./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/mod3.c.v+sep-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ca4ee3dd 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-industry-pattern/mod3.c.v+sep-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/mod3.c.v+sep-reducer.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-tmp.dk.referee-eval-ca4ee3d-m [2024-09-20 20:09:29,482 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 20:09:29,558 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 20:09:29,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 20:09:29,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 20:09:29,594 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 20:09:29,595 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 20:09:29,595 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 20:09:29,596 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 20:09:29,596 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 20:09:29,597 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 20:09:29,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 20:09:29,598 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 20:09:29,600 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 20:09:29,600 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 20:09:29,601 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 20:09:29,601 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 20:09:29,601 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 20:09:29,602 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 20:09:29,602 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 20:09:29,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 20:09:29,603 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 20:09:29,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 20:09:29,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 20:09:29,604 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 20:09:29,604 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 20:09:29,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 20:09:29,605 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 20:09:29,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 20:09:29,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 20:09:29,606 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 20:09:29,606 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 20:09:29,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 20:09:29,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:09:29,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 20:09:29,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 20:09:29,608 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 20:09:29,608 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 20:09:29,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 20:09:29,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 20:09:29,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 20:09:29,610 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 20:09:29,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 20:09:29,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 20:09:29,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 20:09:29,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 20:09:29,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 20:09:29,894 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 20:09:29,895 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 20:09:29,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/mod3.c.v+sep-reducer.yml/witness-2.1.yml [2024-09-20 20:09:29,940 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 20:09:29,942 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 20:09:29,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-20 20:09:31,415 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 20:09:31,652 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 20:09:31,653 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-20 20:09:31,662 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/141946ee1/650f9e5f8094461b90aaaa9c248939cd/FLAG79c3e077f [2024-09-20 20:09:32,024 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/141946ee1/650f9e5f8094461b90aaaa9c248939cd [2024-09-20 20:09:32,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 20:09:32,026 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 20:09:32,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 20:09:32,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 20:09:32,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 20:09:32,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:09:29" (1/2) ... [2024-09-20 20:09:32,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58294bf2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:09:32, skipping insertion in model container [2024-09-20 20:09:32,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:09:29" (1/2) ... [2024-09-20 20:09:32,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@82be6cb and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:09:32, skipping insertion in model container [2024-09-20 20:09:32,036 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:09:32" (2/2) ... [2024-09-20 20:09:32,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58294bf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:32, skipping insertion in model container [2024-09-20 20:09:32,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:09:32" (2/2) ... [2024-09-20 20:09:32,047 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 20:09:32,048 INFO L1541 ArrayList]: Location invariant before [L42-L42] ((main__x % 3) < 1) [2024-09-20 20:09:32,048 INFO L1541 ArrayList]: Location invariant before [L24-L141] ((main__x % 3) < 1) [2024-09-20 20:09:32,048 INFO L1541 ArrayList]: Location invariant before [L36-L112] ((main__x % 3) < 1) [2024-09-20 20:09:32,072 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 20:09:32,279 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-industry-pattern/mod3.c.v+sep-reducer.c[2057,2070] [2024-09-20 20:09:32,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:09:32,302 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local [2024-09-20 20:09:32,353 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-industry-pattern/mod3.c.v+sep-reducer.c[2057,2070] Start Parsing Local Start Parsing Local [2024-09-20 20:09:32,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:09:32,398 INFO L204 MainTranslator]: Completed translation [2024-09-20 20:09:32,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:32 WrapperNode [2024-09-20 20:09:32,399 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 20:09:32,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 20:09:32,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 20:09:32,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 20:09:32,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:32" (1/1) ... [2024-09-20 20:09:32,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:32" (1/1) ... [2024-09-20 20:09:32,423 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:32" (1/1) ... [2024-09-20 20:09:32,453 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]. [2024-09-20 20:09:32,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:32" (1/1) ... [2024-09-20 20:09:32,454 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:32" (1/1) ... [2024-09-20 20:09:32,461 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:32" (1/1) ... [2024-09-20 20:09:32,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:32" (1/1) ... [2024-09-20 20:09:32,468 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:32" (1/1) ... [2024-09-20 20:09:32,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:32" (1/1) ... [2024-09-20 20:09:32,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 20:09:32,473 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 20:09:32,473 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 20:09:32,473 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 20:09:32,474 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:32" (1/1) ... [2024-09-20 20:09:32,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:09:32,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 20:09:32,506 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) [2024-09-20 20:09:32,512 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 [2024-09-20 20:09:32,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 20:09:32,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 20:09:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 20:09:32,557 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 20:09:32,557 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 20:09:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 20:09:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 20:09:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 20:09:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 20:09:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 20:09:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 20:09:32,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 20:09:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 20:09:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 20:09:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-20 20:09:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-20 20:09:32,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 20:09:32,646 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 20:09:32,648 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 20:09:32,828 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 20:09:32,856 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 20:09:32,857 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 20:09:32,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:09:32 BoogieIcfgContainer [2024-09-20 20:09:32,857 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 20:09:32,858 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 20:09:32,858 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 20:09:32,859 INFO L274 PluginConnector]: Referee initialized [2024-09-20 20:09:32,859 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:09:29" (1/4) ... [2024-09-20 20:09:32,859 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@66023f3c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:09:32, skipping insertion in model container [2024-09-20 20:09:32,860 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 08:09:32" (2/4) ... [2024-09-20 20:09:32,860 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@66023f3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:09:32, skipping insertion in model container [2024-09-20 20:09:32,860 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:32" (3/4) ... [2024-09-20 20:09:32,860 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@66023f3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:09:32, skipping insertion in model container [2024-09-20 20:09:32,861 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:09:32" (4/4) ... [2024-09-20 20:09:32,862 INFO L79 RefereeObserver]: Analyzing ICFG mod3.c.v+sep-reducer.c [2024-09-20 20:09:32,866 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 20:09:32,867 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 26 edges. [2024-09-20 20:09:32,868 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 29 edges. [2024-09-20 20:09:32,868 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 26 edges. [2024-09-20 20:09:32,868 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 26 edges. [2024-09-20 20:09:32,869 INFO L131 InvariantChecker]: Will check 4 loop-free subgraphs from procedure entry to error location [2024-09-20 20:09:32,931 INFO L314 BlockEncoder]: Initial Icfg 20 locations, 26 edges [2024-09-20 20:09:32,932 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:09:32,933 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:09:32,934 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:09:32,935 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:09:32,937 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:33,064 INFO L101 BaseMinimizeStates]: Removed 62 edges and 16 locations by large block encoding [2024-09-20 20:09:33,066 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:33,066 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:09:33,066 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:09:33,066 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:09:33,089 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 7 edges [2024-09-20 20:09:33,106 INFO L314 BlockEncoder]: Initial Icfg 23 locations, 29 edges [2024-09-20 20:09:33,106 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:09:33,107 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:09:33,107 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:09:33,107 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:09:33,107 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:33,177 INFO L101 BaseMinimizeStates]: Removed 67 edges and 19 locations by large block encoding [2024-09-20 20:09:33,177 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:33,178 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:09:33,178 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:09:33,178 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:09:33,216 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2024-09-20 20:09:33,238 INFO L314 BlockEncoder]: Initial Icfg 20 locations, 26 edges [2024-09-20 20:09:33,242 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:09:33,242 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:09:33,243 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:09:33,243 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:09:33,243 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:33,366 INFO L101 BaseMinimizeStates]: Removed 65 edges and 16 locations by large block encoding [2024-09-20 20:09:33,367 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:33,367 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:09:33,367 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:09:33,367 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:09:33,381 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 8 edges [2024-09-20 20:09:33,382 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-20 20:09:33,387 INFO L158 Benchmark]: Toolchain (without parser) took 1360.32ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 68.3MB in the beginning and 98.8MB in the end (delta: -30.5MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2024-09-20 20:09:33,388 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 125.8MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:09:33,388 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:09:33,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.61ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 67.9MB in the beginning and 127.2MB in the end (delta: -59.2MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2024-09-20 20:09:33,390 INFO L158 Benchmark]: Boogie Preprocessor took 70.68ms. Allocated memory is still 157.3MB. Free memory was 127.1MB in the beginning and 128.4MB in the end (delta: -1.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-09-20 20:09:33,390 INFO L158 Benchmark]: RCFGBuilder took 384.56ms. Allocated memory is still 157.3MB. Free memory was 128.4MB in the beginning and 113.7MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 20:09:33,391 INFO L158 Benchmark]: Referee took 527.25ms. Allocated memory is still 157.3MB. Free memory was 113.7MB in the beginning and 98.8MB in the end (delta: 15.0MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-09-20 20:09:33,394 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.18ms. Allocated memory is still 125.8MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 93.