./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1d5fa637 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-new/gauss_sum.i.v+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-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-dev-1d5fa63-m [2024-09-13 10:07:56,084 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:07:56,137 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-13 10:07:56,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:07:56,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:07:56,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:07:56,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:07:56,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:07:56,165 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:07:56,166 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:07:56,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:07:56,166 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:07:56,167 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:07:56,167 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:07:56,167 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:07:56,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:07:56,168 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:07:56,171 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:07:56,171 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 10:07:56,171 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:07:56,172 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:07:56,172 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:07:56,172 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:07:56,172 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:07:56,172 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:07:56,173 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:07:56,173 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:07:56,173 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:07:56,173 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:07:56,173 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:07:56,173 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:07:56,173 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:07:56,174 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:07:56,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:56,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:07:56,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:07:56,177 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:07:56,177 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 10:07:56,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 10:07:56,177 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:07:56,177 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:07:56,177 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:07:56,177 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:07:56,178 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:07:56,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:07:56,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:07:56,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:07:56,401 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:07:56,402 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:07:56,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-13 10:07:57,597 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:07:57,769 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:07:57,770 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-13 10:07:57,796 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/4202d2dc4/e90fd14c6cfe4a6eae66c19bb771078d/FLAG40925521b [2024-09-13 10:07:58,188 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/4202d2dc4/e90fd14c6cfe4a6eae66c19bb771078d [2024-09-13 10:07:58,190 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:07:58,191 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:07:58,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-13 10:07:58,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:07:58,230 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:07:58,231 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:58,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:07:58,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:07:58,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:58" (1/2) ... [2024-09-13 10:07:58,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5df3f0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:58, skipping insertion in model container [2024-09-13 10:07:58,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:58" (1/2) ... [2024-09-13 10:07:58,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3c638a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:58, skipping insertion in model container [2024-09-13 10:07:58,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:58" (2/2) ... [2024-09-13 10:07:58,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5df3f0ea and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:58, skipping insertion in model container [2024-09-13 10:07:58,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:58" (2/2) ... [2024-09-13 10:07:58,246 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:07:58,247 INFO L1541 ArrayList]: Location invariant before [L34-L58] ((((\old(__return_60) == __return_60) && ((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1)))) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-13 10:07:58,261 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:07:58,394 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] [2024-09-13 10:07:58,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:58,415 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 10:07:58,426 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-13 10:07:58,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:58,459 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:07:58,460 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:58 WrapperNode [2024-09-13 10:07:58,460 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:58,461 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:07:58,461 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:07:58,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:07:58,470 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,471 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,477 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,491 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]. [2024-09-13 10:07:58,491 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,492 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,494 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,495 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,496 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,496 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:07:58,498 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:07:58,498 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:07:58,498 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:07:58,499 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 13.09 10:07:58" (1/1) ... [2024-09-13 10:07:58,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:58,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:07:58,525 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) [2024-09-13 10:07:58,528 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 [2024-09-13 10:07:58,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:07:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:07:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:07:58,562 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 10:07:58,563 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:07:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:07:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:07:58,564 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:07:58,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:07:58,564 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 10:07:58,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 10:07:58,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 10:07:58,564 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:07:58,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:07:58,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 10:07:58,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:07:58,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-13 10:07:58,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-13 10:07:58,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:07:58,618 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:07:58,620 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:07:58,716 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:07:58,750 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:07:58,751 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 10:07:58,751 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:58 BoogieIcfgContainer [2024-09-13 10:07:58,752 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:07:58,753 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:07:58,753 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:07:58,754 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:07:58,754 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:07:58" (1/4) ... [2024-09-13 10:07:58,755 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4e16635e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:07:58, skipping insertion in model container [2024-09-13 10:07:58,755 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:58" (2/4) ... [2024-09-13 10:07:58,755 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4e16635e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:07:58, skipping insertion in model container [2024-09-13 10:07:58,755 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 13.09 10:07:58" (3/4) ... [2024-09-13 10:07:58,755 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4e16635e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:07:58, skipping insertion in model container [2024-09-13 10:07:58,756 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:58" (4/4) ... [2024-09-13 10:07:58,757 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2024-09-13 10:07:58,760 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 10:07:58,760 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-13 10:07:58,760 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-13 10:07:58,761 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 10:07:58,793 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 10:07:58,798 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:07:58,798 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:07:58,799 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:07:58,800 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:07:58,802 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:58,824 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 10:07:58,824 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:58,827 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:07:58,827 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:07:58,828 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:07:58,828 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 10:07:58,829 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:144) 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) [2024-09-13 10:07:58,832 INFO L158 Benchmark]: Toolchain (without parser) took 601.62ms. Allocated memory is still 176.2MB. Free memory was 146.1MB in the beginning and 111.8MB in the end (delta: 34.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-09-13 10:07:58,832 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:58,832 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:58,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.92ms. Allocated memory is still 176.2MB. Free memory was 145.4MB in the beginning and 132.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 10:07:58,833 INFO L158 Benchmark]: Boogie Preprocessor took 36.55ms. Allocated memory is still 176.2MB. Free memory was 132.8MB in the beginning and 130.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 10:07:58,834 INFO L158 Benchmark]: RCFGBuilder took 254.34ms. Allocated memory is still 176.2MB. Free memory was 130.7MB in the beginning and 118.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 10:07:58,835 INFO L158 Benchmark]: Referee took 77.90ms. Allocated memory is still 176.2MB. Free memory was 118.1MB in the beginning and 111.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-13 10:07:58,837 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 0.14ms. Allocated memory is still 176.2MB. Free memory is still 148.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 229.92ms. Allocated memory is still 176.2MB. Free memory was 145.4MB in the beginning and 132.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.55ms. Allocated memory is still 176.2MB. Free memory was 132.8MB in the beginning and 130.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 254.34ms. Allocated memory is still 176.2MB. Free memory was 130.7MB in the beginning and 118.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 77.90ms. Allocated memory is still 176.2MB. Free memory was 118.1MB in the beginning and 111.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 10:07:58,858 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-new/gauss_sum.i.v+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-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-dev-1d5fa63-m [2024-09-13 10:08:00,610 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:08:00,673 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-13 10:08:00,677 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:08:00,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:08:00,704 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:08:00,705 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:08:00,706 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:08:00,706 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:08:00,707 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:08:00,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:08:00,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:08:00,708 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:08:00,711 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:08:00,711 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:08:00,711 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:08:00,711 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:08:00,712 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:08:00,712 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:08:00,712 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:08:00,712 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:08:00,713 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:08:00,713 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:08:00,713 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-13 10:08:00,713 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-13 10:08:00,713 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:08:00,714 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-13 10:08:00,714 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:08:00,714 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:08:00,714 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:08:00,714 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:08:00,715 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:08:00,715 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:08:00,715 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:08:00,715 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:08:00,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:08:00,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:08:00,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:08:00,716 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:08:00,720 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-13 10:08:00,720 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-13 10:08:00,721 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:08:00,721 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:08:00,721 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:08:00,721 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:08:00,721 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-13 10:08:00,721 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:08:00,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:08:01,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:08:01,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:08:01,008 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:08:01,009 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:08:01,010 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-13 10:08:02,294 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:08:02,440 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:08:02,440 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-13 10:08:02,448 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/e84df17fa/141b580d02744466a5081b1d837b85cb/FLAG91fac8b3d [2024-09-13 10:08:02,859 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/e84df17fa/141b580d02744466a5081b1d837b85cb [2024-09-13 10:08:02,861 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:08:02,866 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:08:02,866 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-13 10:08:02,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:08:02,908 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:08:02,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:08:02,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:08:02,924 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:08:02,925 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:08:02" (1/2) ... [2024-09-13 10:08:02,925 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2baf5405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:08:02, skipping insertion in model container [2024-09-13 10:08:02,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:08:02" (1/2) ... [2024-09-13 10:08:02,929 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@69988948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:08:02, skipping insertion in model container [2024-09-13 10:08:02,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:08:02" (2/2) ... [2024-09-13 10:08:02,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2baf5405 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:02, skipping insertion in model container [2024-09-13 10:08:02,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:08:02" (2/2) ... [2024-09-13 10:08:02,937 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:08:02,938 INFO L1541 ArrayList]: Location invariant before [L34-L58] ((((\old(__return_60) == __return_60) && ((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1)))) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-13 10:08:02,952 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:08:03,080 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] [2024-09-13 10:08:03,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:08:03,099 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 10:08:03,113 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-13 10:08:03,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:08:03,152 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:08:03,153 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:03 WrapperNode [2024-09-13 10:08:03,153 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:08:03,154 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:08:03,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:08:03,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:08:03,163 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,163 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,169 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,183 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]. [2024-09-13 10:08:03,183 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,183 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,188 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,192 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,193 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,194 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:08:03,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:08:03,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:08:03,197 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:08:03,198 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 13.09 10:08:03" (1/1) ... [2024-09-13 10:08:03,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:08:03,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:08:03,221 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) [2024-09-13 10:08:03,223 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 [2024-09-13 10:08:03,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:08:03,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:08:03,260 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:08:03,260 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 10:08:03,260 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:08:03,260 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:08:03,260 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:08:03,260 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:08:03,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:08:03,260 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 10:08:03,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 10:08:03,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 10:08:03,261 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:08:03,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:08:03,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-13 10:08:03,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:08:03,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-13 10:08:03,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-13 10:08:03,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:08:03,332 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:08:03,335 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:08:07,536 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:08:07,566 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:08:07,568 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 10:08:07,568 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:08:07 BoogieIcfgContainer [2024-09-13 10:08:07,568 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:08:07,569 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:08:07,570 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:08:07,571 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:08:07,571 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:08:02" (1/4) ... [2024-09-13 10:08:07,571 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1041cd45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:08:07, skipping insertion in model container [2024-09-13 10:08:07,571 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:08:02" (2/4) ... [2024-09-13 10:08:07,571 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1041cd45 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:08:07, skipping insertion in model container [2024-09-13 10:08:07,572 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 13.09 10:08:03" (3/4) ... [2024-09-13 10:08:07,572 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1041cd45 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:08:07, skipping insertion in model container [2024-09-13 10:08:07,572 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:08:07" (4/4) ... [2024-09-13 10:08:07,573 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2024-09-13 10:08:07,576 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 10:08:07,577 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-13 10:08:07,577 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-13 10:08:07,577 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 10:08:07,619 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 10:08:07,620 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:08:07,621 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:08:07,621 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:08:07,622 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:08:07,623 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:08:07,645 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 10:08:07,647 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:08:07,649 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:08:07,649 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:08:07,650 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:08:07,650 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 10:08:07,650 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:144) 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) [2024-09-13 10:08:07,653 INFO L158 Benchmark]: Toolchain (without parser) took 4744.58ms. Allocated memory is still 69.2MB. Free memory was 32.2MB in the beginning and 31.9MB in the end (delta: 309.5kB). Peak memory consumption was 776.3kB. Max. memory is 16.1GB. [2024-09-13 10:08:07,654 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 52.4MB. Free memory was 35.0MB in the beginning and 34.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:08:07,654 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 69.2MB. Free memory is still 34.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:08:07,654 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.69ms. Allocated memory is still 69.2MB. Free memory was 50.1MB in the beginning and 36.1MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 10:08:07,655 INFO L158 Benchmark]: Boogie Preprocessor took 42.50ms. Allocated memory is still 69.2MB. Free memory was 36.1MB in the beginning and 34.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 10:08:07,655 INFO L158 Benchmark]: RCFGBuilder took 4371.54ms. Allocated memory is still 69.2MB. Free memory was 33.9MB in the beginning and 39.1MB in the end (delta: -5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-13 10:08:07,656 INFO L158 Benchmark]: Referee took 83.54ms. Allocated memory is still 69.2MB. Free memory was 39.1MB in the beginning and 31.9MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-13 10:08:07,658 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: * CDTParser took 0.29ms. Allocated memory is still 52.4MB. Free memory was 35.0MB in the beginning and 34.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.10ms. Allocated memory is still 69.2MB. Free memory is still 34.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.69ms. Allocated memory is still 69.2MB. Free memory was 50.1MB in the beginning and 36.1MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.50ms. Allocated memory is still 69.2MB. Free memory was 36.1MB in the beginning and 34.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4371.54ms. Allocated memory is still 69.2MB. Free memory was 33.9MB in the beginning and 39.1MB in the end (delta: -5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 83.54ms. Allocated memory is still 69.2MB. Free memory was 39.1MB in the beginning and 31.9MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 10:08:07,685 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