./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 fb1cb0b9 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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-fb1cb0b-m [2024-09-25 11:45:30,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:45:30,431 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 11:45:30,438 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:45:30,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:45:30,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:45:30,483 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:45:30,483 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:45:30,484 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:45:30,485 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:45:30,486 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:45:30,486 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:45:30,487 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:45:30,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:45:30,490 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:45:30,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:45:30,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:45:30,490 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:45:30,491 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 11:45:30,491 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:45:30,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:45:30,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:45:30,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:45:30,492 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:45:30,492 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:45:30,492 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:45:30,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:45:30,493 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:45:30,493 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:45:30,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:45:30,493 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:45:30,493 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:45:30,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:45:30,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:45:30,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:45:30,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:45:30,496 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:45:30,496 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 11:45:30,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 11:45:30,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:45:30,497 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:45:30,497 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:45:30,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:45:30,498 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:45:30,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:45:30,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:45:30,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:45:30,817 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:45:30,818 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:45:30,819 INFO L431 ainManager$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 [2024-09-25 11:45:30,871 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:45:30,872 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:45:30,872 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-25 11:45:32,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:45:32,486 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:45:32,487 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-25 11:45:32,493 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/7a62b871a/bee077817ed54f26b19a7c088bc7a325/FLAG2b8b01bd6 [2024-09-25 11:45:32,509 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/7a62b871a/bee077817ed54f26b19a7c088bc7a325 [2024-09-25 11:45:32,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:45:32,511 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:45:32,512 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:45:32,513 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:45:32,517 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:45:32,517 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:45:30" (1/2) ... [2024-09-25 11:45:32,518 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb87476 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:45:32, skipping insertion in model container [2024-09-25 11:45:32,518 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:45:30" (1/2) ... [2024-09-25 11:45:32,520 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6ffff54f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:45:32, skipping insertion in model container [2024-09-25 11:45:32,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:45:32" (2/2) ... [2024-09-25 11:45:32,520 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb87476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:32, skipping insertion in model container [2024-09-25 11:45:32,520 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:45:32" (2/2) ... [2024-09-25 11:45:32,528 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:45:32,528 INFO L1541 ArrayList]: Loop invariant at [L23-L29] ((x == 1) && (1 <= y)) [2024-09-25 11:45:32,528 INFO L1541 ArrayList]: Function contract at [L10]: requires (cond != 0), ensures (cond != 0) [2024-09-25 11:45:32,543 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:45:32,682 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] [2024-09-25 11:45:32,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:45:32,704 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-25 11:45:32,743 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 [2024-09-25 11:45:32,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:45:32,768 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:45:32,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:32 WrapperNode [2024-09-25 11:45:32,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:45:32,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:45:32,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:45:32,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:45:32,782 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:32" (1/1) ... [2024-09-25 11:45:32,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:32" (1/1) ... [2024-09-25 11:45:32,788 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:32" (1/1) ... [2024-09-25 11:45:32,795 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 [2024-09-25 11:45:32,796 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:32" (1/1) ... [2024-09-25 11:45:32,796 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:32" (1/1) ... [2024-09-25 11:45:32,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:32" (1/1) ... [2024-09-25 11:45:32,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:32" (1/1) ... [2024-09-25 11:45:32,802 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:32" (1/1) ... [2024-09-25 11:45:32,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:32" (1/1) ... [2024-09-25 11:45:32,805 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:45:32,806 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:45:32,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:45:32,806 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:45:32,807 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:32" (1/1) ... [2024-09-25 11:45:32,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:45:32,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:45:32,830 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) [2024-09-25 11:45:32,831 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 [2024-09-25 11:45:32,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:45:32,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:45:32,864 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:45:32,864 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 11:45:32,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-25 11:45:32,864 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:45:32,864 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:45:32,864 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:45:32,864 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:45:32,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:45:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 11:45:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-25 11:45:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:45:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:45:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:45:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 11:45:32,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:45:32,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 11:45:32,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 11:45:32,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:45:32,925 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:45:32,929 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:45:33,059 WARN L782 