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.61ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 67.9MB in the beginning and 127.2MB in the end (delta: -59.2MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.68ms. Allocated memory is still 157.3MB. Free memory was 127.1MB in the beginning and 128.4MB in the end (delta: -1.2MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * RCFGBuilder took 384.56ms. Allocated memory is still 157.3MB. Free memory was 128.4MB in the beginning and 113.7MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 527.25ms. Allocated memory is still 157.3MB. Free memory was 113.7MB in the beginning and 98.8MB in the end (delta: 15.0MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 20:09:33,427 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/mod3.c.v+sep-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-ca4ee3d-m [2024-09-20 20:09:35,587 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 20:09:35,659 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 20:09:35,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 20:09:35,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 20:09:35,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 20:09:35,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 20:09:35,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 20:09:35,705 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 20:09:35,706 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 20:09:35,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 20:09:35,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 20:09:35,710 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 20:09:35,710 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 20:09:35,711 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 20:09:35,711 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 20:09:35,711 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 20:09:35,712 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 20:09:35,712 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 20:09:35,712 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 20:09:35,716 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 20:09:35,716 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 20:09:35,716 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 20:09:35,717 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 20:09:35,717 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 20:09:35,717 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 20:09:35,717 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 20:09:35,718 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 20:09:35,718 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 20:09:35,718 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 20:09:35,718 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 20:09:35,718 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 20:09:35,719 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 20:09:35,719 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 20:09:35,719 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 20:09:35,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:09:35,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 20:09:35,721 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 20:09:35,722 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 20:09:35,722 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 20:09:35,722 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 20:09:35,723 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 20:09:35,723 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 20:09:35,724 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 20:09:35,724 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 20:09:35,724 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 20:09:35,724 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 20:09:36,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 20:09:36,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 20:09:36,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 20:09:36,072 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 20:09:36,073 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 20:09:36,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/mod3.c.v+sep-reducer.yml/witness-2.1.yml [2024-09-20 20:09:36,122 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 20:09:36,122 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 20:09:36,123 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-20 20:09:37,692 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 20:09:37,878 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 20:09:37,879 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+sep-reducer.c [2024-09-20 20:09:37,886 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/01bd4eb0e/07f000d481ef47ffbaf7122ce67923b4/FLAG0e39b6a78 [2024-09-20 20:09:38,271 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/01bd4eb0e/07f000d481ef47ffbaf7122ce67923b4 [2024-09-20 20:09:38,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 20:09:38,274 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 20:09:38,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 20:09:38,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 20:09:38,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 20:09:38,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:09:36" (1/2) ... [2024-09-20 20:09:38,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9656698 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:09:38, skipping insertion in model container [2024-09-20 20:09:38,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:09:36" (1/2) ... [2024-09-20 20:09:38,286 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@78bc85b9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:09:38, skipping insertion in model container [2024-09-20 20:09:38,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:09:38" (2/2) ... [2024-09-20 20:09:38,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9656698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:38, skipping insertion in model container [2024-09-20 20:09:38,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:09:38" (2/2) ... [2024-09-20 20:09:38,300 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 20:09:38,300 INFO L1541 ArrayList]: Location invariant before [L36-L112] ((main__x % 3) < 1) [2024-09-20 20:09:38,301 INFO L1541 ArrayList]: Location invariant before [L24-L141] ((main__x % 3) < 1) [2024-09-20 20:09:38,301 INFO L1541 ArrayList]: Location invariant before [L42-L42] ((main__x % 3) < 1) [2024-09-20 20:09:38,328 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 20:09:38,510 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-industry-pattern/mod3.c.v+sep-reducer.c[2057,2070] [2024-09-20 20:09:38,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:09:38,563 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local [2024-09-20 20:09:38,611 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-industry-pattern/mod3.c.v+sep-reducer.c[2057,2070] Start Parsing Local Start Parsing Local [2024-09-20 20:09:38,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:09:38,640 INFO L204 MainTranslator]: Completed translation [2024-09-20 20:09:38,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:38 WrapperNode [2024-09-20 20:09:38,641 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 20:09:38,642 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 20:09:38,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 20:09:38,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 20:09:38,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:38" (1/1) ... [2024-09-20 20:09:38,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:38" (1/1) ... [2024-09-20 20:09:38,663 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:38" (1/1) ... [2024-09-20 20:09:38,680 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]. [2024-09-20 20:09:38,680 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:38" (1/1) ... [2024-09-20 20:09:38,680 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:38" (1/1) ... [2024-09-20 20:09:38,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:38" (1/1) ... [2024-09-20 20:09:38,696 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:38" (1/1) ... [2024-09-20 20:09:38,699 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:38" (1/1) ... [2024-09-20 20:09:38,700 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:38" (1/1) ... [2024-09-20 20:09:38,704 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 20:09:38,707 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 20:09:38,707 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 20:09:38,708 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 20:09:38,708 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:38" (1/1) ... [2024-09-20 20:09:38,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:09:38,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 20:09:38,740 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) [2024-09-20 20:09:38,746 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 [2024-09-20 20:09:38,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 20:09:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 20:09:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 20:09:38,786 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 20:09:38,787 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 20:09:38,787 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 20:09:38,787 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 20:09:38,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 20:09:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 20:09:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 20:09:38,788 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 20:09:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 20:09:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-20 20:09:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 20:09:38,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-20 20:09:38,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-20 20:09:38,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 20:09:38,878 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 20:09:38,880 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 20:09:39,136 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 20:09:39,171 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 20:09:39,171 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 20:09:39,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:09:39 BoogieIcfgContainer [2024-09-20 20:09:39,172 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 20:09:39,172 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 20:09:39,172 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 20:09:39,173 INFO L274 PluginConnector]: Referee initialized [2024-09-20 20:09:39,174 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:09:36" (1/4) ... [2024-09-20 20:09:39,174 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3efb8c3a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:09:39, skipping insertion in model container [2024-09-20 20:09:39,174 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 08:09:38" (2/4) ... [2024-09-20 20:09:39,175 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3efb8c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:09:39, skipping insertion in model container [2024-09-20 20:09:39,175 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:38" (3/4) ... [2024-09-20 20:09:39,175 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3efb8c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:09:39, skipping insertion in model container [2024-09-20 20:09:39,175 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:09:39" (4/4) ... [2024-09-20 20:09:39,177 INFO L79 RefereeObserver]: Analyzing ICFG mod3.c.v+sep-reducer.c [2024-09-20 20:09:39,180 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 20:09:39,181 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 26 edges. [2024-09-20 20:09:39,181 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 29 edges. [2024-09-20 20:09:39,182 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 26 edges. [2024-09-20 20:09:39,182 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 26 edges. [2024-09-20 20:09:39,183 INFO L131 InvariantChecker]: Will check 4 loop-free subgraphs from procedure entry to error location [2024-09-20 20:09:39,254 INFO L314 BlockEncoder]: Initial Icfg 20 locations, 26 edges [2024-09-20 20:09:39,257 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:09:39,257 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:09:39,258 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:09:39,259 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:09:39,261 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:39,369 INFO L101 BaseMinimizeStates]: Removed 62 edges and 16 locations by large block encoding [2024-09-20 20:09:39,371 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:39,371 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:09:39,372 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:09:39,373 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:09:39,403 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 7 edges [2024-09-20 20:09:39,424 INFO L314 BlockEncoder]: Initial Icfg 23 locations, 29 edges [2024-09-20 20:09:39,426 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:09:39,426 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:09:39,427 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:09:39,427 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:09:39,427 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:39,516 INFO L101 BaseMinimizeStates]: Removed 67 edges and 19 locations by large block encoding [2024-09-20 20:09:39,516 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:39,516 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:09:39,517 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:09:39,517 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:09:39,531 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2024-09-20 20:09:39,546 INFO L314 BlockEncoder]: Initial Icfg 20 locations, 26 edges [2024-09-20 20:09:39,546 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:09:39,546 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:09:39,547 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:09:39,547 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:09:39,547 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:39,619 INFO L101 BaseMinimizeStates]: Removed 65 edges and 16 locations by large block encoding [2024-09-20 20:09:39,619 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:39,620 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:09:39,620 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:09:39,620 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:09:39,642 INFO L314 BlockEncoder]: Encoded RCFG 4 locations, 8 edges [2024-09-20 20:09:39,643 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-20 20:09:39,649 INFO L158 Benchmark]: Toolchain (without parser) took 1374.88ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 52.2MB in the beginning and 67.7MB in the end (delta: -15.5MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2024-09-20 20:09:39,650 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 52.4MB. Free memory was 29.5MB in the beginning and 29.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:09:39,650 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 52.4MB. Free memory was 27.4MB in the beginning and 27.3MB in the end (delta: 75.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:09:39,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.90ms. Allocated memory is still 83.9MB. Free memory was 52.0MB in the beginning and 59.4MB in the end (delta: -7.5MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-09-20 20:09:39,651 INFO L158 Benchmark]: Boogie Preprocessor took 63.36ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 56.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 20:09:39,652 INFO L158 Benchmark]: RCFGBuilder took 465.26ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 41.5MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 20:09:39,652 INFO L158 Benchmark]: Referee took 475.40ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 41.5MB in the beginning and 67.7MB in the end (delta: -26.2MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2024-09-20 20:09:39,658 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.21ms. Allocated memory is still 52.4MB. Free memory was 29.5MB in the beginning and 29.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.10ms. Allocated memory is still 52.4MB. Free memory was 27.4MB in the beginning and 27.3MB in the end (delta: 75.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.90ms. Allocated memory is still 83.9MB. Free memory was 52.0MB in the beginning and 59.4MB in the end (delta: -7.5MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.36ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 56.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 465.26ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 41.5MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 475.40ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 41.5MB in the beginning and 67.7MB in the end (delta: -26.2MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 20:09:39,691 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: ERROR: ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug