./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursified_loop-invariants/recursified_mod4.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/recursified_mod4.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/recursified_loop-invariants/recursified_mod4.c ../results/automizer-verification-files/SV-COMP24_unreach-call/recursified_mod4.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 20:54:44,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:54:45,008 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:54:45,014 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:54:45,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:54:45,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:54:45,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:54:45,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:54:45,059 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:54:45,062 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:54:45,063 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:54:45,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:54:45,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:54:45,064 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:54:45,064 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:54:45,064 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:54:45,065 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:54:45,065 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:54:45,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:54:45,065 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:54:45,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:54:45,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:54:45,068 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:54:45,068 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:54:45,068 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:54:45,068 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:54:45,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:54:45,069 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:54:45,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:54:45,070 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:54:45,070 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:54:45,070 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:54:45,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:45,070 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:54:45,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:54:45,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:54:45,071 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:54:45,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:54:45,073 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:54:45,073 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:54:45,074 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:54:45,074 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:54:45,074 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:54:45,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:54:45,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:54:45,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:54:45,360 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:54:45,361 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:54:45,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/recursified_mod4.yml/witness-2.1.yml [2024-09-11 20:54:45,426 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:54:45,426 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:54:45,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursified_loop-invariants/recursified_mod4.c [2024-09-11 20:54:46,878 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:54:47,071 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:54:47,071 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursified_loop-invariants/recursified_mod4.c [2024-09-11 20:54:47,077 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/be61b9bb2/88d1ce4a5f114466abe0ada92cbbf040/FLAG686be3c44 [2024-09-11 20:54:47,097 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/be61b9bb2/88d1ce4a5f114466abe0ada92cbbf040 [2024-09-11 20:54:47,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:54:47,099 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:54:47,101 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:47,101 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:54:47,105 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:54:47,106 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 08:54:45" (1/2) ... [2024-09-11 20:54:47,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2cad37 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:47, skipping insertion in model container [2024-09-11 20:54:47,107 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 08:54:45" (1/2) ... [2024-09-11 20:54:47,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@9b16703 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:47, skipping insertion in model container [2024-09-11 20:54:47,109 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:47" (2/2) ... [2024-09-11 20:54:47,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2cad37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:47, skipping insertion in model container [2024-09-11 20:54:47,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:47" (2/2) ... [2024-09-11 20:54:47,113 INFO L90 nessWitnessExtractor]: Witness did not contain any usable entries. [2024-09-11 20:54:47,130 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:54:47,269 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/recursified_loop-invariants/recursified_mod4.c[962,975] [2024-09-11 20:54:47,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:47,294 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:54:47,308 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/recursified_loop-invariants/recursified_mod4.c[962,975] [2024-09-11 20:54:47,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:47,329 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:54:47,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:47 WrapperNode [2024-09-11 20:54:47,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:47,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:54:47,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:54:47,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:54:47,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:47" (1/1) ... [2024-09-11 20:54:47,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:47" (1/1) ... [2024-09-11 20:54:47,351 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:47" (1/1) ... [2024-09-11 20:54:47,370 INFO L175 MemorySlicer]: Split 13 memory accesses to 3 slices as follows [2, 7, 4]. 54 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 7, 1]. The 1 writes are split as follows [0, 0, 1]. [2024-09-11 20:54:47,374 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:47" (1/1) ... [2024-09-11 20:54:47,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:47" (1/1) ... [2024-09-11 20:54:47,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:47" (1/1) ... [2024-09-11 20:54:47,381 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:47" (1/1) ... [2024-09-11 20:54:47,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:47" (1/1) ... [2024-09-11 20:54:47,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:47" (1/1) ... [2024-09-11 20:54:47,389 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:54:47,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:54:47,390 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:54:47,390 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:54:47,391 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:47" (1/1) ... [2024-09-11 20:54:47,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:47,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:54:47,419 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 20:54:47,421 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 20:54:47,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:54:47,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:54:47,469 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:54:47,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-11 20:54:47,469 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_13_to_14_0 [2024-09-11 20:54:47,469 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:54:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:54:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:54:47,469 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:54:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:54:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:54:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:54:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_13_to_14_0 [2024-09-11 20:54:47,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-11 20:54:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-09-11 20:54:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-09-11 20:54:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-11 20:54:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-09-11 20:54:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-09-11 20:54:47,471 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:54:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-11 20:54:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-11 20:54:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-11 20:54:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-09-11 20:54:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:54:47,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:54:47,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:54:47,539 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:54:47,541 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:54:47,672 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-09-11 20:54:47,672 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:54:47,692 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:54:47,693 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:54:47,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:47 BoogieIcfgContainer [2024-09-11 20:54:47,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:54:47,694 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:54:47,694 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:54:47,694 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:54:47,695 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 08:54:45" (1/4) ... [2024-09-11 20:54:47,695 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ed9656e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:47, skipping insertion in model container [2024-09-11 20:54:47,695 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:54:47" (2/4) ... [2024-09-11 20:54:47,696 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ed9656e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:54:47, skipping insertion in model container [2024-09-11 20:54:47,696 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:47" (3/4) ... [2024-09-11 20:54:47,696 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ed9656e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:54:47, skipping insertion in model container [2024-09-11 20:54:47,696 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:47" (4/4) ... [2024-09-11 20:54:47,697 INFO L79 RefereeObserver]: Analyzing ICFG recursified_mod4.c [2024-09-11 20:54:47,701 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:54:47,702 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-11 20:54:47,702 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to error location [2024-09-11 20:54:47,737 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:54:47,738 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:47,742 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:47,742 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:47,743 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:47,745 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:47,753 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:54:47,754 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:47,755 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:47,755 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:47,755 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:47,756 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:47,786 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-11 20:54:47,787 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ed9656e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:54:47, skipping insertion in model container [2024-09-11 20:54:47,788 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:54:47,789 INFO L158 Benchmark]: Toolchain (without parser) took 689.39ms. Allocated memory is still 190.8MB. Free memory was 121.9MB in the beginning and 151.5MB in the end (delta: -29.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:47,790 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 102.8MB. Free memory is still 69.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:47,791 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 167.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:47,792 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.44ms. Allocated memory is still 190.8MB. Free memory was 121.5MB in the beginning and 110.3MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-11 20:54:47,793 INFO L158 Benchmark]: Boogie Preprocessor took 57.14ms. Allocated memory is still 190.8MB. Free memory was 110.3MB in the beginning and 108.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:54:47,793 INFO L158 Benchmark]: RCFGBuilder took 303.76ms. Allocated memory is still 190.8MB. Free memory was 108.0MB in the beginning and 156.6MB in the end (delta: -48.6MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2024-09-11 20:54:47,794 INFO L158 Benchmark]: Referee took 94.03ms. Allocated memory is still 190.8MB. Free memory was 156.6MB in the beginning and 151.5MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-11 20:54:47,797 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 25. One counterexample starts in \old(cond)=0 and ends in \old(cond)=0, cond=0. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.22ms. Allocated memory is still 102.8MB. Free memory is still 69.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 167.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.44ms. Allocated memory is still 190.8MB. Free memory was 121.5MB in the beginning and 110.3MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.14ms. Allocated memory is still 190.8MB. Free memory was 110.3MB in the beginning and 108.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 303.76ms. Allocated memory is still 190.8MB. Free memory was 108.0MB in the beginning and 156.6MB in the end (delta: -48.6MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * Referee took 94.03ms. Allocated memory is still 190.8MB. Free memory was 156.6MB in the beginning and 151.5MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:54:47,826 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