This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 12:47:41,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 12:47:42,049 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 12:47:42,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 12:47:42,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 12:47:42,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 12:47:42,083 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 12:47:42,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 12:47:42,084 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 12:47:42,086 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 12:47:42,086 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 12:47:42,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 12:47:42,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 12:47:42,087 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 12:47:42,090 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 12:47:42,090 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 12:47:42,091 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 12:47:42,091 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 12:47:42,091 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 12:47:42,092 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 12:47:42,092 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 12:47:42,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 12:47:42,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 12:47:42,093 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 12:47:42,093 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 12:47:42,094 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 12:47:42,094 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 12:47:42,094 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 12:47:42,094 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 12:47:42,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 12:47:42,095 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 12:47:42,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 12:47:42,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 12:47:42,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:42,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 12:47:42,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 12:47:42,102 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 12:47:42,102 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 12:47:42,102 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 12:47:42,103 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 12:47:42,103 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 12:47:42,104 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 12:47:42,105 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 12:47:42,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 12:47:42,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 12:47:42,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 12:47:42,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 12:47:42,391 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 12:47:42,392 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 12:47:42,394 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-21 12:47:42,498 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 12:47:42,498 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 12:47:42,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-21 12:47:43,904 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 12:47:44,108 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 12:47:44,109 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-21 12:47:44,117 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/72842f3a8/df6f85a263a741c49c38c1a98099892a/FLAGb2fa1fffd [2024-09-21 12:47:44,131 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/72842f3a8/df6f85a263a741c49c38c1a98099892a [2024-09-21 12:47:44,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 12:47:44,133 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 12:47:44,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:44,135 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 12:47:44,140 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 12:47:44,141 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 12:47:42" (1/2) ... [2024-09-21 12:47:44,143 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65406891 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:44, skipping insertion in model container [2024-09-21 12:47:44,144 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 12:47:42" (1/2) ... [2024-09-21 12:47:44,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39e87451 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:44, skipping insertion in model container [2024-09-21 12:47:44,146 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:44" (2/2) ... [2024-09-21 12:47:44,146 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65406891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44, skipping insertion in model container [2024-09-21 12:47:44,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:44" (2/2) ... [2024-09-21 12:47:44,156 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 12:47:44,157 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144)) [2024-09-21 12:47:44,175 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 12:47:44,338 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-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2024-09-21 12:47:44,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:44,357 INFO L200 MainTranslator]: Completed pre-run [2024-09-21 12:47:44,371 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-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] Start Parsing Local [2024-09-21 12:47:44,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:44,415 INFO L204 MainTranslator]: Completed translation [2024-09-21 12:47:44,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44 WrapperNode [2024-09-21 12:47:44,416 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:44,417 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 12:47:44,417 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 12:47:44,417 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 12:47:44,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ... [2024-09-21 12:47:44,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ... [2024-09-21 12:47:44,437 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ... [2024-09-21 12:47:44,453 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 12:47:44,453 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ... [2024-09-21 12:47:44,454 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ... [2024-09-21 12:47:44,459 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ... [2024-09-21 12:47:44,461 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ... [2024-09-21 12:47:44,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ... [2024-09-21 12:47:44,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ... [2024-09-21 12:47:44,483 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 12:47:44,484 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 12:47:44,485 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 12:47:44,485 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 12:47:44,486 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ... [2024-09-21 12:47:44,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:44,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 12:47:44,561 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 12:47:44,578 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 12:47:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 12:47:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 12:47:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 12:47:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 12:47:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 12:47:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 12:47:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 12:47:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 12:47:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 12:47:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 12:47:44,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 12:47:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 12:47:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 12:47:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 12:47:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-21 12:47:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 12:47:44,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-21 12:47:44,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-21 12:47:44,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 12:47:44,680 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 12:47:44,682 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 12:47:44,777 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 12:47:44,812 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 12:47:44,812 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-21 12:47:44,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:44 BoogieIcfgContainer [2024-09-21 12:47:44,813 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 12:47:44,813 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 12:47:44,814 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 12:47:44,814 INFO L274 PluginConnector]: Referee initialized [2024-09-21 12:47:44,815 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 12:47:42" (1/4) ... [2024-09-21 12:47:44,815 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6940000f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:47:44, skipping insertion in model container [2024-09-21 12:47:44,815 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 12:47:44" (2/4) ... [2024-09-21 12:47:44,815 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6940000f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:47:44, skipping insertion in model container [2024-09-21 12:47:44,815 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (3/4) ... [2024-09-21 12:47:44,816 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6940000f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:47:44, skipping insertion in model container [2024-09-21 12:47:44,816 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:44" (4/4) ... [2024-09-21 12:47:44,817 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-09-21 12:47:44,819 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 12:47:44,820 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-21 12:47:44,820 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-21 12:47:44,820 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-21 12:47:44,857 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-21 12:47:44,858 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:47:44,858 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:47:44,859 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:47:44,861 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:47:44,864 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:44,888 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 12:47:44,889 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:44,889 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:47:44,889 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:47:44,890 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:47:44,890 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 12:47:44,892 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 12:47:44,898 INFO L158 Benchmark]: Toolchain (without parser) took 764.85ms. Allocated memory is still 174.1MB. Free memory was 103.4MB in the beginning and 127.7MB in the end (delta: -24.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:44,899 INFO L158 Benchmark]: Witness Parser took 0.33ms. Allocated memory is still 174.1MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:44,899 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 174.1MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:44,900 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.05ms. Allocated memory is still 174.1MB. Free memory was 103.2MB in the beginning and 90.0MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 12:47:44,900 INFO L158 Benchmark]: Boogie Preprocessor took 66.16ms. Allocated memory is still 174.1MB. Free memory was 90.0MB in the beginning and 145.3MB in the end (delta: -55.4MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-09-21 12:47:44,901 INFO L158 Benchmark]: RCFGBuilder took 328.54ms. Allocated memory is still 174.1MB. Free memory was 145.3MB in the beginning and 134.0MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-21 12:47:44,901 INFO L158 Benchmark]: Referee took 83.52ms. Allocated memory is still 174.1MB. Free memory was 134.0MB in the beginning and 127.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-21 12:47:44,905 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.33ms. Allocated memory is still 174.1MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.10ms. Allocated memory is still 174.1MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.05ms. Allocated memory is still 174.1MB. Free memory was 103.2MB in the beginning and 90.0MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.16ms. Allocated memory is still 174.1MB. Free memory was 90.0MB in the beginning and 145.3MB in the end (delta: -55.4MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * RCFGBuilder took 328.54ms. Allocated memory is still 174.1MB. Free memory was 145.3MB in the beginning and 134.0MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 83.52ms. Allocated memory is still 174.1MB. Free memory was 134.0MB in the beginning and 127.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 12:47:44,941 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... ### Bit-precise run ### This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 12:47:47,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 12:47:47,253 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-21 12:47:47,258 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 12:47:47,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 12:47:47,292 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 12:47:47,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 12:47:47,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 12:47:47,294 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 12:47:47,295 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 12:47:47,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 12:47:47,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 12:47:47,298 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 12:47:47,299 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 12:47:47,299 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 12:47:47,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 12:47:47,300 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 12:47:47,300 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 12:47:47,301 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 12:47:47,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 12:47:47,304 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 12:47:47,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 12:47:47,305 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 12:47:47,305 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-21 12:47:47,305 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-21 12:47:47,306 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 12:47:47,306 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-21 12:47:47,306 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 12:47:47,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 12:47:47,307 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 12:47:47,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 12:47:47,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 12:47:47,307 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 12:47:47,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 12:47:47,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 12:47:47,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:47,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 12:47:47,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 12:47:47,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 12:47:47,312 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-21 12:47:47,312 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-21 12:47:47,313 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 12:47:47,313 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 12:47:47,313 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 12:47:47,313 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 12:47:47,314 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-21 12:47:47,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 12:47:47,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 12:47:47,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 12:47:47,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 12:47:47,664 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 12:47:47,664 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 12:47:47,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-21 12:47:49,271 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 12:47:49,489 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 12:47:49,490 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-21 12:47:49,500 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/0b147e6ea/b1f2cd014752472580673d7f4a164f04/FLAG16e12bb10 [2024-09-21 12:47:49,861 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/0b147e6ea/b1f2cd014752472580673d7f4a164f04 [2024-09-21 12:47:49,863 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 12:47:49,864 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 12:47:49,866 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-21 12:47:49,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 12:47:49,924 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 12:47:49,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:49,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 12:47:49,933 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 12:47:49,934 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:49" (1/2) ... [2024-09-21 12:47:49,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@227aec66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:49, skipping insertion in model container [2024-09-21 12:47:49,935 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:49" (1/2) ... [2024-09-21 12:47:49,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@580b3624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:49, skipping insertion in model container [2024-09-21 12:47:49,940 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 