This is Ultimate 0.2.4-dev-1d5fa63-m [2024-09-13 10:07:56,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:07:56,669 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-13 10:07:56,676 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:07:56,677 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:07:56,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:07:56,704 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:07:56,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:07:56,705 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:07:56,706 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:07:56,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:07:56,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:07:56,708 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:07:56,710 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:07:56,710 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:07:56,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:07:56,711 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:07:56,711 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:07:56,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 10:07:56,712 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:07:56,712 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:07:56,714 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:07:56,715 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:07:56,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:07:56,715 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:07:56,716 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:07:56,716 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:07:56,716 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:07:56,716 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:07:56,717 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:07:56,717 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:07:56,717 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:07:56,717 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:07:56,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:56,718 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:07:56,718 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:07:56,718 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:07:56,718 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 10:07:56,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 10:07:56,719 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:07:56,719 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:07:56,721 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:07:56,721 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:07:56,721 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:07:56,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:07:56,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:07:57,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:07:57,003 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:07:57,003 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:07:57,005 INFO L431 ainManager$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 [2024-09-13 10:07:57,087 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:07:57,087 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:07:57,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-13 10:07:58,529 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:07:58,741 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:07:58,745 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-13 10:07:58,754 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/c8fda447d/1c950ee160fb49f4a35108597a98c36d/FLAGa51451054 [2024-09-13 10:07:58,770 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/c8fda447d/1c950ee160fb49f4a35108597a98c36d [2024-09-13 10:07:58,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:07:58,773 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:07:58,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:58,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:07:58,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:07:58,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:57" (1/2) ... [2024-09-13 10:07:58,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb5c841 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:58, skipping insertion in model container [2024-09-13 10:07:58,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:57" (1/2) ... [2024-09-13 10:07:58,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1757512 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:58, skipping insertion in model container [2024-09-13 10:07:58,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:58" (2/2) ... [2024-09-13 10:07:58,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb5c841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:58, skipping insertion in model container [2024-09-13 10:07:58,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:58" (2/2) ... [2024-09-13 10:07:58,797 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:07:58,798 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))) [2024-09-13 10:07:58,818 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:07:58,976 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2024-09-13 10:07:58,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:58,998 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 10:07:59,020 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] Start Parsing Local [2024-09-13 10:07:59,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:59,075 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:07:59,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:59 WrapperNode [2024-09-13 10:07:59,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:59,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:07:59,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:07:59,077 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:07:59,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:59" (1/1) ... [2024-09-13 10:07:59,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:59" (1/1) ... [2024-09-13 10:07:59,093 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:59" (1/1) ... [2024-09-13 10:07:59,118 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-13 10:07:59,118 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:59" (1/1) ... [2024-09-13 10:07:59,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:59" (1/1) ... [2024-09-13 10:07:59,122 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:59" (1/1) ... [2024-09-13 10:07:59,124 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:59" (1/1) ... [2024-09-13 10:07:59,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:59" (1/1) ... [2024-09-13 10:07:59,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:59" (1/1) ... [2024-09-13 10:07:59,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:07:59,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:07:59,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:07:59,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:07:59,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:59" (1/1) ... [2024-09-13 10:07:59,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:59,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:07:59,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-13 10:07:59,160 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-13 10:07:59,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:07:59,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:07:59,197 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:07:59,197 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 10:07:59,197 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:07:59,197 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:07:59,197 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:07:59,197 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:07:59,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:07:59,197 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 10:07:59,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 10:07:59,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 10:07:59,198 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:07:59,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:07:59,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 10:07:59,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:07:59,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-13 10:07:59,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-13 10:07:59,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:07:59,269 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:07:59,271 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:07:59,432 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:07:59,461 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:07:59,461 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 10:07:59,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:59 BoogieIcfgContainer [2024-09-13 10:07:59,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:07:59,463 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:07:59,463 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:07:59,464 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:07:59,464 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:57" (1/4) ... [2024-09-13 10:07:59,465 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@58b8738c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:07:59, skipping insertion in model container [2024-09-13 10:07:59,465 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:07:58" (2/4) ... [2024-09-13 10:07:59,465 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@58b8738c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:07:59, skipping insertion in model container [2024-09-13 10:07:59,465 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:59" (3/4) ... [2024-09-13 10:07:59,465 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@58b8738c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:07:59, skipping insertion in model container [2024-09-13 10:07:59,465 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:59" (4/4) ... [2024-09-13 10:07:59,467 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-09-13 10:07:59,470 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 10:07:59,470 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-09-13 10:07:59,471 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-09-13 10:07:59,471 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 10:07:59,522 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 11 edges [2024-09-13 10:07:59,525 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:07:59,526 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:07:59,526 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:07:59,528 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:07:59,530 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:59,601 INFO L101 BaseMinimizeStates]: Removed 18 edges and 8 locations by large block encoding [2024-09-13 10:07:59,603 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:59,603 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:07:59,603 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:07:59,604 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:07:59,604 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 10:07:59,605 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-13 10:07:59,609 INFO L158 Benchmark]: Toolchain (without parser) took 836.28ms. Allocated memory is still 151.0MB. Free memory was 81.2MB in the beginning and 100.8MB in the end (delta: -19.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:59,610 INFO L158 Benchmark]: Witness Parser took 0.55ms. Allocated memory is still 151.0MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:59,610 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:59,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.45ms. Allocated memory is still 151.0MB. Free memory was 81.0MB in the beginning and 67.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-13 10:07:59,611 INFO L158 Benchmark]: Boogie Preprocessor took 49.61ms. Allocated memory is still 151.0MB. Free memory was 67.4MB in the beginning and 123.5MB in the end (delta: -56.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-09-13 10:07:59,611 INFO L158 Benchmark]: RCFGBuilder took 335.32ms. Allocated memory is still 151.0MB. Free memory was 122.8MB in the beginning and 109.9MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 10:07:59,612 INFO L158 Benchmark]: Referee took 144.96ms. Allocated memory is still 151.0MB. Free memory was 109.9MB in the beginning and 100.8MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-13 10:07:59,614 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 0.55ms. Allocated memory is still 151.0MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.19ms. Allocated memory is still 151.0MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.45ms. Allocated memory is still 151.0MB. Free memory was 81.0MB in the beginning and 67.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.61ms. Allocated memory is still 151.0MB. Free memory was 67.4MB in the beginning and 123.5MB in the end (delta: -56.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * RCFGBuilder took 335.32ms. Allocated memory is still 151.0MB. Free memory was 122.8MB in the beginning and 109.9MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 144.96ms. Allocated memory is still 151.0MB. Free memory was 109.9MB in the beginning and 100.8MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 10:07:59,637 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-dev-1d5fa63-m [2024-09-13 10:08:01,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:08:01,849 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-13 10:08:01,855 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:08:01,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:08:01,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:08:01,882 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:08:01,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:08:01,883 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:08:01,885 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:08:01,885 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:08:01,885 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:08:01,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:08:01,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:08:01,890 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:08:01,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:08:01,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:08:01,891 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:08:01,891 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:08:01,891 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:08:01,891 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:08:01,892 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:08:01,892 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:08:01,892 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-13 10:08:01,893 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-13 10:08:01,893 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:08:01,893 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-13 10:08:01,893 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:08:01,894 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:08:01,894 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:08:01,894 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:08:01,894 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:08:01,895 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:08:01,895 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:08:01,899 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:08:01,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:08:01,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:08:01,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:08:01,900 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:08:01,900 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-13 10:08:01,900 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-13 10:08:01,901 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:08:01,902 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:08:01,902 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:08:01,902 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:08:01,902 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-13 10:08:01,902 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:08:02,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:08:02,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:08:02,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:08:02,257 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:08:02,258 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:08:02,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-13 10:08:03,802 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:08:03,989 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:08:03,989 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2024-09-13 10:08:04,001 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/cd291be20/03cdf199490043d0826cff111f934d44/FLAG1bc6f58d4 [2024-09-13 10:08:04,020 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/cd291be20/03cdf199490043d0826cff111f934d44 [2024-09-13 10:08:04,023 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:08:04,024 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:08:04,026 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+lhb-reducer.yml/witness-2.1.yml [2024-09-13 10:08:04,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:08:04,078 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:08:04,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:08:04,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:08:04,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:08:04,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:08:04" (1/2) ... [2024-09-13 10:08:04,087 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec7d666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:08:04, skipping insertion in model container [2024-09-13 10:08:04,087 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:08:04" (1/2) ... [2024-09-13 10:08:04,089 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5c87db89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:08:04, skipping insertion in model container [2024-09-13 10:08:04,089 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:08:04" (2/2) ... [2024-09-13 10:08:04,089 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec7d666 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:04, skipping insertion in model container [2024-09-13 10:08:04,089 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:08:04" (2/2) ... [2024-09-13 10:08:04,099 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:08:04,100 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))) [2024-09-13 10:08:04,124 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:08:04,325 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] [2024-09-13 10:08:04,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:08:04,353 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 10:08:04,376 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c[1444,1457] Start Parsing Local [2024-09-13 10:08:04,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:08:04,423 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:08:04,423 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:04 WrapperNode [2024-09-13 10:08:04,423 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:08:04,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:08:04,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:08:04,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:08:04,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:04" (1/1) ... [2024-09-13 10:08:04,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:04" (1/1) ... [2024-09-13 10:08:04,445 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:04" (1/1) ... [2024-09-13 10:08:04,462 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-13 10:08:04,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:04" (1/1) ... [2024-09-13 10:08:04,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:04" (1/1) ... [2024-09-13 10:08:04,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:04" (1/1) ... [2024-09-13 10:08:04,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:04" (1/1) ... [2024-09-13 10:08:04,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:04" (1/1) ... [2024-09-13 10:08:04,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:04" (1/1) ... [2024-09-13 10:08:04,477 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:08:04,477 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:08:04,478 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:08:04,478 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:08:04,480 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:04" (1/1) ... [2024-09-13 10:08:04,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:08:04,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:08:04,508 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-13 10:08:04,516 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-13 10:08:04,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:08:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:08:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:08:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 10:08:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:08:04,556 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:08:04,556 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:08:04,556 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:08:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:08:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 10:08:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 10:08:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 10:08:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:08:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:08:04,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-13 10:08:04,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:08:04,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-13 10:08:04,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-13 10:08:04,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:08:04,643 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:08:04,645 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:08:06,463 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:08:06,505 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:08:06,505 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 10:08:06,506 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:08:06 BoogieIcfgContainer [2024-09-13 10:08:06,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:08:06,507 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:08:06,507 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:08:06,510 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:08:06,511 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:08:04" (1/4) ... [2024-09-13 10:08:06,511 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1b9371fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:08:06, skipping insertion in model container [2024-09-13 10:08:06,511 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:08:04" (2/4) ... [2024-09-13 10:08:06,512 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1b9371fa and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:08:06, skipping insertion in model container [2024-09-13 10:08:06,512 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:08:04" (3/4) ... [2024-09-13 10:08:06,512 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1b9371fa and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:08:06, skipping insertion in model container [2024-09-13 10:08:06,512 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:08:06" (4/4) ... [2024-09-13 10:08:06,513 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2024-09-13 10:08:06,518 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 10:08:06,519 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 11 edges. [2024-09-13 10:08:06,519 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 13 edges. [2024-09-13 10:08:06,519 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 10:08:06,573 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 11 edges [2024-09-13 10:08:06,577 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:08:06,578 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:08:06,578 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:08:06,580 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:08:06,582 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:08:06,658 INFO L101 BaseMinimizeStates]: Removed 18 edges and 8 locations by large block encoding [2024-09-13 10:08:06,661 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:08:06,662 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:08:06,662 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:08:06,663 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:08:06,663 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 10:08:06,664 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-13 10:08:06,669 INFO L158 Benchmark]: Toolchain (without parser) took 2590.44ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 28.9MB in the beginning and 58.0MB in the end (delta: -29.1MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2024-09-13 10:08:06,669 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 48.2MB. Free memory was 29.0MB in the beginning and 28.9MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:08:06,670 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 30.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:08:06,672 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.81ms. Allocated memory is still 62.9MB. Free memory was 28.7MB in the beginning and 32.7MB in the end (delta: -4.0MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-09-13 10:08:06,673 INFO L158 Benchmark]: Boogie Preprocessor took 52.50ms. Allocated memory is still 62.9MB. Free memory was 32.7MB in the beginning and 30.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 10:08:06,674 INFO L158 Benchmark]: RCFGBuilder took 2028.67ms. Allocated memory is still 62.9MB. Free memory was 30.5MB in the beginning and 32.3MB in the end (delta: -1.9MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2024-09-13 10:08:06,675 INFO L158 Benchmark]: Referee took 160.52ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 32.3MB in the beginning and 58.0MB in the end (delta: -25.7MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2024-09-13 10:08:06,678 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 0.25ms. Allocated memory is still 48.2MB. Free memory was 29.0MB in the beginning and 28.9MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.18ms. Allocated memory is still 62.9MB. Free memory is still 30.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.81ms. Allocated memory is still 62.9MB. Free memory was 28.7MB in the beginning and 32.7MB in the end (delta: -4.0MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.50ms. Allocated memory is still 62.9MB. Free memory was 32.7MB in the beginning and 30.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2028.67ms. Allocated memory is still 62.9MB. Free memory was 30.5MB in the beginning and 32.3MB in the end (delta: -1.9MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Referee took 160.52ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 32.3MB in the beginning and 58.0MB in the end (delta: -25.7MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 10:08:06,727 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...