./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/nested_1-1.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/nested_1-1.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ca4ee3dd Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-acceleration/nested_1-1.c ../results/automizer-verification-files/SV-COMP24_unreach-call/nested_1-1.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-ca4ee3d-m [2024-09-20 20:08:39,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 20:08:39,144 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 20:08:39,149 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 20:08:39,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 20:08:39,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 20:08:39,182 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 20:08:39,183 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 20:08:39,183 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 20:08:39,184 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 20:08:39,185 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 20:08:39,185 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 20:08:39,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 20:08:39,187 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 20:08:39,188 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 20:08:39,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 20:08:39,188 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 20:08:39,188 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 20:08:39,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 20:08:39,189 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 20:08:39,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 20:08:39,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 20:08:39,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 20:08:39,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 20:08:39,193 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 20:08:39,194 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 20:08:39,194 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 20:08:39,194 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 20:08:39,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 20:08:39,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 20:08:39,195 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 20:08:39,195 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 20:08:39,195 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 20:08:39,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:08:39,197 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 20:08:39,197 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 20:08:39,197 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 20:08:39,198 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 20:08:39,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 20:08:39,198 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 20:08:39,198 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 20:08:39,199 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 20:08:39,199 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 20:08:39,200 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 20:08:39,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 20:08:39,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 20:08:39,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 20:08:39,518 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 20:08:39,519 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 20:08:39,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/nested_1-1.c [2024-09-20 20:08:40,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 20:08:41,145 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 20:08:41,145 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/nested_1-1.c [2024-09-20 20:08:41,151 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/99c60fd8c/526226b160c64391807ce4deb0328682/FLAG9ab3a65a1 [2024-09-20 20:08:41,163 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/99c60fd8c/526226b160c64391807ce4deb0328682 [2024-09-20 20:08:41,166 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 20:08:41,167 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 20:08:41,168 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/nested_1-1.yml/witness-2.1.yml [2024-09-20 20:08:41,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 20:08:41,213 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 20:08:41,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 20:08:41,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 20:08:41,219 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 20:08:41,220 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:08:41" (1/2) ... [2024-09-20 20:08:41,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78543710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:41, skipping insertion in model container [2024-09-20 20:08:41,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:08:41" (1/2) ... [2024-09-20 20:08:41,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4f480721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:41, skipping insertion in model container [2024-09-20 20:08:41,225 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 08:08:41" (2/2) ... [2024-09-20 20:08:41,225 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78543710 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:41, skipping insertion in model container [2024-09-20 20:08:41,225 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 08:08:41" (2/2) ... [2024-09-20 20:08:41,233 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 20:08:41,233 INFO L1541 ArrayList]: Loop invariant at [L16-L24] ((x == 0) || (((x + 4294967295) % 4294967296) < 268435455)) [2024-09-20 20:08:41,234 INFO L1541 ArrayList]: Loop invariant at [L19-L21] ((x == 0) || ((x <= 268435454) && (((x + 4294967295) % 4294967296) <= 268435454))) [2024-09-20 20:08:41,234 INFO L1541 ArrayList]: Function contract at [L5]: requires ((0 <= \old(cond)) && (\old(cond) <= 1)), ensures ((0 <= \old(cond)) && (\old(cond) <= 1)) [2024-09-20 20:08:41,249 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 20:08:41,402 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/nested_1-1.c[322,335] [2024-09-20 20:08:41,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:08:41,425 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 20:08:41,454 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/nested_1-1.c[322,335] Start Parsing Local Start Parsing Local [2024-09-20 20:08:41,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:08:41,473 INFO L204 MainTranslator]: Completed translation [2024-09-20 20:08:41,473 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:41 WrapperNode [2024-09-20 20:08:41,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 20:08:41,475 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 20:08:41,475 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 20:08:41,475 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 20:08:41,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:41" (1/1) ... [2024-09-20 20:08:41,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:41" (1/1) ... [2024-09-20 20:08:41,493 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:41" (1/1) ... [2024-09-20 20:08:41,502 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 20:08:41,502 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:41" (1/1) ... [2024-09-20 20:08:41,502 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:41" (1/1) ... [2024-09-20 20:08:41,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:41" (1/1) ... [2024-09-20 20:08:41,509 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:41" (1/1) ... [2024-09-20 20:08:41,509 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:41" (1/1) ... [2024-09-20 20:08:41,510 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:41" (1/1) ... [2024-09-20 20:08:41,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 20:08:41,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 20:08:41,513 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 20:08:41,513 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 20:08:41,514 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:41" (1/1) ... [2024-09-20 20:08:41,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:08:41,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 20:08:41,546 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 20:08:41,549 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 20:08:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 20:08:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 20:08:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 20:08:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 20:08:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 20:08:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 20:08:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 20:08:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 20:08:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 20:08:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 20:08:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 20:08:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 20:08:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 20:08:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 20:08:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 20:08:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 20:08:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 20:08:41,729 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 20:08:41,731 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 20:08:41,877 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:08:41,898 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 20:08:41,936 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 20:08:41,937 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-20 20:08:41,937 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:08:41 BoogieIcfgContainer [2024-09-20 20:08:41,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 20:08:41,939 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 20:08:41,939 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 20:08:41,940 INFO L274 PluginConnector]: Referee initialized [2024-09-20 20:08:41,940 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 08:08:41" (1/4) ... [2024-09-20 20:08:41,941 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2be0eb41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:08:41, skipping insertion in model container [2024-09-20 20:08:41,941 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 08:08:41" (2/4) ... [2024-09-20 20:08:41,941 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2be0eb41 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:08:41, skipping insertion in model container [2024-09-20 20:08:41,942 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:41" (3/4) ... [2024-09-20 20:08:41,943 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2be0eb41 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:08:41, skipping insertion in model container [2024-09-20 20:08:41,943 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:08:41" (4/4) ... [2024-09-20 20:08:41,944 INFO L79 RefereeObserver]: Analyzing ICFG nested_1-1.c [2024-09-20 20:08:41,947 INFO L113 InvariantChecker]: Found 2 loops. [2024-09-20 20:08:41,948 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 20:08:41,948 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L19-3 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-20 20:08:41,948 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-20 20:08:41,949 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 20:08:41,949 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L19-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 20:08:41,949 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 20:08:41,949 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 20:08:41,949 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to loop head, 3 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 [2024-09-20 20:08:41,990 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 20:08:41,991 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:41,991 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:41,992 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:41,993 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:41,994 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,006 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 20:08:42,007 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,007 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:42,007 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:42,007 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:42,010 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:42,026 INFO L520 InvariantChecker]: The annotation(s) from loop head L16-3 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:08:42,037 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:08:42,037 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:42,038 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:42,038 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:42,038 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:42,038 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,044 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:08:42,044 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,044 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:42,045 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:42,045 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:42,045 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:42,048 INFO L520 InvariantChecker]: The annotation(s) from loop head L19-3 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 20:08:42,056 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:08:42,057 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:42,057 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:42,057 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:42,057 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:42,057 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,062 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:08:42,062 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,063 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:42,063 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:42,063 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:42,063 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:42,066 INFO L520 InvariantChecker]: The annotation(s) from loop head L16-3 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 20:08:42,073 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 20:08:42,074 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:42,074 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:42,074 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:42,074 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:42,074 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,076 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 20:08:42,076 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,076 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:42,077 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:42,077 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:42,077 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:42,082 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 20:08:42,090 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 20:08:42,091 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:42,091 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:42,091 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:42,091 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:42,091 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,100 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-20 20:08:42,100 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,100 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:42,101 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:42,101 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:42,107 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:42,112 INFO L520 InvariantChecker]: The annotation(s) from loop head L19-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 20:08:42,126 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 20:08:42,131 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:42,131 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:42,132 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:42,132 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:42,132 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,136 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 20:08:42,137 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,137 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:42,137 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:42,137 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:42,138 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:42,140 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:08:42,147 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:08:42,148 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:42,148 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:42,148 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:42,148 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:42,149 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,150 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:08:42,151 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:42,151 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:42,151 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:42,151 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:42,151 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:42,168 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-20 20:08:42,170 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2be0eb41 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 08:08:42, skipping insertion in model container [2024-09-20 20:08:42,171 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 20:08:42,173 INFO L158 Benchmark]: Toolchain (without parser) took 958.44ms. Allocated memory is still 157.3MB. Free memory was 126.3MB in the beginning and 100.8MB in the end (delta: 25.6MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2024-09-20 20:08:42,174 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 109.1MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:08:42,175 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 157.3MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:08:42,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.82ms. Allocated memory is still 157.3MB. Free memory was 126.3MB in the beginning and 112.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 20:08:42,176 INFO L158 Benchmark]: Boogie Preprocessor took 37.18ms. Allocated memory is still 157.3MB. Free memory was 112.7MB in the beginning and 111.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 20:08:42,177 INFO L158 Benchmark]: RCFGBuilder took 425.91ms. Allocated memory is still 157.3MB. Free memory was 110.6MB in the beginning and 120.2MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-20 20:08:42,178 INFO L158 Benchmark]: Referee took 231.85ms. Allocated memory is still 157.3MB. Free memory was 120.2MB in the beginning and 100.8MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-09-20 20:08:42,181 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 7. One counterexample starts in \old(cond)=0 and ends in \old(cond)=0, cond=0. 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 16 to check that procedure precondition always holds at line 16. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 16. Annotation is valid for all loop-free paths from loop head at line 16 to loop head at line 19. Annotation is valid for all loop-free paths from loop head at line 19 to loop head at line 19. Annotation is valid for all loop-free paths from loop head at line 19 to loop head at line 16. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 109.1MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.22ms. Allocated memory is still 157.3MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.82ms. Allocated memory is still 157.3MB. Free memory was 126.3MB in the beginning and 112.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.18ms. Allocated memory is still 157.3MB. Free memory was 112.7MB in the beginning and 111.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 425.91ms. Allocated memory is still 157.3MB. Free memory was 110.6MB in the beginning and 120.2MB in the end (delta: -9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 231.85ms. Allocated memory is still 157.3MB. Free memory was 120.2MB in the beginning and 100.8MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-20 20:08:42,204 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