12:47:49" (2/2) ... [2024-09-21 12:47:49,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@227aec66 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:49, skipping insertion in model container [2024-09-21 12:47:49,941 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 12:47:49" (2/2) ... [2024-09-21 12:47:49,956 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 12:47:49,957 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144)) [2024-09-21 12:47:49,977 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 12:47:50,153 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-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2024-09-21 12:47:50,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:50,183 INFO L200 MainTranslator]: Completed pre-run [2024-09-21 12:47:50,206 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-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] Start Parsing Local [2024-09-21 12:47:50,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:50,254 INFO L204 MainTranslator]: Completed translation [2024-09-21 12:47:50,255 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:50 WrapperNode [2024-09-21 12:47:50,255 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:50,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 12:47:50,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 12:47:50,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 12:47:50,271 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 12:47:50" (1/1) ... [2024-09-21 12:47:50,271 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 12:47:50" (1/1) ... [2024-09-21 12:47:50,278 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 12:47:50" (1/1) ... [2024-09-21 12:47:50,296 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 12:47:50,297 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 12:47:50" (1/1) ... [2024-09-21 12:47:50,297 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 12:47:50" (1/1) ... [2024-09-21 12:47:50,307 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 12:47:50" (1/1) ... [2024-09-21 12:47:50,309 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 12:47:50" (1/1) ... [2024-09-21 12:47:50,310 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 12:47:50" (1/1) ... [2024-09-21 12:47:50,313 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 12:47:50" (1/1) ... [2024-09-21 12:47:50,314 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 12:47:50,316 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 12:47:50,316 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 12:47:50,316 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 12:47:50,317 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 12:47:50" (1/1) ... [2024-09-21 12:47:50,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:50,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 12:47:50,347 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 12:47:50,350 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 12:47:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 12:47:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 12:47:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 12:47:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 12:47:50,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 12:47:50,397 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 12:47:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 12:47:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 12:47:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 12:47:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 12:47:50,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 12:47:50,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 12:47:50,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 12:47:50,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 12:47:50,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-21 12:47:50,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 12:47:50,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-21 12:47:50,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-21 12:47:50,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 12:47:50,484 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 12:47:50,487 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 12:47:50,629 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 12:47:50,677 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 12:47:50,677 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-21 12:47:50,678 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:50 BoogieIcfgContainer [2024-09-21 12:47:50,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 12:47:50,679 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 12:47:50,679 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 12:47:50,680 INFO L274 PluginConnector]: Referee initialized [2024-09-21 12:47:50,680 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 12:47:49" (1/4) ... [2024-09-21 12:47:50,681 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ff6563e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:47:50, skipping insertion in model container [2024-09-21 12:47:50,681 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 12:47:49" (2/4) ... [2024-09-21 12:47:50,682 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ff6563e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:47:50, skipping insertion in model container [2024-09-21 12:47:50,683 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 12:47:50" (3/4) ... [2024-09-21 12:47:50,683 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ff6563e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:47:50, skipping insertion in model container [2024-09-21 12:47:50,683 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 12:47:50" (4/4) ... [2024-09-21 12:47:50,684 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-09-21 12:47:50,688 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 12:47:50,689 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-21 12:47:50,690 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-21 12:47:50,690 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-21 12:47:50,728 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-21 12:47:50,732 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:47:50,733 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:47:50,733 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:47:50,734 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:47:50,736 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:50,766 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 12:47:50,767 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:50,767 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:47:50,767 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:47:50,768 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:47:50,769 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 12:47:50,770 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 12:47:50,776 INFO L158 Benchmark]: Toolchain (without parser) took 851.14ms. Allocated memory is still 67.1MB. Free memory was 32.9MB in the beginning and 34.5MB in the end (delta: -1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:50,777 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory is still 35.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:50,777 INFO L158 Benchmark]: Witness Parser took 0.26ms. Allocated memory is still 67.1MB. Free memory was 34.8MB in the beginning and 34.6MB in the end (delta: 157.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:50,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.30ms. Allocated memory is still 67.1MB. Free memory was 32.7MB in the beginning and 35.2MB in the end (delta: -2.5MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2024-09-21 12:47:50,779 INFO L158 Benchmark]: Boogie Preprocessor took 57.80ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 33.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:47:50,779 INFO L158 Benchmark]: RCFGBuilder took 362.48ms. Allocated memory is still 67.1MB. Free memory was 32.9MB in the beginning and 39.9MB in the end (delta: -7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-21 12:47:50,780 INFO L158 Benchmark]: Referee took 95.60ms. Allocated memory is still 67.1MB. Free memory was 39.9MB in the beginning and 34.5MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-21 12:47:50,783 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 0.22ms. Allocated memory is still 54.5MB. Free memory is still 35.3MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.26ms. Allocated memory is still 67.1MB. Free memory was 34.8MB in the beginning and 34.6MB in the end (delta: 157.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.30ms. Allocated memory is still 67.1MB. Free memory was 32.7MB in the beginning and 35.2MB in the end (delta: -2.5MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.80ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 33.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 362.48ms. Allocated memory is still 67.1MB. Free memory was 32.9MB in the beginning and 39.9MB in the end (delta: -7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 95.60ms. Allocated memory is still 67.1MB. Free memory was 39.9MB in the beginning and 34.5MB in the end (delta: 5.4MB). 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 12:47:50,816 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...