This is Ultimate 0.2.4-tmp.dk.referee-eval-6908dde-m [2024-09-25 00:27:33,516 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:27:33,639 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 00:27:33,653 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:27:33,653 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:27:33,731 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:27:33,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:27:33,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:27:33,732 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:27:33,733 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:27:33,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:27:33,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:27:33,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:27:33,754 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:27:33,754 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:27:33,755 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:27:33,755 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:27:33,755 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:27:33,756 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 00:27:33,756 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:27:33,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:27:33,766 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:27:33,767 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:27:33,767 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:27:33,767 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:27:33,768 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:27:33,768 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:27:33,768 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:27:33,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:27:33,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:27:33,769 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:27:33,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:27:33,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:27:33,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:33,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:27:33,774 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:27:33,775 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:27:33,775 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 00:27:33,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 00:27:33,775 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:27:33,776 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:27:33,779 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:27:33,780 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:27:33,780 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:27:34,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:27:34,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:27:34,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:27:34,298 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:27:34,299 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:27:34,300 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-25 00:27:35,945 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:27:36,129 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:27:36,129 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-25 00:27:36,136 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/b2dd5cf75/d74d5c5684aa46588053acc3b2da61b4/FLAGd33e5fee4 [2024-09-25 00:27:36,526 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/b2dd5cf75/d74d5c5684aa46588053acc3b2da61b4 [2024-09-25 00:27:36,529 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:27:36,530 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:27:36,531 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-25 00:27:36,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:27:36,577 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:27:36,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:36,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:27:36,584 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:27:36,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:36" (1/2) ... [2024-09-25 00:27:36,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7df7ccee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:36, skipping insertion in model container [2024-09-25 00:27:36,586 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:36" (1/2) ... [2024-09-25 00:27:36,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@384223ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:36, skipping insertion in model container [2024-09-25 00:27:36,588 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:36" (2/2) ... [2024-09-25 00:27:36,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7df7ccee and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:36, skipping insertion in model container [2024-09-25 00:27:36,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:36" (2/2) ... [2024-09-25 00:27:36,594 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:27:36,595 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))) [2024-09-25 00:27:36,612 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:27:36,774 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] [2024-09-25 00:27:36,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:36,798 INFO L200 MainTranslator]: Completed pre-run [2024-09-25 00:27:36,820 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 [2024-09-25 00:27:36,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:36,867 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:27:36,867 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:36 WrapperNode [2024-09-25 00:27:36,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:36,869 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:27:36,869 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:27:36,869 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:27:36,880 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,888 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,908 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-25 00:27:36,909 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,922 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:27:36,926 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:27:36,926 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:27:36,926 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:27:36,928 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:36" (1/1) ... [2024-09-25 00:27:36,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:36,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:27:36,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-25 00:27:36,971 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-25 00:27:37,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:27:37,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:27:37,038 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:27:37,038 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 00:27:37,039 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:27:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:27:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:27:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:27:37,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:27:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 00:27:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 00:27:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 00:27:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:27:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:27:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-25 00:27:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:27:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-25 00:27:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-25 00:27:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:27:37,123 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:27:37,126 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:27:37,253 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:27:37,284 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:27:37,284 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 00:27:37,285 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:37 BoogieIcfgContainer [2024-09-25 00:27:37,285 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:27:37,286 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:27:37,286 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:27:37,287 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:27:37,287 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:27:36" (1/4) ... [2024-09-25 00:27:37,287 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@37b0e1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:27:37, skipping insertion in model container [2024-09-25 00:27:37,287 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:36" (2/4) ... [2024-09-25 00:27:37,288 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@37b0e1db and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:37, skipping insertion in model container [2024-09-25 00:27:37,288 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:36" (3/4) ... [2024-09-25 00:27:37,288 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@37b0e1db and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:37, skipping insertion in model container [2024-09-25 00:27:37,288 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:37" (4/4) ... [2024-09-25 00:27:37,290 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2024-09-25 00:27:37,293 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 00:27:37,294 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-25 00:27:37,294 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-25 00:27:37,295 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-25 00:27:37,351 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-25 00:27:37,352 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:37,353 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:37,353 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:37,354 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:37,356 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:37,392 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 00:27:37,393 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:37,394 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:37,394 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:37,394 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:37,395 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 00:27:37,396 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-25 00:27:37,403 INFO L158 Benchmark]: Toolchain (without parser) took 825.39ms. Allocated memory is still 201.3MB. Free memory was 130.3MB in the beginning and 96.2MB in the end (delta: 34.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-09-25 00:27:37,406 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 125.8MB. Free memory was 91.2MB in the beginning and 91.0MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:37,406 INFO L158 Benchmark]: Witness Parser took 0.46ms. Allocated memory is still 201.3MB. Free memory is still 132.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:37,407 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.24ms. Allocated memory is still 201.3MB. Free memory was 130.0MB in the beginning and 117.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 00:27:37,408 INFO L158 Benchmark]: Boogie Preprocessor took 56.51ms. Allocated memory is still 201.3MB. Free memory was 117.1MB in the beginning and 115.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 00:27:37,409 INFO L158 Benchmark]: RCFGBuilder took 358.98ms. Allocated memory is still 201.3MB. Free memory was 115.0MB in the beginning and 101.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 00:27:37,410 INFO L158 Benchmark]: Referee took 116.14ms. Allocated memory is still 201.3MB. Free memory was 101.9MB in the beginning and 96.2MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-25 00:27:37,412 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 0.19ms. Allocated memory is still 125.8MB. Free memory was 91.2MB in the beginning and 91.0MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.46ms. Allocated memory is still 201.3MB. Free memory is still 132.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.24ms. Allocated memory is still 201.3MB. Free memory was 130.0MB in the beginning and 117.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.51ms. Allocated memory is still 201.3MB. Free memory was 117.1MB in the beginning and 115.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 358.98ms. Allocated memory is still 201.3MB. Free memory was 115.0MB in the beginning and 101.9MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 116.14ms. Allocated memory is still 201.3MB. Free memory was 101.9MB in the beginning and 96.2MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 00:27:37,444 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.4-tmp.dk.referee-eval-6908dde-m [2024-09-25 00:27:40,717 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:27:40,799 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-25 00:27:40,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:27:40,808 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:27:40,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:27:40,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:27:40,846 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:27:40,847 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:27:40,847 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:27:40,848 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:27:40,848 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:27:40,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:27:40,849 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:27:40,850 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:27:40,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:27:40,851 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:27:40,851 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:27:40,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:27:40,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:27:40,853 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:27:40,857 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:27:40,858 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:27:40,858 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-25 00:27:40,858 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-25 00:27:40,859 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:27:40,859 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-25 00:27:40,859 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:27:40,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:27:40,860 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:27:40,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:27:40,861 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:27:40,861 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:27:40,862 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:27:40,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:27:40,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:40,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:27:40,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:27:40,864 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:27:40,864 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-25 00:27:40,864 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-25 00:27:40,869 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:27:40,870 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:27:40,870 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:27:40,870 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:27:40,871 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-25 00:27:40,871 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:27:41,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:27:41,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:27:41,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:27:41,200 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:27:41,206 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:27:41,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-25 00:27:43,032 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:27:43,239 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:27:43,240 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-new/gauss_sum.i.p+cfa-reducer.c [2024-09-25 00:27:43,247 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/36dea5b6f/c081a9f9df524dbfbd2d6a3dcb208e89/FLAGf4a38f6d2 [2024-09-25 00:27:43,264 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/36dea5b6f/c081a9f9df524dbfbd2d6a3dcb208e89 [2024-09-25 00:27:43,267 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:27:43,268 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:27:43,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gauss_sum.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-25 00:27:43,330 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:27:43,332 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:27:43,335 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:43,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:27:43,341 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:27:43,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:43" (1/2) ... [2024-09-25 00:27:43,345 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2267ec7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:43, skipping insertion in model container [2024-09-25 00:27:43,345 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:43" (1/2) ... [2024-09-25 00:27:43,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39ff6674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:43, skipping insertion in model container [2024-09-25 00:27:43,347 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:43" (2/2) ... [2024-09-25 00:27:43,347 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2267ec7b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:43, skipping insertion in model container [2024-09-25 00:27:43,347 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:43" (2/2) ... [2024-09-25 00:27:43,356 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:27:43,357 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))) [2024-09-25 00:27:43,375 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:27:43,554 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] [2024-09-25 00:27:43,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:43,579 INFO L200 MainTranslator]: Completed pre-run [2024-09-25 00:27:43,597 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 [2024-09-25 00:27:43,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:43,683 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:27:43,683 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:43 WrapperNode [2024-09-25 00:27:43,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:43,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:27:43,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:27:43,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:27:43,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:43" (1/1) ... [2024-09-25 00:27:43,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:43" (1/1) ... [2024-09-25 00:27:43,707 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:43" (1/1) ... [2024-09-25 00:27:43,725 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-25 00:27:43,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:43" (1/1) ... [2024-09-25 00:27:43,726 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:43" (1/1) ... [2024-09-25 00:27:43,736 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:43" (1/1) ... [2024-09-25 00:27:43,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:43" (1/1) ... [2024-09-25 00:27:43,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:43" (1/1) ... [2024-09-25 00:27:43,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:43" (1/1) ... [2024-09-25 00:27:43,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:27:43,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:27:43,747 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:27:43,747 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:27:43,748 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:43" (1/1) ... [2024-09-25 00:27:43,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:43,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:27:43,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-25 00:27:43,785 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-25 00:27:43,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:27:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:27:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:27:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 00:27:43,838 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:27:43,838 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:27:43,838 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:27:43,838 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:27:43,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:27:43,839 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 00:27:43,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 00:27:43,839 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 00:27:43,839 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:27:43,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:27:43,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-25 00:27:43,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:27:43,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-25 00:27:43,840 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-25 00:27:43,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:27:43,924 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:27:43,928 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:27:48,176 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:27:48,236 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:27:48,239 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 00:27:48,239 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:48 BoogieIcfgContainer [2024-09-25 00:27:48,239 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:27:48,240 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:27:48,240 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:27:48,241 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:27:48,241 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:27:43" (1/4) ... [2024-09-25 00:27:48,242 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@19a8880b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:27:48, skipping insertion in model container [2024-09-25 00:27:48,243 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:43" (2/4) ... [2024-09-25 00:27:48,244 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@19a8880b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:48, skipping insertion in model container [2024-09-25 00:27:48,244 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:43" (3/4) ... [2024-09-25 00:27:48,244 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@19a8880b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:48, skipping insertion in model container [2024-09-25 00:27:48,244 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:48" (4/4) ... [2024-09-25 00:27:48,246 INFO L79 RefereeObserver]: Analyzing ICFG gauss_sum.i.p+cfa-reducer.c [2024-09-25 00:27:48,249 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 00:27:48,250 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-25 00:27:48,251 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-25 00:27:48,251 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-25 00:27:48,298 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-25 00:27:48,300 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:48,300 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:48,302 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:48,305 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:48,307 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:48,358 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 00:27:48,360 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:48,360 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:48,360 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:48,361 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:48,361 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 00:27:48,362 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-25 00:27:48,367 INFO L158 Benchmark]: Toolchain (without parser) took 5033.97ms. Allocated memory is still 90.2MB. Free memory was 58.9MB in the beginning and 45.1MB in the end (delta: 13.8MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-09-25 00:27:48,368 INFO L158 Benchmark]: CDTParser took 4.59ms. Allocated memory is still 62.9MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:48,368 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 90.2MB. Free memory is still 60.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:48,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.10ms. Allocated memory is still 90.2MB. Free memory was 58.7MB in the beginning and 68.8MB in the end (delta: -10.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-25 00:27:48,369 INFO L158 Benchmark]: Boogie Preprocessor took 61.18ms. Allocated memory is still 90.2MB. Free memory was 68.8MB in the beginning and 66.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 00:27:48,370 INFO L158 Benchmark]: RCFGBuilder took 4492.92ms. Allocated memory is still 90.2MB. Free memory was 66.5MB in the beginning and 52.5MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 00:27:48,371 INFO L158 Benchmark]: Referee took 124.98ms. Allocated memory is still 90.2MB. Free memory was 52.5MB in the beginning and 45.5MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-25 00:27:48,373 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 4.59ms. Allocated memory is still 62.9MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.11ms. Allocated memory is still 90.2MB. Free memory is still 60.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.10ms. Allocated memory is still 90.2MB. Free memory was 58.7MB in the beginning and 68.8MB in the end (delta: -10.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.18ms. Allocated memory is still 90.2MB. Free memory was 68.8MB in the beginning and 66.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 4492.92ms. Allocated memory is still 90.2MB. Free memory was 66.5MB in the beginning and 52.5MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 124.98ms. Allocated memory is still 90.2MB. Free memory was 52.5MB in the beginning and 45.5MB 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. [2024-09-25 00:27:48,418 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...