./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/trex03-2.c --full-output --witness-type correctness_witness --validate ../results/cpachecker-verification-files/SV-COMP24_unreach-call/trex03-2.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/loops/trex03-2.c ../results/cpachecker-verification-files/SV-COMP24_unreach-call/trex03-2.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 19:06:11,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:06:11,909 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 19:06:11,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:06:11,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:06:11,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:06:11,943 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:06:11,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:06:11,945 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:06:11,948 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:06:11,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:06:11,949 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:06:11,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:06:11,950 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:06:11,950 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:06:11,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:06:11,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:06:11,951 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:06:11,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 19:06:11,952 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:06:11,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:06:11,953 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:06:11,953 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:06:11,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:06:11,955 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:06:11,955 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:06:11,955 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:06:11,955 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:06:11,956 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:06:11,956 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:06:11,956 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:06:11,956 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:06:11,956 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:06:11,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:06:11,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:06:11,957 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:06:11,957 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:06:11,958 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 19:06:11,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 19:06:11,958 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:06:11,958 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:06:11,960 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:06:11,960 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:06:11,960 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:06:12,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:06:12,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:06:12,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:06:12,231 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:06:12,232 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:06:12,233 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/trex03-2.yml/output/witness-2.1.yml [2024-09-21 19:06:12,307 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:06:12,308 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:06:12,308 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loops/trex03-2.c [2024-09-21 19:06:13,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:06:13,890 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:06:13,890 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/trex03-2.c [2024-09-21 19:06:13,896 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/0b3b4828c/b72b0c4f1c864b8a8005d02bd4bc51c0/FLAG49d00e0a3 [2024-09-21 19:06:14,298 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/0b3b4828c/b72b0c4f1c864b8a8005d02bd4bc51c0 [2024-09-21 19:06:14,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:06:14,300 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:06:14,301 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:06:14,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:06:14,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:06:14,307 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 07:06:12" (1/2) ... [2024-09-21 19:06:14,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65453876 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:06:14, skipping insertion in model container [2024-09-21 19:06:14,308 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 07:06:12" (1/2) ... [2024-09-21 19:06:14,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@37d8c772 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:06:14, skipping insertion in model container [2024-09-21 19:06:14,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:06:14" (2/2) ... [2024-09-21 19:06:14,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65453876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:14, skipping insertion in model container [2024-09-21 19:06:14,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:06:14" (2/2) ... [2024-09-21 19:06:14,320 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:06:14,320 INFO L1541 ArrayList]: Loop invariant at [L20-L27] 1 [2024-09-21 19:06:14,321 INFO L1541 ArrayList]: Function contract at [L14]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:06:14,321 INFO L1541 ArrayList]: Function contract at [L5]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:06:14,342 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:06:14,529 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/loops/trex03-2.c[320,333] [2024-09-21 19:06:14,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:06:14,568 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-21 19:06:14,603 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/loops/trex03-2.c[320,333] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-21 19:06:14,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:06:14,630 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:06:14,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:14 WrapperNode [2024-09-21 19:06:14,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:06:14,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:06:14,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:06:14,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:06:14,644 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:14" (1/1) ... [2024-09-21 19:06:14,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:14" (1/1) ... [2024-09-21 19:06:14,651 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:14" (1/1) ... [2024-09-21 19:06:14,663 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-21 19:06:14,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:14" (1/1) ... [2024-09-21 19:06:14,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:14" (1/1) ... [2024-09-21 19:06:14,669 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:14" (1/1) ... [2024-09-21 19:06:14,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:14" (1/1) ... [2024-09-21 19:06:14,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:14" (1/1) ... [2024-09-21 19:06:14,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:14" (1/1) ... [2024-09-21 19:06:14,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:06:14,682 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:06:14,682 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:06:14,682 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:06:14,683 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:14" (1/1) ... [2024-09-21 19:06:14,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:06:14,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:06:14,713 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 19:06:14,719 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 19:06:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:06:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:06:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:06:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-21 19:06:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:06:14,770 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:06:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:06:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:06:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:06:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:06:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-21 19:06:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2024-09-21 19:06:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:06:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:06:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-21 19:06:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:06:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-21 19:06:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-21 19:06:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:06:14,845 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:06:14,849 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:06:14,871 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:06:14,955 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:06:14,962 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:06:14,988 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:06:14,989 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-21 19:06:14,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:06:14 BoogieIcfgContainer [2024-09-21 19:06:14,989 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:06:14,990 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:06:14,990 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:06:14,991 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:06:14,992 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 07:06:12" (1/4) ... [2024-09-21 19:06:14,992 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@344a8068 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:06:14, skipping insertion in model container [2024-09-21 19:06:14,993 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:06:14" (2/4) ... [2024-09-21 19:06:14,994 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@344a8068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:06:14, skipping insertion in model container [2024-09-21 19:06:14,994 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:14" (3/4) ... [2024-09-21 19:06:14,994 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@344a8068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:06:14, skipping insertion in model container [2024-09-21 19:06:14,994 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:06:14" (4/4) ... [2024-09-21 19:06:14,996 INFO L79 RefereeObserver]: Analyzing ICFG trex03-2.c [2024-09-21 19:06:15,000 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-21 19:06:15,001 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L20-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-21 19:06:15,002 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L20-3 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 6 edges. [2024-09-21 19:06:15,003 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 19:06:15,003 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-21 19:06:15,004 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L20-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-21 19:06:15,004 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 19:06:15,004 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 19:06:15,005 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 2 loop-free subgraphs from loop head to error location, 3 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head [2024-09-21 19:06:15,066 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-21 19:06:15,067 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:15,068 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:15,070 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:15,071 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:15,073 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:15,092 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-21 19:06:15,093 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:15,093 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:15,093 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:15,094 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:15,100 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:15,115 INFO L520 InvariantChecker]: The annotation(s) from loop head L20-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:06:15,144 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-21 19:06:15,148 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:15,148 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:15,148 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:15,148 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:15,149 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:15,166 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-21 19:06:15,166 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:15,166 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:15,166 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:15,166 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:15,167 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:15,171 INFO L520 InvariantChecker]: The annotation(s) from loop head L20-3 to error location mainErr2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:06:15,190 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:06:15,191 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:15,191 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:15,191 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:15,191 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:15,192 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:15,192 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:06:15,192 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:15,193 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:15,193 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:15,193 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:15,193 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:15,198 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:06:15,223 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:06:15,223 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:15,223 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:15,227 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:15,227 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:15,228 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:15,229 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:06:15,230 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:15,230 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:15,230 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:15,230 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:15,230 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:15,235 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-21 19:06:15,258 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-21 19:06:15,258 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:15,260 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:15,260 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:15,260 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:15,260 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:15,298 INFO L101 BaseMinimizeStates]: Removed 16 edges and 5 locations by large block encoding [2024-09-21 19:06:15,298 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:15,299 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:15,299 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:15,299 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:15,301 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:15,306 INFO L520 InvariantChecker]: The annotation(s) from loop head L20-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-21 19:06:15,327 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-21 19:06:15,328 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:15,328 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:15,328 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:15,331 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:15,331 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:15,334 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 19:06:15,335 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:15,335 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:15,335 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:15,336 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:15,336 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:15,342 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:06:15,350 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:06:15,350 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:15,350 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:15,350 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:15,350 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:15,351 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:15,353 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:06:15,353 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:15,353 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:15,353 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:15,353 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:15,354 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:15,366 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-21 19:06:15,366 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@344a8068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 21.09 07:06:15, skipping insertion in model container [2024-09-21 19:06:15,367 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-21 19:06:15,368 INFO L158 Benchmark]: Toolchain (without parser) took 1067.76ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 57.7MB in the beginning and 103.7MB in the end (delta: -45.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:06:15,369 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:06:15,369 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 130.0MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:06:15,370 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.38ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 57.6MB in the beginning and 141.4MB in the end (delta: -83.9MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2024-09-21 19:06:15,370 INFO L158 Benchmark]: Boogie Preprocessor took 49.01ms. Allocated memory is still 172.0MB. Free memory was 141.4MB in the beginning and 139.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 19:06:15,371 INFO L158 Benchmark]: RCFGBuilder took 307.77ms. Allocated memory is still 172.0MB. Free memory was 139.2MB in the beginning and 125.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 19:06:15,371 INFO L158 Benchmark]: Referee took 376.70ms. Allocated memory is still 172.0MB. Free memory was 125.6MB in the beginning and 103.7MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-09-21 19:06:15,374 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is not a valid proof of correctness. Annotation is not a valid proof of correctness. Annotation is not valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 7. One counterexample starts in \old(cond)=0 and ends in \old(cond)=0, cond=0. Annotation is valid for all loop-free paths from loop head at line 20 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 loop head at line 20 to loop head at line 20. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 20. Annotation is valid for all loop-free paths from entry of procedure ULTIMATE.start to check that procedure precondition always holds at line -1. Annotation is valid for all loop-free paths from loop head at line 20 to check that procedure precondition always holds at line 20. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 130.0MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.38ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 57.6MB in the beginning and 141.4MB in the end (delta: -83.9MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.01ms. Allocated memory is still 172.0MB. Free memory was 141.4MB in the beginning and 139.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 307.77ms. Allocated memory is still 172.0MB. Free memory was 139.2MB in the beginning and 125.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 376.70ms. Allocated memory is still 172.0MB. Free memory was 125.6MB in the beginning and 103.7MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-21 19:06:15,407 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