./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+cfa-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 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.v+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.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-a9b967e-m [2024-09-11 20:47:09,286 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:47:09,358 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:47:09,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:47:09,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:47:09,394 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:47:09,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:47:09,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:47:09,396 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:47:09,396 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:47:09,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:47:09,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:47:09,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:47:09,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:47:09,401 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:47:09,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:47:09,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:47:09,402 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:47:09,402 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:47:09,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:47:09,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:47:09,406 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:47:09,406 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:47:09,406 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:47:09,407 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:47:09,407 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:47:09,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:47:09,408 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:47:09,408 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:47:09,408 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:47:09,408 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:47:09,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:47:09,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:09,409 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:47:09,409 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:47:09,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:47:09,410 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:47:09,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:47:09,410 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:47:09,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:47:09,411 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:47:09,412 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:47:09,413 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:47:09,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:47:09,686 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:47:09,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:47:09,690 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:47:09,691 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:47:09,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-11 20:47:09,799 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:47:09,799 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:47:09,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-11 20:47:11,222 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:47:11,405 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:47:11,405 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-11 20:47:11,411 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/af21b0a85/fb780f5843bf4959bdb3d315a7af3d4b/FLAG347a718a3 [2024-09-11 20:47:11,424 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/af21b0a85/fb780f5843bf4959bdb3d315a7af3d4b [2024-09-11 20:47:11,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:47:11,426 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:47:11,427 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:11,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:47:11,435 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:47:11,436 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:47:09" (1/2) ... [2024-09-11 20:47:11,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b6f7d7 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:11, skipping insertion in model container [2024-09-11 20:47:11,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:47:09" (1/2) ... [2024-09-11 20:47:11,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4099182 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:11, skipping insertion in model container [2024-09-11 20:47:11,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:11" (2/2) ... [2024-09-11 20:47:11,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b6f7d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:11, skipping insertion in model container [2024-09-11 20:47:11,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:11" (2/2) ... [2024-09-11 20:47:11,452 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:47:11,452 INFO L1541 ArrayList]: Location invariant before [L32-L57] ((0 < main__y) || (main__x < 0)) [2024-09-11 20:47:11,468 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:47:11,638 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c[986,999] [2024-09-11 20:47:11,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:11,655 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:47:11,670 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c[986,999] Start Parsing Local [2024-09-11 20:47:11,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:11,759 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:47:11,759 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:11 WrapperNode [2024-09-11 20:47:11,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:11,760 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:47:11,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:47:11,761 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:47:11,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:11" (1/1) ... [2024-09-11 20:47:11,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:11" (1/1) ... [2024-09-11 20:47:11,781 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:11" (1/1) ... [2024-09-11 20:47:11,797 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]. [2024-09-11 20:47:11,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:11" (1/1) ... [2024-09-11 20:47:11,798 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:11" (1/1) ... [2024-09-11 20:47:11,801 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:11" (1/1) ... [2024-09-11 20:47:11,803 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:11" (1/1) ... [2024-09-11 20:47:11,804 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:11" (1/1) ... [2024-09-11 20:47:11,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:11" (1/1) ... [2024-09-11 20:47:11,806 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:47:11,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:47:11,807 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:47:11,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:47:11,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:11" (1/1) ... [2024-09-11 20:47:11,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:11,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:47:11,836 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) [2024-09-11 20:47:11,839 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 [2024-09-11 20:47:11,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:47:11,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:47:11,886 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:47:11,886 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:47:11,886 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:47:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:47:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:47:11,888 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:47:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:47:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:47:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:47:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:47:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:47:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:47:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-11 20:47:11,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:47:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-11 20:47:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-11 20:47:11,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:47:11,959 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:47:11,962 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:47:12,138 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-09-11 20:47:12,142 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:47:12,173 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:47:12,174 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:47:12,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:12 BoogieIcfgContainer [2024-09-11 20:47:12,175 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:47:12,176 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:47:12,176 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:47:12,177 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:47:12,177 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:47:09" (1/4) ... [2024-09-11 20:47:12,178 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4d896384 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:47:12, skipping insertion in model container [2024-09-11 20:47:12,179 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:47:11" (2/4) ... [2024-09-11 20:47:12,179 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4d896384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:47:12, skipping insertion in model container [2024-09-11 20:47:12,180 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:11" (3/4) ... [2024-09-11 20:47:12,180 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4d896384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:47:12, skipping insertion in model container [2024-09-11 20:47:12,180 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:12" (4/4) ... [2024-09-11 20:47:12,181 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+cfa-reducer.c [2024-09-11 20:47:12,185 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:47:12,186 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-11 20:47:12,186 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-11 20:47:12,186 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-11 20:47:12,234 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-11 20:47:12,235 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:12,236 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:12,236 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:12,237 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:12,239 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:12,270 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:47:12,271 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:12,272 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:12,272 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:12,272 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:12,273 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-11 20:47:12,274 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) [2024-09-11 20:47:12,278 INFO L158 Benchmark]: Toolchain (without parser) took 851.05ms. Allocated memory is still 161.5MB. Free memory was 88.4MB in the beginning and 110.2MB in the end (delta: -21.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:12,278 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 161.5MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:12,280 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 161.5MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:12,281 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.83ms. Allocated memory is still 161.5MB. Free memory was 88.3MB in the beginning and 131.2MB in the end (delta: -42.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-11 20:47:12,281 INFO L158 Benchmark]: Boogie Preprocessor took 45.48ms. Allocated memory is still 161.5MB. Free memory was 131.2MB in the beginning and 128.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:12,282 INFO L158 Benchmark]: RCFGBuilder took 368.80ms. Allocated memory is still 161.5MB. Free memory was 127.9MB in the beginning and 115.2MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:47:12,283 INFO L158 Benchmark]: Referee took 100.34ms. Allocated memory is still 161.5MB. Free memory was 115.2MB in the beginning and 110.2MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-11 20:47:12,287 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.20ms. Allocated memory is still 161.5MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.11ms. Allocated memory is still 161.5MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.83ms. Allocated memory is still 161.5MB. Free memory was 88.3MB in the beginning and 131.2MB in the end (delta: -42.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.48ms. Allocated memory is still 161.5MB. Free memory was 131.2MB in the beginning and 128.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 368.80ms. Allocated memory is still 161.5MB. Free memory was 127.9MB in the beginning and 115.2MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 100.34ms. Allocated memory is still 161.5MB. Free memory was 115.2MB in the beginning and 110.2MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:47:12,316 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 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.v+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.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-a9b967e-m [2024-09-11 20:47:14,474 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:47:14,548 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-11 20:47:14,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:47:14,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:47:14,590 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:47:14,591 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:47:14,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:47:14,592 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:47:14,596 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:47:14,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:47:14,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:47:14,597 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:47:14,597 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:47:14,598 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:47:14,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:47:14,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:47:14,598 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:47:14,599 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:47:14,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:47:14,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:47:14,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:47:14,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:47:14,603 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-11 20:47:14,603 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-11 20:47:14,604 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:47:14,604 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-11 20:47:14,604 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:47:14,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:47:14,605 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:47:14,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:47:14,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:47:14,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:47:14,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:47:14,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:14,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:47:14,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:47:14,608 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:47:14,609 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-11 20:47:14,609 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-11 20:47:14,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:47:14,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:47:14,610 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:47:14,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:47:14,610 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-11 20:47:14,610 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:47:14,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:47:14,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:47:14,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:47:14,940 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:47:14,940 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:47:14,941 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-11 20:47:16,492 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:47:16,669 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:47:16,670 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-11 20:47:16,682 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/e6185f614/e7028d8af9b2470fba42a3a1b6badb57/FLAG80fbbe20f [2024-09-11 20:47:17,069 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/e6185f614/e7028d8af9b2470fba42a3a1b6badb57 [2024-09-11 20:47:17,072 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:47:17,073 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:47:17,074 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-11 20:47:17,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:47:17,126 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:47:17,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:17,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:47:17,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:47:17,134 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:17" (1/2) ... [2024-09-11 20:47:17,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b5cd170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:17, skipping insertion in model container [2024-09-11 20:47:17,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:47:17" (1/2) ... [2024-09-11 20:47:17,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4211b776 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:47:17, skipping insertion in model container [2024-09-11 20:47:17,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:47:17" (2/2) ... [2024-09-11 20:47:17,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b5cd170 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:17, skipping insertion in model container [2024-09-11 20:47:17,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:47:17" (2/2) ... [2024-09-11 20:47:17,153 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:47:17,154 INFO L1541 ArrayList]: Location invariant before [L32-L57] ((0 < main__y) || (main__x < 0)) [2024-09-11 20:47:17,174 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:47:17,384 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c[986,999] [2024-09-11 20:47:17,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:17,409 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:47:17,426 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c[986,999] Start Parsing Local [2024-09-11 20:47:17,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:47:17,474 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:47:17,475 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:47:17 WrapperNode [2024-09-11 20:47:17,475 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:47:17,476 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:47:17,477 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:47:17,477 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:47:17,489 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 11.09 08:47:17" (1/1) ... [2024-09-11 20:47:17,490 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 11.09 08:47:17" (1/1) ... [2024-09-11 20:47:17,498 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 11.09 08:47:17" (1/1) ... [2024-09-11 20:47:17,515 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]. [2024-09-11 20:47:17,518 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 11.09 08:47:17" (1/1) ... [2024-09-11 20:47:17,518 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 11.09 08:47:17" (1/1) ... [2024-09-11 20:47:17,524 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 11.09 08:47:17" (1/1) ... [2024-09-11 20:47:17,526 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 11.09 08:47:17" (1/1) ... [2024-09-11 20:47:17,531 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 11.09 08:47:17" (1/1) ... [2024-09-11 20:47:17,533 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 11.09 08:47:17" (1/1) ... [2024-09-11 20:47:17,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:47:17,538 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:47:17,538 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:47:17,538 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:47:17,539 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 11.09 08:47:17" (1/1) ... [2024-09-11 20:47:17,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:47:17,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:47:17,592 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) [2024-09-11 20:47:17,599 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 [2024-09-11 20:47:17,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:47:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:47:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:47:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:47:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:47:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:47:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:47:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:47:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:47:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:47:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:47:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:47:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:47:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:47:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-11 20:47:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:47:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-11 20:47:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-11 20:47:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:47:17,732 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:47:17,735 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:47:17,907 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-09-11 20:47:17,907 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:47:17,941 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:47:17,942 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:47:17,942 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:17 BoogieIcfgContainer [2024-09-11 20:47:17,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:47:17,943 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:47:17,943 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:47:17,944 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:47:17,945 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:47:17" (1/4) ... [2024-09-11 20:47:17,945 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3d991aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:47:17, skipping insertion in model container [2024-09-11 20:47:17,945 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:47:17" (2/4) ... [2024-09-11 20:47:17,946 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3d991aa2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:47:17, skipping insertion in model container [2024-09-11 20:47:17,946 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 11.09 08:47:17" (3/4) ... [2024-09-11 20:47:17,946 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3d991aa2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:47:17, skipping insertion in model container [2024-09-11 20:47:17,946 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:47:17" (4/4) ... [2024-09-11 20:47:17,952 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+cfa-reducer.c [2024-09-11 20:47:17,956 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:47:17,956 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-11 20:47:17,957 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-11 20:47:17,957 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-11 20:47:18,017 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-11 20:47:18,022 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:47:18,023 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:47:18,023 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:47:18,025 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:47:18,027 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:18,066 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:47:18,067 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:47:18,068 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:47:18,068 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:47:18,069 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:47:18,069 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-11 20:47:18,070 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) [2024-09-11 20:47:18,076 INFO L158 Benchmark]: Toolchain (without parser) took 948.60ms. Allocated memory is still 75.5MB. Free memory was 40.3MB in the beginning and 27.7MB in the end (delta: 12.6MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2024-09-11 20:47:18,077 INFO L158 Benchmark]: CDTParser took 0.99ms. Allocated memory is still 54.5MB. Free memory was 26.5MB in the beginning and 26.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:18,078 INFO L158 Benchmark]: Witness Parser took 0.79ms. Allocated memory is still 75.5MB. Free memory is still 42.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:47:18,079 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.33ms. Allocated memory is still 75.5MB. Free memory was 40.1MB in the beginning and 48.7MB in the end (delta: -8.5MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2024-09-11 20:47:18,079 INFO L158 Benchmark]: Boogie Preprocessor took 58.39ms. Allocated memory is still 75.5MB. Free memory was 48.3MB in the beginning and 46.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:47:18,080 INFO L158 Benchmark]: RCFGBuilder took 405.20ms. Allocated memory is still 75.5MB. Free memory was 46.2MB in the beginning and 32.9MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:47:18,081 INFO L158 Benchmark]: Referee took 130.89ms. Allocated memory is still 75.5MB. Free memory was 32.9MB in the beginning and 27.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-11 20:47:18,084 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 0.99ms. Allocated memory is still 54.5MB. Free memory was 26.5MB in the beginning and 26.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.79ms. Allocated memory is still 75.5MB. Free memory is still 42.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.33ms. Allocated memory is still 75.5MB. Free memory was 40.1MB in the beginning and 48.7MB in the end (delta: -8.5MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.39ms. Allocated memory is still 75.5MB. Free memory was 48.3MB in the beginning and 46.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 405.20ms. Allocated memory is still 75.5MB. Free memory was 46.2MB in the beginning and 32.9MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 130.89ms. Allocated memory is still 75.5MB. Free memory was 32.9MB in the beginning and 27.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:47:18,117 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