./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/jm2006.c.i.v+cfa-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f1d7dc9d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/jm2006.c.i.v+cfa-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:25:59,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:25:59,142 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:25:59,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:25:59,148 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:25:59,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:25:59,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:25:59,171 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:25:59,171 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:25:59,175 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:25:59,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:25:59,175 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:25:59,175 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:25:59,176 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:25:59,176 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:25:59,177 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:25:59,177 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:25:59,177 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:25:59,177 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:25:59,178 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:25:59,178 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:25:59,178 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:25:59,178 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:25:59,178 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:25:59,179 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:25:59,179 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:25:59,179 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:25:59,179 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:25:59,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:25:59,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:25:59,180 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:25:59,180 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:25:59,180 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:25:59,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:59,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:25:59,181 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:25:59,181 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:25:59,181 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:25:59,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:25:59,182 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:25:59,182 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:25:59,182 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:25:59,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:25:59,183 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:25:59,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:25:59,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:25:59,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:25:59,410 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:25:59,411 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:25:59,412 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2024-09-20 13:26:00,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:26:00,790 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:26:00,791 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2024-09-20 13:26:00,796 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/f458bb2cc/4c2940b3c51a40009776dfcd539efd17/FLAG6c9b0ba2e [2024-09-20 13:26:01,212 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/f458bb2cc/4c2940b3c51a40009776dfcd539efd17 [2024-09-20 13:26:01,216 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:26:01,216 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:26:01,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/jm2006.c.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-20 13:26:01,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:26:01,250 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:26:01,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:01,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:26:01,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:26:01,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:01" (1/2) ... [2024-09-20 13:26:01,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e3a83ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:01, skipping insertion in model container [2024-09-20 13:26:01,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:01" (1/2) ... [2024-09-20 13:26:01,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2a24a4f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:01, skipping insertion in model container [2024-09-20 13:26:01,257 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:26:01" (2/2) ... [2024-09-20 13:26:01,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e3a83ec and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:01, skipping insertion in model container [2024-09-20 13:26:01,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:26:01" (2/2) ... [2024-09-20 13:26:01,262 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:26:01,264 INFO L1541 ArrayList]: Location invariant before [L34-L67] ((\old(__return_72) == __return_72) && (((long long) main__j + main__x) == ((long long) main__i + main__y))) [2024-09-20 13:26:01,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:26:01,407 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2024-09-20 13:26:01,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:01,423 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 13:26:01,437 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] Start Parsing Local [2024-09-20 13:26:01,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:01,471 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:26:01,472 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:01 WrapperNode [2024-09-20 13:26:01,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:01,473 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:26:01,473 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:26:01,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:26:01,482 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,487 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,496 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-20 13:26:01,496 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,496 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,499 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,500 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,500 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,501 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:26:01,503 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:26:01,503 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:26:01,503 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:26:01,504 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:01" (1/1) ... [2024-09-20 13:26:01,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:01,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:26:01,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-20 13:26:01,528 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-20 13:26:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:26:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:26:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:26:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:26:01,561 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:26:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:26:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:26:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:26:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:26:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:26:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:26:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 13:26:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:26:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:26:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 13:26:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:26:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-20 13:26:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-20 13:26:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:26:01,612 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:26:01,613 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:26:01,701 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:26:01,719 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:26:01,722 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:26:01,722 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:01 BoogieIcfgContainer [2024-09-20 13:26:01,722 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:26:01,723 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:26:01,723 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:26:01,724 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:26:01,724 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:26:01" (1/4) ... [2024-09-20 13:26:01,724 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@67b2eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:26:01, skipping insertion in model container [2024-09-20 13:26:01,724 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:26:01" (2/4) ... [2024-09-20 13:26:01,724 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@67b2eb1 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:26:01, skipping insertion in model container [2024-09-20 13:26:01,724 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:01" (3/4) ... [2024-09-20 13:26:01,725 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@67b2eb1 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:26:01, skipping insertion in model container [2024-09-20 13:26:01,725 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:01" (4/4) ... [2024-09-20 13:26:01,725 INFO L79 RefereeObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2024-09-20 13:26:01,730 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 13:26:01,731 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-20 13:26:01,731 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 9 edges. [2024-09-20 13:26:01,733 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-20 13:26:01,759 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-20 13:26:01,760 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:01,760 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:01,760 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:01,761 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:01,762 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:01,778 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:26:01,779 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:01,779 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:01,780 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:01,780 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:01,780 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-20 13:26:01,781 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-20 13:26:01,784 INFO L158 Benchmark]: Toolchain (without parser) took 533.79ms. Allocated memory is still 180.4MB. Free memory was 140.2MB in the beginning and 106.6MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-09-20 13:26:01,784 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:01,784 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 180.4MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:01,785 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.67ms. Allocated memory is still 180.4MB. Free memory was 140.2MB in the beginning and 126.8MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:26:01,785 INFO L158 Benchmark]: Boogie Preprocessor took 29.45ms. Allocated memory is still 180.4MB. Free memory was 126.8MB in the beginning and 124.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:26:01,786 INFO L158 Benchmark]: RCFGBuilder took 219.96ms. Allocated memory is still 180.4MB. Free memory was 124.7MB in the beginning and 112.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:26:01,786 INFO L158 Benchmark]: Referee took 59.86ms. Allocated memory is still 180.4MB. Free memory was 112.1MB in the beginning and 106.6MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-20 13:26:01,789 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 0.13ms. Allocated memory is still 117.4MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.10ms. Allocated memory is still 180.4MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.67ms. Allocated memory is still 180.4MB. Free memory was 140.2MB in the beginning and 126.8MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.45ms. Allocated memory is still 180.4MB. Free memory was 126.8MB in the beginning and 124.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 219.96ms. Allocated memory is still 180.4MB. Free memory was 124.7MB in the beginning and 112.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 59.86ms. Allocated memory is still 180.4MB. Free memory was 112.1MB in the beginning and 106.6MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:26:01,807 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/jm2006.c.i.v+cfa-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:26:03,525 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:26:03,586 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 13:26:03,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:26:03,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:26:03,617 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:26:03,618 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:26:03,618 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:26:03,619 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:26:03,620 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:26:03,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:26:03,621 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:26:03,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:26:03,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:26:03,624 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:26:03,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:26:03,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:26:03,624 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:26:03,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:26:03,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:26:03,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:26:03,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:26:03,625 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:26:03,625 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 13:26:03,626 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 13:26:03,626 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:26:03,628 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 13:26:03,628 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:26:03,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:26:03,629 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:26:03,629 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:26:03,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:26:03,629 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:26:03,629 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:26:03,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:26:03,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:03,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:26:03,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:26:03,630 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:26:03,630 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 13:26:03,630 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 13:26:03,631 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:26:03,631 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:26:03,631 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:26:03,631 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:26:03,631 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 13:26:03,632 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:26:03,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:26:03,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:26:03,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:26:03,907 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:26:03,907 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:26:03,908 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2024-09-20 13:26:05,212 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:26:05,336 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:26:05,337 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2024-09-20 13:26:05,342 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/61c731b19/a280dae36fb845579b9e97fa084cab41/FLAGe09c9a6fa [2024-09-20 13:26:05,352 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/61c731b19/a280dae36fb845579b9e97fa084cab41 [2024-09-20 13:26:05,353 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:26:05,354 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:26:05,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/jm2006.c.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-20 13:26:05,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:26:05,389 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:26:05,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:05,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:26:05,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:26:05,394 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:05" (1/2) ... [2024-09-20 13:26:05,395 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da1bc37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:05, skipping insertion in model container [2024-09-20 13:26:05,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:05" (1/2) ... [2024-09-20 13:26:05,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16250c27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:05, skipping insertion in model container [2024-09-20 13:26:05,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:26:05" (2/2) ... [2024-09-20 13:26:05,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da1bc37 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:05, skipping insertion in model container [2024-09-20 13:26:05,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:26:05" (2/2) ... [2024-09-20 13:26:05,404 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:26:05,405 INFO L1541 ArrayList]: Location invariant before [L34-L67] ((\old(__return_72) == __return_72) && (((long long) main__j + main__x) == ((long long) main__i + main__y))) [2024-09-20 13:26:05,419 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:26:05,563 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] [2024-09-20 13:26:05,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:05,586 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 13:26:05,600 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c[1110,1123] Start Parsing Local [2024-09-20 13:26:05,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:05,636 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:26:05,636 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:05 WrapperNode [2024-09-20 13:26:05,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:05,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:26:05,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:26:05,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:26:05,647 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:05" (1/1) ... [2024-09-20 13:26:05,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:05" (1/1) ... [2024-09-20 13:26:05,653 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:05" (1/1) ... [2024-09-20 13:26:05,666 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-20 13:26:05,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:05" (1/1) ... [2024-09-20 13:26:05,668 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:05" (1/1) ... [2024-09-20 13:26:05,672 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:05" (1/1) ... [2024-09-20 13:26:05,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:05" (1/1) ... [2024-09-20 13:26:05,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:05" (1/1) ... [2024-09-20 13:26:05,679 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:05" (1/1) ... [2024-09-20 13:26:05,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:26:05,682 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:26:05,683 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:26:05,683 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:26:05,684 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:05" (1/1) ... [2024-09-20 13:26:05,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:05,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:26:05,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-20 13:26:05,709 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-20 13:26:05,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:26:05,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:26:05,745 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:26:05,745 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:26:05,745 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:26:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:26:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:26:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:26:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:26:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:26:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:26:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 13:26:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:26:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:26:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-20 13:26:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:26:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-20 13:26:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-20 13:26:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:26:05,808 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:26:05,811 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:26:05,918 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:26:05,944 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:26:05,947 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:26:05,947 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:05 BoogieIcfgContainer [2024-09-20 13:26:05,947 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:26:05,947 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:26:05,947 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:26:05,949 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:26:05,949 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:26:05" (1/4) ... [2024-09-20 13:26:05,949 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@55dab08b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:26:05, skipping insertion in model container [2024-09-20 13:26:05,950 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:26:05" (2/4) ... [2024-09-20 13:26:05,951 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@55dab08b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:26:05, skipping insertion in model container [2024-09-20 13:26:05,951 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:05" (3/4) ... [2024-09-20 13:26:05,951 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@55dab08b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:26:05, skipping insertion in model container [2024-09-20 13:26:05,951 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:05" (4/4) ... [2024-09-20 13:26:05,952 INFO L79 RefereeObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2024-09-20 13:26:05,960 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 13:26:05,961 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-20 13:26:05,962 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 9 edges. [2024-09-20 13:26:05,962 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-20 13:26:05,997 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-20 13:26:05,997 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:05,998 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:05,998 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:06,000 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:06,002 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:06,028 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:26:06,029 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:06,030 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:06,030 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:06,030 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:06,031 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-20 13:26:06,031 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-20 13:26:06,034 INFO L158 Benchmark]: Toolchain (without parser) took 645.04ms. Allocated memory was 79.7MB in the beginning and 155.2MB in the end (delta: 75.5MB). Free memory was 40.9MB in the beginning and 127.6MB in the end (delta: -86.7MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2024-09-20 13:26:06,035 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 79.7MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:06,036 INFO L158 Benchmark]: Witness Parser took 0.09ms. Allocated memory is still 79.7MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:06,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.12ms. Allocated memory is still 79.7MB. Free memory was 40.6MB in the beginning and 50.9MB in the end (delta: -10.3MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-09-20 13:26:06,037 INFO L158 Benchmark]: Boogie Preprocessor took 44.01ms. Allocated memory is still 79.7MB. Free memory was 50.9MB in the beginning and 48.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:26:06,037 INFO L158 Benchmark]: RCFGBuilder took 264.58ms. Allocated memory is still 79.7MB. Free memory was 48.6MB in the beginning and 35.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:26:06,037 INFO L158 Benchmark]: Referee took 85.77ms. Allocated memory was 79.7MB in the beginning and 155.2MB in the end (delta: 75.5MB). Free memory was 35.7MB in the beginning and 127.6MB in the end (delta: -91.9MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2024-09-20 13:26:06,039 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 0.13ms. Allocated memory is still 79.7MB. Free memory is still 59.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.09ms. Allocated memory is still 79.7MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.12ms. Allocated memory is still 79.7MB. Free memory was 40.6MB in the beginning and 50.9MB in the end (delta: -10.3MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.01ms. Allocated memory is still 79.7MB. Free memory was 50.9MB in the beginning and 48.6MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 264.58ms. Allocated memory is still 79.7MB. Free memory was 48.6MB in the beginning and 35.7MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 85.77ms. Allocated memory was 79.7MB in the beginning and 155.2MB in the end (delta: 75.5MB). Free memory was 35.7MB in the beginning and 127.6MB in the end (delta: -91.9MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:26:06,063 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