./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/phases_2-2.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/phases_2-2.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f1d7dc9d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-acceleration/phases_2-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/phases_2-2.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:25:17,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:25:17,366 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:25:17,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:25:17,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:25:17,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:25:17,407 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:25:17,408 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:25:17,408 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:25:17,409 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:25:17,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:25:17,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:25:17,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:25:17,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:25:17,411 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:25:17,412 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:25:17,412 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:25:17,413 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:25:17,413 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:25:17,413 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:25:17,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:25:17,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:25:17,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:25:17,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:25:17,415 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:25:17,415 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:25:17,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:25:17,416 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:25:17,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:25:17,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:25:17,417 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:25:17,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:25:17,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:25:17,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:17,418 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:25:17,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:25:17,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:25:17,419 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:25:17,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:25:17,420 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:25:17,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:25:17,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:25:17,421 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:25:17,421 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:25:17,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:25:17,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:25:17,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:25:17,710 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:25:17,710 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:25:17,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-20 13:25:19,155 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:25:19,324 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:25:19,325 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-20 13:25:19,336 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/a2005dd34/c12178e1f0214f9ca9c52d8e3138b90f/FLAG81982000e [2024-09-20 13:25:19,355 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/a2005dd34/c12178e1f0214f9ca9c52d8e3138b90f [2024-09-20 13:25:19,358 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:25:19,359 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:25:19,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/phases_2-2.yml/witness-2.1.yml [2024-09-20 13:25:19,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:25:19,435 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:25:19,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:19,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:25:19,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:25:19,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:19" (1/2) ... [2024-09-20 13:25:19,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1160dd92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19, skipping insertion in model container [2024-09-20 13:25:19,445 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:19" (1/2) ... [2024-09-20 13:25:19,447 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3ceea85f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19, skipping insertion in model container [2024-09-20 13:25:19,448 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:19" (2/2) ... [2024-09-20 13:25:19,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1160dd92 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:19, skipping insertion in model container [2024-09-20 13:25:19,449 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:19" (2/2) ... [2024-09-20 13:25:19,455 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:25:19,457 INFO L1541 ArrayList]: Loop invariant at [L23-L29] ((x == 1) && (1 <= y)) [2024-09-20 13:25:19,457 INFO L1541 ArrayList]: Function contract at [L10]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-20 13:25:19,485 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:25:19,657 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/phases_2-2.c[459,472] [2024-09-20 13:25:19,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:19,688 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 13:25:19,725 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/phases_2-2.c[459,472] Start Parsing Local [2024-09-20 13:25:19,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:19,745 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:25:19,746 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:19 WrapperNode [2024-09-20 13:25:19,746 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:19,747 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:25:19,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:25:19,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:25:19,759 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,764 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,772 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-20 13:25:19,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,776 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,779 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,783 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,784 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,785 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,786 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:25:19,787 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:25:19,787 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:25:19,788 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:25:19,788 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:19,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:25:19,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-20 13:25:19,821 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-20 13:25:19,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:25:19,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:25:19,859 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:25:19,860 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:25:19,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:25:19,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:25:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:25:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:25:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:25:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:25:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:25:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 13:25:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:25:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:25:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:25:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 13:25:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:25:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 13:25:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 13:25:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:25:19,922 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:25:19,924 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:25:20,046 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:25:20,061 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:25:20,089 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:25:20,090 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 13:25:20,090 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:20 BoogieIcfgContainer [2024-09-20 13:25:20,091 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:25:20,091 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:25:20,092 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:25:20,092 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:25:20,093 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:25:19" (1/4) ... [2024-09-20 13:25:20,093 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1a88b8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:25:20, skipping insertion in model container [2024-09-20 13:25:20,093 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:19" (2/4) ... [2024-09-20 13:25:20,095 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1a88b8d0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:25:20, skipping insertion in model container [2024-09-20 13:25:20,095 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:19" (3/4) ... [2024-09-20 13:25:20,095 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1a88b8d0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:25:20, skipping insertion in model container [2024-09-20 13:25:20,095 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:20" (4/4) ... [2024-09-20 13:25:20,096 INFO L79 RefereeObserver]: Analyzing ICFG phases_2-2.c [2024-09-20 13:25:20,100 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 13:25:20,101 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:25:20,102 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-20 13:25:20,102 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 13:25:20,103 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:25:20,103 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 13:25:20,103 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from loop head to loop head [2024-09-20 13:25:20,148 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 13:25:20,149 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:20,150 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:20,150 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:20,151 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:20,153 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:20,171 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 13:25:20,172 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:20,172 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:20,172 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:20,173 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:20,179 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:20,200 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:25:20,216 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:25:20,217 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:20,217 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:20,217 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:20,217 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:20,218 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:20,221 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:25:20,221 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:20,221 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:20,221 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:20,222 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:20,222 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:20,227 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:25:20,238 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:25:20,242 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:20,242 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:20,243 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:20,245 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:20,246 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:20,260 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:25:20,261 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:20,261 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:20,261 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:20,261 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:20,265 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:24,269 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:25:24,289 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:25:24,289 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:24,289 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:24,290 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:24,290 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:24,290 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:24,293 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:25:24,294 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:24,294 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:24,294 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:24,294 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:24,295 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:24,303 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:25:24,316 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:25:24,317 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:24,317 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:24,317 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:24,317 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:24,318 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:24,322 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:25:24,322 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:24,322 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:24,323 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:24,323 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:24,323 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:24,327 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:25:24,330 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-20 13:25:24,331 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1a88b8d0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:25:24, skipping insertion in model container [2024-09-20 13:25:24,331 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:25:24,333 INFO L158 Benchmark]: Toolchain (without parser) took 4897.47ms. Allocated memory is still 176.2MB. Free memory was 146.0MB in the beginning and 108.7MB in the end (delta: 37.3MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2024-09-20 13:25:24,333 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 134.2MB. Free memory was 102.0MB in the beginning and 101.9MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:24,334 INFO L158 Benchmark]: Witness Parser took 1.14ms. Allocated memory is still 134.2MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:24,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.87ms. Allocated memory is still 176.2MB. Free memory was 145.9MB in the beginning and 138.1MB in the end (delta: 7.8MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-09-20 13:25:24,335 INFO L158 Benchmark]: Boogie Preprocessor took 39.72ms. Allocated memory is still 176.2MB. Free memory was 138.1MB in the beginning and 136.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:25:24,335 INFO L158 Benchmark]: RCFGBuilder took 303.61ms. Allocated memory is still 176.2MB. Free memory was 136.8MB in the beginning and 124.3MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:25:24,336 INFO L158 Benchmark]: Referee took 4239.73ms. Allocated memory is still 176.2MB. Free memory was 124.3MB in the beginning and 108.7MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:25:24,339 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 23 to loop head at line 23. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 23. Annotation is valid for all loop-free paths from loop head at line 23 to check that procedure precondition always holds at line 23. 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 __VERIFIER_assert to check that a call to reach_error is unreachable at line 12. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 134.2MB. Free memory was 102.0MB in the beginning and 101.9MB in the end (delta: 140.0kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 1.14ms. Allocated memory is still 134.2MB. Free memory is still 63.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.87ms. Allocated memory is still 176.2MB. Free memory was 145.9MB in the beginning and 138.1MB in the end (delta: 7.8MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.72ms. Allocated memory is still 176.2MB. Free memory was 138.1MB in the beginning and 136.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 303.61ms. Allocated memory is still 176.2MB. Free memory was 136.8MB in the beginning and 124.3MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 4239.73ms. Allocated memory is still 176.2MB. Free memory was 124.3MB in the beginning and 108.7MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:25:24,359 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/loop-acceleration/phases_2-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/phases_2-2.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:25:26,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:25:26,530 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 13:25:26,537 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:25:26,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:25:26,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:25:26,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:25:26,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:25:26,574 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:25:26,574 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:25:26,576 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:25:26,576 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:25:26,577 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:25:26,577 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:25:26,577 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:25:26,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:25:26,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:25:26,582 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:25:26,582 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:25:26,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:25:26,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:25:26,583 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:25:26,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:25:26,584 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 13:25:26,586 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 13:25:26,587 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:25:26,587 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 13:25:26,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:25:26,587 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:25:26,588 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:25:26,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:25:26,588 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:25:26,589 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:25:26,589 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:25:26,590 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:25:26,590 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:26,590 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:25:26,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:25:26,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:25:26,592 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 13:25:26,592 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 13:25:26,592 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:25:26,592 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:25:26,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:25:26,593 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:25:26,593 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 13:25:26,593 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:25:26,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:25:26,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:25:26,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:25:26,918 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:25:26,919 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:25:26,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/phases_2-2.yml/witness-2.1.yml [2024-09-20 13:25:26,980 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:25:26,980 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:25:26,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-20 13:25:28,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:25:28,761 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:25:28,762 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-20 13:25:28,771 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/f17bda575/e84b6ab4ffc5440c92366ae188350bfe/FLAG8ff30405a [2024-09-20 13:25:29,109 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/f17bda575/e84b6ab4ffc5440c92366ae188350bfe [2024-09-20 13:25:29,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:25:29,112 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:25:29,113 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:29,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:25:29,120 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:25:29,121 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:26" (1/2) ... [2024-09-20 13:25:29,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e3d03f6 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:29, skipping insertion in model container [2024-09-20 13:25:29,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:26" (1/2) ... [2024-09-20 13:25:29,126 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3862db94 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:29, skipping insertion in model container [2024-09-20 13:25:29,126 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:29" (2/2) ... [2024-09-20 13:25:29,126 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e3d03f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:29, skipping insertion in model container [2024-09-20 13:25:29,126 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:29" (2/2) ... [2024-09-20 13:25:29,136 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:25:29,137 INFO L1541 ArrayList]: Loop invariant at [L23-L29] ((x == 1) && (1 <= y)) [2024-09-20 13:25:29,137 INFO L1541 ArrayList]: Function contract at [L10]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-20 13:25:29,156 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:25:29,349 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/phases_2-2.c[459,472] [2024-09-20 13:25:29,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:29,374 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 13:25:29,413 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/phases_2-2.c[459,472] Start Parsing Local [2024-09-20 13:25:29,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:29,436 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:25:29,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:29 WrapperNode [2024-09-20 13:25:29,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:29,438 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:25:29,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:25:29,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:25:29,450 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:29" (1/1) ... [2024-09-20 13:25:29,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:29" (1/1) ... [2024-09-20 13:25:29,458 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:29" (1/1) ... [2024-09-20 13:25:29,467 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-20 13:25:29,467 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:29" (1/1) ... [2024-09-20 13:25:29,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:29" (1/1) ... [2024-09-20 13:25:29,476 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:29" (1/1) ... [2024-09-20 13:25:29,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:29" (1/1) ... [2024-09-20 13:25:29,483 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:29" (1/1) ... [2024-09-20 13:25:29,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:29" (1/1) ... [2024-09-20 13:25:29,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:25:29,491 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:25:29,491 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:25:29,491 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:25:29,492 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:29" (1/1) ... [2024-09-20 13:25:29,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:29,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:25:29,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-20 13:25:29,525 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-20 13:25:29,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:25:29,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:25:29,576 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:25:29,576 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:25:29,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:25:29,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:25:29,576 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:25:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:25:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:25:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:25:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:25:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 13:25:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:25:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:25:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:25:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-20 13:25:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:25:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-20 13:25:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-20 13:25:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:25:29,643 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:25:29,647 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:25:29,836 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:25:29,850 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:25:29,888 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:25:29,889 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 13:25:29,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:29 BoogieIcfgContainer [2024-09-20 13:25:29,889 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:25:29,890 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:25:29,890 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:25:29,891 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:25:29,891 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:26" (1/4) ... [2024-09-20 13:25:29,891 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1f9ebad5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:25:29, skipping insertion in model container [2024-09-20 13:25:29,891 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:25:29" (2/4) ... [2024-09-20 13:25:29,892 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1f9ebad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:25:29, skipping insertion in model container [2024-09-20 13:25:29,892 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:29" (3/4) ... [2024-09-20 13:25:29,892 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1f9ebad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:25:29, skipping insertion in model container [2024-09-20 13:25:29,892 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:29" (4/4) ... [2024-09-20 13:25:29,894 INFO L79 RefereeObserver]: Analyzing ICFG phases_2-2.c [2024-09-20 13:25:29,899 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 13:25:29,900 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:25:29,901 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-20 13:25:29,901 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 13:25:29,901 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:25:29,901 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 13:25:29,901 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to error location, 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head [2024-09-20 13:25:29,952 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 13:25:29,956 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:29,957 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:29,958 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:29,959 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:29,962 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:29,980 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 13:25:29,981 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:29,982 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:29,982 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:29,982 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:29,989 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:30,012 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:25:30,034 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:25:30,038 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:30,038 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:30,038 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:30,039 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:30,039 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:30,041 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:25:30,051 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:30,051 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:30,051 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:30,051 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:30,052 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:30,058 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:25:30,075 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:25:30,075 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:30,075 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:30,075 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:30,075 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:30,075 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:30,089 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:25:30,090 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:30,090 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:30,091 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:30,091 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:30,094 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:30,114 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:25:30,131 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:25:30,133 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:30,134 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:30,134 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:30,134 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:30,134 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:30,140 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:25:30,144 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:30,144 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:30,144 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:30,144 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:30,145 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:30,146 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:25:30,156 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:25:30,159 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:30,159 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:30,160 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:30,160 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:30,160 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:30,164 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:25:30,165 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:30,165 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:30,165 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:30,165 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:30,165 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:30,169 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:25:30,172 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-20 13:25:30,173 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1f9ebad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:25:30, skipping insertion in model container [2024-09-20 13:25:30,173 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:25:30,175 INFO L158 Benchmark]: Toolchain (without parser) took 1062.72ms. Allocated memory is still 75.5MB. Free memory was 41.3MB in the beginning and 45.3MB in the end (delta: -4.0MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2024-09-20 13:25:30,176 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 35.2MB in the beginning and 35.1MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:30,177 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 56.6MB. Free memory was 33.1MB in the beginning and 33.1MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:30,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.03ms. Allocated memory is still 75.5MB. Free memory was 41.0MB in the beginning and 49.9MB in the end (delta: -8.8MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2024-09-20 13:25:30,179 INFO L158 Benchmark]: Boogie Preprocessor took 51.99ms. Allocated memory is still 75.5MB. Free memory was 49.9MB in the beginning and 47.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:25:30,179 INFO L158 Benchmark]: RCFGBuilder took 398.78ms. Allocated memory is still 75.5MB. Free memory was 47.5MB in the beginning and 35.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:25:30,180 INFO L158 Benchmark]: Referee took 283.18ms. Allocated memory is still 75.5MB. Free memory was 35.2MB in the beginning and 45.3MB in the end (delta: -10.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2024-09-20 13:25:30,182 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness. Annotation is a valid proof of correctness. Annotation is valid for all loop-free paths from loop head at line 23 to loop head at line 23. 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 12. Annotation is valid for all loop-free paths from loop head at line 23 to check that procedure precondition always holds at line 23. 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 23. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 35.2MB in the beginning and 35.1MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.09ms. Allocated memory is still 56.6MB. Free memory was 33.1MB in the beginning and 33.1MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.03ms. Allocated memory is still 75.5MB. Free memory was 41.0MB in the beginning and 49.9MB in the end (delta: -8.8MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.99ms. Allocated memory is still 75.5MB. Free memory was 49.9MB in the beginning and 47.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 398.78ms. Allocated memory is still 75.5MB. Free memory was 47.5MB in the beginning and 35.2MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 283.18ms. Allocated memory is still 75.5MB. Free memory was 35.2MB in the beginning and 45.3MB in the end (delta: -10.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-20 13:25:30,216 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: TRUE