This is Ultimate 0.2.4-tmp.dk.referee-eval-6908dde-m [2024-09-25 00:27:33,067 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:27:33,124 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 00:27:33,128 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:27:33,129 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:27:33,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:27:33,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:27:33,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:27:33,166 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:27:33,167 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:27:33,168 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:27:33,168 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:27:33,169 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:27:33,169 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:27:33,171 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:27:33,171 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:27:33,171 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:27:33,172 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:27:33,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 00:27:33,172 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:27:33,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:27:33,176 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:27:33,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:27:33,177 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:27:33,177 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:27:33,177 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:27:33,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:27:33,178 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:27:33,178 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:27:33,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:27:33,179 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:27:33,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:27:33,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:27:33,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:33,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:27:33,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:27:33,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:27:33,182 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 00:27:33,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 00:27:33,182 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:27:33,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:27:33,183 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:27:33,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:27:33,183 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:27:33,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:27:33,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:27:33,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:27:33,474 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:27:33,476 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:27:33,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml [2024-09-25 00:27:33,564 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:27:33,565 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:27:33,568 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-25 00:27:35,082 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:27:35,258 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:27:35,259 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-25 00:27:35,268 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/9bc175735/324489d1ba1c447ea681b80fdb8eea8f/FLAGc0d23059e [2024-09-25 00:27:35,656 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/9bc175735/324489d1ba1c447ea681b80fdb8eea8f [2024-09-25 00:27:35,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:27:35,658 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:27:35,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:35,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:27:35,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:27:35,666 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 00:27:35,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7708c5e 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 00:27:35,667 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 00:27:35,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5d266140 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 00:27:35,669 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:35" (2/2) ... [2024-09-25 00:27:35,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7708c5e 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 00:27:35,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:35" (2/2) ... [2024-09-25 00:27:35,678 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:27:35,679 INFO L1541 ArrayList]: Location invariant before [L54-L78] ((((((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 00:27:35,701 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:27:35,906 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.p+lhb-reducer.c[1444,1457] [2024-09-25 00:27:35,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:35,922 INFO L200 MainTranslator]: Completed pre-run [2024-09-25 00:27:35,950 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.p+lhb-reducer.c[1444,1457] Start Parsing Local [2024-09-25 00:27:35,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:36,002 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:27:36,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:36 WrapperNode [2024-09-25 00:27:36,003 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:36,003 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:27:36,004 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:27:36,004 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:27:36,015 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 00:27:36,015 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 00:27:36,022 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 00:27:36,035 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 00:27:36,035 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 00:27:36,035 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 00:27:36,039 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 00:27:36,041 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 00:27:36,042 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 00:27:36,043 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 00:27:36,045 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:27:36,046 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:27:36,046 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:27:36,046 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:27:36,049 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 00:27:36,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:36,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:27:36,077 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 00:27:36,079 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 00:27:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:27:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:27:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:27:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 00:27:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:27:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:27:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:27:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:27:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:27:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 00:27:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 00:27:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 00:27:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:27:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:27:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-25 00:27:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:27:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-25 00:27:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-25 00:27:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:27:36,180 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:27:36,182 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:27:36,329 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:27:36,360 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:27:36,361 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 00:27:36,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:36 BoogieIcfgContainer [2024-09-25 00:27:36,361 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:27:36,362 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:27:36,362 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:27:36,363 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:27:36,363 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 00:27:36,364 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@572d4c67 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 00:27:36,364 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:27:35" (2/4) ... [2024-09-25 00:27:36,364 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@572d4c67 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 00:27:36,364 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 00:27:36,364 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@572d4c67 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 00:27:36,365 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 00:27:36,366 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-09-25 00:27:36,369 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 00:27:36,369 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-09-25 00:27:36,370 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-09-25 00:27:36,370 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-25 00:27:36,417 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 11 edges [2024-09-25 00:27:36,422 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:36,422 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:36,423 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:36,424 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:36,426 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:36,476 INFO L101 BaseMinimizeStates]: Removed 18 edges and 8 locations by large block encoding [2024-09-25 00:27:36,477 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:36,477 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:36,478 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:36,478 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:36,479 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 00:27:36,482 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 00:27:36,486 INFO L158 Benchmark]: Toolchain (without parser) took 827.09ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 79.6MB in the beginning and 152.4MB in the end (delta: -72.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:36,486 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 155.2MB. Free memory was 106.4MB in the beginning and 106.2MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:36,487 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 155.2MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:36,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.70ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 79.4MB in the beginning and 177.6MB in the end (delta: -98.1MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2024-09-25 00:27:36,488 INFO L158 Benchmark]: Boogie Preprocessor took 41.83ms. Allocated memory is still 207.6MB. Free memory was 177.6MB in the beginning and 175.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 00:27:36,488 INFO L158 Benchmark]: RCFGBuilder took 315.33ms. Allocated memory is still 207.6MB. Free memory was 175.5MB in the beginning and 160.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 00:27:36,489 INFO L158 Benchmark]: Referee took 122.23ms. Allocated memory is still 207.6MB. Free memory was 160.8MB in the beginning and 152.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-25 00:27:36,491 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 0.20ms. Allocated memory is still 155.2MB. Free memory was 106.4MB in the beginning and 106.2MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.28ms. Allocated memory is still 155.2MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.70ms. Allocated memory was 155.2MB in the beginning and 207.6MB in the end (delta: 52.4MB). Free memory was 79.4MB in the beginning and 177.6MB in the end (delta: -98.1MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.83ms. Allocated memory is still 207.6MB. Free memory was 177.6MB in the beginning and 175.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 315.33ms. Allocated memory is still 207.6MB. Free memory was 175.5MB in the beginning and 160.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 122.23ms. Allocated memory is still 207.6MB. Free memory was 160.8MB in the beginning and 152.4MB in the end (delta: 8.4MB). 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 00:27:36,517 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 00:27:38,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:27:38,869 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-25 00:27:38,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:27:38,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:27:38,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:27:38,900 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:27:38,900 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:27:38,901 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:27:38,902 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:27:38,902 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:27:38,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:27:38,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:27:38,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:27:38,904 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:27:38,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:27:38,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:27:38,905 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:27:38,905 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:27:38,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:27:38,906 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:27:38,907 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:27:38,907 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:27:38,907 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-25 00:27:38,908 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-25 00:27:38,908 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:27:38,908 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-25 00:27:38,909 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:27:38,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:27:38,909 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:27:38,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:27:38,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:27:38,910 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:27:38,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:27:38,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:27:38,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:38,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:27:38,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:27:38,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:27:38,913 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-25 00:27:38,913 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-25 00:27:38,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:27:38,914 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:27:38,914 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:27:38,914 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:27:38,915 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-25 00:27:38,915 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:27:39,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:27:39,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:27:39,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:27:39,320 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:27:39,324 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:27:39,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-25 00:27:40,963 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:27:41,187 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:27:41,188 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-25 00:27:41,199 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/d69acf3f7/b42c0cfbfb5849b5b29d518f3d34a696/FLAG2f7d39fcb [2024-09-25 00:27:41,555 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/d69acf3f7/b42c0cfbfb5849b5b29d518f3d34a696 [2024-09-25 00:27:41,558 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:27:41,561 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:27:41,562 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml [2024-09-25 00:27:41,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:27:41,619 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:27:41,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:41,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:27:41,626 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:27:41,628 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:41" (1/2) ... [2024-09-25 00:27:41,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28af03f6 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 00:27:41,629 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:41" (1/2) ... [2024-09-25 00:27:41,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@56947379 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 00:27:41,636 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 00:27:41,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28af03f6 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 00:27:41,636 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 00:27:41,647 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:27:41,650 INFO L1541 ArrayList]: Location invariant before [L54-L78] ((((((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 00:27:41,673 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:27:41,866 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.p+lhb-reducer.c[1444,1457] [2024-09-25 00:27:41,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:41,902 INFO L200 MainTranslator]: Completed pre-run [2024-09-25 00:27:41,927 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.p+lhb-reducer.c[1444,1457] Start Parsing Local [2024-09-25 00:27:41,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:41,982 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:27:41,983 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:41 WrapperNode [2024-09-25 00:27:41,983 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:41,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:27:41,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:27:41,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:27:41,996 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 12:27:41" (1/1) ... [2024-09-25 00:27:41,997 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 12:27:41" (1/1) ... [2024-09-25 00:27:42,004 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 12:27:41" (1/1) ... [2024-09-25 00:27:42,025 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 00:27:42,025 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 12:27:41" (1/1) ... [2024-09-25 00:27:42,026 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 12:27:41" (1/1) ... [2024-09-25 00:27:42,037 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 12:27:41" (1/1) ... [2024-09-25 00:27:42,039 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 12:27:41" (1/1) ... [2024-09-25 00:27:42,042 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 12:27:41" (1/1) ... [2024-09-25 00:27:42,043 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 12:27:41" (1/1) ... [2024-09-25 00:27:42,045 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:27:42,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:27:42,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:27:42,051 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:27:42,052 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 12:27:41" (1/1) ... [2024-09-25 00:27:42,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:42,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:27:42,082 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 00:27:42,085 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 00:27:42,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:27:42,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:27:42,137 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:27:42,137 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 00:27:42,137 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:27:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:27:42,137 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:27:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:27:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:27:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 00:27:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 00:27:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 00:27:42,138 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:27:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:27:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-25 00:27:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:27:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-25 00:27:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-25 00:27:42,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:27:42,229 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:27:42,232 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:27:44,751 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:27:44,797 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:27:44,797 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 00:27:44,798 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:44 BoogieIcfgContainer [2024-09-25 00:27:44,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:27:44,799 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:27:44,799 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:27:44,800 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:27:44,800 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:27:41" (1/4) ... [2024-09-25 00:27:44,800 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@64129ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:27:44, skipping insertion in model container [2024-09-25 00:27:44,801 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 00:27:44,801 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@64129ba0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:44, skipping insertion in model container [2024-09-25 00:27:44,801 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 12:27:41" (3/4) ... [2024-09-25 00:27:44,801 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@64129ba0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:44, skipping insertion in model container [2024-09-25 00:27:44,802 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 12:27:44" (4/4) ... [2024-09-25 00:27:44,803 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-09-25 00:27:44,811 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 00:27:44,812 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-09-25 00:27:44,812 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-09-25 00:27:44,812 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-25 00:27:44,874 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 11 edges [2024-09-25 00:27:44,876 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:44,877 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:44,877 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:44,878 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:44,880 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:44,965 INFO L101 BaseMinimizeStates]: Removed 18 edges and 8 locations by large block encoding [2024-09-25 00:27:44,968 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:44,968 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:44,968 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:44,969 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:44,970 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 00:27:44,971 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 00:27:44,977 INFO L158 Benchmark]: Toolchain (without parser) took 3357.84ms. Allocated memory is still 69.2MB. Free memory was 38.1MB in the beginning and 33.6MB in the end (delta: 4.4MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2024-09-25 00:27:44,978 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 48.2MB. Free memory was 28.9MB in the beginning and 28.8MB in the end (delta: 60.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:44,978 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 69.2MB. Free memory is still 39.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:44,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.29ms. Allocated memory is still 69.2MB. Free memory was 37.8MB in the beginning and 43.4MB in the end (delta: -5.5MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2024-09-25 00:27:44,981 INFO L158 Benchmark]: Boogie Preprocessor took 64.98ms. Allocated memory is still 69.2MB. Free memory was 43.4MB in the beginning and 41.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-25 00:27:44,981 INFO L158 Benchmark]: RCFGBuilder took 2748.17ms. Allocated memory is still 69.2MB. Free memory was 41.0MB in the beginning and 45.4MB in the end (delta: -4.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2024-09-25 00:27:44,982 INFO L158 Benchmark]: Referee took 176.66ms. Allocated memory is still 69.2MB. Free memory was 45.4MB in the beginning and 33.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-25 00:27:44,988 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 0.23ms. Allocated memory is still 48.2MB. Free memory was 28.9MB in the beginning and 28.8MB in the end (delta: 60.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 69.2MB. Free memory is still 39.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.29ms. Allocated memory is still 69.2MB. Free memory was 37.8MB in the beginning and 43.4MB in the end (delta: -5.5MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.98ms. Allocated memory is still 69.2MB. Free memory was 43.4MB in the beginning and 41.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2748.17ms. Allocated memory is still 69.2MB. Free memory was 41.0MB in the beginning and 45.4MB in the end (delta: -4.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Referee took 176.66ms. Allocated memory is still 69.2MB. Free memory was 45.4MB in the beginning and 33.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 00:27:45,032 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...