./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-simple/nested_4.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/nested_4.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/loop-simple/nested_4.c ../results/automizer-verification-files/SV-COMP24_unreach-call/nested_4.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 20:47:43,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:47:43,628 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:47:43,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:47:43,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:47:43,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:47:43,660 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:47:43,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:47:43,661 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:47:43,662 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:47:43,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:47:43,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:47:43,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:47:43,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:47:43,665 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:47:43,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:47:43,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:47:43,666 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:47:43,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:47:43,667 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:47:43,667 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:47:43,667 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:47:43,670 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:47:43,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:47:43,670 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:47:43,670 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:47:43,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:47:43,671 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:47:43,671 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:47:43,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:47:43,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:47:43,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:47:43,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:43,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:47:43,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:47:43,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:47:43,672 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:47:43,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:47:43,673 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:47:43,673 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:47:43,673 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:47:43,674 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:47:43,674 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:47:43,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:47:43,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:47:43,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:47:43,896 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:47:43,897 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:47:43,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/nested_4.yml/witness-2.1.yml [2024-09-11 20:47:43,967 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:47:43,971 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:47:43,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-simple/nested_4.c [2024-09-11 20:47:45,252 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:47:45,410 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:47:45,410 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-simple/nested_4.c [2024-09-11 20:47:45,417 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/4f6389621/af5e77d67449488badd344667fcc2a8f/FLAGaab46b9c9 [2024-09-11 20:47:45,433 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/4f6389621/af5e77d67449488badd344667fcc2a8f [2024-09-11 20:47:45,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:47:45,434 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:47:45,442 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:45,442 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:47:45,447 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:47:45,450 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 08:47:43" (1/2) ... [2024-09-11 20:47:45,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@239a3b3e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:45, skipping insertion in model container [2024-09-11 20:47:45,451 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 08:47:43" (1/2) ... [2024-09-11 20:47:45,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@31ed075b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:45, skipping insertion in model container [2024-09-11 20:47:45,453 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:45" (2/2) ... [2024-09-11 20:47:45,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@239a3b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:45, skipping insertion in model container [2024-09-11 20:47:45,453 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:45" (2/2) ... [2024-09-11 20:47:45,459 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:47:45,460 INFO L1541 ArrayList]: Loop invariant at [L23-L29] ((((a <= 5) && (6 == d)) && (b <= 6)) && (6 == c)) [2024-09-11 20:47:45,460 INFO L1541 ArrayList]: Loop invariant at [L22-L30] ((((a <= 6) && (6 == b)) && (6 == d)) && (6 == c)) [2024-09-11 20:47:45,460 INFO L1541 ArrayList]: Loop invariant at [L24-L28] (((((((((a <= 5) && (b <= 5)) && (2 == c)) || (((a <= 5) && (5 == c)) && (b <= 5))) || (((a <= 5) && (b <= 5)) && (3 == c))) || (((c == 0) && (a <= 5)) && (b <= 5))) || (((a <= 5) && (b <= 5)) && (c == 4))) || (((c == 1) && (a <= 5)) && (b <= 5))) || ((((a <= 5) && (b <= 5)) && (6 == d)) && (6 == c))) [2024-09-11 20:47:45,460 INFO L1541 ArrayList]: Loop invariant at [L25-L27] ((((((((((((((a <= 5) && (b <= 5)) && (2 == c)) || ((((a <= 5) && (5 == c)) && (b <= 5)) && (3 == d))) || ((((d == 1) && (a <= 5)) && (5 == c)) && (b <= 5))) || (((a <= 5) && (b <= 5)) && (3 == c))) || ((((a <= 5) && (5 == c)) && (b <= 5)) && (2 == d))) || (((c == 0) && (a <= 5)) && (b <= 5))) || ((((a <= 5) && (5 == c)) && (b <= 5)) && (d == 4))) || (((a <= 5) && (b <= 5)) && (c == 4))) || (((c == 1) && (a <= 5)) && (b <= 5))) || ((((a <= 5) && (5 == c)) && (b <= 5)) && (6 == d))) || ((((a <= 5) && (5 == c)) && (b <= 5)) && (d == 0))) || ((((5 == d) && (a <= 5)) && (5 == c)) && (b <= 5))) [2024-09-11 20:47:45,475 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:47:45,605 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/loop-simple/nested_4.c[841,854] [2024-09-11 20:47:45,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:45,625 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-11 20:47:45,676 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/loop-simple/nested_4.c[841,854] [2024-09-11 20:47:45,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:45,689 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:47:45,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:45 WrapperNode [2024-09-11 20:47:45,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:45,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:47:45,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:47:45,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:47:45,700 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:45" (1/1) ... [2024-09-11 20:47:45,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:45" (1/1) ... [2024-09-11 20:47:45,709 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:45" (1/1) ... [2024-09-11 20:47:45,732 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-11 20:47:45,732 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:45" (1/1) ... [2024-09-11 20:47:45,732 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:45" (1/1) ... [2024-09-11 20:47:45,736 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:45" (1/1) ... [2024-09-11 20:47:45,742 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:45" (1/1) ... [2024-09-11 20:47:45,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:45" (1/1) ... [2024-09-11 20:47:45,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:45" (1/1) ... [2024-09-11 20:47:45,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:47:45,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:47:45,750 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:47:45,750 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:47:45,751 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:45" (1/1) ... [2024-09-11 20:47:45,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:45,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:47:45,782 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 20:47:45,816 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 20:47:45,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:47:45,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:47:45,893 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:47:45,893 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:47:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:47:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:47:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:47:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:47:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:47:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-11 20:47:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:47:45,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-11 20:47:45,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-11 20:47:45,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:47:45,957 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:47:45,960 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:47:46,124 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-09-11 20:47:46,124 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:47:46,144 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:47:46,145 INFO L318 CfgBuilder]: Removed 4 assume(true) statements. [2024-09-11 20:47:46,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:46 BoogieIcfgContainer [2024-09-11 20:47:46,145 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:47:46,146 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:47:46,146 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:47:46,146 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:47:46,147 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 08:47:43" (1/4) ... [2024-09-11 20:47:46,147 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@24f7c61 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:47:46, skipping insertion in model container [2024-09-11 20:47:46,147 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:47:45" (2/4) ... [2024-09-11 20:47:46,147 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@24f7c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:47:46, skipping insertion in model container [2024-09-11 20:47:46,147 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:45" (3/4) ... [2024-09-11 20:47:46,148 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@24f7c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:47:46, skipping insertion in model container [2024-09-11 20:47:46,148 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:46" (4/4) ... [2024-09-11 20:47:46,149 INFO L79 RefereeObserver]: Analyzing ICFG nested_4.c [2024-09-11 20:47:46,152 INFO L112 InvariantChecker]: Found 4 loops. [2024-09-11 20:47:46,152 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-11 20:47:46,153 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-11 20:47:46,153 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L22-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-11 20:47:46,153 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-11 20:47:46,153 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-4 to LOOP_INVARIANT_ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-11 20:47:46,153 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L25-4 to LOOP_INVARIANT_ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-11 20:47:46,157 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L22-4 to ERROR_LOC mainErr4ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 5 edges. [2024-09-11 20:47:46,157 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-4 to LOOP_INVARIANT_ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-11 20:47:46,157 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L25-4 to LOOP_INVARIANT_ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-11 20:47:46,158 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from procedure entry to loop head, 7 loop-free subgraphs from loop head to loop head [2024-09-11 20:47:46,188 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-11 20:47:46,189 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:46,189 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:46,190 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:46,193 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:46,195 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,201 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-11 20:47:46,202 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,202 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:46,203 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:46,203 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:46,203 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:46,215 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:46,230 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:47:46,230 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:46,230 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:46,231 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:46,231 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:46,231 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,235 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-11 20:47:46,236 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,236 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:46,236 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:46,236 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:46,239 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:46,241 INFO L514 InvariantChecker]: The annotation(s) from loop head L23-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:46,250 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:47:46,250 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:46,250 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:46,250 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:46,250 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:46,251 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,253 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:47:46,253 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,253 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:46,253 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:46,253 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:46,254 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:46,255 INFO L514 InvariantChecker]: The annotation(s) from loop head L22-4 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:46,262 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:47:46,262 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:46,262 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:46,263 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:46,263 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:46,263 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,268 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-11 20:47:46,268 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,268 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:46,268 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:46,268 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:46,270 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:46,272 INFO L514 InvariantChecker]: The annotation(s) from loop head L24-4 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:46,279 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:47:46,279 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:46,279 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:46,279 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:46,280 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:46,280 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,282 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:47:46,282 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,283 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:46,283 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:46,283 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:46,283 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:46,285 INFO L514 InvariantChecker]: The annotation(s) from loop head L23-4 to loop head mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:46,292 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:47:46,292 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:46,292 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:46,292 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:46,292 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:46,292 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,299 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-11 20:47:46,299 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,299 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:46,300 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:46,300 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:46,302 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:46,305 INFO L514 InvariantChecker]: The annotation(s) from loop head L25-4 to loop head mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:46,310 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:47:46,311 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:46,311 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:46,311 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:46,311 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:46,311 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,314 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-11 20:47:46,314 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,314 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:46,315 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:46,315 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:46,315 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:46,317 INFO L514 InvariantChecker]: The annotation(s) from loop head L22-4 to error location mainErr4ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:47:46,322 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:47:46,322 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:46,323 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:46,323 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:46,323 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:46,323 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,327 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:47:46,327 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,327 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:46,327 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:46,327 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:46,328 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:46,330 INFO L514 InvariantChecker]: The annotation(s) from loop head L24-4 to loop head mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:46,336 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:47:46,336 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:46,336 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:46,336 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:46,336 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:46,337 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,341 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:47:46,341 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:46,341 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:46,341 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:46,341 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:46,341 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:46,344 INFO L514 InvariantChecker]: The annotation(s) from loop head L25-4 to loop head mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:46,347 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness [2024-09-11 20:47:46,348 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@24f7c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:47:46, skipping insertion in model container [2024-09-11 20:47:46,349 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:47:46,350 INFO L158 Benchmark]: Toolchain (without parser) took 915.42ms. Allocated memory is still 167.8MB. Free memory was 95.4MB in the beginning and 92.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-09-11 20:47:46,351 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:46,351 INFO L158 Benchmark]: CDTParser took 1.23ms. Allocated memory is still 167.8MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:46,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.96ms. Allocated memory is still 167.8MB. Free memory was 95.2MB in the beginning and 81.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:47:46,352 INFO L158 Benchmark]: Boogie Preprocessor took 59.28ms. Allocated memory is still 167.8MB. Free memory was 81.7MB in the beginning and 79.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:47:46,352 INFO L158 Benchmark]: RCFGBuilder took 395.32ms. Allocated memory is still 167.8MB. Free memory was 79.4MB in the beginning and 125.5MB in the end (delta: -46.1MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2024-09-11 20:47:46,353 INFO L158 Benchmark]: Referee took 203.18ms. Allocated memory is still 167.8MB. Free memory was 125.5MB in the beginning and 92.6MB in the end (delta: 32.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-09-11 20:47:46,354 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness Annotation is a valid proof of correctness Annotation is valid for all loop-free paths from loop head at line 23 to loop head at line 22. Annotation is valid for all loop-free paths from loop head at line 23 to loop head at line 24. Annotation is valid for all loop-free paths from loop head at line 22 to loop head at line 23. Annotation is valid for all loop-free paths from loop head at line 22 to check that a call to reach_error is unreachable at line 32. Annotation is valid for all loop-free paths from loop head at line 24 to loop head at line 25. Annotation is valid for all loop-free paths from loop head at line 25 to loop head at line 25. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 22. Annotation is valid for all loop-free paths from loop head at line 24 to loop head at line 23. Annotation is valid for all loop-free paths from loop head at line 25 to loop head at line 24. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 1.23ms. Allocated memory is still 167.8MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.96ms. Allocated memory is still 167.8MB. Free memory was 95.2MB in the beginning and 81.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.28ms. Allocated memory is still 167.8MB. Free memory was 81.7MB in the beginning and 79.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.32ms. Allocated memory is still 167.8MB. Free memory was 79.4MB in the beginning and 125.5MB in the end (delta: -46.1MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * Referee took 203.18ms. Allocated memory is still 167.8MB. Free memory was 125.5MB in the beginning and 92.6MB in the end (delta: 32.9MB). 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 20:47:46,377 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-simple/nested_4.c ../results/automizer-verification-files/SV-COMP24_unreach-call/nested_4.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.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 20:47:49,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:47:49,179 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-11 20:47:49,182 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:47:49,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:47:49,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:47:49,223 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:47:49,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:47:49,223 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:47:49,224 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:47:49,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:47:49,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:47:49,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:47:49,227 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:47:49,228 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:47:49,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:47:49,228 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:47:49,228 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:47:49,229 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:47:49,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:47:49,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:47:49,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:47:49,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:47:49,234 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-11 20:47:49,234 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-11 20:47:49,234 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:47:49,235 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-11 20:47:49,235 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:47:49,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:47:49,235 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:47:49,236 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:47:49,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:47:49,236 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:47:49,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:47:49,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:49,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:47:49,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:47:49,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:47:49,237 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-11 20:47:49,237 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-11 20:47:49,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:47:49,239 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:47:49,239 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:47:49,240 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:47:49,240 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-11 20:47:49,240 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:47:49,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:47:49,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:47:49,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:47:49,541 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:47:49,541 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:47:49,542 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/nested_4.yml/witness-2.1.yml [2024-09-11 20:47:49,601 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:47:49,601 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:47:49,602 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-simple/nested_4.c [2024-09-11 20:47:51,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:47:51,440 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:47:51,440 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-simple/nested_4.c [2024-09-11 20:47:51,446 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/9b946b7a6/5521a0e9c6104d689517c5f13e850bc0/FLAGa19d9f027 [2024-09-11 20:47:51,461 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/9b946b7a6/5521a0e9c6104d689517c5f13e850bc0 [2024-09-11 20:47:51,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:47:51,463 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:47:51,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:51,466 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:47:51,470 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:47:51,471 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 08:47:49" (1/2) ... [2024-09-11 20:47:51,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71bd19da and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:51, skipping insertion in model container [2024-09-11 20:47:51,473 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 08:47:49" (1/2) ... [2024-09-11 20:47:51,474 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@756aaff9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:51, skipping insertion in model container [2024-09-11 20:47:51,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:51" (2/2) ... [2024-09-11 20:47:51,474 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71bd19da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:51, skipping insertion in model container [2024-09-11 20:47:51,474 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:51" (2/2) ... [2024-09-11 20:47:51,486 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:47:51,487 INFO L1541 ArrayList]: Loop invariant at [L25-L27] ((((((((((((((a <= 5) && (b <= 5)) && (2 == c)) || ((((a <= 5) && (5 == c)) && (b <= 5)) && (3 == d))) || ((((d == 1) && (a <= 5)) && (5 == c)) && (b <= 5))) || (((a <= 5) && (b <= 5)) && (3 == c))) || ((((a <= 5) && (5 == c)) && (b <= 5)) && (2 == d))) || (((c == 0) && (a <= 5)) && (b <= 5))) || ((((a <= 5) && (5 == c)) && (b <= 5)) && (d == 4))) || (((a <= 5) && (b <= 5)) && (c == 4))) || (((c == 1) && (a <= 5)) && (b <= 5))) || ((((a <= 5) && (5 == c)) && (b <= 5)) && (6 == d))) || ((((a <= 5) && (5 == c)) && (b <= 5)) && (d == 0))) || ((((5 == d) && (a <= 5)) && (5 == c)) && (b <= 5))) [2024-09-11 20:47:51,487 INFO L1541 ArrayList]: Loop invariant at [L24-L28] (((((((((a <= 5) && (b <= 5)) && (2 == c)) || (((a <= 5) && (5 == c)) && (b <= 5))) || (((a <= 5) && (b <= 5)) && (3 == c))) || (((c == 0) && (a <= 5)) && (b <= 5))) || (((a <= 5) && (b <= 5)) && (c == 4))) || (((c == 1) && (a <= 5)) && (b <= 5))) || ((((a <= 5) && (b <= 5)) && (6 == d)) && (6 == c))) [2024-09-11 20:47:51,487 INFO L1541 ArrayList]: Loop invariant at [L22-L30] ((((a <= 6) && (6 == b)) && (6 == d)) && (6 == c)) [2024-09-11 20:47:51,487 INFO L1541 ArrayList]: Loop invariant at [L23-L29] ((((a <= 5) && (6 == d)) && (b <= 6)) && (6 == c)) [2024-09-11 20:47:51,501 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:47:51,631 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/loop-simple/nested_4.c[841,854] [2024-09-11 20:47:51,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:51,653 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-11 20:47:51,710 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/loop-simple/nested_4.c[841,854] [2024-09-11 20:47:51,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:51,730 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:47:51,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:51 WrapperNode [2024-09-11 20:47:51,731 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:51,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:47:51,732 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:47:51,732 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:47:51,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:51" (1/1) ... [2024-09-11 20:47:51,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:51" (1/1) ... [2024-09-11 20:47:51,756 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:51" (1/1) ... [2024-09-11 20:47:51,773 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-11 20:47:51,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:51" (1/1) ... [2024-09-11 20:47:51,774 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:51" (1/1) ... [2024-09-11 20:47:51,783 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:51" (1/1) ... [2024-09-11 20:47:51,787 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:51" (1/1) ... [2024-09-11 20:47:51,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:51" (1/1) ... [2024-09-11 20:47:51,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:51" (1/1) ... [2024-09-11 20:47:51,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:47:51,796 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:47:51,797 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:47:51,797 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:47:51,797 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:51" (1/1) ... [2024-09-11 20:47:51,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:51,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:47:51,825 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 20:47:51,836 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 20:47:51,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:47:51,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:47:51,877 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:47:51,878 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:47:51,878 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:47:51,878 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:47:51,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:47:51,878 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:47:51,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:47:51,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-11 20:47:51,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:47:51,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-11 20:47:51,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-11 20:47:51,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:47:51,933 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:47:51,935 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:47:52,138 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-09-11 20:47:52,138 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:47:52,166 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:47:52,167 INFO L318 CfgBuilder]: Removed 4 assume(true) statements. [2024-09-11 20:47:52,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:52 BoogieIcfgContainer [2024-09-11 20:47:52,167 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:47:52,168 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:47:52,168 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:47:52,169 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:47:52,169 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 08:47:49" (1/4) ... [2024-09-11 20:47:52,169 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@551ea3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:47:52, skipping insertion in model container [2024-09-11 20:47:52,169 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:47:51" (2/4) ... [2024-09-11 20:47:52,169 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@551ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:47:52, skipping insertion in model container [2024-09-11 20:47:52,170 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:51" (3/4) ... [2024-09-11 20:47:52,170 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@551ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:47:52, skipping insertion in model container [2024-09-11 20:47:52,170 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:52" (4/4) ... [2024-09-11 20:47:52,171 INFO L79 RefereeObserver]: Analyzing ICFG nested_4.c [2024-09-11 20:47:52,174 INFO L112 InvariantChecker]: Found 4 loops. [2024-09-11 20:47:52,174 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-11 20:47:52,175 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-11 20:47:52,175 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L22-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-11 20:47:52,175 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-11 20:47:52,175 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-4 to LOOP_INVARIANT_ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-11 20:47:52,175 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L25-4 to LOOP_INVARIANT_ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-11 20:47:52,175 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L22-4 to ERROR_LOC mainErr4ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 5 edges. [2024-09-11 20:47:52,175 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-4 to LOOP_INVARIANT_ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-11 20:47:52,176 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L25-4 to LOOP_INVARIANT_ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-11 20:47:52,176 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from loop head to error location, 7 loop-free subgraphs from loop head to loop head [2024-09-11 20:47:52,214 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-11 20:47:52,215 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:52,215 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:52,216 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:52,219 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:52,220 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,241 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-11 20:47:52,242 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,242 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:52,242 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:52,243 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:52,243 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:52,263 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:52,283 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:47:52,283 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:52,283 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:52,283 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:52,283 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:52,283 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,291 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-11 20:47:52,295 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,295 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:52,296 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:52,296 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:52,302 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:52,309 INFO L514 InvariantChecker]: The annotation(s) from loop head L23-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:52,323 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:47:52,323 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:52,323 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:52,323 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:52,324 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:52,324 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,326 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:47:52,326 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,327 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:52,327 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:52,327 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:52,327 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:52,329 INFO L514 InvariantChecker]: The annotation(s) from loop head L22-4 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:52,348 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:47:52,348 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:52,348 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:52,348 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:52,349 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:52,349 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,355 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-11 20:47:52,356 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,356 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:52,356 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:52,356 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:52,363 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:52,367 INFO L514 InvariantChecker]: The annotation(s) from loop head L24-4 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:52,377 