./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f1d7dc9d 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/gsv2008.c.i.p+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+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-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:25:52,516 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:25:52,582 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:25:52,588 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:25:52,589 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:25:52,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:25:52,616 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:25:52,617 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:25:52,617 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:25:52,618 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:25:52,619 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:25:52,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:25:52,620 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:25:52,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:25:52,621 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:25:52,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:25:52,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:25:52,624 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:25:52,625 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:25:52,625 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:25:52,625 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:25:52,626 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:25:52,626 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:25:52,627 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:25:52,627 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:25:52,628 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:25:52,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:25:52,628 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:25:52,628 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:25:52,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:25:52,629 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:25:52,629 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:25:52,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:25:52,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:52,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:25:52,631 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:25:52,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:25:52,632 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:25:52,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:25:52,632 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:25:52,632 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:25:52,633 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:25:52,633 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:25:52,633 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:25:52,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:25:52,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:25:52,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:25:52,952 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:25:52,953 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:25:52,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-20 13:25:54,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:25:54,560 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:25:54,561 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-20 13:25:54,571 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/a36163610/d5cc2322eda74b07a7a200b96d4fe751/FLAGfe6bdd6fa [2024-09-20 13:25:54,585 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/a36163610/d5cc2322eda74b07a7a200b96d4fe751 [2024-09-20 13:25:54,588 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:25:54,589 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:25:54,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-20 13:25:54,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:25:54,640 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:25:54,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:54,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:25:54,647 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:25:54,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:54" (1/2) ... [2024-09-20 13:25:54,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc06c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:54, skipping insertion in model container [2024-09-20 13:25:54,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:54" (1/2) ... [2024-09-20 13:25:54,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1ca336c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:54, skipping insertion in model container [2024-09-20 13:25:54,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:54" (2/2) ... [2024-09-20 13:25:54,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fc06c75 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:54, skipping insertion in model container [2024-09-20 13:25:54,653 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:54" (2/2) ... [2024-09-20 13:25:54,662 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:25:54,663 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144)) [2024-09-20 13:25:54,679 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:25:54,863 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2024-09-20 13:25:54,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:54,882 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 13:25:54,897 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] Start Parsing Local [2024-09-20 13:25:54,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:54,943 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:25:54,943 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:54 WrapperNode [2024-09-20 13:25:54,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:54,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:25:54,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:25:54,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:25:54,955 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 20.09 01:25:54" (1/1) ... [2024-09-20 13:25:54,955 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 20.09 01:25:54" (1/1) ... [2024-09-20 13:25:54,961 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 20.09 01:25:54" (1/1) ... [2024-09-20 13:25:54,973 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]. [2024-09-20 13:25:54,973 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 20.09 01:25:54" (1/1) ... [2024-09-20 13:25:54,973 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 20.09 01:25:54" (1/1) ... [2024-09-20 13:25:54,977 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 20.09 01:25:54" (1/1) ... [2024-09-20 13:25:54,979 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 20.09 01:25:54" (1/1) ... [2024-09-20 13:25:54,984 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 20.09 01:25:54" (1/1) ... [2024-09-20 13:25:54,984 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 20.09 01:25:54" (1/1) ... [2024-09-20 13:25:54,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:25:54,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:25:54,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:25:54,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:25:54,990 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 20.09 01:25:54" (1/1) ... [2024-09-20 13:25:54,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:55,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:25:55,019 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) [2024-09-20 13:25:55,024 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 [2024-09-20 13:25:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:25:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:25:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:25:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:25:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:25:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:25:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:25:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:25:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:25:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:25:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:25:55,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 13:25:55,067 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:25:55,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:25:55,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 13:25:55,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:25:55,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-20 13:25:55,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-20 13:25:55,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:25:55,150 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:25:55,152 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:25:55,291 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:25:55,316 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:25:55,317 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:25:55,317 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:55 BoogieIcfgContainer [2024-09-20 13:25:55,317 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:25:55,318 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:25:55,318 