This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 12:47:53,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 12:47:53,818 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 12:47:53,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 12:47:53,822 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 12:47:53,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 12:47:53,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 12:47:53,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 12:47:53,853 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 12:47:53,855 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 12:47:53,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 12:47:53,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 12:47:53,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 12:47:53,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 12:47:53,856 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 12:47:53,859 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 12:47:53,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 12:47:53,860 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 12:47:53,860 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 12:47:53,860 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 12:47:53,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 12:47:53,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 12:47:53,861 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 12:47:53,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 12:47:53,863 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 12:47:53,863 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 12:47:53,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 12:47:53,863 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 12:47:53,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 12:47:53,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 12:47:53,864 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 12:47:53,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 12:47:53,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 12:47:53,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:53,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 12:47:53,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 12:47:53,867 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 12:47:53,867 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 12:47:53,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 12:47:53,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 12:47:53,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 12:47:53,868 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 12:47:53,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 12:47:53,868 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 12:47:54,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 12:47:54,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 12:47:54,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 12:47:54,139 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 12:47:54,139 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 12:47:54,140 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-21 12:47:55,577 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 12:47:55,753 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 12:47:55,754 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-21 12:47:55,760 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/b678441cd/ff85d3cc2b2547d09b70e86e174a39e1/FLAG3646f6dfa [2024-09-21 12:47:56,156 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/b678441cd/ff85d3cc2b2547d09b70e86e174a39e1 [2024-09-21 12:47:56,159 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 12:47:56,161 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 12:47:56,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-21 12:47:56,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 12:47:56,217 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 12:47:56,220 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:56,220 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 12:47:56,225 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 12:47:56,226 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:56" (1/2) ... [2024-09-21 12:47:56,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a02c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56, skipping insertion in model container [2024-09-21 12:47:56,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:56" (1/2) ... [2024-09-21 12:47:56,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1a04365c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:56, skipping insertion in model container [2024-09-21 12:47:56,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:56" (2/2) ... [2024-09-21 12:47:56,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a02c6e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:56, skipping insertion in model container [2024-09-21 12:47:56,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:56" (2/2) ... [2024-09-21 12:47:56,238 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 12:47:56,240 INFO L1541 ArrayList]: Location invariant before [L34-L58] (((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (\old(__return_80) == __return_80)) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-21 12:47:56,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 12:47:56,462 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+cfa-reducer.c[1014,1027] [2024-09-21 12:47:56,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:56,479 INFO L200 MainTranslator]: Completed pre-run [2024-09-21 12:47:56,498 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+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-21 12:47:56,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:56,541 INFO L204 MainTranslator]: Completed translation [2024-09-21 12:47:56,542 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:56 WrapperNode [2024-09-21 12:47:56,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:56,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 12:47:56,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 12:47:56,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 12:47:56,554 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,560 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,579 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-21 12:47:56,580 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,585 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,589 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,590 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 12:47:56,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 12:47:56,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 12:47:56,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 12:47:56,596 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:56" (1/1) ... [2024-09-21 12:47:56,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:56,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 12:47:56,625 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-21 12:47:56,630 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-21 12:47:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 12:47:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 12:47:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 12:47:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 12:47:56,669 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 12:47:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 12:47:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 12:47:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 12:47:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 12:47:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 12:47:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 12:47:56,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 12:47:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 12:47:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 12:47:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-21 12:47:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 12:47:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-21 12:47:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-21 12:47:56,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 12:47:56,740 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 12:47:56,743 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 12:47:56,864 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 12:47:56,894 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 12:47:56,894 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-21 12:47:56,894 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:56 BoogieIcfgContainer [2024-09-21 12:47:56,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 12:47:56,895 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 12:47:56,895 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 12:47:56,896 INFO L274 PluginConnector]: Referee initialized [2024-09-21 12:47:56,896 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 12:47:56" (1/4) ... [2024-09-21 12:47:56,897 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@47f1ad5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:47:56, skipping insertion in model container [2024-09-21 12:47:56,897 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:47:56" (2/4) ... [2024-09-21 12:47:56,897 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@47f1ad5f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:47:56, skipping insertion in model container [2024-09-21 12:47:56,897 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:56" (3/4) ... [2024-09-21 12:47:56,897 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@47f1ad5f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:47:56, skipping insertion in model container [2024-09-21 12:47:56,897 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:56" (4/4) ... [2024-09-21 12:47:56,899 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2024-09-21 12:47:56,902 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 12:47:56,902 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-21 12:47:56,903 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-21 12:47:56,903 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-21 12:47:56,941 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-21 12:47:56,942 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:47:56,942 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:47:56,943 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:47:56,944 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:47:56,945 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:56,974 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 12:47:56,975 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:56,976 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:47:56,976 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:47:56,976 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:47:56,977 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 12:47:56,980 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-21 12:47:56,987 INFO L158 Benchmark]: Toolchain (without parser) took 768.51ms. Allocated memory is still 142.6MB. Free memory was 83.1MB in the beginning and 88.1MB in the end (delta: -5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:56,987 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:56,987 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:56,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.91ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 109.8MB in the end (delta: -27.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-21 12:47:56,989 INFO L158 Benchmark]: Boogie Preprocessor took 52.07ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 107.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:47:56,989 INFO L158 Benchmark]: RCFGBuilder took 299.30ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 95.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-21 12:47:56,991 INFO L158 Benchmark]: Referee took 89.86ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 88.1MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-21 12:47:56,993 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 0.16ms. Allocated memory is still 98.6MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.91ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 109.8MB in the end (delta: -27.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.07ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 107.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 299.30ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 95.1MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 89.86ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 88.1MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 12:47:57,029 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-27b4987-m [2024-09-21 12:47:59,273 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 12:47:59,361 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-21 12:47:59,367 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 12:47:59,368 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 12:47:59,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 12:47:59,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 12:47:59,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 12:47:59,418 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 12:47:59,421 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 12:47:59,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 12:47:59,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 12:47:59,422 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 12:47:59,428 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 12:47:59,428 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 12:47:59,429 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 12:47:59,429 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 12:47:59,429 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 12:47:59,430 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 12:47:59,430 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 12:47:59,430 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 12:47:59,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 12:47:59,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 12:47:59,432 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-21 12:47:59,433 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-21 12:47:59,433 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 12:47:59,433 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-21 12:47:59,434 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 12:47:59,434 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 12:47:59,434 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 12:47:59,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 12:47:59,435 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 12:47:59,435 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 12:47:59,435 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 12:47:59,435 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 12:47:59,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:59,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 12:47:59,437 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 12:47:59,437 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 12:47:59,437 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-21 12:47:59,437 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-21 12:47:59,438 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 12:47:59,438 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 12:47:59,438 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 12:47:59,439 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 12:47:59,439 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-21 12:47:59,439 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 12:47:59,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 12:47:59,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 12:47:59,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 12:47:59,785 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 12:47:59,786 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 12:47:59,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-21 12:48:01,301 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 12:48:01,511 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 12:48:01,512 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-21 12:48:01,524 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/595ac6866/b82eaabf8f45453092e4ca1ad33c847c/FLAG2e135340d [2024-09-21 12:48:01,862 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/595ac6866/b82eaabf8f45453092e4ca1ad33c847c [2024-09-21 12:48:01,865 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 12:48:01,870 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 12:48:01,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-21 12:48:01,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 12:48:01,923 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 12:48:01,924 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 12:48:01,924 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 12:48:01,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 12:48:01,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:48:01" (1/2) ... [2024-09-21 12:48:01,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4075659d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01, skipping insertion in model container [2024-09-21 12:48:01,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:48:01" (1/2) ... [2024-09-21 12:48:01,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5c64175b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:48:01, skipping insertion in model container [2024-09-21 12:48:01,932 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:48:01" (2/2) ... [2024-09-21 12:48:01,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4075659d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:01, skipping insertion in model container [2024-09-21 12:48:01,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:48:01" (2/2) ... [2024-09-21 12:48:01,939 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 12:48:01,939 INFO L1541 ArrayList]: Location invariant before [L34-L58] (((((((long long) main__sum * 2) == (((long long) main__n * main__n) + main__n)) || (main__i < ((long long) main__n + 1))) && (\old(__return_80) == __return_80)) && (1 <= main__n)) && ((((long long) main__sum * 2) + main__i) == ((long long) main__i * main__i))) [2024-09-21 12:48:01,954 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 12:48:02,118 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+cfa-reducer.c[1014,1027] [2024-09-21 12:48:02,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:48:02,138 INFO L200 MainTranslator]: Completed pre-run [2024-09-21 12:48:02,159 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+cfa-reducer.c[1014,1027] Start Parsing Local [2024-09-21 12:48:02,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:48:02,213 INFO L204 MainTranslator]: Completed translation [2024-09-21 12:48:02,214 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:02 WrapperNode [2024-09-21 12:48:02,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 12:48:02,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 12:48:02,216 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 12:48:02,216 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 12:48:02,229 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:02" (1/1) ... [2024-09-21 12:48:02,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:02" (1/1) ... [2024-09-21 12:48:02,239 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:02" (1/1) ... [2024-09-21 12:48:02,260 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-21 12:48:02,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:02" (1/1) ... [2024-09-21 12:48:02,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:02" (1/1) ... [2024-09-21 12:48:02,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:02" (1/1) ... [2024-09-21 12:48:02,274 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:02" (1/1) ... [2024-09-21 12:48:02,275 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:02" (1/1) ... [2024-09-21 12:48:02,276 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:02" (1/1) ... [2024-09-21 12:48:02,278 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 12:48:02,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 12:48:02,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 12:48:02,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 12:48:02,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:02" (1/1) ... [2024-09-21 12:48:02,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:48:02,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 12:48:02,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-21 12:48:02,308 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-21 12:48:02,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 12:48:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 12:48:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 12:48:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 12:48:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 12:48:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 12:48:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 12:48:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 12:48:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 12:48:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 12:48:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 12:48:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 12:48:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 12:48:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 12:48:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-21 12:48:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 12:48:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-21 12:48:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-21 12:48:02,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 12:48:02,489 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 12:48:02,491 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 12:48:06,747 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 12:48:06,788 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 12:48:06,789 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-21 12:48:06,789 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:48:06 BoogieIcfgContainer [2024-09-21 12:48:06,790 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 12:48:06,790 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 12:48:06,790 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 12:48:06,794 INFO L274 PluginConnector]: Referee initialized [2024-09-21 12:48:06,794 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 12:48:01" (1/4) ... [2024-09-21 12:48:06,795 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@21b24c63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:48:06, skipping insertion in model container [2024-09-21 12:48:06,795 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 12:48:01" (2/4) ... [2024-09-21 12:48:06,795 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@21b24c63 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:48:06, skipping insertion in model container [2024-09-21 12:48:06,795 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:48:02" (3/4) ... [2024-09-21 12:48:06,796 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@21b24c63 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:48:06, skipping insertion in model container [2024-09-21 12:48:06,796 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:48:06" (4/4) ... [2024-09-21 12:48:06,797 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2024-09-21 12:48:06,800 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 12:48:06,801 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-21 12:48:06,801 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-21 12:48:06,802 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-21 12:48:06,855 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-21 12:48:06,856 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:48:06,857 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:48:06,858 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:48:06,859 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:48:06,861 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:48:06,892 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 12:48:06,893 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:48:06,894 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:48:06,894 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:48:06,894 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:48:06,895 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 12:48:06,895 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-21 12:48:06,903 INFO L158 Benchmark]: Toolchain (without parser) took 4979.26ms. Allocated memory is still 83.9MB. Free memory was 58.7MB in the beginning and 45.7MB in the end (delta: 12.9MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2024-09-21 12:48:06,904 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 62.9MB. Free memory is still 31.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:48:06,904 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 83.9MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:48:06,905 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.68ms. Allocated memory is still 83.9MB. Free memory was 58.5MB in the beginning and 44.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-21 12:48:06,905 INFO L158 Benchmark]: Boogie Preprocessor took 62.13ms. Allocated memory is still 83.9MB. Free memory was 44.8MB in the beginning and 42.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:48:06,906 INFO L158 Benchmark]: RCFGBuilder took 4511.16ms. Allocated memory is still 83.9MB. Free memory was 42.5MB in the beginning and 53.4MB in the end (delta: -10.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-09-21 12:48:06,906 INFO L158 Benchmark]: Referee took 110.98ms. Allocated memory is still 83.9MB. Free memory was 53.4MB in the beginning and 45.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-21 12:48:06,909 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 0.39ms. Allocated memory is still 62.9MB. Free memory is still 31.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.21ms. Allocated memory is still 83.9MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.68ms. Allocated memory is still 83.9MB. Free memory was 58.5MB in the beginning and 44.8MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.13ms. Allocated memory is still 83.9MB. Free memory was 44.8MB in the beginning and 42.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4511.16ms. Allocated memory is still 83.9MB. Free memory was 42.5MB in the beginning and 53.4MB in the end (delta: -10.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Referee took 110.98ms. Allocated memory is still 83.9MB. Free memory was 53.4MB in the beginning and 45.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 12:48:06,945 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...