./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 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.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-dev-a9b967e-m [2024-09-12 16:48:30,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 16:48:30,641 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-12 16:48:30,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 16:48:30,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 16:48:30,677 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 16:48:30,678 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 16:48:30,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 16:48:30,679 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 16:48:30,679 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 16:48:30,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 16:48:30,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 16:48:30,680 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 16:48:30,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 16:48:30,681 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 16:48:30,681 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 16:48:30,682 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 16:48:30,682 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 16:48:30,683 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 16:48:30,683 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 16:48:30,683 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 16:48:30,686 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 16:48:30,687 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 16:48:30,688 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 16:48:30,688 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 16:48:30,688 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 16:48:30,689 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 16:48:30,689 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 16:48:30,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 16:48:30,689 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 16:48:30,690 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 16:48:30,690 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 16:48:30,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:48:30,693 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 16:48:30,693 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 16:48:30,694 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 16:48:30,694 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 16:48:30,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 16:48:30,695 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 16:48:30,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 16:48:30,695 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 16:48:30,696 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 16:48:30,696 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-12 16:48:30,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 16:48:31,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 16:48:31,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 16:48:31,010 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 16:48:31,010 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 16:48:31,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-12 16:48:32,410 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 16:48:32,585 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 16:48:32,585 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-12 16:48:32,594 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/83159877c/f43323039ef14c71a0b8fa7e899c0552/FLAG3e6c63fcc [2024-09-12 16:48:32,615 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/83159877c/f43323039ef14c71a0b8fa7e899c0552 [2024-09-12 16:48:32,618 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-12 16:48:32,619 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-12 16:48:32,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-12 16:48:32,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 16:48:32,670 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-12 16:48:32,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 16:48:32,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 16:48:32,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 16:48:32,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:48:32" (1/2) ... [2024-09-12 16:48:32,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6966f149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:32, skipping insertion in model container [2024-09-12 16:48:32,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:48:32" (1/2) ... [2024-09-12 16:48:32,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3d16ab34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:32, skipping insertion in model container [2024-09-12 16:48:32,682 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:48:32" (2/2) ... [2024-09-12 16:48:32,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6966f149 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:48:32, skipping insertion in model container [2024-09-12 16:48:32,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:48:32" (2/2) ... [2024-09-12 16:48:32,692 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-12 16:48:32,693 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144)) [2024-09-12 16:48:32,711 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 16:48:32,882 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2024-09-12 16:48:32,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:48:32,906 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 16:48:32,940 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] Start Parsing Local [2024-09-12 16:48:32,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:48:33,000 INFO L204 MainTranslator]: Completed translation [2024-09-12 16:48:33,002 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:48:33 WrapperNode [2024-09-12 16:48:33,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 16:48:33,003 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 16:48:33,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 16:48:33,004 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 16:48:33,017 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 12.09 04:48:33" (1/1) ... [2024-09-12 16:48:33,017 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 12.09 04:48:33" (1/1) ... [2024-09-12 16:48:33,024 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 12.09 04:48:33" (1/1) ... [2024-09-12 16:48:33,042 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]. [2024-09-12 16:48:33,043 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 12.09 04:48:33" (1/1) ... [2024-09-12 16:48:33,043 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 12.09 04:48:33" (1/1) ... [2024-09-12 16:48:33,050 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 12.09 04:48:33" (1/1) ... [2024-09-12 16:48:33,052 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 12.09 04:48:33" (1/1) ... [2024-09-12 16:48:33,053 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 12.09 04:48:33" (1/1) ... [2024-09-12 16:48:33,054 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 12.09 04:48:33" (1/1) ... [2024-09-12 