This is Ultimate 0.2.4-dev-1d5fa63-m [2024-09-13 10:07:49,413 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:07:49,479 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-13 10:07:49,487 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:07:49,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:07:49,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:07:49,520 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:07:49,520 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:07:49,521 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:07:49,522 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:07:49,523 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:07:49,523 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:07:49,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:07:49,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:07:49,526 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:07:49,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:07:49,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:07:49,526 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:07:49,527 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 10:07:49,527 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:07:49,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:07:49,529 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:07:49,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:07:49,530 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:07:49,530 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:07:49,530 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:07:49,530 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:07:49,530 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:07:49,531 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:07:49,531 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:07:49,531 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:07:49,531 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:07:49,531 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:07:49,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:49,532 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:07:49,532 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:07:49,532 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:07:49,532 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 10:07:49,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 10:07:49,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:07:49,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:07:49,537 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:07:49,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:07:49,537 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:07:49,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:07:49,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:07:49,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:07:49,821 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:07:49,822 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:07:49,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/jm2006.c.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-13 10:07:49,901 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:07:49,904 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:07:49,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2024-09-13 10:07:51,654 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:07:51,870 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:07:51,871 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2024-09-13 10:07:51,882 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/69d1626f3/62bb7f3d87834b7aacdd789e172f5d89/FLAG82e1e84df [2024-09-13 10:07:52,223 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/69d1626f3/62bb7f3d87834b7aacdd789e172f5d89 [2024-09-13 10:07:52,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:07:52,224 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:07:52,225 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:52,226 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:07:52,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:07:52,231 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 10:07:49" (1/2) ... [2024-09-13 10:07:52,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a40056c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:52, skipping insertion in model container [2024-09-13 10:07:52,232 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 10:07:49" (1/2) ... [2024-09-13 10:07:52,233 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@13616518 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:52, skipping insertion in model container [2024-09-13 10:07:52,233 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:52" (2/2) ... [2024-09-13 10:07:52,233 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a40056c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:52, skipping insertion in model container [2024-09-13 10:07:52,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:52" (2/2) ... [2024-09-13 10:07:52,238 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:07:52,239 INFO L1541 ArrayList]: Location invariant before [L34-L67] ((\old(__return_72) == __return_72) && ((main__j + main__x) == (main__i + main__y))) [2024-09-13 10:07:52,253 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:07:52,383 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/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2024-09-13 10:07:52,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:52,399 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 10:07:52,411 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/jm2006.c.i.v+cfa-reducer.c[1110,1123] Start Parsing Local [2024-09-13 10:07:52,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:52,446 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:07:52,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:52 WrapperNode [2024-09-13 10:07:52,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:52,448 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:07:52,449 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:07:52,449 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:07:52,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,465 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,478 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 10:07:52,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,486 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,487 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:07:52,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:07:52,494 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:07:52,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:07:52,495 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:52" (1/1) ... [2024-09-13 10:07:52,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:52,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:07:52,522 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 10:07:52,527 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 10:07:52,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:07:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:07:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:07:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 10:07:52,565 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:07:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:07:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:07:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:07:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:07:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 10:07:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 10:07:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 10:07:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:07:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:07:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 10:07:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:07:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-13 10:07:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-13 10:07:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:07:52,618 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:07:52,620 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:07:52,706 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:07:52,728 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:07:52,728 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 10:07:52,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:52 BoogieIcfgContainer [2024-09-13 10:07:52,728 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:07:52,729 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:07:52,729 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:07:52,730 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:07:52,730 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 10:07:49" (1/4) ... [2024-09-13 10:07:52,730 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@17ddd4d9 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 10:07:52,731 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:07:52" (2/4) ... [2024-09-13 10:07:52,731 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@17ddd4d9 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 10:07:52,731 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:52" (3/4) ... [2024-09-13 10:07:52,731 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@17ddd4d9 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 10:07:52,731 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:52" (4/4) ... [2024-09-13 10:07:52,732 INFO L79 RefereeObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2024-09-13 10:07:52,735 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 10:07:52,736 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-13 10:07:52,736 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 9 edges. [2024-09-13 10:07:52,736 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 10:07:52,784 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 10:07:52,785 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:07:52,786 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:07:52,786 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:07:52,790 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:07:52,792 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:52,815 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 10:07:52,816 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:52,816 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:07:52,817 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:07:52,817 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:07:52,818 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 10:07:52,818 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 10:07:52,823 INFO L158 Benchmark]: Toolchain (without parser) took 597.56ms. Allocated memory is still 159.4MB. Free memory was 132.3MB in the beginning and 99.0MB in the end (delta: 33.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,823 INFO L158 Benchmark]: Witness Parser took 3.82ms. Allocated memory is still 113.2MB. Free memory is still 65.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:52,824 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 113.2MB. Free memory was 87.6MB in the beginning and 87.5MB in the end (delta: 118.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:52,825 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.31ms. Allocated memory is still 159.4MB. Free memory was 132.3MB in the beginning and 118.9MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,825 INFO L158 Benchmark]: Boogie Preprocessor took 45.30ms. Allocated memory is still 159.4MB. Free memory was 118.9MB in the beginning and 116.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,826 INFO L158 Benchmark]: RCFGBuilder took 234.45ms. Allocated memory is still 159.4MB. Free memory was 116.8MB in the beginning and 105.2MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,827 INFO L158 Benchmark]: Referee took 92.14ms. Allocated memory is still 159.4MB. Free memory was 105.2MB in the beginning and 99.0MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-13 10:07:52,829 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 3.82ms. Allocated memory is still 113.2MB. Free memory is still 65.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.08ms. Allocated memory is still 113.2MB. Free memory was 87.6MB in the beginning and 87.5MB in the end (delta: 118.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.31ms. Allocated memory is still 159.4MB. Free memory was 132.3MB in the beginning and 118.9MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.30ms. Allocated memory is still 159.4MB. Free memory was 118.9MB in the beginning and 116.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 234.45ms. Allocated memory is still 159.4MB. Free memory was 116.8MB in the beginning and 105.2MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 92.14ms. Allocated memory is still 159.4MB. Free memory was 105.2MB in the beginning and 99.0MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 10:07:52,860 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.4-dev-1d5fa63-m [2024-09-13 10:07:54,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:07:55,020 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-13 10:07:55,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:07:55,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:07:55,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:07:55,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:07:55,051 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:07:55,051 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:07:55,051 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:07:55,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:07:55,052 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:07:55,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:07:55,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:07:55,055 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:07:55,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:07:55,056 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:07:55,056 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:07:55,056 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:07:55,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:07:55,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:07:55,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:07:55,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:07:55,057 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-13 10:07:55,060 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-13 10:07:55,060 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:07:55,060 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-13 10:07:55,060 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:07:55,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:07:55,061 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:07:55,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:07:55,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:07:55,061 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:07:55,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:07:55,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:07:55,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:55,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:07:55,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:07:55,062 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:07:55,062 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-13 10:07:55,062 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-13 10:07:55,063 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:07:55,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:07:55,063 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:07:55,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:07:55,063 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-13 10:07:55,064 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:07:55,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:07:55,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:07:55,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:07:55,358 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:07:55,362 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:07:55,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/jm2006.c.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-13 10:07:55,435 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:07:55,436 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:07:55,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2024-09-13 10:07:56,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:07:57,098 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:07:57,098 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2024-09-13 10:07:57,105 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/688a33c3b/ae378b561eed45dca4906cf2404a1e0f/FLAGd5b66a98f [2024-09-13 10:07:57,116 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/688a33c3b/ae378b561eed45dca4906cf2404a1e0f [2024-09-13 10:07:57,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:07:57,118 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:07:57,118 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:57,119 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:07:57,122 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:07:57,122 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 10:07:55" (1/2) ... [2024-09-13 10:07:57,123 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96c01af and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:57, skipping insertion in model container [2024-09-13 10:07:57,123 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 10:07:55" (1/2) ... [2024-09-13 10:07:57,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3f64008b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:57, skipping insertion in model container [2024-09-13 10:07:57,124 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:57" (2/2) ... [2024-09-13 10:07:57,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96c01af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:57, skipping insertion in model container [2024-09-13 10:07:57,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:57" (2/2) ... [2024-09-13 10:07:57,129 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:07:57,130 INFO L1541 ArrayList]: Location invariant before [L34-L67] ((\old(__return_72) == __return_72) && ((main__j + main__x) == (main__i + main__y))) [2024-09-13 10:07:57,143 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:07:57,274 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/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2024-09-13 10:07:57,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:57,296 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 10:07:57,314 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/jm2006.c.i.v+cfa-reducer.c[1110,1123] Start Parsing Local [2024-09-13 10:07:57,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:07:57,355 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:07:57,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:57 WrapperNode [2024-09-13 10:07:57,357 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:07:57,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:07:57,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:07:57,358 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:07:57,367 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:57" (1/1) ... [2024-09-13 10:07:57,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:57" (1/1) ... [2024-09-13 10:07:57,374 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:57" (1/1) ... [2024-09-13 10:07:57,386 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 10:07:57,387 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:57" (1/1) ... [2024-09-13 10:07:57,387 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:57" (1/1) ... [2024-09-13 10:07:57,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:57" (1/1) ... [2024-09-13 10:07:57,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:57" (1/1) ... [2024-09-13 10:07:57,407 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:57" (1/1) ... [2024-09-13 10:07:57,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:57" (1/1) ... [2024-09-13 10:07:57,414 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:07:57,416 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:07:57,417 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:07:57,417 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:07:57,418 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:57" (1/1) ... [2024-09-13 10:07:57,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:07:57,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:07:57,481 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 10:07:57,494 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 10:07:57,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:07:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:07:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:07:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 10:07:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:07:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:07:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:07:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:07:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:07:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 10:07:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 10:07:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 10:07:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:07:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:07:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-13 10:07:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:07:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-13 10:07:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-13 10:07:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:07:57,623 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:07:57,625 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:07:57,768 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:07:57,800 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:07:57,800 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 10:07:57,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:57 BoogieIcfgContainer [2024-09-13 10:07:57,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:07:57,802 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:07:57,802 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:07:57,803 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:07:57,803 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 10:07:55" (1/4) ... [2024-09-13 10:07:57,804 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5ff4a1e0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:07:57, skipping insertion in model container [2024-09-13 10:07:57,804 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:07:57" (2/4) ... [2024-09-13 10:07:57,804 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5ff4a1e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:07:57, skipping insertion in model container [2024-09-13 10:07:57,804 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:57" (3/4) ... [2024-09-13 10:07:57,805 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5ff4a1e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:07:57, skipping insertion in model container [2024-09-13 10:07:57,805 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:57" (4/4) ... [2024-09-13 10:07:57,806 INFO L79 RefereeObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2024-09-13 10:07:57,812 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 10:07:57,813 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-13 10:07:57,813 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 9 edges. [2024-09-13 10:07:57,814 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 10:07:57,850 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 10:07:57,851 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:07:57,851 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:07:57,852 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:07:57,853 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:07:57,854 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:57,879 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 10:07:57,884 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:07:57,884 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:07:57,885 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:07:57,885 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:07:57,885 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 10:07:57,886 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 10:07:57,891 INFO L158 Benchmark]: Toolchain (without parser) took 772.63ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 48.0MB in the beginning and 65.9MB in the end (delta: -17.9MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2024-09-13 10:07:57,892 INFO L158 Benchmark]: Witness Parser took 0.32ms. Allocated memory is still 71.3MB. Free memory was 48.2MB in the beginning and 48.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:57,894 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 71.3MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:07:57,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.61ms. Allocated memory is still 71.3MB. Free memory was 47.8MB in the beginning and 34.2MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-13 10:07:57,895 INFO L158 Benchmark]: Boogie Preprocessor took 57.90ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 34.2MB in the beginning and 84.8MB in the end (delta: -50.6MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-09-13 10:07:57,895 INFO L158 Benchmark]: RCFGBuilder took 385.32ms. Allocated memory is still 104.9MB. Free memory was 84.8MB in the beginning and 72.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 10:07:57,895 INFO L158 Benchmark]: Referee took 87.66ms. Allocated memory is still 104.9MB. Free memory was 72.2MB in the beginning and 65.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-13 10:07:57,898 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 0.32ms. Allocated memory is still 71.3MB. Free memory was 48.2MB in the beginning and 48.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.10ms. Allocated memory is still 71.3MB. Free memory is still 46.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.61ms. Allocated memory is still 71.3MB. Free memory was 47.8MB in the beginning and 34.2MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.90ms. Allocated memory was 71.3MB in the beginning and 104.9MB in the end (delta: 33.6MB). Free memory was 34.2MB in the beginning and 84.8MB in the end (delta: -50.6MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * RCFGBuilder took 385.32ms. Allocated memory is still 104.9MB. Free memory was 84.8MB in the beginning and 72.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 87.66ms. Allocated memory is still 104.9MB. Free memory was 72.2MB in the beginning and 65.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 10:07:57,925 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...