./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invariants/eq2.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/eq2.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-invariants/eq2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/eq2.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 13:26:24,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:26:24,298 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:26:24,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:26:24,306 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:26:24,350 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:26:24,351 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:26:24,352 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:26:24,353 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:26:24,356 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:26:24,357 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:26:24,357 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:26:24,358 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:26:24,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:26:24,360 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:26:24,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:26:24,360 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:26:24,361 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:26:24,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:26:24,361 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:26:24,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:26:24,364 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:26:24,365 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:26:24,365 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:26:24,365 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:26:24,365 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:26:24,366 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:26:24,366 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:26:24,366 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:26:24,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:26:24,367 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:26:24,367 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:26:24,368 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:26:24,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:24,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:26:24,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:26:24,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:26:24,370 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:26:24,370 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:26:24,370 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:26:24,370 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:26:24,371 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:26:24,371 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:26:24,371 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:26:24,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:26:24,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:26:24,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:26:24,674 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:26:24,675 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:26:24,677 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/eq2.yml/witness-2.1.yml [2024-09-20 13:26:24,733 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:26:24,733 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:26:24,734 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invariants/eq2.c [2024-09-20 13:26:26,254 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:26:26,433 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:26:26,434 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invariants/eq2.c [2024-09-20 13:26:26,442 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/9c3430c3d/d98d2386356b439bbebc58c73c43ff85/FLAG7af155b95 [2024-09-20 13:26:26,815 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/9c3430c3d/d98d2386356b439bbebc58c73c43ff85 [2024-09-20 13:26:26,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:26:26,817 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:26:26,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:26,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:26:26,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:26:26,824 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 01:26:24" (1/2) ... [2024-09-20 13:26:26,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363dd2c5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:26, skipping insertion in model container [2024-09-20 13:26:26,825 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 01:26:24" (1/2) ... [2024-09-20 13:26:26,826 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@401df120 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:26, skipping insertion in model container [2024-09-20 13:26:26,826 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:26" (2/2) ... [2024-09-20 13:26:26,826 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363dd2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:26, skipping insertion in model container [2024-09-20 13:26:26,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:26" (2/2) ... [2024-09-20 13:26:26,837 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:26:26,838 INFO L1541 ArrayList]: Loop invariant at [L23-L26] ((z <= y) && (z == y)) [2024-09-20 13:26:26,841 INFO L1541 ArrayList]: Function contract at [L12]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-20 13:26:26,856 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:26:26,999 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-invariants/eq2.c[593,606] [2024-09-20 13:26:27,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:27,025 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 13:26:27,061 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-invariants/eq2.c[593,606] Start Parsing Local [2024-09-20 13:26:27,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:27,085 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:26:27,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:27 WrapperNode [2024-09-20 13:26:27,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:27,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:26:27,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:26:27,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:26:27,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:27" (1/1) ... [2024-09-20 13:26:27,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:27" (1/1) ... [2024-09-20 13:26:27,102 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:27" (1/1) ... [2024-09-20 13:26:27,110 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 13:26:27,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:27" (1/1) ... [2024-09-20 13:26:27,111 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:27" (1/1) ... [2024-09-20 13:26:27,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:27" (1/1) ... [2024-09-20 13:26:27,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:27" (1/1) ... [2024-09-20 13:26:27,118 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:27" (1/1) ... [2024-09-20 13:26:27,119 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:27" (1/1) ... [2024-09-20 13:26:27,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:26:27,122 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:26:27,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:26:27,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:26:27,123 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:27" (1/1) ... [2024-09-20 13:26:27,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:27,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:26:27,150 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 13:26:27,157 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 13:26:27,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:26:27,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:26:27,196 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:26:27,196 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:26:27,196 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:26:27,196 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:26:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:26:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:26:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:26:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 13:26:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:26:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:26:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:26:27,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 13:26:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:26:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 13:26:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 13:26:27,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:26:27,259 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:26:27,261 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:26:27,357 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:26:27,378 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:26:27,408 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:26:27,408 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 13:26:27,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:27 BoogieIcfgContainer [2024-09-20 13:26:27,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:26:27,410 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:26:27,410 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:26:27,411 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:26:27,411 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 01:26:24" (1/4) ... [2024-09-20 13:26:27,412 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@15ab72a1 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:26:27, skipping insertion in model container [2024-09-20 13:26:27,413 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:26:26" (2/4) ... [2024-09-20 13:26:27,413 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@15ab72a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:26:27, skipping insertion in model container [2024-09-20 13:26:27,413 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:27" (3/4) ... [2024-09-20 13:26:27,413 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@15ab72a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:26:27, skipping insertion in model container [2024-09-20 13:26:27,413 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:27" (4/4) ... [2024-09-20 13:26:27,415 INFO L79 RefereeObserver]: Analyzing ICFG eq2.c [2024-09-20 13:26:27,418 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 13:26:27,419 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-4 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:26:27,419 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-20 13:26:27,419 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 4 edges. [2024-09-20 13:26:27,419 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 13:26:27,419 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 13:26:27,419 INFO L131 InvariantChecker]: Will check 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, 1 loop-free subgraphs from loop head to loop head [2024-09-20 13:26:27,456 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:26:27,457 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:27,458 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:27,458 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:27,459 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:27,461 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:27,489 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:26:27,490 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:27,491 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:27,507 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:27,509 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:27,519 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:27,553 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-4 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:26:27,573 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 13:26:27,573 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:27,573 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:27,574 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:27,574 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:27,574 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:27,577 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 13:26:27,577 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:27,577 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:27,578 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:27,578 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:27,578 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:27,586 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:26:27,595 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 13:26:27,595 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:27,596 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:27,596 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:27,596 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:27,596 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:27,611 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 13:26:27,612 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:27,612 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:27,612 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:27,614 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:27,614 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:27,622 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:26:27,635 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:26:27,635 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:27,635 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:27,635 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:27,636 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:27,636 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:27,646 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:26:27,646 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:27,646 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:27,647 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:27,649 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:27,650 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:27,656 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:26:27,667 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:26:27,671 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:27,671 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:27,672 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:27,672 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:27,672 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:27,674 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:26:27,674 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:27,674 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:27,674 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:27,674 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:27,675 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:27,680 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:26:27,684 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-20 13:26:27,684 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@15ab72a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:26:27, skipping insertion in model container [2024-09-20 13:26:27,684 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:26:27,686 INFO L158 Benchmark]: Toolchain (without parser) took 868.41ms. Allocated memory is still 176.2MB. Free memory was 119.8MB in the beginning and 135.9MB in the end (delta: -16.0MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2024-09-20 13:26:27,686 INFO L158 Benchmark]: Witness Parser took 0.27ms. Allocated memory is still 176.2MB. Free memory is still 137.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:27,687 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 176.2MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:27,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.67ms. Allocated memory is still 176.2MB. Free memory was 119.4MB in the beginning and 106.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:26:27,688 INFO L158 Benchmark]: Boogie Preprocessor took 34.92ms. Allocated memory is still 176.2MB. Free memory was 106.4MB in the beginning and 104.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:26:27,689 INFO L158 Benchmark]: RCFGBuilder took 286.49ms. Allocated memory is still 176.2MB. Free memory was 104.3MB in the beginning and 92.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-20 13:26:27,690 INFO L158 Benchmark]: Referee took 274.46ms. Allocated memory is still 176.2MB. Free memory was 92.6MB in the beginning and 135.9MB in the end (delta: -43.3MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2024-09-20 13:26:27,693 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 entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 14. 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. 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. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.27ms. Allocated memory is still 176.2MB. Free memory is still 137.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.68ms. Allocated memory is still 176.2MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.67ms. Allocated memory is still 176.2MB. Free memory was 119.4MB in the beginning and 106.4MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.92ms. Allocated memory is still 176.2MB. Free memory was 106.4MB in the beginning and 104.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 286.49ms. Allocated memory is still 176.2MB. Free memory was 104.3MB in the beginning and 92.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 274.46ms. Allocated memory is still 176.2MB. Free memory was 92.6MB in the beginning and 135.9MB in the end (delta: -43.3MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-20 13:26:27,717 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