This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 12:47:41,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 12:47:42,006 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 12:47:42,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 12:47:42,013 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 12:47:42,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 12:47:42,049 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 12:47:42,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 12:47:42,050 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 12:47:42,051 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 12:47:42,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 12:47:42,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 12:47:42,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 12:47:42,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 12:47:42,053 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 12:47:42,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 12:47:42,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 12:47:42,054 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 12:47:42,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 12:47:42,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 12:47:42,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 12:47:42,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 12:47:42,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 12:47:42,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 12:47:42,058 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 12:47:42,058 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 12:47:42,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 12:47:42,059 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 12:47:42,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 12:47:42,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 12:47:42,059 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 12:47:42,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 12:47:42,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 12:47:42,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:42,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 12:47:42,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 12:47:42,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 12:47:42,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 12:47:42,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 12:47:42,061 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 12:47:42,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 12:47:42,062 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 12:47:42,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 12:47:42,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 12:47:42,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 12:47:42,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 12:47:42,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 12:47:42,327 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 12:47:42,330 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 12:47:42,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-21 12:47:42,383 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 12:47:42,383 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 12:47:42,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-21 12:47:43,835 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 12:47:44,059 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 12:47:44,060 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-21 12:47:44,066 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/905330b41/7469da87ce6d457da44059c879c524f5/FLAG02680e0b6 [2024-09-21 12:47:44,078 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/905330b41/7469da87ce6d457da44059c879c524f5 [2024-09-21 12:47:44,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 12:47:44,080 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 12:47:44,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:44,082 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 12:47:44,086 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 12:47:44,089 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 12:47:44,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a42dae9 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 12:47:44,091 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 12:47:44,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@73757c78 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 12:47:44,092 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:44" (2/2) ... [2024-09-21 12:47:44,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a42dae9 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 12:47:44,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:44" (2/2) ... [2024-09-21 12:47:44,102 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 12:47:44,103 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_65) == __return_65)) [2024-09-21 12:47:44,118 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 12:47:44,267 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.v+cfa-reducer.c[986,999] [2024-09-21 12:47:44,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:44,282 INFO L200 MainTranslator]: Completed pre-run [2024-09-21 12:47:44,297 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.v+cfa-reducer.c[986,999] Start Parsing Local [2024-09-21 12:47:44,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:44,344 INFO L204 MainTranslator]: Completed translation [2024-09-21 12:47:44,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44 WrapperNode [2024-09-21 12:47:44,345 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:44,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 12:47:44,346 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 12:47:44,346 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 12:47:44,359 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 12:47:44,359 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 12:47:44,365 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 12:47:44,382 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 12:47:44,383 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 12:47:44,383 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 12:47:44,391 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 12:47:44,393 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 12:47:44,394 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 12:47:44,395 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 12:47:44,397 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 12:47:44,399 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 12:47:44,400 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 12:47:44,400 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 12:47:44,401 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 12:47:44,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:44,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 12:47:44,431 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 12:47:44,433 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 12:47:44,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 12:47:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 12:47:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 12:47:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 12:47:44,483 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 12:47:44,483 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 12:47:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 12:47:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 12:47:44,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 12:47:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 12:47:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 12:47:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 12:47:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 12:47:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 12:47:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-21 12:47:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 12:47:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-21 12:47:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-21 12:47:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 12:47:44,559 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 12:47:44,561 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 12:47:44,707 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 12:47:44,740 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 12:47:44,740 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-21 12:47:44,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:44 BoogieIcfgContainer [2024-09-21 12:47:44,745 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 12:47:44,745 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 12:47:44,746 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 12:47:44,747 INFO L274 PluginConnector]: Referee initialized [2024-09-21 12:47:44,747 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 12:47:44,747 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@75ff424 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 12:47:44,748 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 12:47:44" (2/4) ... [2024-09-21 12:47:44,748 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@75ff424 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 12:47:44,748 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 12:47:44,748 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@75ff424 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 12:47:44,749 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 12:47:44,750 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+cfa-reducer.c [2024-09-21 12:47:44,754 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 12:47:44,755 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-21 12:47:44,755 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-21 12:47:44,755 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-21 12:47:44,803 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-21 12:47:44,804 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:47:44,804 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:47:44,805 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:47:44,807 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:47:44,809 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:44,846 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 12:47:44,847 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:44,848 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:47:44,848 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:47:44,849 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:47:44,850 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 12:47:44,850 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 12:47:44,857 INFO L158 Benchmark]: Toolchain (without parser) took 776.09ms. Allocated memory is still 157.3MB. Free memory was 106.8MB in the beginning and 73.9MB in the end (delta: 32.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-09-21 12:47:44,857 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 157.3MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:44,858 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 157.3MB. Free memory is still 120.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:44,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.57ms. Allocated memory is still 157.3MB. Free memory was 106.8MB in the beginning and 92.7MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 12:47:44,858 INFO L158 Benchmark]: Boogie Preprocessor took 52.63ms. Allocated memory is still 157.3MB. Free memory was 92.7MB in the beginning and 90.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:47:44,859 INFO L158 Benchmark]: RCFGBuilder took 345.86ms. Allocated memory is still 157.3MB. Free memory was 90.7MB in the beginning and 78.9MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-21 12:47:44,859 INFO L158 Benchmark]: Referee took 109.75ms. Allocated memory is still 157.3MB. Free memory was 78.9MB in the beginning and 73.9MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-21 12:47:44,864 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.20ms. Allocated memory is still 157.3MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.22ms. Allocated memory is still 157.3MB. Free memory is still 120.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.57ms. Allocated memory is still 157.3MB. Free memory was 106.8MB in the beginning and 92.7MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.63ms. Allocated memory is still 157.3MB. Free memory was 92.7MB in the beginning and 90.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 345.86ms. Allocated memory is still 157.3MB. Free memory was 90.7MB in the beginning and 78.9MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 109.75ms. Allocated memory is still 157.3MB. Free memory was 78.9MB in the beginning and 73.9MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 12:47:44,900 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 12:47:47,033 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 12:47:47,121 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-21 12:47:47,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 12:47:47,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 12:47:47,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 12:47:47,153 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 12:47:47,153 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 12:47:47,154 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 12:47:47,157 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 12:47:47,158 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 12:47:47,158 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 12:47:47,159 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 12:47:47,159 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 12:47:47,159 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 12:47:47,159 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 12:47:47,160 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 12:47:47,160 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 12:47:47,160 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 12:47:47,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 12:47:47,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 12:47:47,163 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 12:47:47,163 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 12:47:47,164 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-21 12:47:47,164 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-21 12:47:47,164 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 12:47:47,164 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-21 12:47:47,165 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 12:47:47,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 12:47:47,165 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 12:47:47,166 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 12:47:47,166 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 12:47:47,166 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 12:47:47,166 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 12:47:47,166 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 12:47:47,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:47,167 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 12:47:47,168 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 12:47:47,168 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 12:47:47,169 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-21 12:47:47,169 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-21 12:47:47,169 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 12:47:47,169 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 12:47:47,169 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 12:47:47,170 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 12:47:47,170 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-21 12:47:47,170 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 12:47:47,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 12:47:47,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 12:47:47,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 12:47:47,514 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 12:47:47,515 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 12:47:47,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-21 12:47:48,999 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 12:47:49,213 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 12:47:49,213 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-21 12:47:49,220 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/3cdb1af46/8a14e5dbabf748898221b55fb9e6c97c/FLAGae4ad4b37 [2024-09-21 12:47:49,233 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/3cdb1af46/8a14e5dbabf748898221b55fb9e6c97c [2024-09-21 12:47:49,235 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 12:47:49,236 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 12:47:49,236 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-21 12:47:49,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 12:47:49,291 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 12:47:49,293 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:49,293 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 12:47:49,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 12:47:49,301 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:49" (1/2) ... [2024-09-21 12:47:49,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@332a6e68 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 12:47:49,303 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:49" (1/2) ... [2024-09-21 12:47:49,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1c0be1b0 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 12:47:49,308 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 12:47:49,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@332a6e68 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 12:47:49,308 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 12:47:49,319 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 12:47:49,321 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_65) == __return_65)) [2024-09-21 12:47:49,340 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 12:47:49,524 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.v+cfa-reducer.c[986,999] [2024-09-21 12:47:49,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:49,549 INFO L200 MainTranslator]: Completed pre-run [2024-09-21 12:47:49,567 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.v+cfa-reducer.c[986,999] Start Parsing Local [2024-09-21 12:47:49,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 12:47:49,614 INFO L204 MainTranslator]: Completed translation [2024-09-21 12:47:49,616 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:49 WrapperNode [2024-09-21 12:47:49,616 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 12:47:49,617 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 12:47:49,617 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 12:47:49,617 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 12:47:49,630 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 12:47:49" (1/1) ... [2024-09-21 12:47:49,630 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 12:47:49" (1/1) ... [2024-09-21 12:47:49,637 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 12:47:49" (1/1) ... [2024-09-21 12:47:49,656 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 12:47:49,658 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 12:47:49" (1/1) ... [2024-09-21 12:47:49,659 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 12:47:49" (1/1) ... [2024-09-21 12:47:49,664 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 12:47:49" (1/1) ... [2024-09-21 12:47:49,667 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 12:47:49" (1/1) ... [2024-09-21 12:47:49,672 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 12:47:49" (1/1) ... [2024-09-21 12:47:49,673 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 12:47:49" (1/1) ... [2024-09-21 12:47:49,674 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 12:47:49,677 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 12:47:49,678 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 12:47:49,678 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 12:47:49,679 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 12:47:49" (1/1) ... [2024-09-21 12:47:49,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 12:47:49,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 12:47:49,710 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 12:47:49,717 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 12:47:49,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 12:47:49,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 12:47:49,781 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 12:47:49,781 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 12:47:49,781 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 12:47:49,781 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 12:47:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 12:47:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 12:47:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 12:47:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 12:47:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 12:47:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 12:47:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 12:47:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 12:47:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-21 12:47:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 12:47:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-21 12:47:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-21 12:47:49,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 12:47:49,886 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 12:47:49,889 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 12:47:50,050 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 12:47:50,090 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 12:47:50,091 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-21 12:47:50,091 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 12:47:50,091 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 12:47:50,092 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 12:47:50,092 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 12:47:50,093 INFO L274 PluginConnector]: Referee initialized [2024-09-21 12:47:50,093 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 12:47:49" (1/4) ... [2024-09-21 12:47:50,094 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7ca1b36a 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 12:47:50,095 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 12:47:50,095 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7ca1b36a 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 12:47:50,095 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 12:47:49" (3/4) ... [2024-09-21 12:47:50,095 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7ca1b36a 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 12:47:50,095 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 12:47:50,097 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+cfa-reducer.c [2024-09-21 12:47:50,100 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 12:47:50,101 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-21 12:47:50,102 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-21 12:47:50,102 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-21 12:47:50,145 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-21 12:47:50,146 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 12:47:50,147 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 12:47:50,147 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 12:47:50,149 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 12:47:50,151 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:50,168 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 12:47:50,169 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 12:47:50,170 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 12:47:50,170 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 12:47:50,171 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 12:47:50,171 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 12:47:50,172 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 12:47:50,176 INFO L158 Benchmark]: Toolchain (without parser) took 884.67ms. Allocated memory is still 81.8MB. Free memory was 55.7MB in the beginning and 45.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2024-09-21 12:47:50,179 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:50,180 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 81.8MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 12:47:50,180 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.26ms. Allocated memory is still 81.8MB. Free memory was 55.7MB in the beginning and 42.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-21 12:47:50,181 INFO L158 Benchmark]: Boogie Preprocessor took 57.93ms. Allocated memory is still 81.8MB. Free memory was 42.0MB in the beginning and 40.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 12:47:50,182 INFO L158 Benchmark]: RCFGBuilder took 414.26ms. Allocated memory is still 81.8MB. Free memory was 40.0MB in the beginning and 50.7MB in the end (delta: -10.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-21 12:47:50,182 INFO L158 Benchmark]: Referee took 82.91ms. Allocated memory is still 81.8MB. Free memory was 50.7MB in the beginning and 45.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-21 12:47:50,185 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 81.8MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.26ms. Allocated memory is still 81.8MB. Free memory was 55.7MB in the beginning and 42.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.93ms. Allocated memory is still 81.8MB. Free memory was 42.0MB in the beginning and 40.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 414.26ms. Allocated memory is still 81.8MB. Free memory was 40.0MB in the beginning and 50.7MB in the end (delta: -10.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Referee took 82.91ms. Allocated memory is still 81.8MB. Free memory was 50.7MB in the beginning and 45.6MB in the end (delta: 5.2MB). 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 12:47:50,222 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...