./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/cpachecker-verification-files/SV-COMP24_unreach-call/recursified_mod4.yml/output/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27b49876 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/recursified_loop-invariants/recursified_mod4.c ../results/cpachecker-verification-files/SV-COMP24_unreach-call/recursified_mod4.yml/output/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 19:12:22,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:12:22,981 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 19:12:22,984 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:12:22,984 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:12:22,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:12:22,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:12:22,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:12:22,999 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:12:23,000 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:12:23,000 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:12:23,000 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:12:23,001 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:12:23,001 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:12:23,001 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:12:23,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:12:23,002 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:12:23,002 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:12:23,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 19:12:23,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:12:23,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:12:23,004 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:12:23,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:12:23,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:12:23,004 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:12:23,005 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:12:23,005 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:12:23,005 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:12:23,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:12:23,006 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:12:23,006 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:12:23,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:12:23,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:12:23,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:12:23,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:12:23,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:12:23,008 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:12:23,008 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 19:12:23,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 19:12:23,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:12:23,009 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:12:23,009 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:12:23,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:12:23,009 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:12:23,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:12:23,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:12:23,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:12:23,243 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:12:23,243 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:12:23,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/recursified_mod4.yml/output/witness-2.1.yml [2024-09-21 19:12:23,339 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:12:23,340 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:12:23,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursified_loop-invariants/recursified_mod4.c [2024-09-21 19:12:24,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:12:24,828 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:12:24,828 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursified_loop-invariants/recursified_mod4.c [2024-09-21 19:12:24,834 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/31b4d6a26/6b595022acd14a7d843c16f8e6423821/FLAG28399312d [2024-09-21 19:12:25,249 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/31b4d6a26/6b595022acd14a7d843c16f8e6423821 [2024-09-21 19:12:25,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:12:25,251 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:12:25,251 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:12:25,252 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:12:25,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:12:25,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:12:23" (1/2) ... [2024-09-21 19:12:25,258 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1462c2c0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:12:25, skipping insertion in model container [2024-09-21 19:12:25,259 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:12:23" (1/2) ... [2024-09-21 19:12:25,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3cb71d90 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:12:25, skipping insertion in model container [2024-09-21 19:12:25,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:12:25" (2/2) ... [2024-09-21 19:12:25,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1462c2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:12:25, skipping insertion in model container [2024-09-21 19:12:25,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:12:25" (2/2) ... [2024-09-21 19:12:25,275 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:12:25,276 INFO L1541 ArrayList]: Function contract at [L52]: requires 1, ensures 1 [2024-09-21 19:12:25,276 INFO L1541 ArrayList]: Function contract at [L38]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:12:25,276 INFO L1541 ArrayList]: Function contract at [L21]: requires 1, ensures 1 [2024-09-21 19:12:25,279 INFO L1541 ArrayList]: Function contract at [L15]: requires 1, ensures 1 [2024-09-21 19:12:25,315 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:12:25,504 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/recursified_loop-invariants/recursified_mod4.c[962,975] [2024-09-21 19:12:25,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:12:25,564 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-21 19:12:25,644 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/recursified_loop-invariants/recursified_mod4.c[962,975] Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-21 19:12:25,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:12:25,682 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:12:25,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:12:25 WrapperNode [2024-09-21 19:12:25,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:12:25,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:12:25,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:12:25,689 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:12:25,712 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:12:25" (1/1) ... [2024-09-21 19:12:25,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:12:25" (1/1) ... [2024-09-21 19:12:25,723 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:12:25" (1/1) ... [2024-09-21 19:12:25,738 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure reach_error is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-21 19:12:25,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:12:25" (1/1) ... [2024-09-21 19:12:25,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:12:25" (1/1) ... [2024-09-21 19:12:25,745 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:12:25" (1/1) ... [2024-09-21 19:12:25,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:12:25" (1/1) ... [2024-09-21 19:12:25,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:12:25" (1/1) ... [2024-09-21 19:12:25,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:12:25" (1/1) ... [2024-09-21 19:12:25,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:12:25,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:12:25,763 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:12:25,763 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:12:25,764 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:12:25" (1/1) ... [2024-09-21 19:12:25,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:12:25,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:12:25,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-21 19:12:25,823 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-21 19:12:25,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:12:25,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:12:25,859 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:12:25,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-21 19:12:25,861 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_13_to_14_0 [2024-09-21 19:12:25,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:12:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:12:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:12:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:12:25,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:12:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 19:12:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:12:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_13_to_14_0 [2024-09-21 19:12:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-21 19:12:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-21 19:12:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:12:25,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-21 19:12:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-21 19:12:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:12:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:12:25,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:12:25,924 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:12:25,926 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:12:25,930 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:12:25,953 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:12:25,988 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:12:26,028 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:12:26,041 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:12:26,076 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:12:26,076 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-21 19:12:26,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:12:26 BoogieIcfgContainer [2024-09-21 19:12:26,076 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:12:26,077 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:12:26,077 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:12:26,078 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:12:26,078 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:12:23" (1/4) ... [2024-09-21 19:12:26,078 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@700d48a0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:12:26, skipping insertion in model container [2024-09-21 19:12:26,078 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:12:25" (2/4) ... [2024-09-21 19:12:26,079 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@700d48a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:12:26, skipping insertion in model container [2024-09-21 19:12:26,079 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:12:25" (3/4) ... [2024-09-21 19:12:26,080 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@700d48a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:12:26, skipping insertion in model container [2024-09-21 19:12:26,080 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:12:26" (4/4) ... [2024-09-21 19:12:26,081 INFO L79 RefereeObserver]: Analyzing ICFG recursified_mod4.c [2024-09-21 19:12:26,084 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 19:12:26,085 INFO L373 InvariantChecker]: Will check inductivity from ENTRY func_to_recursive_line_13_to_14_0ENTRY to ERROR_LOC func_to_recursive_line_13_to_14_0Err0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-21 19:12:26,085 INFO L373 InvariantChecker]: Will check inductivity from ENTRY func_to_recursive_line_13_to_14_0ENTRY to ERROR_LOC func_to_recursive_line_13_to_14_0Err1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-21 19:12:26,085 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:12:26,086 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-21 19:12:26,086 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 6 edges. [2024-09-21 19:12:26,086 INFO L373 InvariantChecker]: Will check inductivity from ENTRY reach_errorENTRY to ERROR_LOC reach_errorErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:12:26,086 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:12:26,086 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-21 19:12:26,087 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-21 19:12:26,087 INFO L131 InvariantChecker]: Will check 9 loop-free subgraphs from procedure entry to error location [2024-09-21 19:12:26,133 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:12:26,134 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:12:26,134 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:12:26,135 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:12:26,135 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:12:26,137 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,146 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:12:26,151 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,151 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:12:26,151 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:12:26,151 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:12:26,152 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:12:26,167 INFO L520 InvariantChecker]: The annotation(s) from entry func_to_recursive_line_13_to_14_0ENTRY to error location func_to_recursive_line_13_to_14_0Err0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:12:26,176 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-21 19:12:26,176 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:12:26,177 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:12:26,177 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:12:26,177 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:12:26,177 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,183 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 19:12:26,183 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,183 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:12:26,183 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:12:26,184 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:12:26,186 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:12:26,188 INFO L520 InvariantChecker]: The annotation(s) from entry func_to_recursive_line_13_to_14_0ENTRY to error location func_to_recursive_line_13_to_14_0Err1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:12:26,195 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:12:26,195 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:12:26,196 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:12:26,196 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:12:26,196 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:12:26,196 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,197 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:12:26,197 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,197 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:12:26,197 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:12:26,197 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:12:26,198 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:12:26,199 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:12:26,210 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-21 19:12:26,210 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:12:26,211 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:12:26,211 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:12:26,211 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:12:26,211 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,219 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-21 19:12:26,220 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,220 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:12:26,220 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:12:26,220 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:12:26,221 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:12:26,222 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:12:26,227 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-21 19:12:26,228 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:12:26,228 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:12:26,228 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:12:26,228 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:12:26,228 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,243 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-21 19:12:26,244 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,244 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:12:26,244 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:12:26,244 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:12:26,244 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:12:26,246 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:12:26,250 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:12:26,250 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:12:26,251 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:12:26,251 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:12:26,251 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:12:26,251 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,252 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:12:26,252 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,252 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:12:26,252 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:12:26,252 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:12:26,252 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:12:26,253 INFO L520 InvariantChecker]: The annotation(s) from entry reach_errorENTRY to error location reach_errorErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:12:26,260 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:12:26,260 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:12:26,261 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:12:26,261 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:12:26,261 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:12:26,261 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,261 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:12:26,262 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,262 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:12:26,262 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:12:26,262 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:12:26,262 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:12:26,264 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:12:26,268 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-21 19:12:26,268 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:12:26,269 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:12:26,269 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:12:26,269 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:12:26,269 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,271 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 19:12:26,271 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,271 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:12:26,271 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:12:26,271 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:12:26,272 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:12:26,273 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:12:26,277 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:12:26,277 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:12:26,277 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:12:26,277 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:12:26,277 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:12:26,278 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,279 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:12:26,279 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:12:26,279 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:12:26,279 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:12:26,279 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:12:26,279 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:12:26,290 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-21 19:12:26,291 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@700d48a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 21.09 07:12:26, skipping insertion in model container [2024-09-21 19:12:26,291 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-21 19:12:26,292 INFO L158 Benchmark]: Toolchain (without parser) took 1040.87ms. Allocated memory was 155.2MB in the beginning and 228.6MB in the end (delta: 73.4MB). Free memory was 79.8MB in the beginning and 163.7MB in the end (delta: -84.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:12:26,293 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 155.2MB. Free memory was 105.6MB in the beginning and 105.4MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:12:26,293 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 155.2MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:12:26,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.16ms. Allocated memory was 155.2MB in the beginning and 228.6MB in the end (delta: 73.4MB). Free memory was 79.5MB in the beginning and 198.3MB in the end (delta: -118.9MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2024-09-21 19:12:26,294 INFO L158 Benchmark]: Boogie Preprocessor took 76.16ms. Allocated memory is still 228.6MB. Free memory was 198.3MB in the beginning and 197.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:12:26,294 INFO L158 Benchmark]: RCFGBuilder took 313.71ms. Allocated memory is still 228.6MB. Free memory was 196.2MB in the beginning and 183.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-21 19:12:26,295 INFO L158 Benchmark]: Referee took 214.04ms. Allocated memory is still 228.6MB. Free memory was 183.7MB in the beginning and 163.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-09-21 19:12:26,297 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. Annotation is valid for all loop-free paths from entry of procedure reach_error to exit of procedure reach_error. Annotation is valid for all loop-free paths from entry of procedure func_to_recursive_line_13_to_14_0 to check that procedure precondition always holds at line 45. Annotation is valid for all loop-free paths from entry of procedure main to exit of procedure main. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from entry of procedure func_to_recursive_line_13_to_14_0 to exit of procedure func_to_recursive_line_13_to_14_0. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 55. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 56. Annotation is valid for all loop-free paths from entry of procedure ULTIMATE.start to check that procedure precondition always holds at line -1. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 155.2MB. Free memory was 105.6MB in the beginning and 105.4MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.11ms. Allocated memory is still 155.2MB. Free memory is still 125.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.16ms. Allocated memory was 155.2MB in the beginning and 228.6MB in the end (delta: 73.4MB). Free memory was 79.5MB in the beginning and 198.3MB in the end (delta: -118.9MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.16ms. Allocated memory is still 228.6MB. Free memory was 198.3MB in the beginning and 197.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 313.71ms. Allocated memory is still 228.6MB. Free memory was 196.2MB in the beginning and 183.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 214.04ms. Allocated memory is still 228.6MB. Free memory was 183.7MB in the beginning and 163.7MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-21 19:12:26,327 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