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-25 11:45:33,077 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:45:33,098 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:45:33,098 INFO L317 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-25 11:45:33,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:45:33 BoogieIcfgContainer [2024-09-25 11:45:33,098 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:45:33,099 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:45:33,099 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:45:33,100 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:45:33,100 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:45:30" (1/4) ... [2024-09-25 11:45:33,100 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@679c773c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:45:33, skipping insertion in model container [2024-09-25 11:45:33,100 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:45:32" (2/4) ... [2024-09-25 11:45:33,101 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@679c773c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:45:33, skipping insertion in model container [2024-09-25 11:45:33,101 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:32" (3/4) ... [2024-09-25 11:45:33,101 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@679c773c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:45:33, skipping insertion in model container [2024-09-25 11:45:33,101 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:45:33" (4/4) ... [2024-09-25 11:45:33,102 INFO L79 RefereeObserver]: Analyzing ICFG phases_2-2.c [2024-09-25 11:45:33,105 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-25 11:45:33,105 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-25 11:45:33,106 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-25 11:45:33,106 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 11:45:33,106 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-25 11:45:33,106 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-25 11:45:33,106 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to loop head, 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from loop head to loop head [2024-09-25 11:45:33,144 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-25 11:45:33,145 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:33,146 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:33,146 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:33,147 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:33,148 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:33,161 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-25 11:45:33,162 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:33,162 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:33,162 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:33,162 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:33,168 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:45:33,181 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-25 11:45:33,191 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:45:33,192 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:33,192 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:33,192 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:33,192 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:33,192 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:33,196 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:45:33,196 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:33,196 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:33,196 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:33,196 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:33,196 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:45:33,201 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:45:33,214 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 11:45:33,214 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:33,214 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:33,215 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:33,215 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:33,215 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:33,234 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 11:45:33,235 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:33,235 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:33,235 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:33,236 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:33,240 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:45:37,243 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-25 11:45:37,252 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 11:45:37,253 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:37,253 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:37,253 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:37,253 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:37,253 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:37,256 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 11:45:37,257 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:37,257 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:37,257 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:37,257 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:37,258 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:45:37,260 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 11:45:37,272 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:45:37,273 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:37,273 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:37,273 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:37,273 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:37,274 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:37,275 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:45:37,275 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:37,276 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:37,276 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:37,276 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:37,276 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:45:37,278 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-25 11:45:37,281 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-25 11:45:37,281 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@679c773c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 25.09 11:45:37, skipping insertion in model container [2024-09-25 11:45:37,282 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-25 11:45:37,285 INFO L158 Benchmark]: Toolchain (without parser) took 4771.11ms. Allocated memory is still 174.1MB. Free memory was 143.3MB in the beginning and 120.4MB in the end (delta: 22.9MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2024-09-25 11:45:37,285 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 174.1MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:45:37,286 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 174.1MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:45:37,286 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.82ms. Allocated memory is still 174.1MB. Free memory was 143.3MB in the beginning and 129.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:45:37,287 INFO L158 Benchmark]: Boogie Preprocessor took 35.41ms. Allocated memory is still 174.1MB. Free memory was 129.7MB in the beginning and 127.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:45:37,289 INFO L158 Benchmark]: RCFGBuilder took 292.67ms. Allocated memory is still 174.1MB. Free memory was 127.6MB in the beginning and 137.2MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-25 11:45:37,289 INFO L158 Benchmark]: Referee took 4182.68ms. Allocated memory is still 174.1MB. Free memory was 137.2MB in the beginning and 120.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-25 11:45:37,292 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 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 check that a call to reach_error is unreachable at line 12. 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 0.19ms. Allocated memory is still 174.1MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.08ms. Allocated memory is still 174.1MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.82ms. Allocated memory is still 174.1MB. Free memory was 143.3MB in the beginning and 129.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.41ms. Allocated memory is still 174.1MB. Free memory was 129.7MB in the beginning and 127.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 292.67ms. Allocated memory is still 174.1MB. Free memory was 127.6MB in the beginning and 137.2MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 4182.68ms. Allocated memory is still 174.1MB. Free memory was 137.2MB in the beginning and 120.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 11:45:37,319 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/11.0.12-open/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-fb1cb0b-m [2024-09-25 11:45:39,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:45:39,620 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-25 11:45:39,625 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:45:39,625 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:45:39,656 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:45:39,657 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:45:39,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:45:39,658 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:45:39,659 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:45:39,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:45:39,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:45:39,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:45:39,663 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:45:39,663 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:45:39,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:45:39,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:45:39,664 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:45:39,665 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:45:39,665 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:45:39,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:45:39,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:45:39,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:45:39,667 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-25 11:45:39,667 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-25 11:45:39,667 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:45:39,668 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-25 11:45:39,668 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:45:39,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:45:39,669 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:45:39,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:45:39,669 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:45:39,669 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:45:39,670 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:45:39,670 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:45:39,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:45:39,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:45:39,671 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:45:39,671 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:45:39,671 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-25 11:45:39,671 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-25 11:45:39,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:45:39,672 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:45:39,672 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:45:39,673 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:45:39,673 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-25 11:45:39,673 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:45:39,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:45:40,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:45:40,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:45:40,020 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:45:40,022 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:45:40,024 INFO L431 ainManager$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 [2024-09-25 11:45:40,065 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:45:40,066 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:45:40,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-25 11:45:41,636 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:45:41,805 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:45:41,806 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/phases_2-2.c [2024-09-25 11:45:41,811 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/945aeab52/80babdbdc1474995a11b17f96b9da04b/FLAG3c223c001 [2024-09-25 11:45:42,219 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/945aeab52/80babdbdc1474995a11b17f96b9da04b [2024-09-25 11:45:42,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:45:42,221 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:45:42,222 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:45:42,222 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:45:42,227 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:45:42,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:45:40" (1/2) ... [2024-09-25 11:45:42,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56cbc625 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:45:42, skipping insertion in model container [2024-09-25 11:45:42,229 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:45:40" (1/2) ... [2024-09-25 11:45:42,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7e5f2ebd and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:45:42, skipping insertion in model container [2024-09-25 11:45:42,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:45:42" (2/2) ... [2024-09-25 11:45:42,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56cbc625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:42, skipping insertion in model container [2024-09-25 11:45:42,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:45:42" (2/2) ... [2024-09-25 11:45:42,237 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:45:42,240 INFO L1541 ArrayList]: Loop invariant at [L23-L29] ((x == 1) && (1 <= y)) [2024-09-25 11:45:42,241 INFO L1541 ArrayList]: Function contract at [L10]: requires (cond != 0), ensures (cond != 0) [2024-09-25 11:45:42,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:45:42,434 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] [2024-09-25 11:45:42,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:45:42,462 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-25 11:45:42,498 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 [2024-09-25 11:45:42,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:45:42,528 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:45:42,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:42 WrapperNode [2024-09-25 11:45:42,529 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:45:42,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:45:42,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:45:42,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:45:42,542 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:42" (1/1) ... [2024-09-25 11:45:42,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:42" (1/1) ... [2024-09-25 11:45:42,549 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:42" (1/1) ... [2024-09-25 11:45:42,559 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 [2024-09-25 11:45:42,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:42" (1/1) ... [2024-09-25 11:45:42,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:42" (1/1) ... [2024-09-25 11:45:42,566 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:42" (1/1) ... [2024-09-25 11:45:42,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:42" (1/1) ... [2024-09-25 11:45:42,573 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:42" (1/1) ... [2024-09-25 11:45:42,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:42" (1/1) ... [2024-09-25 11:45:42,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:45:42,580 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:45:42,580 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:45:42,581 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:45:42,581 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:42" (1/1) ... [2024-09-25 11:45:42,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:45:42,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:45:42,611 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) [2024-09-25 11:45:42,614 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 [2024-09-25 11:45:42,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:45:42,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:45:42,658 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:45:42,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 11:45:42,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-25 11:45:42,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:45:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:45:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:45:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:45:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:45:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 11:45:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-25 11:45:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:45:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:45:42,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:45:42,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-25 11:45:42,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:45:42,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-25 11:45:42,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-25 11:45:42,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:45:42,740 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:45:42,745 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:45:42,904 WARN L782 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-25 11:45:42,922 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:45:42,965 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:45:42,965 INFO L317 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-25 11:45:42,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:45:42 BoogieIcfgContainer [2024-09-25 11:45:42,966 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:45:42,966 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:45:42,966 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:45:42,967 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:45:42,967 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:45:40" (1/4) ... [2024-09-25 11:45:42,968 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3d79b616 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:45:42, skipping insertion in model container [2024-09-25 11:45:42,968 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:45:42" (2/4) ... [2024-09-25 11:45:42,968 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3d79b616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:45:42, skipping insertion in model container [2024-09-25 11:45:42,968 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:42" (3/4) ... [2024-09-25 11:45:42,969 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3d79b616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:45:42, skipping insertion in model container [2024-09-25 11:45:42,969 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:45:42" (4/4) ... [2024-09-25 11:45:42,970 INFO L79 RefereeObserver]: Analyzing ICFG phases_2-2.c [2024-09-25 11:45:42,973 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-25 11:45:42,974 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-25 11:45:42,974 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-25 11:45:42,974 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 11:45:42,974 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-25 11:45:42,977 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-25 11:45:42,977 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from procedure entry to loop head [2024-09-25 11:45:43,019 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-25 11:45:43,020 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:43,021 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:43,021 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:43,022 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:43,024 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:43,038 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-25 11:45:43,040 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:43,040 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:43,040 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:43,041 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:43,044 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:45:43,064 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-25 11:45:43,081 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:45:43,085 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:43,085 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:43,086 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:43,086 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:43,086 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:43,088 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:45:43,092 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:43,093 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:43,093 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:43,093 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:43,093 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:45:43,102 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:45:43,119 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 11:45:43,121 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:43,121 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:43,121 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:43,121 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:43,121 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:43,135 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 11:45:43,135 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:43,136 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:43,136 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:43,136 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:43,141 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:45:43,163 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:45:43,175 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 11:45:43,175 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:43,176 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:43,176 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:43,176 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:43,176 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:43,180 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 11:45:43,181 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:43,181 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:43,181 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:43,181 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:43,185 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:45:43,187 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 11:45:43,194 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:45:43,194 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:43,194 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:43,195 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:43,195 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:43,195 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:43,197 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:45:43,197 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:43,197 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:43,197 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:43,198 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:43,198 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:45:43,199 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-25 11:45:43,204 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-25 11:45:43,204 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3d79b616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 25.09 11:45:43, skipping insertion in model container [2024-09-25 11:45:43,204 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-25 11:45:43,206 INFO L158 Benchmark]: Toolchain (without parser) took 984.28ms. Allocated memory is still 67.1MB. Free memory was 37.3MB in the beginning and 29.5MB in the end (delta: 7.8MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-09-25 11:45:43,210 INFO L158 Benchmark]: Witness Parser took 0.31ms. Allocated memory is still 50.3MB. Free memory was 29.0MB in the beginning and 28.9MB in the end (delta: 60.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:45:43,211 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 50.3MB. Free memory is still 26.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:45:43,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.23ms. Allocated memory is still 67.1MB. Free memory was 37.1MB in the beginning and 41.8MB in the end (delta: -4.7MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2024-09-25 11:45:43,213 INFO L158 Benchmark]: Boogie Preprocessor took 49.98ms. Allocated memory is still 67.1MB. Free memory was 41.8MB in the beginning and 39.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:45:43,213 INFO L158 Benchmark]: RCFGBuilder took 385.32ms. Allocated memory is still 67.1MB. Free memory was 39.7MB in the beginning and 44.5MB in the end (delta: -4.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:45:43,214 INFO L158 Benchmark]: Referee took 238.19ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 29.5MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:45:43,216 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 check that procedure precondition always holds at line 23. 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 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. 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 0.31ms. Allocated memory is still 50.3MB. Free memory was 29.0MB in the beginning and 28.9MB in the end (delta: 60.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.07ms. Allocated memory is still 50.3MB. Free memory is still 26.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.23ms. Allocated memory is still 67.1MB. Free memory was 37.1MB in the beginning and 41.8MB in the end (delta: -4.7MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.98ms. Allocated memory is still 67.1MB. Free memory was 41.8MB in the beginning and 39.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 385.32ms. Allocated memory is still 67.1MB. Free memory was 39.7MB in the beginning and 44.5MB in the end (delta: -4.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 238.19ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 29.5MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-25 11:45:43,251 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE