This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 11:46:37,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:46:37,163 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 11:46:37,170 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:46:37,170 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:46:37,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:46:37,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:46:37,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:46:37,201 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:46:37,202 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:46:37,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:46:37,203 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:46:37,203 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:46:37,205 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:46:37,206 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:46:37,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:46:37,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:46:37,207 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:46:37,207 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 11:46:37,207 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:46:37,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:46:37,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:46:37,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:46:37,211 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:46:37,212 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:46:37,212 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:46:37,212 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:46:37,213 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:46:37,213 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:46:37,213 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:46:37,213 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:46:37,214 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:46:37,214 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:46:37,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:37,214 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:46:37,215 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:46:37,215 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:46:37,215 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 11:46:37,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 11:46:37,216 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:46:37,216 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:46:37,218 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:46:37,218 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:46:37,218 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:46:37,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:46:37,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:46:37,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:46:37,495 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:46:37,495 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:46:37,497 INFO L431 ainManager$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 [2024-09-25 11:46:37,582 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:46:37,582 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:46:37,585 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-simple/nested_4.c [2024-09-25 11:46:38,961 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:46:39,163 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:46:39,163 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-simple/nested_4.c [2024-09-25 11:46:39,171 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/5f665c2f4/3ebaa64526b248c1878bd28f39288e9c/FLAG03f73161f [2024-09-25 11:46:39,189 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/5f665c2f4/3ebaa64526b248c1878bd28f39288e9c [2024-09-25 11:46:39,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:46:39,191 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:46:39,194 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:39,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:46:39,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:46:39,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:37" (1/2) ... [2024-09-25 11:46:39,203 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133866ca and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:39, skipping insertion in model container [2024-09-25 11:46:39,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:37" (1/2) ... [2024-09-25 11:46:39,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@56d5be31 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:39, skipping insertion in model container [2024-09-25 11:46:39,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:39" (2/2) ... [2024-09-25 11:46:39,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133866ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:39, skipping insertion in model container [2024-09-25 11:46:39,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:39" (2/2) ... [2024-09-25 11:46:39,215 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:46:39,216 INFO L1541 ArrayList]: Loop invariant at [L22-L30] ((((b == 6) && (c == 6)) && (a <= 6)) && (d == 6)) [2024-09-25 11:46:39,216 INFO L1541 ArrayList]: Loop invariant at [L24-L28] (((((((((b <= 5) && (a <= 5)) && (c == 1)) || (((b <= 5) && (5 == c)) && (a <= 5))) || (((b <= 5) && (a <= 5)) && (c == 3))) || ((((c == 6) && (b <= 5)) && (d == 6)) && (a <= 5))) || (((b <= 5) && (c == 0)) && (a <= 5))) || (((b <= 5) && (c == 2)) && (a <= 5))) || (((b <= 5) && (c == 4)) && (a <= 5))) [2024-09-25 11:46:39,216 INFO L1541 ArrayList]: Loop invariant at [L23-L29] ((((c == 6) && (b <= 6)) && (d == 6)) && (a <= 5)) [2024-09-25 11:46:39,216 INFO L1541 ArrayList]: Loop invariant at [L25-L27] (((((((((((((((b <= 5) && (5 == c)) && (d == 1)) && (a <= 5)) || ((((b <= 5) && (d == 3)) && (5 == c)) && (a <= 5))) || (((b <= 5) && (a <= 5)) && (c == 1))) || ((((d == 4) && (b <= 5)) && (5 == c)) && (a <= 5))) || ((((d == 0) && (b <= 5)) && (5 == c)) && (a <= 5))) || (((b <= 5) && (a <= 5)) && (c == 3))) || ((((b <= 5) && (5 == c)) && (d == 2)) && (a <= 5))) || (((b <= 5) && (c == 0)) && (a <= 5))) || ((((b <= 5) && (5 == c)) && (d == 6)) && (a <= 5))) || (((b <= 5) && (c == 2)) && (a <= 5))) || (((b <= 5) && (c == 4)) && (a <= 5))) || ((((b <= 5) && (5 == c)) && (5 == d)) && (a <= 5))) [2024-09-25 11:46:39,237 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:46:39,406 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/loop-simple/nested_4.c[841,854] [2024-09-25 11:46:39,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:39,422 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-25 11:46:39,477 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/loop-simple/nested_4.c[841,854] [2024-09-25 11:46:39,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:39,496 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:46:39,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:39 WrapperNode [2024-09-25 11:46:39,497 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:39,498 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:46:39,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:46:39,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:46:39,511 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:39" (1/1) ... [2024-09-25 11:46:39,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:39" (1/1) ... [2024-09-25 11:46:39,516 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:39" (1/1) ... [2024-09-25 11:46:39,530 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]. [2024-09-25 11:46:39,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:39" (1/1) ... [2024-09-25 11:46:39,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:39" (1/1) ... [2024-09-25 