./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound2.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/ps4-ll_valuebound2.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 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/nla-digbench-scaling/ps4-ll_valuebound2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/ps4-ll_valuebound2.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-dev-a9b967e-m [2024-09-11 20:52:54,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:52:55,054 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:52:55,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:52:55,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:52:55,093 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:52:55,094 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:52:55,095 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:52:55,095 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:52:55,097 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:52:55,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:52:55,098 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:52:55,098 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:52:55,099 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:52:55,100 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:52:55,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:52:55,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:52:55,101 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:52:55,101 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:52:55,102 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:52:55,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:52:55,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:52:55,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:52:55,106 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:52:55,106 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:52:55,107 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:52:55,107 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:52:55,107 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:52:55,107 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:52:55,107 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:52:55,108 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:52:55,108 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:52:55,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:52:55,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:52:55,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:52:55,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:52:55,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:52:55,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:52:55,110 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:52:55,110 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:52:55,111 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:52:55,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:52:55,111 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:52:55,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:52:55,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:52:55,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:52:55,391 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:52:55,391 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:52:55,393 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/ps4-ll_valuebound2.yml/witness-2.1.yml [2024-09-11 20:52:55,445 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:52:55,445 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:52:55,446 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound2.c [2024-09-11 20:52:56,857 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:52:57,029 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:52:57,029 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound2.c [2024-09-11 20:52:57,035 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/0956de682/0ff30738dc954c1a81d68deb93306d83/FLAGe0c57c6fb [2024-09-11 20:52:57,047 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/0956de682/0ff30738dc954c1a81d68deb93306d83 [2024-09-11 20:52:57,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:52:57,048 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:52:57,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:52:57,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:52:57,055 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:52:57,056 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:52:55" (1/2) ... [2024-09-11 20:52:57,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d30e749 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:52:57, skipping insertion in model container [2024-09-11 20:52:57,058 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:52:55" (1/2) ... [2024-09-11 20:52:57,060 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7e8b305d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:52:57, skipping insertion in model container [2024-09-11 20:52:57,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:52:57" (2/2) ... [2024-09-11 20:52:57,060 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d30e749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:52:57, skipping insertion in model container [2024-09-11 20:52:57,060 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:52:57" (2/2) ... [2024-09-11 20:52:57,071 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:52:57,071 INFO L1541 ArrayList]: Loop invariant at [L27-L36] ((((((0 <= k) && (k <= 2)) && (((__int128) k * y) == ((__int128) y * y))) && ((y + ((__int128) y * y)) == (c + ((__int128) c * y)))) && (((((((__int128) y * y) * y) * 2) + ((((__int128) y * y) * y) * y)) + ((__int128) y * y)) == ((__int128) x * 4))) || (((((k <= 2) && (c == 1)) && (x == 1)) && (y == 1)) && (1 <= k))) [2024-09-11 20:52:57,071 INFO L1541 ArrayList]: Function contract at [L9]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-11 20:52:57,088 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:52:57,227 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound2.c[458,471] [2024-09-11 20:52:57,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:52:57,248 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-11 20:52:57,291 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound2.c[458,471] Start Parsing Local [2024-09-11 20:52:57,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:52:57,331 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:52:57,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:52:57 WrapperNode [2024-09-11 20:52:57,332 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:52:57,333 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:52:57,333 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:52:57,333 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:52:57,345 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:52:57" (1/1) ... [2024-09-11 20:52:57,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:52:57" (1/1) ... [2024-09-11 20:52:57,352 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:52:57" (1/1) ... [2024-09-11 20:52:57,366 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 [2024-09-11 20:52:57,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:52:57" (1/1) ... [2024-09-11 20:52:57,370 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:52:57" (1/1) ... [2024-09-11 20:52:57,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:52:57" (1/1) ... [2024-09-11 20:52:57,382 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:52:57" (1/1) ... [2024-09-11 20:52:57,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:52:57" (1/1) ... [2024-09-11 20:52:57,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:52:57" (1/1) ... [2024-09-11 20:52:57,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:52:57,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:52:57,388 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:52:57,388 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:52:57,389 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:52:57" (1/1) ... [2024-09-11 20:52:57,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:52:57,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:52:57,419 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) [2024-09-11 20:52:57,422 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 [2024-09-11 20:52:57,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:52:57,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:52:57,467 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:52:57,468 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:52:57,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-11 20:52:57,469 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:52:57,469 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:52:57,470 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:52:57,470 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:52:57,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:52:57,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2024-09-11 20:52:57,470 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:52:57,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:52:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:52:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:52:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-11 20:52:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:52:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-11 20:52:57,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-11 20:52:57,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:52:57,532 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:52:57,534 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:52:57,658 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-11 20:52:57,701 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-09-11 20:52:57,701 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:52:57,720 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:52:57,720 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-11 20:52:57,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:52:57 BoogieIcfgContainer [2024-09-11 20:52:57,721 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:52:57,722 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:52:57,722 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:52:57,723 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:52:57,723 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:52:55" (1/4) ... [2024-09-11 20:52:57,723 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2f28d8d9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:52:57, skipping insertion in model container [2024-09-11 20:52:57,724 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:52:57" (2/4) ... [2024-09-11 20:52:57,724 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2f28d8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:52:57, skipping insertion in model container [2024-09-11 20:52:57,724 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:52:57" (3/4) ... [2024-09-11 20:52:57,724 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2f28d8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:52:57, skipping insertion in model container [2024-09-11 20:52:57,725 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:52:57" (4/4) ... [2024-09-11 20:52:57,726 INFO L79 RefereeObserver]: Analyzing ICFG ps4-ll_valuebound2.c [2024-09-11 20:52:57,729 INFO L112 InvariantChecker]: Found 1 loops. [2024-09-11 20:52:57,731 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L27-3 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 7 edges. [2024-09-11 20:52:57,732 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L27-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-11 20:52:57,732 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 4 edges. [2024-09-11 20:52:57,732 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L27-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-11 20:52:57,732 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-11 20:52:57,732 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-11 20:52:57,732 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L27-3 to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-11 20:52:57,733 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 2 loop-free subgraphs from procedure entry to error location, 3 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from procedure entry to loop head [2024-09-11 20:52:57,784 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-11 20:52:57,786 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:52:57,786 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:52:57,787 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:52:57,788 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:52:57,789 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:52:57,823 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-11 20:52:57,826 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:52:57,826 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:52:57,826 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:52:57,827 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:52:57,841 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:52:57,867 INFO L514 InvariantChecker]: The annotation(s) from loop head L27-3 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:52:57,897 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:52:57,897 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:52:57,897 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:52:57,898 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:52:57,898 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:52:57,898 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:52:57,912 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:52:57,912 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:52:57,913 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:52:57,913 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:52:57,913 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:52:57,915 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:52:57,923 INFO L514 InvariantChecker]: The annotation(s) from loop head L27-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:52:57,943 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:52:57,944 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:52:57,944 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:52:57,945 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:52:57,945 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:52:57,945 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:52:57,954 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:52:57,954 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:52:57,954 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:52:57,955 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:52:57,955 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:52:57,955 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:52:57,980 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-11 20:52:57,980 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:52:57,981 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:52:57,982 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:52:57,982 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:52:57,982 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:52:58,010 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-11 20:52:58,011 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:52:58,011 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:52:58,011 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:52:58,012 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:52:58,012 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:52:58,019 INFO L514 InvariantChecker]: The annotation(s) from loop head L27-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:52:58,032 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:52:58,033 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:52:58,034 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:52:58,034 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:52:58,034 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:52:58,034 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:52:58,037 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:52:58,038 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:52:58,038 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:52:58,039 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:52:58,039 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:52:58,040 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:52:58,043 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:52:58,053 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:52:58,053 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:52:58,053 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:52:58,054 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:52:58,054 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:52:58,054 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:52:58,056 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:52:58,056 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:52:58,056 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:52:58,056 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:52:58,057 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:52:58,057 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:52:58,059 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:52:58,071 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-11 20:52:58,071 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:52:58,071 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:52:58,071 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:52:58,071 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:52:58,072 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:52:58,092 INFO L101 BaseMinimizeStates]: Removed 16 edges and 5 locations by large block encoding [2024-09-11 20:52:58,093 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:52:58,093 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:52:58,093 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:52:58,093 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:52:58,095 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:52:58,100 INFO L514 InvariantChecker]: The annotation(s) from loop head L27-3 to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:52:58,106 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-11 20:52:58,107 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2f28d8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:52:58, skipping insertion in model container [2024-09-11 20:52:58,107 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:52:58,109 INFO L158 Benchmark]: Toolchain (without parser) took 1060.07ms. Allocated memory is still 176.2MB. Free memory was 123.5MB in the beginning and 57.8MB in the end (delta: 65.7MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-09-11 20:52:58,109 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 176.2MB. Free memory was 144.9MB in the beginning and 144.8MB in the end (delta: 188.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:52:58,110 INFO L158 Benchmark]: CDTParser took 0.83ms. Allocated memory is still 176.2MB. Free memory is still 142.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:52:58,110 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.17ms. Allocated memory is still 176.2MB. Free memory was 122.8MB in the beginning and 109.4MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:52:58,111 INFO L158 Benchmark]: Boogie Preprocessor took 53.08ms. Allocated memory is still 176.2MB. Free memory was 109.4MB in the beginning and 107.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:52:58,112 INFO L158 Benchmark]: RCFGBuilder took 334.24ms. Allocated memory is still 176.2MB. Free memory was 107.4MB in the beginning and 92.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:52:58,112 INFO L158 Benchmark]: Referee took 385.56ms. Allocated memory is still 176.2MB. Free memory was 92.0MB in the beginning and 57.8MB in the end (delta: 34.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-09-11 20:52:58,114 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 main to loop head at line 27. One counterexample starts in and ends in c=0, k=0, x=0, y=0. 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 11. Annotation is valid for all loop-free paths from loop head at line 27 to check that procedure precondition always holds at line 37. Annotation is valid for all loop-free paths from loop head at line 27 to check that procedure precondition always holds at line 27. Annotation is valid for all loop-free paths from loop head at line 27 to check that procedure precondition always holds at line 28. 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 27 to loop head at line 27. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.18ms. Allocated memory is still 176.2MB. Free memory was 144.9MB in the beginning and 144.8MB in the end (delta: 188.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.83ms. Allocated memory is still 176.2MB. Free memory is still 142.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.17ms. Allocated memory is still 176.2MB. Free memory was 122.8MB in the beginning and 109.4MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.08ms. Allocated memory is still 176.2MB. Free memory was 109.4MB in the beginning and 107.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 334.24ms. Allocated memory is still 176.2MB. Free memory was 107.4MB in the beginning and 92.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 385.56ms. Allocated memory is still 176.2MB. Free memory was 92.0MB in the beginning and 57.8MB in the end (delta: 34.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:52:58,147 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE