This is Ultimate 0.2.4-tmp.dk.referee-eval-6908dde-m [2024-09-25 00:27:33,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:27:33,315 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 00:27:33,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:27:33,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:27:33,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:27:33,350 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:27:33,351 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:27:33,352 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:27:33,352 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:27:33,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:27:33,353 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:27:33,354 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:27:33,355 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:27:33,356 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:27:33,356 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:27:33,356 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:27:33,357 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:27:33,357 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 00:27:33,357 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:27:33,357 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:27:33,358 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:27:33,358 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:27:33,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:27:33,359 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:27:33,359 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:27:33,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:27:33,360 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:27:33,360 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:27:33,360 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:27:33,361 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:27:33,361 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:27:33,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:27:33,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:33,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:27:33,362 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:27:33,362 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:27:33,362 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 00:27:33,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 00:27:33,363 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:27:33,363 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:27:33,363 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:27:33,364 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:27:33,364 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:27:33,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:27:33,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:27:33,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:27:33,664 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:27:33,668 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:27:33,670 INFO L431 ainManager$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 [2024-09-25 00:27:33,775 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:27:33,775 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:27:33,782 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-25 00:27:35,315 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:27:35,500 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:27:35,500 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-25 00:27:35,507 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/dd0568c4e/549decf6be7240339fc43eda4114b125/FLAG246912834 [2024-09-25 00:27:35,899 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/dd0568c4e/549decf6be7240339fc43eda4114b125 [2024-09-25 00:27:35,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:27:35,900 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:27:35,902 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:35,902 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:27:35,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:27:35,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:33" (1/2) ... [2024-09-25 00:27:35,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ffc5a2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:35, skipping insertion in model container [2024-09-25 00:27:35,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:33" (1/2) ... [2024-09-25 00:27:35,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21014799 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:35, skipping insertion in model container [2024-09-25 00:27:35,914 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:35" (2/2) ... [2024-09-25 00:27:35,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ffc5a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:35, skipping insertion in model container [2024-09-25 00:27:35,914 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:35" (2/2) ... [2024-09-25 00:27:35,928 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:27:35,929 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))) [2024-09-25 00:27:35,945 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:27:36,121 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-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] [2024-09-25 00:27:36,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:36,158 INFO L200 MainTranslator]: Completed pre-run [2024-09-25 00:27:36,175 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-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-25 00:27:36,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:36,260 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:27:36,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:36 WrapperNode [2024-09-25 00:27:36,261 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:36,262 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:27:36,262 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:27:36,263 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:27:36,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,304 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,320 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-25 00:27:36,323 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,326 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,328 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,333 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:27:36,336 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:27:36,336 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:27:36,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:27:36,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:36,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:27:36,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-25 00:27:36,378 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-25 00:27:36,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:27:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:27:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:27:36,421 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 00:27:36,423 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:27:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:27:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:27:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:27:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:27:36,423 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 00:27:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 00:27:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 00:27:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:27:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:27:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-25 00:27:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:27:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-25 00:27:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-25 00:27:36,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:27:36,490 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:27:36,492 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:27:36,601 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:27:36,630 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:27:36,631 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 00:27:36,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:36 BoogieIcfgContainer [2024-09-25 00:27:36,631 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:27:36,632 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:27:36,632 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:27:36,633 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:27:36,633 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:33" (1/4) ... [2024-09-25 00:27:36,633 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5e375a7c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:36, skipping insertion in model container [2024-09-25 00:27:36,634 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:27:35" (2/4) ... [2024-09-25 00:27:36,634 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5e375a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:27:36, skipping insertion in model container [2024-09-25 00:27:36,634 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:36" (3/4) ... [2024-09-25 00:27:36,634 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5e375a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:27:36, skipping insertion in model container [2024-09-25 00:27:36,634 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:36" (4/4) ... [2024-09-25 00:27:36,636 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2024-09-25 00:27:36,640 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 00:27:36,641 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-25 00:27:36,641 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-25 00:27:36,642 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-25 00:27:36,698 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-25 00:27:36,699 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:36,699 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:36,700 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:36,701 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:36,703 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:36,728 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 00:27:36,729 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:36,730 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:36,730 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:36,730 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:36,731 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 00:27:36,733 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) [2024-09-25 00:27:36,738 INFO L158 Benchmark]: Toolchain (without parser) took 836.52ms. Allocated memory is still 172.0MB. Free memory was 98.4MB in the beginning and 124.1MB in the end (delta: -25.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:36,738 INFO L158 Benchmark]: Witness Parser took 0.32ms. Allocated memory is still 172.0MB. Free memory was 125.8MB in the beginning and 125.6MB in the end (delta: 156.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 00:27:36,739 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory is still 143.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:36,739 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.84ms. Allocated memory is still 172.0MB. Free memory was 98.1MB in the beginning and 140.9MB in the end (delta: -42.8MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2024-09-25 00:27:36,740 INFO L158 Benchmark]: Boogie Preprocessor took 73.42ms. Allocated memory is still 172.0MB. Free memory was 140.9MB in the beginning and 142.0MB in the end (delta: -1.1MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2024-09-25 00:27:36,741 INFO L158 Benchmark]: RCFGBuilder took 294.96ms. Allocated memory is still 172.0MB. Free memory was 142.0MB in the beginning and 129.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 00:27:36,741 INFO L158 Benchmark]: Referee took 104.31ms. Allocated memory is still 172.0MB. Free memory was 129.4MB in the beginning and 124.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-25 00:27:36,743 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 0.32ms. Allocated memory is still 172.0MB. Free memory was 125.8MB in the beginning and 125.6MB in the end (delta: 156.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CDTParser took 0.18ms. Allocated memory is still 172.0MB. Free memory is still 143.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.84ms. Allocated memory is still 172.0MB. Free memory was 98.1MB in the beginning and 140.9MB in the end (delta: -42.8MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.42ms. Allocated memory is still 172.0MB. Free memory was 140.9MB in the beginning and 142.0MB in the end (delta: -1.1MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * RCFGBuilder took 294.96ms. Allocated memory is still 172.0MB. Free memory was 142.0MB in the beginning and 129.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 104.31ms. Allocated memory is still 172.0MB. Free memory was 129.4MB in the beginning and 124.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 00:27:36,777 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... ### Bit-precise run ### This is Ultimate 0.2.4-tmp.dk.referee-eval-6908dde-m [2024-09-25 00:27:39,192 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:27:39,270 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-25 00:27:39,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:27:39,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:27:39,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:27:39,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:27:39,306 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:27:39,306 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:27:39,307 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:27:39,307 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:27:39,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:27:39,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:27:39,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:27:39,309 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:27:39,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:27:39,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:27:39,314 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:27:39,314 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:27:39,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:27:39,315 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:27:39,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:27:39,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:27:39,317 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-25 00:27:39,317 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-25 00:27:39,317 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:27:39,318 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-25 00:27:39,318 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:27:39,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:27:39,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:27:39,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:27:39,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:27:39,319 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:27:39,320 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:27:39,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:27:39,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:39,321 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:27:39,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:27:39,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:27:39,322 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-25 00:27:39,322 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-25 00:27:39,324 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:27:39,324 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:27:39,324 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:27:39,325 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:27:39,325 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-25 00:27:39,325 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:27:39,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:27:39,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:27:39,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:27:39,676 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:27:39,677 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:27:39,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-25 00:27:41,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:27:41,659 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:27:41,659 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.v+cfa-reducer.c [2024-09-25 00:27:41,669 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/856d83985/b66b6c5fa01645fd9a5a6aef0524d6cb/FLAGf330d81c6 [2024-09-25 00:27:41,688 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/856d83985/b66b6c5fa01645fd9a5a6aef0524d6cb [2024-09-25 00:27:41,691 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:27:41,692 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:27:41,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-25 00:27:41,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:27:41,746 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:27:41,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:41,747 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:27:41,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:27:41,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:41" (1/2) ... [2024-09-25 00:27:41,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a837a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:41, skipping insertion in model container [2024-09-25 00:27:41,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:41" (1/2) ... [2024-09-25 00:27:41,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@53f2fe03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:41, skipping insertion in model container [2024-09-25 00:27:41,755 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:41" (2/2) ... [2024-09-25 00:27:41,756 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a837a13 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:41, skipping insertion in model container [2024-09-25 00:27:41,756 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:41" (2/2) ... [2024-09-25 00:27:41,763 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:27:41,764 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))) [2024-09-25 00:27:41,784 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:27:41,966 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-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] [2024-09-25 00:27:41,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:42,000 INFO L200 MainTranslator]: Completed pre-run [2024-09-25 00:27:42,020 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-new/gauss_sum.i.v+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-25 00:27:42,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:42,079 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:27:42,080 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:42 WrapperNode [2024-09-25 00:27:42,081 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:42,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:27:42,083 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:27:42,083 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:27:42,098 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 25.09 12:27:42" (1/1) ... [2024-09-25 00:27:42,098 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 25.09 12:27:42" (1/1) ... [2024-09-25 00:27:42,107 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 25.09 12:27:42" (1/1) ... [2024-09-25 00:27:42,128 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-25 00:27:42,128 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 25.09 12:27:42" (1/1) ... [2024-09-25 00:27:42,129 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 25.09 12:27:42" (1/1) ... [2024-09-25 00:27:42,139 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 25.09 12:27:42" (1/1) ... [2024-09-25 00:27:42,141 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 25.09 12:27:42" (1/1) ... [2024-09-25 00:27:42,147 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 25.09 12:27:42" (1/1) ... [2024-09-25 00:27:42,148 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 25.09 12:27:42" (1/1) ... [2024-09-25 00:27:42,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:27:42,152 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:27:42,153 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:27:42,153 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:27:42,154 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 25.09 12:27:42" (1/1) ... [2024-09-25 00:27:42,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:42,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:27:42,187 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-25 00:27:42,193 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-25 00:27:42,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:27:42,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:27:42,248 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:27:42,248 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 00:27:42,248 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:27:42,248 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:27:42,248 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:27:42,248 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:27:42,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:27:42,249 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 00:27:42,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 00:27:42,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 00:27:42,249 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:27:42,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:27:42,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-25 00:27:42,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:27:42,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-25 00:27:42,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-25 00:27:42,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:27:42,334 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:27:42,359 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:27:46,716 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:27:46,792 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:27:46,793 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 00:27:46,793 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:46 BoogieIcfgContainer [2024-09-25 00:27:46,793 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:27:46,794 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:27:46,794 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:27:46,795 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:27:46,795 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:27:41" (1/4) ... [2024-09-25 00:27:46,795 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@27681ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:27:46, skipping insertion in model container [2024-09-25 00:27:46,796 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:41" (2/4) ... [2024-09-25 00:27:46,796 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@27681ac8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:46, skipping insertion in model container [2024-09-25 00:27:46,796 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 25.09 12:27:42" (3/4) ... [2024-09-25 00:27:46,800 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@27681ac8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:46, skipping insertion in model container [2024-09-25 00:27:46,801 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:46" (4/4) ... [2024-09-25 00:27:46,807 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.v+cfa-reducer.c [2024-09-25 00:27:46,815 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 00:27:46,816 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-25 00:27:46,816 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-25 00:27:46,817 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-25 00:27:46,881 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-25 00:27:46,882 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:46,883 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:46,883 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:46,884 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:46,886 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:46,909 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 00:27:46,911 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:46,911 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:46,911 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:46,912 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:46,913 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 00:27:46,913 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) [2024-09-25 00:27:46,920 INFO L158 Benchmark]: Toolchain (without parser) took 5173.50ms. Allocated memory is still 92.3MB. Free memory was 68.5MB in the beginning and 55.5MB in the end (delta: 13.0MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2024-09-25 00:27:46,920 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 58.7MB. Free memory was 39.7MB in the beginning and 39.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:46,921 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 92.3MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:46,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.39ms. Allocated memory is still 92.3MB. Free memory was 68.2MB in the beginning and 54.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 00:27:46,922 INFO L158 Benchmark]: Boogie Preprocessor took 68.63ms. Allocated memory is still 92.3MB. Free memory was 54.6MB in the beginning and 52.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 00:27:46,923 INFO L158 Benchmark]: RCFGBuilder took 4640.82ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 62.9MB in the end (delta: -10.7MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-09-25 00:27:46,923 INFO L158 Benchmark]: Referee took 124.19ms. Allocated memory is still 92.3MB. Free memory was 62.9MB in the beginning and 55.5MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-25 00:27:46,926 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 0.32ms. Allocated memory is still 58.7MB. Free memory was 39.7MB in the beginning and 39.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.17ms. Allocated memory is still 92.3MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.39ms. Allocated memory is still 92.3MB. Free memory was 68.2MB in the beginning and 54.6MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.63ms. Allocated memory is still 92.3MB. Free memory was 54.6MB in the beginning and 52.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4640.82ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 62.9MB in the end (delta: -10.7MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Referee took 124.19ms. Allocated memory is still 92.3MB. Free memory was 62.9MB in the beginning and 55.5MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 00:27:46,974 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...