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:47:52,377 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:52,377 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:52,378 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:52,378 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:52,378 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,380 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:47:52,381 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,381 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:52,381 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:52,381 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:52,381 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:52,383 INFO L514 InvariantChecker]: The annotation(s) from loop head L23-4 to loop head mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:52,390 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:47:52,391 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:52,391 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:52,391 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:52,392 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:52,392 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,402 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-11 20:47:52,403 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,403 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:52,403 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:52,403 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:52,405 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:52,409 INFO L514 InvariantChecker]: The annotation(s) from loop head L25-4 to loop head mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:52,431 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:47:52,431 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:52,431 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:52,432 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:52,432 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:52,432 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,436 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-11 20:47:52,436 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,437 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:52,437 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:52,437 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:52,438 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:52,442 INFO L514 InvariantChecker]: The annotation(s) from loop head L22-4 to error location mainErr4ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:47:52,453 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:47:52,454 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:52,454 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:52,454 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:52,454 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:52,454 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,458 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:47:52,459 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,459 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:52,459 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:52,459 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:52,460 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:52,463 INFO L514 InvariantChecker]: The annotation(s) from loop head L24-4 to loop head mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:52,472 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:47:52,474 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:52,475 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:52,475 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:52,475 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:52,475 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,482 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:47:52,482 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:52,482 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:52,482 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:52,483 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:52,483 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:47:52,489 INFO L514 InvariantChecker]: The annotation(s) from loop head L25-4 to loop head mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:47:52,492 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness [2024-09-11 20:47:52,492 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@551ea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:47:52, skipping insertion in model container [2024-09-11 20:47:52,492 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:47:52,496 INFO L158 Benchmark]: Toolchain (without parser) took 1030.03ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 51.3MB in the beginning and 55.7MB in the end (delta: -4.4MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2024-09-11 20:47:52,497 INFO L158 Benchmark]: Witness Parser took 0.83ms. Allocated memory is still 44.0MB. Free memory is still 27.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:52,497 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 44.0MB. Free memory is still 24.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:52,497 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.85ms. Allocated memory is still 73.4MB. Free memory was 51.0MB in the beginning and 36.9MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:47:52,498 INFO L158 Benchmark]: Boogie Preprocessor took 63.97ms. Allocated memory is still 73.4MB. Free memory was 36.9MB in the beginning and 34.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:47:52,498 INFO L158 Benchmark]: RCFGBuilder took 370.93ms. Allocated memory is still 73.4MB. Free memory was 34.6MB in the beginning and 37.1MB in the end (delta: -2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-11 20:47:52,499 INFO L158 Benchmark]: Referee took 324.65ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 37.1MB in the beginning and 55.7MB in the end (delta: -18.6MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2024-09-11 20:47:52,501 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness Annotation is a valid proof of correctness Annotation is valid for all loop-free paths from loop head at line 22 to check that a call to reach_error is unreachable at line 32. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 22. Annotation is valid for all loop-free paths from loop head at line 24 to loop head at line 23. Annotation is valid for all loop-free paths from loop head at line 22 to loop head at line 23. Annotation is valid for all loop-free paths from loop head at line 25 to loop head at line 24. Annotation is valid for all loop-free paths from loop head at line 23 to loop head at line 22. Annotation is valid for all loop-free paths from loop head at line 23 to loop head at line 24. Annotation is valid for all loop-free paths from loop head at line 25 to loop head at line 25. Annotation is valid for all loop-free paths from loop head at line 24 to loop head at line 25. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.83ms. Allocated memory is still 44.0MB. Free memory is still 27.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 44.0MB. Free memory is still 24.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.85ms. Allocated memory is still 73.4MB. Free memory was 51.0MB in the beginning and 36.9MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.97ms. Allocated memory is still 73.4MB. Free memory was 36.9MB in the beginning and 34.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 370.93ms. Allocated memory is still 73.4MB. Free memory was 34.6MB in the beginning and 37.1MB in the end (delta: -2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Referee took 324.65ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 37.1MB in the beginning and 55.7MB in the end (delta: -18.6MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:47:52,525 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 Result: UNKNOWN