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:25:55,319 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:25:55,319 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:25:54" (1/4) ... [2024-09-20 13:25:55,319 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@93ad0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:25:55, skipping insertion in model container [2024-09-20 13:25:55,319 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:54" (2/4) ... [2024-09-20 13:25:55,320 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@93ad0a4 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:25:55, skipping insertion in model container [2024-09-20 13:25:55,320 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 20.09 01:25:54" (3/4) ... [2024-09-20 13:25:55,322 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@93ad0a4 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:25:55, skipping insertion in model container [2024-09-20 13:25:55,322 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:55" (4/4) ... [2024-09-20 13:25:55,323 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-09-20 13:25:55,326 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 13:25:55,327 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-20 13:25:55,327 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-20 13:25:55,327 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-20 13:25:55,363 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-20 13:25:55,364 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:55,364 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:55,365 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:55,366 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:55,371 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:55,403 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:25:55,408 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:55,409 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:55,409 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:55,409 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:55,410 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-20 13:25:55,410 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-20 13:25:55,417 INFO L158 Benchmark]: Toolchain (without parser) took 775.44ms. Allocated memory is still 169.9MB. Free memory was 92.5MB in the beginning and 128.5MB in the end (delta: -36.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:55,419 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 169.9MB. Free memory is still 139.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:55,420 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 169.9MB. Free memory was 94.5MB in the beginning and 94.5MB in the end (delta: 46.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:55,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.50ms. Allocated memory is still 169.9MB. Free memory was 92.5MB in the beginning and 79.2MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:25:55,422 INFO L158 Benchmark]: Boogie Preprocessor took 41.82ms. Allocated memory is still 169.9MB. Free memory was 79.2MB in the beginning and 77.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:25:55,422 INFO L158 Benchmark]: RCFGBuilder took 330.58ms. Allocated memory is still 169.9MB. Free memory was 77.2MB in the beginning and 133.9MB in the end (delta: -56.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-20 13:25:55,423 INFO L158 Benchmark]: Referee took 97.13ms. Allocated memory is still 169.9MB. Free memory was 133.9MB in the beginning and 128.5MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-20 13:25:55,426 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 0.18ms. Allocated memory is still 169.9MB. Free memory is still 139.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.19ms. Allocated memory is still 169.9MB. Free memory was 94.5MB in the beginning and 94.5MB in the end (delta: 46.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.50ms. Allocated memory is still 169.9MB. Free memory was 92.5MB in the beginning and 79.2MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.82ms. Allocated memory is still 169.9MB. Free memory was 79.2MB in the beginning and 77.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 330.58ms. Allocated memory is still 169.9MB. Free memory was 77.2MB in the beginning and 133.9MB in the end (delta: -56.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 97.13ms. Allocated memory is still 169.9MB. Free memory was 133.9MB in the beginning and 128.5MB in the end (delta: 5.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:25:55,460 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/gsv2008.c.i.p+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+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-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:25:57,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:25:57,674 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 13:25:57,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:25:57,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:25:57,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:25:57,712 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:25:57,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:25:57,713 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:25:57,713 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:25:57,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:25:57,716 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:25:57,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:25:57,717 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:25:57,717 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:25:57,717 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:25:57,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:25:57,718 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:25:57,718 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:25:57,719 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:25:57,719 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:25:57,723 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:25:57,724 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:25:57,724 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 13:25:57,724 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 13:25:57,724 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:25:57,725 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 13:25:57,727 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:25:57,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:25:57,727 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:25:57,728 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:25:57,728 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:25:57,728 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:25:57,742 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:25:57,743 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:25:57,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:57,744 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:25:57,744 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:25:57,744 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:25:57,745 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 13:25:57,745 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 13:25:57,746 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:25:57,746 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:25:57,746 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:25:57,747 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:25:57,747 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 13:25:57,747 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:25:58,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:25:58,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:25:58,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:25:58,113 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:25:58,114 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:25:58,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-20 13:25:59,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:25:59,852 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:25:59,853 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-20 13:25:59,865 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/47abf0556/3f039dbfb2564162a125346eb2d9af96/FLAG9c93c332b [2024-09-20 13:25:59,888 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/47abf0556/3f039dbfb2564162a125346eb2d9af96 [2024-09-20 13:25:59,891 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:25:59,892 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:25:59,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-20 13:25:59,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:25:59,944 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:25:59,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:59,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:25:59,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:25:59,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:59" (1/2) ... [2024-09-20 13:25:59,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11108523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:59, skipping insertion in model container [2024-09-20 13:25:59,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:59" (1/2) ... [2024-09-20 13:25:59,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7c121b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:59, skipping insertion in model container [2024-09-20 13:25:59,955 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:59" (2/2) ... [2024-09-20 13:25:59,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11108523 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:59, skipping insertion in model container [2024-09-20 13:25:59,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:59" (2/2) ... [2024-09-20 13:25:59,961 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:25:59,964 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144)) [2024-09-20 13:25:59,983 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:26:00,179 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2024-09-20 13:26:00,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:00,200 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 13:26:00,218 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] Start Parsing Local [2024-09-20 13:26:00,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:00,264 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:26:00,265 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:00 WrapperNode [2024-09-20 13:26:00,265 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:00,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:26:00,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:26:00,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:26:00,278 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 20.09 01:26:00" (1/1) ... [2024-09-20 13:26:00,279 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 20.09 01:26:00" (1/1) ... [2024-09-20 13:26:00,287 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 20.09 01:26:00" (1/1) ... [2024-09-20 13:26:00,300 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]. [2024-09-20 13:26:00,301 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 20.09 01:26:00" (1/1) ... [2024-09-20 13:26:00,301 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 20.09 01:26:00" (1/1) ... [2024-09-20 13:26:00,309 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 20.09 01:26:00" (1/1) ... [2024-09-20 13:26:00,314 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 20.09 01:26:00" (1/1) ... [2024-09-20 13:26:00,316 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 20.09 01:26:00" (1/1) ... [2024-09-20 13:26:00,317 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 20.09 01:26:00" (1/1) ... [2024-09-20 13:26:00,319 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:26:00,319 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:26:00,320 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:26:00,320 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:26:00,321 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 20.09 01:26:00" (1/1) ... [2024-09-20 13:26:00,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:00,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:26:00,350 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) [2024-09-20 13:26:00,356 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 [2024-09-20 13:26:00,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:26:00,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:26:00,401 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:26:00,401 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:26:00,401 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:26:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:26:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:26:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:26:00,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:26:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:26:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:26:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 13:26:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:26:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:26:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-20 13:26:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:26:00,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-20 13:26:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-20 13:26:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:26:00,478 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:26:00,481 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:26:00,627 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:26:00,669 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:26:00,670 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:26:00,671 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:00 BoogieIcfgContainer [2024-09-20 13:26:00,672 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:26:00,673 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:26:00,673 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:26:00,674 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:26:00,674 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:25:59" (1/4) ... [2024-09-20 13:26:00,675 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4fc90a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:26:00, skipping insertion in model container [2024-09-20 13:26:00,675 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:59" (2/4) ... [2024-09-20 13:26:00,676 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4fc90a8e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:26:00, skipping insertion in model container [2024-09-20 13:26:00,676 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 20.09 01:26:00" (3/4) ... [2024-09-20 13:26:00,676 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4fc90a8e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:26:00, skipping insertion in model container [2024-09-20 13:26:00,677 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:00" (4/4) ... [2024-09-20 13:26:00,678 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-09-20 13:26:00,681 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 13:26:00,682 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-20 13:26:00,682 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-20 13:26:00,683 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-20 13:26:00,727 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-20 13:26:00,728 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:00,728 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:00,729 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:00,731 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:00,733 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:00,761 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:26:00,765 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:00,765 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:00,765 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:00,766 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:00,767 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-20 13:26:00,767 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-20 13:26:00,774 INFO L158 Benchmark]: Toolchain (without parser) took 828.76ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 30.5MB in the beginning and 56.4MB in the end (delta: -25.8MB). Peak memory consumption was 730.2kB. Max. memory is 16.1GB. [2024-09-20 13:26:00,774 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory was 46.8MB in the beginning and 46.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:00,774 INFO L158 Benchmark]: Witness Parser took 0.82ms. Allocated memory is still 62.9MB. Free memory is still 32.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:00,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.38ms. Allocated memory is still 62.9MB. Free memory was 30.3MB in the beginning and 34.4MB in the end (delta: -4.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2024-09-20 13:26:00,776 INFO L158 Benchmark]: Boogie Preprocessor took 52.80ms. Allocated memory is still 62.9MB. Free memory was 34.4MB in the beginning and 32.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:26:00,778 INFO L158 Benchmark]: RCFGBuilder took 352.51ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 32.3MB in the beginning and 62.0MB in the end (delta: -29.7MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2024-09-20 13:26:00,779 INFO L158 Benchmark]: Referee took 99.21ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 56.4MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-20 13:26:00,782 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 0.16ms. Allocated memory is still 62.9MB. Free memory was 46.8MB in the beginning and 46.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.82ms. Allocated memory is still 62.9MB. Free memory is still 32.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.38ms. Allocated memory is still 62.9MB. Free memory was 30.3MB in the beginning and 34.4MB in the end (delta: -4.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.80ms. Allocated memory is still 62.9MB. Free memory was 34.4MB in the beginning and 32.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 352.51ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 32.3MB in the beginning and 62.0MB in the end (delta: -29.7MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * Referee took 99.21ms. Allocated memory is still 86.0MB. Free memory was 62.0MB in the beginning and 56.4MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:26:00,815 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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug