./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-simple/nested_2.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/nested_2.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-simple/nested_2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/nested_2.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 16:49:04,166 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 16:49:04,231 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-12 16:49:04,238 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 16:49:04,239 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 16:49:04,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 16:49:04,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 16:49:04,268 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 16:49:04,269 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 16:49:04,269 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 16:49:04,269 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 16:49:04,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 16:49:04,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 16:49:04,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 16:49:04,286 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 16:49:04,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 16:49:04,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 16:49:04,287 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 16:49:04,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 16:49:04,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 16:49:04,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 16:49:04,288 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 16:49:04,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 16:49:04,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 16:49:04,292 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 16:49:04,292 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 16:49:04,292 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 16:49:04,292 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 16:49:04,293 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 16:49:04,293 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 16:49:04,293 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 16:49:04,293 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 16:49:04,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:49:04,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 16:49:04,294 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 16:49:04,294 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 16:49:04,294 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 16:49:04,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 16:49:04,295 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 16:49:04,295 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 16:49:04,295 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 16:49:04,296 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 16:49:04,296 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-12 16:49:04,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 16:49:04,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 16:49:04,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 16:49:04,564 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-12 16:49:04,565 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-12 16:49:04,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/nested_2.yml/witness-2.1.yml [2024-09-12 16:49:04,615 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 16:49:04,615 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 16:49:04,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-simple/nested_2.c [2024-09-12 16:49:06,015 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 16:49:06,200 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 16:49:06,201 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-simple/nested_2.c [2024-09-12 16:49:06,209 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/334820296/c74ac3f5c60147dfb9142efc92d68c68/FLAG443430705 [2024-09-12 16:49:06,225 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/334820296/c74ac3f5c60147dfb9142efc92d68c68 [2024-09-12 16:49:06,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 16:49:06,226 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-12 16:49:06,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 16:49:06,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 16:49:06,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 16:49:06,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:49:04" (1/2) ... [2024-09-12 16:49:06,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7042c7c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:49:06, skipping insertion in model container [2024-09-12 16:49:06,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:49:04" (1/2) ... [2024-09-12 16:49:06,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6b0106d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:49:06, skipping insertion in model container [2024-09-12 16:49:06,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:49:06" (2/2) ... [2024-09-12 16:49:06,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7042c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:49:06, skipping insertion in model container [2024-09-12 16:49:06,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:49:06" (2/2) ... [2024-09-12 16:49:06,245 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-12 16:49:06,246 INFO L1541 ArrayList]: Loop invariant at [L20-L24] ((b == 6) && (a <= 6)) [2024-09-12 16:49:06,246 INFO L1541 ArrayList]: Loop invariant at [L21-L23] ((b <= 6) && (a <= 5)) [2024-09-12 16:49:06,260 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 16:49:06,410 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-simple/nested_2.c[730,743] [2024-09-12 16:49:06,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:49:06,427 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local [2024-09-12 16:49:06,459 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-simple/nested_2.c[730,743] [2024-09-12 16:49:06,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:49:06,472 INFO L204 MainTranslator]: Completed translation [2024-09-12 16:49:06,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:49:06 WrapperNode [2024-09-12 16:49:06,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 16:49:06,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 16:49:06,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 16:49:06,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 16:49:06,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:49:06" (1/1) ... [2024-09-12 16:49:06,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:49:06" (1/1) ... [2024-09-12 16:49:06,492 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:49:06" (1/1) ... [2024-09-12 16:49:06,505 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]. [2024-09-12 16:49:06,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:49:06" (1/1) ... [2024-09-12 16:49:06,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:49:06" (1/1) ... [2024-09-12 16:49:06,514 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:49:06" (1/1) ... [2024-09-12 16:49:06,519 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:49:06" (1/1) ... [2024-09-12 16:49:06,520 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:49:06" (1/1) ... [2024-09-12 16:49:06,520 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:49:06" (1/1) ... [2024-09-12 16:49:06,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 16:49:06,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 16:49:06,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 16:49:06,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 16:49:06,524 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:49:06" (1/1) ... [2024-09-12 16:49:06,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:49:06,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-12 16:49:06,602 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) [2024-09-12 16:49:06,608 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 [2024-09-12 16:49:06,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 16:49:06,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 16:49:06,656 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-12 16:49:06,656 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 16:49:06,657 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-12 16:49:06,657 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-12 16:49:06,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 16:49:06,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 16:49:06,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 16:49:06,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 16:49:06,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 16:49:06,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-12 16:49:06,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-12 16:49:06,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-12 16:49:06,731 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 16:49:06,734 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 16:49:06,883 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-09-12 16:49:06,884 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 16:49:06,923 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 16:49:06,924 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-12 16:49:06,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:49:06 BoogieIcfgContainer [2024-09-12 16:49:06,925 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 16:49:06,925 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-12 16:49:06,926 INFO L270 PluginConnector]: Initializing Referee... [2024-09-12 16:49:06,927 INFO L274 PluginConnector]: Referee initialized [2024-09-12 16:49:06,927 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:49:04" (1/4) ... [2024-09-12 16:49:06,928 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2865be46 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 04:49:06, skipping insertion in model container [2024-09-12 16:49:06,929 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 12.09 04:49:06" (2/4) ... [2024-09-12 16:49:06,929 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2865be46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 04:49:06, skipping insertion in model container [2024-09-12 16:49:06,929 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:49:06" (3/4) ... [2024-09-12 16:49:06,930 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2865be46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 04:49:06, skipping insertion in model container [2024-09-12 16:49:06,930 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:49:06" (4/4) ... [2024-09-12 16:49:06,932 INFO L79 RefereeObserver]: Analyzing ICFG nested_2.c [2024-09-12 16:49:06,935 INFO L112 InvariantChecker]: Found 2 loops. [2024-09-12 16:49:06,936 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L21-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-12 16:49:06,936 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L20-4 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-12 16:49:06,937 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L21-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-12 16:49:06,937 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-12 16:49:06,938 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L20-4 to ERROR_LOC mainErr2ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 5 edges. [2024-09-12 16:49:06,938 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to loop head, 3 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from loop head to error location [2024-09-12 16:49:06,981 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 16:49:06,982 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:49:06,984 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:49:06,984 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:49:06,985 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:49:06,987 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:06,999 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 16:49:07,000 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:07,001 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:49:07,001 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:49:07,001 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:49:07,002 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:49:07,018 INFO L514 InvariantChecker]: The annotation(s) from loop head L21-4 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 16:49:07,028 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 16:49:07,028 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:49:07,029 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:49:07,029 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:49:07,029 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:49:07,029 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:07,033 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 16:49:07,033 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:07,034 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:49:07,034 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:49:07,034 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:49:07,034 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:49:07,036 INFO L514 InvariantChecker]: The annotation(s) from loop head L20-4 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 16:49:07,043 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-12 16:49:07,043 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:49:07,044 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:49:07,044 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:49:07,044 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:49:07,044 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:07,050 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-12 16:49:07,050 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:07,051 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:49:07,051 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:49:07,051 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:49:07,056 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:49:07,059 INFO L514 InvariantChecker]: The annotation(s) from loop head L21-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 16:49:07,067 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-12 16:49:07,067 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:49:07,068 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:49:07,068 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:49:07,068 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:49:07,068 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:07,074 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-12 16:49:07,075 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:07,075 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:49:07,075 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:49:07,075 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:49:07,075 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:49:07,084 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 16:49:07,091 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-12 16:49:07,091 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:49:07,091 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:49:07,092 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:49:07,092 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:49:07,092 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:07,097 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-12 16:49:07,097 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:49:07,097 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:49:07,098 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:49:07,098 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:49:07,099 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:49:07,102 INFO L514 InvariantChecker]: The annotation(s) from loop head L20-4 to error location mainErr2ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-12 16:49:07,105 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness [2024-09-12 16:49:07,105 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2865be46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 12.09 04:49:07, skipping insertion in model container [2024-09-12 16:49:07,105 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-12 16:49:07,107 INFO L158 Benchmark]: Toolchain (without parser) took 879.87ms. Allocated memory is still 184.5MB. Free memory was 139.5MB in the beginning and 101.2MB in the end (delta: 38.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-09-12 16:49:07,107 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 184.5MB. Free memory is still 155.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:49:07,108 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 153.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:49:07,108 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.68ms. Allocated memory is still 184.5MB. Free memory was 139.5MB in the beginning and 127.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-12 16:49:07,109 INFO L158 Benchmark]: Boogie Preprocessor took 47.77ms. Allocated memory is still 184.5MB. Free memory was 127.0MB in the beginning and 124.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 16:49:07,110 INFO L158 Benchmark]: RCFGBuilder took 402.58ms. Allocated memory is still 184.5MB. Free memory was 124.8MB in the beginning and 112.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-12 16:49:07,110 INFO L158 Benchmark]: Referee took 179.88ms. Allocated memory is still 184.5MB. Free memory was 112.3MB in the beginning and 101.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-12 16:49:07,116 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness Annotation is a valid proof of correctness Annotation is valid for all loop-free paths from loop head at line 20 to loop head at line 21. Annotation is valid for all loop-free paths from loop head at line 20 to check that a call to reach_error is unreachable at line 26. Annotation is valid for all loop-free paths from loop head at line 21 to loop head at line 20. Annotation is valid for all loop-free paths from loop head at line 21 to loop head at line 21. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 20. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.20ms. Allocated memory is still 184.5MB. Free memory is still 155.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 153.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.68ms. Allocated memory is still 184.5MB. Free memory was 139.5MB in the beginning and 127.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.77ms. Allocated memory is still 184.5MB. Free memory was 127.0MB in the beginning and 124.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.58ms. Allocated memory is still 184.5MB. Free memory was 124.8MB in the beginning and 112.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 179.88ms. Allocated memory is still 184.5MB. Free memory was 112.3MB in the beginning and 101.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-12 16:49:07,139 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE