./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27b49876 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-invgen/id_build.i.v+lhb-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-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-27b4987-m [2024-09-21 12:47:23,075 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 12:47:23,138 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 12:47:23,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 12:47:23,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 12:47:23,166 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 12:47:23,167 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 12:47:23,167 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 12:47:23,167 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 12:47:23,167 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 12:47:23,168 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 12:47:23,168 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 12:47:23,169 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 12:47:23,171 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 12:47:23,172 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 12:47:23,172 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 12:47:23,173 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 12:47:23,173 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 12:47:23,173 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 12:47:23,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 12:47:23,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 12:47:23,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 12:47:23,174 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 12:47:23,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 12:47:23,174 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 12:47:23,174 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 12:47:23,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 12:47:23,175 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 12:47:23,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 12:47:23,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 12:47:23,175 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 12:47:23,175 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 12:47:23,175 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 12:47:23,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:23,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 12:47:23,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 12:47:23,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 12:47:23,176 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 12:47:23,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 12:47:23,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 12:47:23,176 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 12:47:23,178 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 12:47:23,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 12:47:23,178 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 12:47:23,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 12:47:23,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 12:47:23,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 12:47:23,387 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 12:47:23,387 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 12:47:23,388 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-21 12:47:24,524 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 12:47:24,700 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 12:47:24,701 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-21 12:47:24,706 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/21e4b2ccd/de90dc46e27149ff95ef4ae020ba064f/FLAG3f35eae1e [2024-09-21 12:47:25,130 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/21e4b2ccd/de90dc46e27149ff95ef4ae020ba064f [2024-09-21 12:47:25,132 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 12:47:25,133 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 12:47:25,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/witness-2.1.yml [2024-09-21 12:47:25,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 12:47:25,171 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 12:47:25,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:25,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 12:47:25,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 12:47:25,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:25" (1/2) ... [2024-09-21 12:47:25,177 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b47c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:25, skipping insertion in model container [2024-09-21 12:47:25,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:25" (1/2) ... [2024-09-21 12:47:25,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@15f4fc2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:25, skipping insertion in model container [2024-09-21 12:47:25,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:25" (2/2) ... [2024-09-21 12:47:25,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b47c61 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:25, skipping insertion in model container [2024-09-21 12:47:25,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:25" (2/2) ... [2024-09-21 12:47:25,186 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 12:47:25,186 INFO L1541 ArrayList]: Location invariant before [L23-L101] ((\old(__return_100) == __return_100) && (0 <= main__i)) [2024-09-21 12:47:25,186 INFO L1541 ArrayList]: Location invariant before [L39-L89] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-21 12:47:25,186 INFO L1541 ArrayList]: Location invariant before [L55-L86] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-21 12:47:25,203 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 12:47:25,334 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-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-21 12:47:25,338 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-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-21 12:47:25,339 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-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2024-09-21 12:47:25,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:25,362 INFO L200 MainTranslator]: Completed pre-run [2024-09-21 12:47:25,374 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-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-21 12:47:25,375 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-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-21 12:47:25,376 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-invgen/id_build.i.v+lhb-reducer.c[1375,1388] Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-21 12:47:25,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:25,414 INFO L204 MainTranslator]: Completed translation [2024-09-21 12:47:25,414 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:25 WrapperNode [2024-09-21 12:47:25,414 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:25,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 12:47:25,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 12:47:25,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 12:47:25,424 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:25" (1/1) ... [2024-09-21 12:47:25,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:25" (1/1) ... [2024-09-21 12:47:25,429 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:25" (1/1) ... [2024-09-21 12:47:25,443 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]. [2024-09-21 12:47:25,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:25" (1/1) ... [2024-09-21 12:47:25,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:25" (1/1) ... [2024-09-21 12:47:25,451 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:25" (1/1) ... [2024-09-21 12:47:25,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:25" (1/1) ... [2024-09-21 12:47:25,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:25" (1/1) ... [2024-09-21 12:47:25,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:25" (1/1) ... [2024-09-21 12:47:25,458 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 12:47:25,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 12:47:25,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 12:47:25,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 12:47:25,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:25" (1/1) ... [2024-09-21 12:47:25,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:25,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 12:47:25,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-21 12:47:25,492 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-21 12:47:25,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 12:47:25,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 12:47:25,523 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 12:47:25,523 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 12:47:25,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 12:47:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 12:47:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 12:47:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 12:47:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 12:47:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 12:47:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 12:47:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 12:47:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 12:47:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 12:47:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-21 12:47:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 12:47:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-21 12:47:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-21 12:47:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 12:47:25,577 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 12:47:25,579 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 12:47:25,694 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 12:47:25,731 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 12:47:25,731 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-21 12:47:25,732 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:25 BoogieIcfgContainer [2024-09-21 12:47:25,732 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 12:47:25,732 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 12:47:25,733 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 12:47:25,733 INFO L274 PluginConnector]: Referee initialized [2024-09-21 12:47:25,733 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 12:47:25" (1/4) ... [2024-09-21 12:47:25,734 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@276bdcc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:47:25, skipping insertion in model container [2024-09-21 12:47:25,735 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:25" (2/4) ... [2024-09-21 12:47:25,735 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@276bdcc5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:47:25, skipping insertion in model container [2024-09-21 12:47:25,735 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:25" (3/4) ... [2024-09-21 12:47:25,736 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@276bdcc5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:47:25, skipping insertion in model container [2024-09-21 12:47:25,736 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:25" (4/4) ... [2024-09-21 12:47:25,737 INFO L79 RefereeObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2024-09-21 12:47:25,739 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 12:47:25,740 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-21 12:47:25,740 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-21 12:47:25,740 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-21 12:47:25,740 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-21 12:47:25,741 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr5ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-21 12:47:25,741 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 7 edges. [2024-09-21 12:47:25,741 INFO L131 InvariantChecker]: Will check 6 loop-free subgraphs from procedure entry to error location [2024-09-21 12:47:25,778 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-21 12:47:25,779 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:47:25,779 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:47:25,780 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:47:25,781 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:47:25,783 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:25,837 INFO L101 BaseMinimizeStates]: Removed 27 edges and 8 locations by large block encoding [2024-09-21 12:47:25,838 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:25,838 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:47:25,839 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:47:25,839 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:47:25,839 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 10 edges [2024-09-21 12:47:25,849 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-21 12:47:25,849 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:47:25,849 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:47:25,850 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:47:25,850 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:47:25,850 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:25,878 INFO L101 BaseMinimizeStates]: Removed 24 edges and 8 locations by large block encoding [2024-09-21 12:47:25,879 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:25,879 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:47:25,879 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:47:25,879 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:47:25,879 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 9 edges [2024-09-21 12:47:25,889 INFO L314 BlockEncoder]: Initial Icfg 14 locations, 16 edges [2024-09-21 12:47:25,889 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:47:25,889 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:47:25,889 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:47:25,889 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:47:25,890 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:25,901 INFO L101 BaseMinimizeStates]: Removed 25 edges and 9 locations by large block encoding [2024-09-21 12:47:25,901 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:25,902 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:47:25,902 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:47:25,902 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:47:25,902 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2024-09-21 12:47:25,912 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-21 12:47:25,912 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:47:25,913 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:47:25,913 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:47:25,914 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:47:25,914 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:25,919 INFO L101 BaseMinimizeStates]: Removed 7 edges and 2 locations by large block encoding [2024-09-21 12:47:25,919 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:25,920 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:47:25,920 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:47:25,920 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:47:25,920 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 12:47:25,921 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) [2024-09-21 12:47:25,926 INFO L158 Benchmark]: Toolchain (without parser) took 753.54ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 61.4MB in the beginning and 93.6MB in the end (delta: -32.2MB). Peak memory consumption was 870.9kB. Max. memory is 16.1GB. [2024-09-21 12:47:25,927 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 134.2MB. Free memory is still 96.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:25,928 INFO L158 Benchmark]: Witness Parser took 0.86ms. Allocated memory is still 134.2MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:25,928 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.94ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 61.2MB in the beginning and 134.3MB in the end (delta: -73.1MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2024-09-21 12:47:25,929 INFO L158 Benchmark]: Boogie Preprocessor took 43.66ms. Allocated memory is still 165.7MB. Free memory was 133.5MB in the beginning and 131.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:47:25,929 INFO L158 Benchmark]: RCFGBuilder took 273.04ms. Allocated memory is still 165.7MB. Free memory was 131.4MB in the beginning and 118.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-21 12:47:25,930 INFO L158 Benchmark]: Referee took 191.63ms. Allocated memory is still 165.7MB. Free memory was 118.8MB in the beginning and 93.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-09-21 12:47:25,932 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: * CDTParser took 0.40ms. Allocated memory is still 134.2MB. Free memory is still 96.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.86ms. Allocated memory is still 134.2MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.94ms. Allocated memory was 134.2MB in the beginning and 165.7MB in the end (delta: 31.5MB). Free memory was 61.2MB in the beginning and 134.3MB in the end (delta: -73.1MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.66ms. Allocated memory is still 165.7MB. Free memory was 133.5MB in the beginning and 131.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 273.04ms. Allocated memory is still 165.7MB. Free memory was 131.4MB in the beginning and 118.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 191.63ms. Allocated memory is still 165.7MB. Free memory was 118.8MB in the beginning and 93.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 12:47:25,952 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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-invgen/id_build.i.v+lhb-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-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-27b4987-m [2024-09-21 12:47:27,656 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 12:47:27,710 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-21 12:47:27,714 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 12:47:27,715 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 12:47:27,740 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 12:47:27,741 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 12:47:27,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 12:47:27,742 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 12:47:27,742 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 12:47:27,743 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 12:47:27,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 12:47:27,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 12:47:27,745 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 12:47:27,746 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 12:47:27,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 12:47:27,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 12:47:27,746 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 12:47:27,747 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 12:47:27,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 12:47:27,751 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 12:47:27,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 12:47:27,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 12:47:27,752 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-21 12:47:27,752 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-21 12:47:27,752 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 12:47:27,752 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-21 12:47:27,753 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 12:47:27,753 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 12:47:27,753 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 12:47:27,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 12:47:27,754 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 12:47:27,754 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 12:47:27,754 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 12:47:27,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 12:47:27,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:27,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 12:47:27,755 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 12:47:27,755 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 12:47:27,755 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-21 12:47:27,755 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-21 12:47:27,756 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 12:47:27,756 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 12:47:27,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 12:47:27,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 12:47:27,757 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-21 12:47:27,757 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 12:47:28,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 12:47:28,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 12:47:28,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 12:47:28,020 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 12:47:28,021 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 12:47:28,022 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/witness-2.1.yml [2024-09-21 12:47:28,064 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 12:47:28,065 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 12:47:28,065 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-21 12:47:29,282 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 12:47:29,426 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 12:47:29,427 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-21 12:47:29,433 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/d9dfd00fc/2c2ad15c005b456e9437483b8b5ab8e3/FLAG03f2a7bdb [2024-09-21 12:47:29,842 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/d9dfd00fc/2c2ad15c005b456e9437483b8b5ab8e3 [2024-09-21 12:47:29,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 12:47:29,843 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 12:47:29,846 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:29,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 12:47:29,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 12:47:29,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:28" (1/2) ... [2024-09-21 12:47:29,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1089d3ee and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:29, skipping insertion in model container [2024-09-21 12:47:29,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:28" (1/2) ... [2024-09-21 12:47:29,852 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@d934484 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:29, skipping insertion in model container [2024-09-21 12:47:29,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:29" (2/2) ... [2024-09-21 12:47:29,853 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1089d3ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:29, skipping insertion in model container [2024-09-21 12:47:29,853 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:29" (2/2) ... [2024-09-21 12:47:29,862 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 12:47:29,862 INFO L1541 ArrayList]: Location invariant before [L39-L89] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-21 12:47:29,862 INFO L1541 ArrayList]: Location invariant before [L23-L101] ((\old(__return_100) == __return_100) && (0 <= main__i)) [2024-09-21 12:47:29,862 INFO L1541 ArrayList]: Location invariant before [L55-L86] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-21 12:47:29,878 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 12:47:30,005 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-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-21 12:47:30,013 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-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-21 12:47:30,016 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-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2024-09-21 12:47:30,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:30,029 INFO L200 MainTranslator]: Completed pre-run [2024-09-21 12:47:30,044 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-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-21 12:47:30,046 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-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-21 12:47:30,047 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-invgen/id_build.i.v+lhb-reducer.c[1375,1388] Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-21 12:47:30,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:30,078 INFO L204 MainTranslator]: Completed translation [2024-09-21 12:47:30,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:30 WrapperNode [2024-09-21 12:47:30,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:30,079 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 12:47:30,079 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 12:47:30,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 12:47:30,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:30" (1/1) ... [2024-09-21 12:47:30,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:30" (1/1) ... [2024-09-21 12:47:30,094 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:30" (1/1) ... [2024-09-21 12:47:30,103 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]. [2024-09-21 12:47:30,103 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:30" (1/1) ... [2024-09-21 12:47:30,104 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:30" (1/1) ... [2024-09-21 12:47:30,108 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:30" (1/1) ... [2024-09-21 12:47:30,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:30" (1/1) ... [2024-09-21 12:47:30,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:30" (1/1) ... [2024-09-21 12:47:30,111 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:30" (1/1) ... [2024-09-21 12:47:30,112 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 12:47:30,113 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 12:47:30,113 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 12:47:30,113 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 12:47:30,114 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:30" (1/1) ... [2024-09-21 12:47:30,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:30,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 12:47:30,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-21 12:47:30,138 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-21 12:47:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 12:47:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 12:47:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 12:47:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 12:47:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 12:47:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 12:47:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 12:47:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 12:47:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 12:47:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 12:47:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 12:47:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 12:47:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 12:47:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 12:47:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-21 12:47:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 12:47:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-21 12:47:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-21 12:47:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 12:47:30,238 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 12:47:30,242 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 12:47:30,394 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 12:47:30,417 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 12:47:30,418 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-21 12:47:30,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:30 BoogieIcfgContainer [2024-09-21 12:47:30,418 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 12:47:30,419 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 12:47:30,419 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 12:47:30,419 INFO L274 PluginConnector]: Referee initialized [2024-09-21 12:47:30,420 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:28" (1/4) ... [2024-09-21 12:47:30,420 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4095624f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:47:30, skipping insertion in model container [2024-09-21 12:47:30,420 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 12:47:29" (2/4) ... [2024-09-21 12:47:30,420 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4095624f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:47:30, skipping insertion in model container [2024-09-21 12:47:30,420 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:30" (3/4) ... [2024-09-21 12:47:30,421 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4095624f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:47:30, skipping insertion in model container [2024-09-21 12:47:30,421 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:30" (4/4) ... [2024-09-21 12:47:30,422 INFO L79 RefereeObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2024-09-21 12:47:30,424 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 12:47:30,425 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-21 12:47:30,425 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-21 12:47:30,425 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-21 12:47:30,425 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-21 12:47:30,426 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr5ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-21 12:47:30,426 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 7 edges. [2024-09-21 12:47:30,426 INFO L131 InvariantChecker]: Will check 6 loop-free subgraphs from procedure entry to error location [2024-09-21 12:47:30,478 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-21 12:47:30,479 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:47:30,480 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:47:30,480 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:47:30,481 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:47:30,482 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:30,561 INFO L101 BaseMinimizeStates]: Removed 27 edges and 8 locations by large block encoding [2024-09-21 12:47:30,563 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:30,564 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:47:30,565 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:47:30,565 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:47:30,566 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 10 edges [2024-09-21 12:47:30,577 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-21 12:47:30,579 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:47:30,579 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:47:30,579 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:47:30,580 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:47:30,580 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:30,607 INFO L101 BaseMinimizeStates]: Removed 24 edges and 8 locations by large block encoding [2024-09-21 12:47:30,608 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:30,609 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:47:30,609 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:47:30,609 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:47:30,609 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 9 edges [2024-09-21 12:47:30,619 INFO L314 BlockEncoder]: Initial Icfg 14 locations, 16 edges [2024-09-21 12:47:30,623 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:47:30,623 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:47:30,623 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:47:30,623 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:47:30,623 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:30,641 INFO L101 BaseMinimizeStates]: Removed 25 edges and 9 locations by large block encoding [2024-09-21 12:47:30,642 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:30,642 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:47:30,643 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:47:30,643 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:47:30,643 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2024-09-21 12:47:30,648 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-21 12:47:30,650 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:47:30,650 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:47:30,650 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:47:30,650 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:47:30,651 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:30,658 INFO L101 BaseMinimizeStates]: Removed 7 edges and 2 locations by large block encoding [2024-09-21 12:47:30,660 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:30,660 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:47:30,660 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:47:30,660 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:47:30,660 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 12:47:30,661 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) [2024-09-21 12:47:30,664 INFO L158 Benchmark]: Toolchain (without parser) took 820.49ms. Allocated memory is still 88.1MB. Free memory was 55.3MB in the beginning and 42.0MB in the end (delta: 13.3MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-09-21 12:47:30,666 INFO L158 Benchmark]: Witness Parser took 0.27ms. Allocated memory is still 56.6MB. Free memory was 35.7MB in the beginning and 35.7MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:30,667 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 56.6MB. Free memory was 33.7MB in the beginning and 33.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:30,668 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.47ms. Allocated memory is still 88.1MB. Free memory was 55.0MB in the beginning and 62.6MB in the end (delta: -7.5MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2024-09-21 12:47:30,668 INFO L158 Benchmark]: Boogie Preprocessor took 33.95ms. Allocated memory is still 88.1MB. Free memory was 62.6MB in the beginning and 60.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:47:30,669 INFO L158 Benchmark]: RCFGBuilder took 305.06ms. Allocated memory is still 88.1MB. Free memory was 60.1MB in the beginning and 45.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 12:47:30,670 INFO L158 Benchmark]: Referee took 244.54ms. Allocated memory is still 88.1MB. Free memory was 45.8MB in the beginning and 42.0MB in the end (delta: 3.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2024-09-21 12:47:30,671 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 0.27ms. Allocated memory is still 56.6MB. Free memory was 35.7MB in the beginning and 35.7MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.11ms. Allocated memory is still 56.6MB. Free memory was 33.7MB in the beginning and 33.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.47ms. Allocated memory is still 88.1MB. Free memory was 55.0MB in the beginning and 62.6MB in the end (delta: -7.5MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.95ms. Allocated memory is still 88.1MB. Free memory was 62.6MB in the beginning and 60.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 305.06ms. Allocated memory is still 88.1MB. Free memory was 60.1MB in the beginning and 45.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 244.54ms. Allocated memory is still 88.1MB. Free memory was 45.8MB in the beginning and 42.0MB in the end (delta: 3.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 12:47:30,694 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