./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/cpachecker-verification-files/SV-COMP24_unreach-call/eq2.yml/output/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27b49876 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-invariants/eq2.c ../results/cpachecker-verification-files/SV-COMP24_unreach-call/eq2.yml/output/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-27b4987-m [2024-09-21 19:07:53,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:07:53,178 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 19:07:53,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:07:53,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:07:53,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:07:53,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:07:53,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:07:53,216 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:07:53,216 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:07:53,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:07:53,217 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:07:53,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:07:53,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:07:53,218 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:07:53,220 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:07:53,222 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:07:53,224 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:07:53,224 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 19:07:53,224 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:07:53,225 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:07:53,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:07:53,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:07:53,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:07:53,226 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:07:53,226 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:07:53,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:07:53,227 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:07:53,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:07:53,228 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:07:53,228 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:07:53,228 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:07:53,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:07:53,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:53,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:07:53,230 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:07:53,230 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:07:53,230 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 19:07:53,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 19:07:53,231 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:07:53,231 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:07:53,231 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:07:53,232 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:07:53,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:07:53,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:07:53,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:07:53,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:07:53,512 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:07:53,512 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:07:53,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invariants/eq2.c [2024-09-21 19:07:55,029 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:07:55,216 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:07:55,217 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invariants/eq2.c [2024-09-21 19:07:55,226 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/a013ca4d2/63b4292878c149d7a94a1ab541883635/FLAGd773e3344 [2024-09-21 19:07:55,244 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/a013ca4d2/63b4292878c149d7a94a1ab541883635 [2024-09-21 19:07:55,247 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:07:55,248 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:07:55,250 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/eq2.yml/output/witness-2.1.yml [2024-09-21 19:07:55,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:07:55,308 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:07:55,310 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:55,310 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:07:55,315 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:07:55,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:55" (1/2) ... [2024-09-21 19:07:55,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363c5d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:55, skipping insertion in model container [2024-09-21 19:07:55,318 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:55" (1/2) ... [2024-09-21 19:07:55,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43ada0d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:55, skipping insertion in model container [2024-09-21 19:07:55,321 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:55" (2/2) ... [2024-09-21 19:07:55,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363c5d0b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:55, skipping insertion in model container [2024-09-21 19:07:55,321 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:55" (2/2) ... [2024-09-21 19:07:55,329 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:07:55,329 INFO L1541 ArrayList]: Loop invariant at [L23-L26] ( z == y ) [2024-09-21 19:07:55,329 INFO L1541 ArrayList]: Function contract at [L12]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:07:55,329 INFO L1541 ArrayList]: Function contract at [L18]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:07:55,350 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:07:55,511 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] [2024-09-21 19:07:55,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:55,541 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-21 19:07:55,584 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 Global Start Parsing Global Start Parsing Local [2024-09-21 19:07:55,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:55,643 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:07:55,644 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:55 WrapperNode [2024-09-21 19:07:55,644 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:55,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:07:55,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:07:55,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:07:55,659 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:55" (1/1) ... [2024-09-21 19:07:55,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:55" (1/1) ... [2024-09-21 19:07:55,666 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:55" (1/1) ... [2024-09-21 19:07:55,675 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 [2024-09-21 19:07:55,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:55" (1/1) ... [2024-09-21 19:07:55,676 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:55" (1/1) ... [2024-09-21 19:07:55,679 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:55" (1/1) ... [2024-09-21 19:07:55,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:55" (1/1) ... [2024-09-21 19:07:55,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:55" (1/1) ... [2024-09-21 19:07:55,687 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:55" (1/1) ... [2024-09-21 19:07:55,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:07:55,690 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:07:55,690 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:07:55,690 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:07:55,691 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:55" (1/1) ... [2024-09-21 19:07:55,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:55,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:07:55,719 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) [2024-09-21 19:07:55,725 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 [2024-09-21 19:07:55,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:07:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:07:55,765 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:07:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-21 19:07:55,766 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:07:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:07:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:07:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:07:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:07:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-21 19:07:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:07:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:07:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:07:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-21 19:07:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:07:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-21 19:07:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-21 19:07:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:07:55,825 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:07:55,828 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:07:55,854 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:55,954 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:55,971 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:07:56,009 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:07:56,009 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-21 19:07:56,009 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:56 BoogieIcfgContainer [2024-09-21 19:07:56,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:07:56,010 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:07:56,010 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:07:56,011 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:07:56,011 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:07:55" (1/4) ... [2024-09-21 19:07:56,011 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5878ee1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:56, skipping insertion in model container [2024-09-21 19:07:56,012 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:55" (2/4) ... [2024-09-21 19:07:56,012 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5878ee1d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:56, skipping insertion in model container [2024-09-21 19:07:56,012 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:55" (3/4) ... [2024-09-21 19:07:56,012 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5878ee1d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:56, skipping insertion in model container [2024-09-21 19:07:56,012 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:56" (4/4) ... [2024-09-21 19:07:56,014 INFO L79 RefereeObserver]: Analyzing ICFG eq2.c [2024-09-21 19:07:56,018 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-21 19:07:56,019 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-4 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-21 19:07:56,019 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-21 19:07:56,019 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 4 edges. [2024-09-21 19:07:56,019 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-4 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 7 edges. [2024-09-21 19:07:56,020 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:07:56,020 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-21 19:07:56,020 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-21 19:07:56,020 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from procedure entry to loop head, 3 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to loop head [2024-09-21 19:07:56,066 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-21 19:07:56,068 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:56,068 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:56,069 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:56,070 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:56,073 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,086 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 19:07:56,089 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,090 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:56,090 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:56,090 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:56,094 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:56,110 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-4 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:07:56,127 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:07:56,130 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:56,131 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:56,131 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:56,131 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:56,131 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,134 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:07:56,138 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,138 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:56,138 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:56,138 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:56,138 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:56,146 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-21 19:07:56,161 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-21 19:07:56,161 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:56,161 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:56,162 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:56,162 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:56,162 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,176 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-21 19:07:56,177 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,177 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:56,177 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:56,177 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:56,177 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:56,187 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-21 19:07:56,196 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 7 edges [2024-09-21 19:07:56,200 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:56,200 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:56,200 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:56,201 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:56,201 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,214 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-21 19:07:56,214 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,214 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:56,214 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:56,214 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:56,215 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:56,220 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-4 to error location mainErr2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:07:56,230 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:07:56,230 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:56,230 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:56,230 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:56,230 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:56,230 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,231 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:07:56,231 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,231 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:56,234 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:56,234 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:56,234 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:56,236 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:07:56,245 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-21 19:07:56,245 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:56,245 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:56,245 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:56,246 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:56,246 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,248 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 19:07:56,248 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,248 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:56,249 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:56,249 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:56,249 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:56,251 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:07:56,256 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:07:56,256 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:56,257 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:56,257 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:56,257 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:56,257 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,259 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:07:56,259 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,259 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:56,259 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:56,259 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:56,259 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:56,276 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-21 19:07:56,277 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5878ee1d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 21.09 07:07:56, skipping insertion in model container [2024-09-21 19:07:56,277 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-21 19:07:56,279 INFO L158 Benchmark]: Toolchain (without parser) took 969.72ms. Allocated memory is still 176.2MB. Free memory was 105.2MB in the beginning and 119.8MB in the end (delta: -14.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:56,279 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 176.2MB. Free memory was 135.5MB in the beginning and 135.3MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:56,280 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 176.2MB. Free memory is still 107.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:56,281 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.24ms. Allocated memory is still 176.2MB. Free memory was 104.9MB in the beginning and 149.6MB in the end (delta: -44.7MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2024-09-21 19:07:56,282 INFO L158 Benchmark]: Boogie Preprocessor took 43.48ms. Allocated memory is still 176.2MB. Free memory was 149.6MB in the beginning and 147.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 19:07:56,282 INFO L158 Benchmark]: RCFGBuilder took 320.08ms. Allocated memory is still 176.2MB. Free memory was 147.0MB in the beginning and 135.3MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-21 19:07:56,283 INFO L158 Benchmark]: Referee took 266.70ms. Allocated memory is still 176.2MB. Free memory was 135.3MB in the beginning and 119.8MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 19:07:56,285 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is not a valid proof of correctness. Annotation is not a valid proof of correctness. Annotation is not valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 14. One counterexample starts in \old(cond)=0 and ends in \old(cond)=0, cond=0. Annotation is valid for all loop-free paths from loop head at line 23 to check that procedure precondition always holds at line 23. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from loop head at line 23 to exit of procedure main. 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 entry of procedure ULTIMATE.start to check that procedure precondition always holds at line -1. Annotation is valid for all loop-free paths from loop head at line 23 to loop head at line 23. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 176.2MB. Free memory was 135.5MB in the beginning and 135.3MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.21ms. Allocated memory is still 176.2MB. Free memory is still 107.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.24ms. Allocated memory is still 176.2MB. Free memory was 104.9MB in the beginning and 149.6MB in the end (delta: -44.7MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.48ms. Allocated memory is still 176.2MB. Free memory was 149.6MB in the beginning and 147.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 320.08ms. Allocated memory is still 176.2MB. Free memory was 147.0MB in the beginning and 135.3MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 266.70ms. Allocated memory is still 176.2MB. Free memory was 135.3MB in the beginning and 119.8MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-21 19:07:56,312 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE