./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/jm2006.c.i.v+cfa-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5189fb62 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/jm2006.c.i.v+cfa-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-5189fb6-m [2024-09-13 05:03:35,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 05:03:35,315 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-13 05:03:35,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 05:03:35,321 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 05:03:35,344 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 05:03:35,344 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 05:03:35,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 05:03:35,345 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 05:03:35,348 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 05:03:35,348 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 05:03:35,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 05:03:35,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 05:03:35,349 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 05:03:35,349 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 05:03:35,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 05:03:35,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 05:03:35,349 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 05:03:35,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 05:03:35,350 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 05:03:35,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 05:03:35,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 05:03:35,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 05:03:35,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 05:03:35,352 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 05:03:35,352 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 05:03:35,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 05:03:35,353 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 05:03:35,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 05:03:35,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 05:03:35,353 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 05:03:35,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 05:03:35,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 05:03:35,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:03:35,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 05:03:35,354 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 05:03:35,354 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 05:03:35,355 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 05:03:35,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 05:03:35,355 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 05:03:35,355 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 05:03:35,355 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 05:03:35,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 05:03:35,356 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 05:03:35,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 05:03:35,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 05:03:35,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 05:03:35,560 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 05:03:35,561 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 05:03:35,562 INFO L431 ainManager$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 05:03:35,620 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 05:03:35,621 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 05:03:35,622 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2024-09-13 05:03:36,733 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 05:03:36,889 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 05:03:36,890 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2024-09-13 05:03:36,896 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/8078de30b/981016ef1255436cb028da54ba004b96/FLAGf6e602572 [2024-09-13 05:03:37,301 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/8078de30b/981016ef1255436cb028da54ba004b96 [2024-09-13 05:03:37,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 05:03:37,302 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 05:03:37,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 05:03:37,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 05:03:37,308 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 05:03:37,309 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 05:03:35" (1/2) ... [2024-09-13 05:03:37,309 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5efe679 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:03:37, skipping insertion in model container [2024-09-13 05:03:37,309 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 05:03:35" (1/2) ... [2024-09-13 05:03:37,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3150f437 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:03:37, skipping insertion in model container [2024-09-13 05:03:37,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:03:37" (2/2) ... [2024-09-13 05:03:37,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5efe679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:37, skipping insertion in model container [2024-09-13 05:03:37,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:03:37" (2/2) ... [2024-09-13 05:03:37,316 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 05:03:37,316 INFO L1541 ArrayList]: Location invariant before [L34-L67] ((\old(__return_72) == __return_72) && ((main__j + main__x) == (main__i + main__y))) [2024-09-13 05:03:37,328 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 05:03:37,452 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 05:03:37,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:03:37,464 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 05:03:37,489 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 05:03:37,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:03:37,516 INFO L204 MainTranslator]: Completed translation [2024-09-13 05:03:37,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:37 WrapperNode [2024-09-13 05:03:37,517 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 05:03:37,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 05:03:37,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 05:03:37,517 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 05:03:37,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:37" (1/1) ... [2024-09-13 05:03:37,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:37" (1/1) ... [2024-09-13 05:03:37,530 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:37" (1/1) ... [2024-09-13 05:03:37,548 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 05:03:37,548 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:37" (1/1) ... [2024-09-13 05:03:37,548 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:37" (1/1) ... [2024-09-13 05:03:37,551 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:37" (1/1) ... [2024-09-13 05:03:37,553 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:37" (1/1) ... [2024-09-13 05:03:37,557 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:37" (1/1) ... [2024-09-13 05:03:37,558 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:37" (1/1) ... [2024-09-13 05:03:37,559 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 05:03:37,560 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 05:03:37,560 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 05:03:37,560 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 05:03:37,560 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:37" (1/1) ... [2024-09-13 05:03:37,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:03:37,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 05:03:37,584 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 05:03:37,586 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 05:03:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 05:03:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 05:03:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 05:03:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 05:03:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 05:03:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 05:03:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 05:03:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 05:03:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 05:03:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 05:03:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 05:03:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 05:03:37,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 05:03:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 05:03:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 05:03:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 05:03:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-13 05:03:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-13 05:03:37,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 05:03:37,669 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 05:03:37,671 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 05:03:37,781 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 05:03:37,803 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 05:03:37,803 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 05:03:37,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:03:37 BoogieIcfgContainer [2024-09-13 05:03:37,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 05:03:37,804 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 05:03:37,805 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 05:03:37,805 INFO L274 PluginConnector]: Referee initialized [2024-09-13 05:03:37,805 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 05:03:35" (1/4) ... [2024-09-13 05:03:37,806 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@72b2073 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 05:03:37, skipping insertion in model container [2024-09-13 05:03:37,806 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 05:03:37" (2/4) ... [2024-09-13 05:03:37,806 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@72b2073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 05:03:37, skipping insertion in model container [2024-09-13 05:03:37,806 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:37" (3/4) ... [2024-09-13 05:03:37,806 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@72b2073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 05:03:37, skipping insertion in model container [2024-09-13 05:03:37,806 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:03:37" (4/4) ... [2024-09-13 05:03:37,808 INFO L79 RefereeObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2024-09-13 05:03:37,810 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 05:03:37,811 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-13 05:03:37,811 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 9 edges. [2024-09-13 05:03:37,811 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 05:03:37,838 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 05:03:37,839 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 05:03:37,839 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 05:03:37,840 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 05:03:37,840 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 05:03:37,842 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 05:03:37,866 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 05:03:37,870 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 05:03:37,871 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 05:03:37,871 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 05:03:37,871 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 05:03:37,872 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 05:03:37,872 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 05:03:37,881 INFO L158 Benchmark]: Toolchain (without parser) took 577.90ms. Allocated memory was 167.8MB in the beginning and 213.9MB in the end (delta: 46.1MB). Free memory was 93.0MB in the beginning and 166.1MB in the end (delta: -73.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:03:37,881 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 167.8MB. Free memory was 119.4MB in the beginning and 119.2MB in the end (delta: 243.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:03:37,881 INFO L158 Benchmark]: CDTParser took 1.23ms. Allocated memory is still 167.8MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:03:37,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.73ms. Allocated memory is still 167.8MB. Free memory was 93.0MB in the beginning and 134.3MB in the end (delta: -41.4MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2024-09-13 05:03:37,882 INFO L158 Benchmark]: Boogie Preprocessor took 41.87ms. Allocated memory was 167.8MB in the beginning and 213.9MB in the end (delta: 46.1MB). Free memory was 134.3MB in the beginning and 185.0MB in the end (delta: -50.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 05:03:37,889 INFO L158 Benchmark]: RCFGBuilder took 244.41ms. Allocated memory is still 213.9MB. Free memory was 185.0MB in the beginning and 172.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 05:03:37,890 INFO L158 Benchmark]: Referee took 74.91ms. Allocated memory is still 213.9MB. Free memory was 172.4MB in the beginning and 166.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-13 05:03:37,893 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 0.15ms. Allocated memory is still 167.8MB. Free memory was 119.4MB in the beginning and 119.2MB in the end (delta: 243.3kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 1.23ms. Allocated memory is still 167.8MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.73ms. Allocated memory is still 167.8MB. Free memory was 93.0MB in the beginning and 134.3MB in the end (delta: -41.4MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.87ms. Allocated memory was 167.8MB in the beginning and 213.9MB in the end (delta: 46.1MB). Free memory was 134.3MB in the beginning and 185.0MB in the end (delta: -50.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 244.41ms. Allocated memory is still 213.9MB. Free memory was 185.0MB in the beginning and 172.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 74.91ms. Allocated memory is still 213.9MB. Free memory was 172.4MB in the beginning and 166.1MB 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 05:03:37,918 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/jm2006.c.i.v+cfa-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-5189fb6-m [2024-09-13 05:03:39,597 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 05:03:39,658 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-13 05:03:39,663 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 05:03:39,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 05:03:39,684 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 05:03:39,685 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 05:03:39,686 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 05:03:39,686 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 05:03:39,687 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 05:03:39,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 05:03:39,688 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 05:03:39,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 05:03:39,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 05:03:39,689 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 05:03:39,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 05:03:39,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 05:03:39,690 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 05:03:39,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 05:03:39,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 05:03:39,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 05:03:39,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 05:03:39,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 05:03:39,691 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-13 05:03:39,692 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-13 05:03:39,692 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 05:03:39,692 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-13 05:03:39,692 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 05:03:39,692 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 05:03:39,693 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 05:03:39,693 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 05:03:39,693 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 05:03:39,693 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 05:03:39,693 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 05:03:39,693 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 05:03:39,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:03:39,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 05:03:39,697 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 05:03:39,697 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 05:03:39,697 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-13 05:03:39,698 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-13 05:03:39,698 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 05:03:39,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 05:03:39,698 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 05:03:39,698 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 05:03:39,698 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-13 05:03:39,699 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 05:03:39,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 05:03:39,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 05:03:39,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 05:03:39,949 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 05:03:39,949 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 05:03:39,950 INFO L431 ainManager$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 05:03:41,181 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 05:03:41,323 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 05:03:41,324 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2024-09-13 05:03:41,333 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/6a3927d11/bd7ab813acc34388a0235ccb2c998478/FLAG5591e1e90 [2024-09-13 05:03:41,347 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/6a3927d11/bd7ab813acc34388a0235ccb2c998478 [2024-09-13 05:03:41,349 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 05:03:41,350 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 05:03:41,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/jm2006.c.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-13 05:03:41,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 05:03:41,389 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 05:03:41,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 05:03:41,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 05:03:41,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 05:03:41,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:03:41" (1/2) ... [2024-09-13 05:03:41,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be3ea4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:41, skipping insertion in model container [2024-09-13 05:03:41,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:03:41" (1/2) ... [2024-09-13 05:03:41,397 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@30e9809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:03:41, skipping insertion in model container [2024-09-13 05:03:41,398 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 05:03:41" (2/2) ... [2024-09-13 05:03:41,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be3ea4b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:03:41, skipping insertion in model container [2024-09-13 05:03:41,398 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 05:03:41" (2/2) ... [2024-09-13 05:03:41,404 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 05:03:41,404 INFO L1541 ArrayList]: Location invariant before [L34-L67] ((\old(__return_72) == __return_72) && ((main__j + main__x) == (main__i + main__y))) [2024-09-13 05:03:41,417 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 05:03:41,535 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 05:03:41,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:03:41,555 INFO L200 MainTranslator]: Completed pre-run [2024-09-13 05:03:41,568 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 05:03:41,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:03:41,605 INFO L204 MainTranslator]: Completed translation [2024-09-13 05:03:41,606 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:03:41 WrapperNode [2024-09-13 05:03:41,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 05:03:41,606 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 05:03:41,607 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 05:03:41,607 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 05:03:41,615 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 05:03:41" (1/1) ... [2024-09-13 05:03:41,615 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 05:03:41" (1/1) ... [2024-09-13 05:03:41,620 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 05:03:41" (1/1) ... [2024-09-13 05:03:41,628 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 05:03:41,628 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 05:03:41" (1/1) ... [2024-09-13 05:03:41,629 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 05:03:41" (1/1) ... [2024-09-13 05:03:41,633 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 05:03:41" (1/1) ... [2024-09-13 05:03:41,634 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 05:03:41" (1/1) ... [2024-09-13 05:03:41,635 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 05:03:41" (1/1) ... [2024-09-13 05:03:41,636 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 05:03:41" (1/1) ... [2024-09-13 05:03:41,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 05:03:41,637 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 05:03:41,637 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 05:03:41,638 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 05:03:41,638 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 05:03:41" (1/1) ... [2024-09-13 05:03:41,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:03:41,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 05:03:41,662 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 05:03:41,664 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 05:03:41,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 05:03:41,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 05:03:41,696 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 05:03:41,696 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-13 05:03:41,696 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 05:03:41,696 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 05:03:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 05:03:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 05:03:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 05:03:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-13 05:03:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 05:03:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 05:03:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 05:03:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 05:03:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-13 05:03:41,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 05:03:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-13 05:03:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-13 05:03:41,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 05:03:41,761 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 05:03:41,763 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 05:03:41,891 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 05:03:41,924 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 05:03:41,926 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 05:03:41,927 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:03:41 BoogieIcfgContainer [2024-09-13 05:03:41,927 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 05:03:41,928 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 05:03:41,929 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 05:03:41,929 INFO L274 PluginConnector]: Referee initialized [2024-09-13 05:03:41,929 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 05:03:41" (1/4) ... [2024-09-13 05:03:41,930 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@27f21f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 05:03:41, skipping insertion in model container [2024-09-13 05:03:41,930 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 05:03:41" (2/4) ... [2024-09-13 05:03:41,931 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@27f21f6f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 05:03:41, skipping insertion in model container [2024-09-13 05:03:41,931 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 05:03:41" (3/4) ... [2024-09-13 05:03:41,931 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@27f21f6f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 05:03:41, skipping insertion in model container [2024-09-13 05:03:41,931 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 05:03:41" (4/4) ... [2024-09-13 05:03:41,932 INFO L79 RefereeObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2024-09-13 05:03:41,935 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 05:03:41,936 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-13 05:03:41,937 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 9 edges. [2024-09-13 05:03:41,937 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 05:03:41,971 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 05:03:41,975 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 05:03:41,975 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 05:03:41,976 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 05:03:41,976 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 05:03:41,978 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 05:03:42,002 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-13 05:03:42,005 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 05:03:42,005 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 05:03:42,005 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 05:03:42,006 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 05:03:42,006 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-13 05:03:42,007 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 05:03:42,010 INFO L158 Benchmark]: Toolchain (without parser) took 620.57ms. Allocated memory is still 81.8MB. Free memory was 51.3MB in the beginning and 39.5MB in the end (delta: 11.9MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-09-13 05:03:42,010 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 37.0MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:03:42,011 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 81.8MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:03:42,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.40ms. Allocated memory is still 81.8MB. Free memory was 51.1MB in the beginning and 60.7MB in the end (delta: -9.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-13 05:03:42,014 INFO L158 Benchmark]: Boogie Preprocessor took 30.43ms. Allocated memory is still 81.8MB. Free memory was 60.7MB in the beginning and 58.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 05:03:42,015 INFO L158 Benchmark]: RCFGBuilder took 289.52ms. Allocated memory is still 81.8MB. Free memory was 58.3MB in the beginning and 45.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 05:03:42,015 INFO L158 Benchmark]: Referee took 80.41ms. Allocated memory is still 81.8MB. Free memory was 45.8MB in the beginning and 39.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-13 05:03:42,018 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 0.17ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 37.0MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 81.8MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.40ms. Allocated memory is still 81.8MB. Free memory was 51.1MB in the beginning and 60.7MB in the end (delta: -9.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.43ms. Allocated memory is still 81.8MB. Free memory was 60.7MB in the beginning and 58.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 289.52ms. Allocated memory is still 81.8MB. Free memory was 58.3MB in the beginning and 45.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 80.41ms. Allocated memory is still 81.8MB. Free memory was 45.8MB in the beginning and 39.5MB 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 05:03:42,042 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug