This is Ultimate 0.2.4-dev-1d5fa63-m [2024-09-13 10:07:43,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:07:43,944 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-13 10:07:43,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:07:43,952 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:07:43,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:07:43,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:07:43,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:07:44,001 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:07:44,001 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:07:44,001 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:07:44,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:07:44,009 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:07:44,009 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:07:44,012 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:07:44,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:07:44,012 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:07:44,013 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:07:44,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 10:07:44,013 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:07:44,014 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:07:44,014 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:07:44,018 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:07:44,018 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:07:44,019 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:07:44,019 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:07:44,019 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:07:44,019 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:07:44,020 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:07:44,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:07:44,020 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:07:44,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:07:44,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:07:44,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:44,021 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:07:44,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:07:44,022 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:07:44,023 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 10:07:44,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 10:07:44,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:07:44,024 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:07:44,025 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:07:44,025 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:07:44,025 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:07:44,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:07:44,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:07:44,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:07:44,297 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:07:44,298 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:07:44,299 INFO L431 ainManager$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 [2024-09-13 10:07:44,351 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:07:44,351 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:07:44,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-13 10:07:45,763 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:07:45,947 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:07:45,948 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-13 10:07:45,955 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/f2279142a/80db532bd2eb44fd917fd495a2e88236/FLAGc1a629e86 [2024-09-13 10:07:46,340 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/f2279142a/80db532bd2eb44fd917fd495a2e88236 [2024-09-13 10:07:46,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:07:46,341 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:07:46,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:46,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:07:46,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:07:46,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:44" (1/2) ... [2024-09-13 10:07:46,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71db37d2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:46, skipping insertion in model container [2024-09-13 10:07:46,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:44" (1/2) ... [2024-09-13 10:07:46,352 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@203428fc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:46, skipping insertion in model container [2024-09-13 10:07:46,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:46" (2/2) ... [2024-09-13 10:07:46,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71db37d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46, skipping insertion in model container [2024-09-13 10:07:46,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:46" (2/2) ... [2024-09-13 10:07:46,359 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:07:46,359 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144)) [2024-09-13 10:07:46,382 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:07:46,554 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2024-09-13 10:07:46,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:46,571 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 10:07:46,590 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] Start Parsing Local [2024-09-13 10:07:46,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:46,633 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:07:46,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46 WrapperNode [2024-09-13 10:07:46,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:46,635 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:07:46,635 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:07:46,635 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:07:46,647 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,654 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,667 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-13 10:07:46,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,668 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,676 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:07:46,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:07:46,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:07:46,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:07:46,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (1/1) ... [2024-09-13 10:07:46,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:46,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:07:46,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-13 10:07:46,722 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-13 10:07:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:07:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:07:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:07:46,798 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 10:07:46,799 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:07:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:07:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:07:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:07:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:07:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 10:07:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 10:07:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 10:07:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:07:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:07:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 10:07:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:07:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-13 10:07:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-13 10:07:46,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:07:46,872 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:07:46,874 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:07:46,991 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:07:47,022 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:07:47,023 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 10:07:47,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:47 BoogieIcfgContainer [2024-09-13 10:07:47,023 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:07:47,024 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:07:47,024 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:07:47,025 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:07:47,025 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:44" (1/4) ... [2024-09-13 10:07:47,025 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3f52d086 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:07:47, skipping insertion in model container [2024-09-13 10:07:47,026 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:07:46" (2/4) ... [2024-09-13 10:07:47,026 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3f52d086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:07:47, skipping insertion in model container [2024-09-13 10:07:47,026 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:46" (3/4) ... [2024-09-13 10:07:47,026 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3f52d086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:07:47, skipping insertion in model container [2024-09-13 10:07:47,027 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:47" (4/4) ... [2024-09-13 10:07:47,028 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-09-13 10:07:47,032 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 10:07:47,033 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-13 10:07:47,033 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-13 10:07:47,033 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 10:07:47,080 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 10:07:47,083 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:07:47,084 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:07:47,085 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:07:47,087 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:07:47,088 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:47,115 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 10:07:47,120 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:47,121 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:07:47,121 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:07:47,122 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:07:47,122 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 10:07:47,124 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-13 10:07:47,129 INFO L158 Benchmark]: Toolchain (without parser) took 786.48ms. Allocated memory is still 163.6MB. Free memory was 95.2MB in the beginning and 122.8MB in the end (delta: -27.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:47,131 INFO L158 Benchmark]: Witness Parser took 0.38ms. Allocated memory is still 163.6MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:47,132 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 163.6MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:47,133 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.17ms. Allocated memory is still 163.6MB. Free memory was 95.0MB in the beginning and 81.9MB in the end (delta: 13.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-13 10:07:47,134 INFO L158 Benchmark]: Boogie Preprocessor took 48.77ms. Allocated memory is still 163.6MB. Free memory was 81.9MB in the beginning and 79.9MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-13 10:07:47,134 INFO L158 Benchmark]: RCFGBuilder took 338.66ms. Allocated memory is still 163.6MB. Free memory was 79.7MB in the beginning and 127.7MB in the end (delta: -48.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2024-09-13 10:07:47,135 INFO L158 Benchmark]: Referee took 103.11ms. Allocated memory is still 163.6MB. Free memory was 127.7MB in the beginning and 122.8MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-13 10:07:47,138 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 0.38ms. Allocated memory is still 163.6MB. Free memory is still 132.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.28ms. Allocated memory is still 163.6MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.17ms. Allocated memory is still 163.6MB. Free memory was 95.0MB in the beginning and 81.9MB in the end (delta: 13.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.77ms. Allocated memory is still 163.6MB. Free memory was 81.9MB in the beginning and 79.9MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 338.66ms. Allocated memory is still 163.6MB. Free memory was 79.7MB in the beginning and 127.7MB in the end (delta: -48.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Referee took 103.11ms. Allocated memory is still 163.6MB. Free memory was 127.7MB in the beginning and 122.8MB 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. [2024-09-13 10:07:47,174 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-dev-1d5fa63-m [2024-09-13 10:07:49,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:07:49,427 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-13 10:07:49,433 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:07:49,433 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:07:49,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:07:49,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:07:49,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:07:49,464 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:07:49,465 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:07:49,465 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:07:49,466 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:07:49,466 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:07:49,467 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:07:49,470 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:07:49,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:07:49,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:07:49,471 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:07:49,471 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:07:49,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:07:49,472 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:07:49,473 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:07:49,473 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:07:49,474 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-13 10:07:49,474 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-13 10:07:49,475 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:07:49,475 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-13 10:07:49,475 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:07:49,476 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:07:49,476 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:07:49,476 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:07:49,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:07:49,477 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:07:49,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:07:49,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:07:49,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:49,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:07:49,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:07:49,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:07:49,479 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-13 10:07:49,480 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-13 10:07:49,480 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:07:49,481 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:07:49,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:07:49,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:07:49,482 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-13 10:07:49,482 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:07:49,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:07:49,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:07:49,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:07:49,836 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:07:49,837 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:07:49,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-13 10:07:51,246 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:07:51,459 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:07:51,459 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-13 10:07:51,467 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/bd005bd23/79e0890b9e394123a65c48da67eeaff6/FLAG4d529bd92 [2024-09-13 10:07:51,841 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/bd005bd23/79e0890b9e394123a65c48da67eeaff6 [2024-09-13 10:07:51,844 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:07:51,845 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:07:51,847 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-13 10:07:51,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:07:51,901 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:07:51,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:51,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:07:51,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:07:51,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:51" (1/2) ... [2024-09-13 10:07:51,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@483f8915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:51, skipping insertion in model container [2024-09-13 10:07:51,912 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:51" (1/2) ... [2024-09-13 10:07:51,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@36c76e24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:51, skipping insertion in model container [2024-09-13 10:07:51,914 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:51" (2/2) ... [2024-09-13 10:07:51,915 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@483f8915 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:51, skipping insertion in model container [2024-09-13 10:07:51,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:51" (2/2) ... [2024-09-13 10:07:51,927 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:07:51,928 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144)) [2024-09-13 10:07:51,947 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:07:52,127 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2024-09-13 10:07:52,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:52,154 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 10:07:52,173 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] Start Parsing Local [2024-09-13 10:07:52,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:52,222 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:07:52,223 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:52 WrapperNode [2024-09-13 10:07:52,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:52,225 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:07:52,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:07:52,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:07:52,237 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,246 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,267 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-13 10:07:52,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,278 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,279 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,284 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,285 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:07:52,289 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:07:52,289 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:07:52,289 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:07:52,290 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:52,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:07:52,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-13 10:07:52,327 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-13 10:07:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:07:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:07:52,373 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:07:52,373 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 10:07:52,373 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 10:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 10:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 10:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:07:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:07:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-13 10:07:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:07:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-13 10:07:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-13 10:07:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:07:52,454 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:07:52,456 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:07:52,599 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:07:52,641 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:07:52,641 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 10:07:52,642 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:52 BoogieIcfgContainer [2024-09-13 10:07:52,642 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:07:52,643 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:07:52,643 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:07:52,644 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:07:52,644 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:07:51" (1/4) ... [2024-09-13 10:07:52,645 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1010d81f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:07:52, skipping insertion in model container [2024-09-13 10:07:52,646 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:51" (2/4) ... [2024-09-13 10:07:52,646 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1010d81f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:07:52, skipping insertion in model container [2024-09-13 10:07:52,646 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:52" (3/4) ... [2024-09-13 10:07:52,647 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1010d81f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:07:52, skipping insertion in model container [2024-09-13 10:07:52,647 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:52" (4/4) ... [2024-09-13 10:07:52,648 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-09-13 10:07:52,652 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 10:07:52,653 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-13 10:07:52,653 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-13 10:07:52,654 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 10:07:52,704 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 10:07:52,708 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:07:52,709 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:07:52,713 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:07:52,714 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:07:52,716 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:52,744 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 10:07:52,746 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:52,746 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:07:52,746 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:07:52,747 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:07:52,747 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 10:07:52,748 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:144) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-13 10:07:52,752 INFO L158 Benchmark]: Toolchain (without parser) took 849.99ms. Allocated memory is still 79.7MB. Free memory was 51.9MB in the beginning and 41.8MB in the end (delta: 10.0MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,753 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory is still 35.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:52,753 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 79.7MB. Free memory was 53.9MB in the beginning and 53.8MB in the end (delta: 87.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:52,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.99ms. Allocated memory is still 79.7MB. Free memory was 51.7MB in the beginning and 38.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,757 INFO L158 Benchmark]: Boogie Preprocessor took 63.70ms. Allocated memory is still 79.7MB. Free memory was 38.1MB in the beginning and 59.3MB in the end (delta: -21.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,758 INFO L158 Benchmark]: RCFGBuilder took 353.62ms. Allocated memory is still 79.7MB. Free memory was 59.3MB in the beginning and 47.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,759 INFO L158 Benchmark]: Referee took 107.46ms. Allocated memory is still 79.7MB. Free memory was 47.2MB in the beginning and 41.8MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,761 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 0.20ms. Allocated memory is still 56.6MB. Free memory is still 35.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.22ms. Allocated memory is still 79.7MB. Free memory was 53.9MB in the beginning and 53.8MB in the end (delta: 87.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.99ms. Allocated memory is still 79.7MB. Free memory was 51.7MB in the beginning and 38.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.70ms. Allocated memory is still 79.7MB. Free memory was 38.1MB in the beginning and 59.3MB in the end (delta: -21.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 353.62ms. Allocated memory is still 79.7MB. Free memory was 59.3MB in the beginning and 47.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 107.46ms. Allocated memory is still 79.7MB. Free memory was 47.2MB in the beginning and 41.8MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 10:07:52,792 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...