This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 19:07:34,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:07:34,909 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 19:07:34,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:07:34,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:07:34,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:07:34,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:07:34,941 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:07:34,942 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:07:34,943 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:07:34,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:07:34,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:07:34,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:07:34,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:07:34,947 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:07:34,947 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:07:34,948 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:07:34,948 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:07:34,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 19:07:34,949 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:07:34,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:07:34,953 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:07:34,953 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:07:34,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:07:34,954 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:07:34,954 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:07:34,954 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:07:34,954 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:07:34,955 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:07:34,955 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:07:34,955 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:07:34,955 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:07:34,956 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:07:34,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:34,956 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:07:34,956 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:07:34,956 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:07:34,957 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 19:07:34,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 19:07:34,957 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:07:34,959 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:07:34,960 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:07:34,960 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:07:34,961 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:07:35,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:07:35,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:07:35,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:07:35,212 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:07:35,213 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:07:35,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loops-crafted-1/iftelse.c [2024-09-21 19:07:36,703 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:07:36,899 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:07:36,900 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/iftelse.c [2024-09-21 19:07:36,906 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/fcd2ca375/1770d113d1274244b3f055bb89d3f16d/FLAG912f26917 [2024-09-21 19:07:36,922 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/fcd2ca375/1770d113d1274244b3f055bb89d3f16d [2024-09-21 19:07:36,925 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:07:36,927 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:07:36,928 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/iftelse.yml/output/witness-2.1.yml [2024-09-21 19:07:36,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:07:36,980 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:07:36,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:36,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:07:36,988 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:07:36,989 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:36" (1/2) ... [2024-09-21 19:07:36,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:36, skipping insertion in model container [2024-09-21 19:07:36,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:36" (1/2) ... [2024-09-21 19:07:36,993 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2b0067df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:36, skipping insertion in model container [2024-09-21 19:07:36,993 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 07:07:36" (2/2) ... [2024-09-21 19:07:36,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae0ea and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:36, skipping insertion in model container [2024-09-21 19:07:36,994 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 07:07:36" (2/2) ... [2024-09-21 19:07:37,005 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:07:37,005 INFO L1541 ArrayList]: Loop invariant at [L22-L30] 1 [2024-09-21 19:07:37,005 INFO L1541 ArrayList]: Function contract at [L4]: requires 1, ensures 1 [2024-09-21 19:07:37,005 INFO L1541 ArrayList]: Function contract at [L9]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:07:37,005 INFO L1541 ArrayList]: Function contract at [L17]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:07:37,026 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:07:37,189 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-crafted-1/iftelse.c[406,419] [2024-09-21 19:07:37,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:37,233 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-21 19:07:37,275 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-crafted-1/iftelse.c[406,419] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-21 19:07:37,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:37,299 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:07:37,300 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:37 WrapperNode [2024-09-21 19:07:37,300 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:37,301 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:07:37,302 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:07:37,302 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:07:37,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,320 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,334 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure reach_error is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-21 19:07:37,334 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,335 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,337 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,341 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,344 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:07:37,345 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:07:37,345 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:07:37,345 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:07:37,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:37" (1/1) ... [2024-09-21 19:07:37,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:37,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:07:37,375 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 19:07:37,377 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 19:07:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:07:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:07:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:07:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 19:07:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-21 19:07:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:07:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:07:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:07:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:07:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:07:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 19:07:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:07:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-21 19:07:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:07:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:07:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-21 19:07:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:07:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-21 19:07:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-21 19:07:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:07:37,480 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:07:37,482 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:07:37,487 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:37,521 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:37,582 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:37,592 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:07:37,617 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:07:37,617 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-21 19:07:37,620 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:37 BoogieIcfgContainer [2024-09-21 19:07:37,620 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:07:37,621 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:07:37,621 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:07:37,626 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:07:37,627 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:07:36" (1/4) ... [2024-09-21 19:07:37,628 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@136e6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:37, skipping insertion in model container [2024-09-21 19:07:37,628 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 07:07:36" (2/4) ... [2024-09-21 19:07:37,628 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@136e6ab and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:37, skipping insertion in model container [2024-09-21 19:07:37,628 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:37" (3/4) ... [2024-09-21 19:07:37,629 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@136e6ab and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:37, skipping insertion in model container [2024-09-21 19:07:37,629 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:37" (4/4) ... [2024-09-21 19:07:37,630 INFO L79 RefereeObserver]: Analyzing ICFG iftelse.c [2024-09-21 19:07:37,633 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-21 19:07:37,633 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L28 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 6 edges. [2024-09-21 19:07:37,634 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-21 19:07:37,634 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L28 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-21 19:07:37,634 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 3 edges. [2024-09-21 19:07:37,634 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L28 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-21 19:07:37,634 INFO L373 InvariantChecker]: Will check inductivity from ENTRY reach_errorENTRY to ERROR_LOC reach_errorErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:07:37,634 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 19:07:37,634 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 19:07:37,634 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 19:07:37,635 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from loop head to error location, 5 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from loop head to loop head [2024-09-21 19:07:37,670 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-21 19:07:37,671 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:37,672 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:37,672 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:37,674 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:37,675 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,701 INFO L101 BaseMinimizeStates]: Removed 11 edges and 4 locations by large block encoding [2024-09-21 19:07:37,702 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,703 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:37,703 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:37,704 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:37,708 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:37,728 INFO L520 InvariantChecker]: The annotation(s) from loop head L28 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:07:37,746 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:07:37,746 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:37,746 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:37,746 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:37,746 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:37,746 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,753 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:07:37,754 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,754 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:37,754 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:37,754 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:37,754 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:37,761 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-21 19:07:37,777 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-21 19:07:37,777 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:37,778 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:37,778 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:37,778 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:37,778 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,816 INFO L101 BaseMinimizeStates]: Removed 16 edges and 5 locations by large block encoding [2024-09-21 19:07:37,816 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,816 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:37,816 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:37,816 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:37,817 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:37,819 INFO L520 InvariantChecker]: The annotation(s) from loop head L28 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-21 19:07:37,826 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:07:37,826 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:37,826 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:37,827 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:37,827 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:37,827 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,829 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:07:37,830 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,830 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:37,830 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:37,830 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:37,831 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:37,832 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:07:37,846 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-21 19:07:37,847 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:37,847 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:37,847 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:37,847 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:37,851 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,854 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-21 19:07:37,854 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,854 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:37,854 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:37,855 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:37,855 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:37,865 INFO L520 InvariantChecker]: The annotation(s) from loop head L28 to error location mainErr2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:07:37,876 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:07:37,877 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:37,877 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:37,877 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:37,877 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:37,877 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,878 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:07:37,878 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,878 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:37,878 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:37,878 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:37,879 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:37,882 INFO L520 InvariantChecker]: The annotation(s) from entry reach_errorENTRY to error location reach_errorErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:07:37,887 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:07:37,890 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:37,891 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:37,891 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:37,891 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:37,892 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,893 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:07:37,893 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,893 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:37,894 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:37,894 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:37,894 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:37,896 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:07:37,904 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-21 19:07:37,904 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:37,905 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:37,905 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:37,905 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:37,905 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,909 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 19:07:37,911 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,911 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:37,911 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:37,911 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:37,912 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:37,917 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:07:37,927 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:07:37,927 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:37,927 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:37,927 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:37,927 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:37,927 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,928 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:07:37,928 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:37,929 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:37,929 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:37,929 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:37,929 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:37,944 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-21 19:07:37,945 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@136e6ab and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 21.09 07:07:37, skipping insertion in model container [2024-09-21 19:07:37,945 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-21 19:07:37,948 INFO L158 Benchmark]: Toolchain (without parser) took 966.07ms. Allocated memory is still 180.4MB. Free memory was 110.0MB in the beginning and 113.4MB in the end (delta: -3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:37,949 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:37,949 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 180.4MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:37,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.86ms. Allocated memory is still 180.4MB. Free memory was 109.7MB in the beginning and 149.8MB in the end (delta: -40.1MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-09-21 19:07:37,951 INFO L158 Benchmark]: Boogie Preprocessor took 42.56ms. Allocated memory is still 180.4MB. Free memory was 149.8MB in the beginning and 147.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 19:07:37,952 INFO L158 Benchmark]: RCFGBuilder took 275.67ms. Allocated memory is still 180.4MB. Free memory was 147.7MB in the beginning and 135.8MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-21 19:07:37,953 INFO L158 Benchmark]: Referee took 324.64ms. Allocated memory is still 180.4MB. Free memory was 135.8MB in the beginning and 113.4MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-09-21 19:07:37,956 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 11. 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 22 to exit of procedure main. Annotation is valid for all loop-free paths from entry of procedure main to exit of procedure main. Annotation is valid for all loop-free paths from entry of procedure reach_error to exit of procedure reach_error. Annotation is valid for all loop-free paths from loop head at line 22 to loop head at line 22. 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 22 to check that procedure precondition always holds at line 29. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 22. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.10ms. Allocated memory is still 180.4MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.86ms. Allocated memory is still 180.4MB. Free memory was 109.7MB in the beginning and 149.8MB in the end (delta: -40.1MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.56ms. Allocated memory is still 180.4MB. Free memory was 149.8MB in the beginning and 147.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 275.67ms. Allocated memory is still 180.4MB. Free memory was 147.7MB in the beginning and 135.8MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 324.64ms. Allocated memory is still 180.4MB. Free memory was 135.8MB in the beginning and 113.4MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-21 19:07:37,989 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...