16:48:33,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 16:48:33,059 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 16:48:33,059 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 16:48:33,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 16:48:33,060 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 12.09 04:48:33" (1/1) ... [2024-09-12 16:48:33,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:48:33,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-12 16:48:33,091 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) [2024-09-12 16:48:33,094 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 [2024-09-12 16:48:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 16:48:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 16:48:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-12 16:48:33,139 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 16:48:33,139 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 16:48:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-12 16:48:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-12 16:48:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-12 16:48:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 16:48:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 16:48:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 16:48:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-12 16:48:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 16:48:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 16:48:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 16:48:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 16:48:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-12 16:48:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-12 16:48:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-12 16:48:33,213 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 16:48:33,215 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 16:48:33,378 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-09-12 16:48:33,378 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 16:48:33,405 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 16:48:33,406 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-12 16:48:33,407 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:48:33 BoogieIcfgContainer [2024-09-12 16:48:33,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 16:48:33,408 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-12 16:48:33,409 INFO L270 PluginConnector]: Initializing Referee... [2024-09-12 16:48:33,410 INFO L274 PluginConnector]: Referee initialized [2024-09-12 16:48:33,410 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 12.09 04:48:32" (1/4) ... [2024-09-12 16:48:33,411 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@434007ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 04:48:33, skipping insertion in model container [2024-09-12 16:48:33,412 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:48:32" (2/4) ... [2024-09-12 16:48:33,412 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@434007ba and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 04:48:33, skipping insertion in model container [2024-09-12 16:48:33,413 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 12.09 04:48:33" (3/4) ... [2024-09-12 16:48:33,413 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@434007ba and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 04:48:33, skipping insertion in model container [2024-09-12 16:48:33,413 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:48:33" (4/4) ... [2024-09-12 16:48:33,414 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-09-12 16:48:33,419 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-12 16:48:33,420 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-12 16:48:33,421 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-12 16:48:33,421 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-12 16:48:33,460 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-12 16:48:33,462 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:48:33,462 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:48:33,463 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:48:33,464 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:48:33,465 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:33,490 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-12 16:48:33,491 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:33,491 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:48:33,491 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:48:33,492 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:48:33,495 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-12 16:48:33,495 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) [2024-09-12 16:48:33,499 INFO L158 Benchmark]: Toolchain (without parser) took 828.95ms. Allocated memory was 142.6MB in the beginning and 174.1MB in the end (delta: 31.5MB). Free memory was 69.5MB in the beginning and 125.8MB in the end (delta: -56.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:48:33,500 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 142.6MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:48:33,502 INFO L158 Benchmark]: Witness Parser took 0.59ms. Allocated memory is still 142.6MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:48:33,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.86ms. Allocated memory was 142.6MB in the beginning and 174.1MB in the end (delta: 31.5MB). Free memory was 69.3MB in the beginning and 145.8MB in the end (delta: -76.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-09-12 16:48:33,503 INFO L158 Benchmark]: Boogie Preprocessor took 54.18ms. Allocated memory is still 174.1MB. Free memory was 145.8MB in the beginning and 144.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 16:48:33,504 INFO L158 Benchmark]: RCFGBuilder took 348.91ms. Allocated memory is still 174.1MB. Free memory was 144.7MB in the beginning and 131.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-12 16:48:33,504 INFO L158 Benchmark]: Referee took 89.58ms. Allocated memory is still 174.1MB. Free memory was 131.1MB in the beginning and 125.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-12 16:48:33,508 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 0.11ms. Allocated memory is still 142.6MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.59ms. Allocated memory is still 142.6MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.86ms. Allocated memory was 142.6MB in the beginning and 174.1MB in the end (delta: 31.5MB). Free memory was 69.3MB in the beginning and 145.8MB in the end (delta: -76.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.18ms. Allocated memory is still 174.1MB. Free memory was 145.8MB in the beginning and 144.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 348.91ms. Allocated memory is still 174.1MB. Free memory was 144.7MB in the beginning and 131.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 89.58ms. Allocated memory is still 174.1MB. Free memory was 131.1MB in the beginning and 125.8MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-12 16:48:33,533 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-dev-a9b967e-m [2024-09-12 16:48:35,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 16:48:35,792 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-12 16:48:35,797 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 16:48:35,798 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 16:48:35,829 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 16:48:35,830 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 16:48:35,830 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 16:48:35,831 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 16:48:35,833 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 16:48:35,833 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 16:48:35,833 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 16:48:35,834 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 16:48:35,834 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 16:48:35,836 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 16:48:35,837 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 16:48:35,837 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 16:48:35,837 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 16:48:35,837 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 16:48:35,838 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 16:48:35,838 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 16:48:35,841 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 16:48:35,841 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 16:48:35,841 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-12 16:48:35,842 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-12 16:48:35,844 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 16:48:35,844 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-12 16:48:35,845 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 16:48:35,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 16:48:35,845 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 16:48:35,845 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 16:48:35,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 16:48:35,846 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 16:48:35,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 16:48:35,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:48:35,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 16:48:35,848 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 16:48:35,848 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 16:48:35,849 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-12 16:48:35,849 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-12 16:48:35,849 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 16:48:35,850 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 16:48:35,850 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 16:48:35,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 16:48:35,851 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-12 16:48:35,851 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-12 16:48:36,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 16:48:36,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 16:48:36,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 16:48:36,179 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 16:48:36,180 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 16:48:36,181 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-12 16:48:37,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 16:48:37,982 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 16:48:37,983 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-12 16:48:37,993 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/d29fdee95/dfbdfa7339054458ad7336eaf2b54e52/FLAG041ffb020 [2024-09-12 16:48:38,373 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/d29fdee95/dfbdfa7339054458ad7336eaf2b54e52 [2024-09-12 16:48:38,375 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-12 16:48:38,376 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-12 16:48:38,377 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-12 16:48:38,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 16:48:38,428 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-12 16:48:38,429 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 16:48:38,430 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 16:48:38,434 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 16:48:38,435 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:48:38" (1/2) ... [2024-09-12 16:48:38,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37312eea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:38, skipping insertion in model container [2024-09-12 16:48:38,438 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:48:38" (1/2) ... [2024-09-12 16:48:38,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46de8e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:38, skipping insertion in model container [2024-09-12 16:48:38,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:48:38" (2/2) ... [2024-09-12 16:48:38,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37312eea and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:48:38, skipping insertion in model container [2024-09-12 16:48:38,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:48:38" (2/2) ... [2024-09-12 16:48:38,452 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-12 16:48:38,452 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144)) [2024-09-12 16:48:38,472 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 16:48:38,632 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2024-09-12 16:48:38,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:48:38,655 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 16:48:38,671 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] Start Parsing Local [2024-09-12 16:48:38,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:48:38,716 INFO L204 MainTranslator]: Completed translation [2024-09-12 16:48:38,716 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:48:38 WrapperNode [2024-09-12 16:48:38,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 16:48:38,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 16:48:38,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 16:48:38,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 16:48:38,730 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 12.09 04:48:38" (1/1) ... [2024-09-12 16:48:38,731 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 12.09 04:48:38" (1/1) ... [2024-09-12 16:48:38,738 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 12.09 04:48:38" (1/1) ... [2024-09-12 16:48:38,755 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]. [2024-09-12 16:48:38,755 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 12.09 04:48:38" (1/1) ... [2024-09-12 16:48:38,755 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 12.09 04:48:38" (1/1) ... [2024-09-12 16:48:38,768 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 12.09 04:48:38" (1/1) ... [2024-09-12 16:48:38,770 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 12.09 04:48:38" (1/1) ... [2024-09-12 16:48:38,771 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 12.09 04:48:38" (1/1) ... [2024-09-12 16:48:38,772 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 12.09 04:48:38" (1/1) ... [2024-09-12 16:48:38,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 16:48:38,774 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 16:48:38,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 16:48:38,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 16:48:38,776 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 12.09 04:48:38" (1/1) ... [2024-09-12 16:48:38,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:48:38,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-12 16:48:38,808 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) [2024-09-12 16:48:38,811 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 [2024-09-12 16:48:38,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 16:48:38,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 16:48:38,856 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-12 16:48:38,856 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-12 16:48:38,857 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 16:48:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-12 16:48:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-12 16:48:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-12 16:48:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 16:48:38,857 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-12 16:48:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 16:48:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-12 16:48:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 16:48:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 16:48:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-12 16:48:38,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 16:48:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-12 16:48:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-12 16:48:38,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-12 16:48:38,924 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 16:48:38,926 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 16:48:39,064 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-09-12 16:48:39,064 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 16:48:39,096 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 16:48:39,096 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-12 16:48:39,097 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:48:39 BoogieIcfgContainer [2024-09-12 16:48:39,097 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 16:48:39,097 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-12 16:48:39,098 INFO L270 PluginConnector]: Initializing Referee... [2024-09-12 16:48:39,098 INFO L274 PluginConnector]: Referee initialized [2024-09-12 16:48:39,098 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 12.09 04:48:38" (1/4) ... [2024-09-12 16:48:39,099 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@634ba457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 04:48:39, skipping insertion in model container [2024-09-12 16:48:39,099 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:48:38" (2/4) ... [2024-09-12 16:48:39,099 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@634ba457 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 04:48:39, skipping insertion in model container [2024-09-12 16:48:39,099 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 12.09 04:48:38" (3/4) ... [2024-09-12 16:48:39,099 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@634ba457 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 04:48:39, skipping insertion in model container [2024-09-12 16:48:39,099 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:48:39" (4/4) ... [2024-09-12 16:48:39,102 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-09-12 16:48:39,105 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-12 16:48:39,106 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-12 16:48:39,106 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-12 16:48:39,107 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-12 16:48:39,141 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-12 16:48:39,142 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:48:39,143 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:48:39,143 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:48:39,144 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:48:39,148 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:39,180 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-12 16:48:39,181 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:39,181 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:48:39,182 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:48:39,182 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:48:39,183 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-12 16:48:39,183 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) [2024-09-12 16:48:39,187 INFO L158 Benchmark]: Toolchain (without parser) took 758.25ms. Allocated memory is still 71.3MB. Free memory was 39.7MB in the beginning and 41.4MB in the end (delta: -1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:48:39,187 INFO L158 Benchmark]: CDTParser took 0.88ms. Allocated memory is still 56.6MB. Free memory was 28.6MB in the beginning and 28.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:48:39,188 INFO L158 Benchmark]: Witness Parser took 1.67ms. Allocated memory is still 71.3MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:48:39,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.46ms. Allocated memory is still 71.3MB. Free memory was 39.6MB in the beginning and 43.7MB in the end (delta: -4.1MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-09-12 16:48:39,190 INFO L158 Benchmark]: Boogie Preprocessor took 56.50ms. Allocated memory is still 71.3MB. Free memory was 43.7MB in the beginning and 41.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 16:48:39,191 INFO L158 Benchmark]: RCFGBuilder took 322.47ms. Allocated memory is still 71.3MB. Free memory was 41.5MB in the beginning and 47.1MB in the end (delta: -5.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-12 16:48:39,192 INFO L158 Benchmark]: Referee took 87.91ms. Allocated memory is still 71.3MB. Free memory was 47.1MB in the beginning and 41.4MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-12 16:48:39,198 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 0.88ms. Allocated memory is still 56.6MB. Free memory was 28.6MB in the beginning and 28.5MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 1.67ms. Allocated memory is still 71.3MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.46ms. Allocated memory is still 71.3MB. Free memory was 39.6MB in the beginning and 43.7MB in the end (delta: -4.1MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.50ms. Allocated memory is still 71.3MB. Free memory was 43.7MB in the beginning and 41.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 322.47ms. Allocated memory is still 71.3MB. Free memory was 41.5MB in the beginning and 47.1MB in the end (delta: -5.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 87.91ms. Allocated memory is still 71.3MB. Free memory was 47.1MB in the beginning and 41.4MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-12 16:48:39,222 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