 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-11 20:51:33,074 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-11 20:51:33,074 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-11 20:51:33,074 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-11 20:51:33,075 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from loop head to loop head, 2 loop-free subgraphs from procedure entry to error location, 2 loop-free subgraphs from loop head to error location [2024-09-11 20:51:33,135 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-11 20:51:33,136 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:51:33,137 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:51:33,137 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:51:33,138 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:51:33,140 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:33,168 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-11 20:51:33,169 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:33,169 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:51:33,170 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:51:33,170 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:51:33,181 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:51:37,231 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-11 20:51:37,254 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:51:37,254 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:51:37,255 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:51:37,255 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:51:37,255 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:51:37,257 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:37,277 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:51:37,278 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:37,278 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:51:37,278 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:51:37,278 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:51:37,278 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:51:37,334 INFO L514 InvariantChecker]: The annotation(s) from loop head L42-2 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:51:37,365 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:51:37,369 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:51:37,369 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:51:37,370 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:51:37,370 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:51:37,370 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:37,378 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:51:37,379 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:37,379 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:51:37,379 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:51:37,379 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:51:37,380 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:51:37,397 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:51:37,419 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:51:37,423 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:51:37,423 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:51:37,424 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:51:37,424 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:51:37,424 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:37,426 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:51:37,426 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:37,426 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:51:37,430 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:51:37,431 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:51:37,431 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:51:37,432 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:51:37,449 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-11 20:51:37,449 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:51:37,449 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:51:37,449 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:51:37,450 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:51:37,450 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:37,457 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-11 20:51:37,457 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:37,457 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:51:37,457 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:51:37,457 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:51:37,458 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:51:37,489 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:51:37,510 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-11 20:51:37,514 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:51:37,514 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:51:37,514 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:51:37,515 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:51:37,515 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:37,548 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-11 20:51:37,549 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:51:37,549 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:51:37,549 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:51:37,549 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:51:37,560 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:51:37,565 INFO L514 InvariantChecker]: The annotation(s) from loop head L42-2 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:51:37,569 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness [2024-09-11 20:51:37,569 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@31f8f353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:51:37, skipping insertion in model container [2024-09-11 20:51:37,570 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:51:37,571 INFO L158 Benchmark]: Toolchain (without parser) took 5602.77ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 35.0MB in the beginning and 64.8MB in the end (delta: -29.8MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-09-11 20:51:37,572 INFO L158 Benchmark]: Witness Parser took 0.96ms. Allocated memory is still 48.2MB. Free memory was 29.2MB in the beginning and 29.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:51:37,572 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 48.2MB. Free memory is still 27.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:51:37,573 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.65ms. Allocated memory is still 67.1MB. Free memory was 34.8MB in the beginning and 38.6MB in the end (delta: -3.8MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2024-09-11 20:51:37,573 INFO L158 Benchmark]: Boogie Preprocessor took 54.10ms. Allocated memory is still 67.1MB. Free memory was 38.6MB in the beginning and 36.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:51:37,574 INFO L158 Benchmark]: RCFGBuilder took 691.33ms. Allocated memory is still 67.1MB. Free memory was 36.3MB in the beginning and 37.0MB in the end (delta: -718.8kB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2024-09-11 20:51:37,574 INFO L158 Benchmark]: Referee took 4504.79ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 37.0MB in the beginning and 64.8MB in the end (delta: -27.8MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2024-09-11 20:51:37,577 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 36 to check that procedure precondition always holds at line 36. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 13. 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 36 to check that procedure precondition always holds at line 37. Annotation is valid for all loop-free paths from loop head at line 36 to loop head at line 36. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 36. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.96ms. Allocated memory is still 48.2MB. Free memory was 29.2MB in the beginning and 29.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 48.2MB. Free memory is still 27.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.65ms. Allocated memory is still 67.1MB. Free memory was 34.8MB in the beginning and 38.6MB in the end (delta: -3.8MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.10ms. Allocated memory is still 67.1MB. Free memory was 38.6MB in the beginning and 36.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 691.33ms. Allocated memory is still 67.1MB. Free memory was 36.3MB in the beginning and 37.0MB in the end (delta: -718.8kB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * Referee took 4504.79ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 37.0MB in the beginning and 64.8MB in the end (delta: -27.8MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:51:37,612 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 Result: UNKNOWN