11:46:39,534 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:39" (1/1) ... [2024-09-25 11:46:39,538 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:39" (1/1) ... [2024-09-25 11:46:39,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:39" (1/1) ... [2024-09-25 11:46:39,540 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:39" (1/1) ... [2024-09-25 11:46:39,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:46:39,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:46:39,543 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:46:39,543 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:46:39,544 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:39" (1/1) ... [2024-09-25 11:46:39,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:39,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:46:39,572 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) [2024-09-25 11:46:39,576 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 [2024-09-25 11:46:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:46:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:46:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:46:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:46:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:46:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:46:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:46:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:46:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:46:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-25 11:46:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:46:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-25 11:46:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-25 11:46:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:46:39,721 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:46:39,723 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:46:39,923 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:46:39,944 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:46:39,944 INFO L317 CfgBuilder]: Removed 4 assume(true) statements. [2024-09-25 11:46:39,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:39 BoogieIcfgContainer [2024-09-25 11:46:39,945 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:46:39,945 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:46:39,946 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:46:39,949 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:46:39,949 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:37" (1/4) ... [2024-09-25 11:46:39,950 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@77d5b8ca and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:39, skipping insertion in model container [2024-09-25 11:46:39,950 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:46:39" (2/4) ... [2024-09-25 11:46:39,950 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@77d5b8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:46:39, skipping insertion in model container [2024-09-25 11:46:39,950 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:39" (3/4) ... [2024-09-25 11:46:39,954 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@77d5b8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:46:39, skipping insertion in model container [2024-09-25 11:46:39,954 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:39" (4/4) ... [2024-09-25 11:46:39,955 INFO L79 RefereeObserver]: Analyzing ICFG nested_4.c [2024-09-25 11:46:39,959 INFO L113 InvariantChecker]: Found 4 loops. [2024-09-25 11:46:39,961 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-25 11:46:39,961 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 11:46:39,962 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L22-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-25 11:46:39,962 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 11:46:39,962 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-4 to LOOP_INVARIANT_ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-25 11:46:39,962 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L25-4 to LOOP_INVARIANT_ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 11:46:39,962 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L22-4 to ERROR_LOC mainErr4ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 5 edges. [2024-09-25 11:46:39,963 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-4 to LOOP_INVARIANT_ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-25 11:46:39,963 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L25-4 to LOOP_INVARIANT_ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-25 11:46:39,963 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to error location, 7 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head [2024-09-25 11:46:40,008 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-25 11:46:40,009 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:40,010 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:40,010 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:40,012 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:40,014 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,032 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-25 11:46:40,033 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,033 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:40,033 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:40,034 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:40,034 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:46:40,060 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:46:40,074 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 11:46:40,074 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:40,075 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:40,075 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:40,075 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:40,075 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,080 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-25 11:46:40,080 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,080 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:40,081 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:40,081 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:40,087 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:46:40,097 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:46:40,113 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:46:40,114 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:40,114 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:40,114 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:40,115 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:40,116 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,118 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:46:40,119 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,120 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:40,120 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:40,120 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:40,120 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:46:40,125 INFO L520 InvariantChecker]: The annotation(s) from loop head L22-4 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:46:40,135 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 11:46:40,135 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:40,136 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:40,136 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:40,137 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:40,137 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,149 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-25 11:46:40,149 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,150 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:40,150 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:40,150 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:40,153 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:46:40,158 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-4 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:46:40,170 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:46:40,171 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:40,171 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:40,171 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:40,171 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:40,171 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,174 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:46:40,174 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,174 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:40,175 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:40,175 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:40,175 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:46:40,177 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-4 to loop head mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:46:40,185 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 11:46:40,186 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:40,186 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:40,186 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:40,186 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:40,187 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,195 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-25 11:46:40,195 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,195 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:40,195 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:40,195 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:40,199 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:46:40,204 INFO L520 InvariantChecker]: The annotation(s) from loop head L25-4 to loop head mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:46:40,216 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 11:46:40,219 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:40,219 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:40,219 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:40,220 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:40,220 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,227 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-25 11:46:40,227 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,227 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:40,228 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:40,228 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:40,229 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:46:40,232 INFO L520 InvariantChecker]: The annotation(s) from loop head L22-4 to error location mainErr4ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-25 11:46:40,239 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:46:40,240 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:40,240 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:40,240 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:40,241 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:40,241 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,246 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:46:40,246 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,246 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:40,246 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:40,247 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:40,247 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:46:40,251 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-4 to loop head mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:46:40,257 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:46:40,258 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:40,258 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:40,258 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:40,258 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:40,258 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,264 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:46:40,264 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:40,266 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:40,266 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:40,266 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:40,266 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:46:40,271 INFO L520 InvariantChecker]: The annotation(s) from loop head L25-4 to loop head mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 11:46:40,274 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-25 11:46:40,275 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@77d5b8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 25.09 11:46:40, skipping insertion in model container [2024-09-25 11:46:40,275 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-25 11:46:40,276 INFO L158 Benchmark]: Toolchain (without parser) took 1084.99ms. Allocated memory is still 218.1MB. Free memory was 146.6MB in the beginning and 145.8MB in the end (delta: 786.4kB). Peak memory consumption was 50.1kB. Max. memory is 16.1GB. [2024-09-25 11:46:40,277 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 218.1MB. Free memory is still 182.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:40,277 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 218.1MB. Free memory is still 192.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:40,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.00ms. Allocated memory is still 218.1MB. Free memory was 146.6MB in the beginning and 133.0MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:46:40,278 INFO L158 Benchmark]: Boogie Preprocessor took 44.20ms. Allocated memory is still 218.1MB. Free memory was 133.0MB in the beginning and 130.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:46:40,280 INFO L158 Benchmark]: RCFGBuilder took 402.28ms. Allocated memory is still 218.1MB. Free memory was 130.6MB in the beginning and 178.4MB in the end (delta: -47.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-25 11:46:40,281 INFO L158 Benchmark]: Referee took 329.32ms. Allocated memory is still 218.1MB. Free memory was 178.4MB in the beginning and 145.8MB in the end (delta: 32.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-09-25 11:46:40,283 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 entry of procedure main 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 22. 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 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 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 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. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.12ms. Allocated memory is still 218.1MB. Free memory is still 182.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.21ms. Allocated memory is still 218.1MB. Free memory is still 192.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.00ms. Allocated memory is still 218.1MB. Free memory was 146.6MB in the beginning and 133.0MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.20ms. Allocated memory is still 218.1MB. Free memory was 133.0MB in the beginning and 130.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.28ms. Allocated memory is still 218.1MB. Free memory was 130.6MB in the beginning and 178.4MB in the end (delta: -47.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 329.32ms. Allocated memory is still 218.1MB. Free memory was 178.4MB in the beginning and 145.8MB in the end (delta: 32.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-25 11:46:40,309 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...