./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/mod3.c.v+cfa-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/mod3.c.v+cfa-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 16:48:46,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 16:48:46,684 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-12 16:48:46,688 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 16:48:46,689 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 16:48:46,718 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 16:48:46,718 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 16:48:46,719 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 16:48:46,719 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 16:48:46,720 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 16:48:46,720 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 16:48:46,720 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 16:48:46,721 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 16:48:46,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 16:48:46,723 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 16:48:46,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 16:48:46,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 16:48:46,724 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 16:48:46,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 16:48:46,725 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 16:48:46,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 16:48:46,727 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 16:48:46,727 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 16:48:46,728 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 16:48:46,728 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 16:48:46,728 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 16:48:46,728 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 16:48:46,728 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 16:48:46,729 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 16:48:46,729 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 16:48:46,730 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 16:48:46,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 16:48:46,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:48:46,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 16:48:46,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 16:48:46,731 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 16:48:46,732 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 16:48:46,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 16:48:46,732 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 16:48:46,732 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 16:48:46,733 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 16:48:46,733 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 16:48:46,733 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-12 16:48:46,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 16:48:47,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 16:48:47,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 16:48:47,008 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 16:48:47,008 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 16:48:47,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2024-09-12 16:48:48,432 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 16:48:48,600 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 16:48:48,600 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2024-09-12 16:48:48,607 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/8e84ce2bf/423de6a4a85b4c4c99d518475ba0733e/FLAG762ef0fab [2024-09-12 16:48:48,992 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/8e84ce2bf/423de6a4a85b4c4c99d518475ba0733e [2024-09-12 16:48:48,995 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-12 16:48:48,995 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-12 16:48:48,996 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/mod3.c.v+cfa-reducer.yml/witness-2.1.yml [2024-09-12 16:48:49,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 16:48:49,043 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-12 16:48:49,045 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 16:48:49,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 16:48:49,050 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 16:48:49,052 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:48:48" (1/2) ... [2024-09-12 16:48:49,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@665351ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:49, skipping insertion in model container [2024-09-12 16:48:49,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:48:48" (1/2) ... [2024-09-12 16:48:49,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@75ae90bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:49, skipping insertion in model container [2024-09-12 16:48:49,055 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 04:48:49" (2/2) ... [2024-09-12 16:48:49,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@665351ff and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:48:49, skipping insertion in model container [2024-09-12 16:48:49,056 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 04:48:49" (2/2) ... [2024-09-12 16:48:49,063 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-12 16:48:49,065 INFO L1541 ArrayList]: Location invariant before [L10-L78] (((main__x <= (((main__x / 4294967296) * 4294967296) + (3 * ((((main__x / 4294967296) * -4294967296) + main__x) / 3)))) && (\old(__return_107) == __return_107)) || ((main__y == 1) && (\old(__return_107) == __return_107))) [2024-09-12 16:48:49,086 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 16:48:49,245 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-industry-pattern/mod3.c.v+cfa-reducer.c[1250,1263] [2024-09-12 16:48:49,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:48:49,275 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 16:48:49,299 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-industry-pattern/mod3.c.v+cfa-reducer.c[1250,1263] Start Parsing Local [2024-09-12 16:48:49,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:48:49,365 INFO L204 MainTranslator]: Completed translation [2024-09-12 16:48:49,365 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:48:49 WrapperNode [2024-09-12 16:48:49,365 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 16:48:49,369 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 16:48:49,369 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 16:48:49,369 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 16:48:49,387 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 04:48:49" (1/1) ... [2024-09-12 16:48:49,388 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 04:48:49" (1/1) ... [2024-09-12 16:48:49,408 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 04:48:49" (1/1) ... [2024-09-12 16:48:49,433 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 16:48:49,434 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 04:48:49" (1/1) ... [2024-09-12 16:48:49,434 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 04:48:49" (1/1) ... [2024-09-12 16:48:49,437 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 04:48:49" (1/1) ... [2024-09-12 16:48:49,439 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 04:48:49" (1/1) ... [2024-09-12 16:48:49,440 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 04:48:49" (1/1) ... [2024-09-12 16:48:49,441 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 04:48:49" (1/1) ... [2024-09-12 16:48:49,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 16:48:49,444 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 16:48:49,444 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 16:48:49,444 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 16:48:49,445 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 04:48:49" (1/1) ... [2024-09-12 16:48:49,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:48:49,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-12 16:48:49,491 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 16:48:49,492 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 16:48:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 16:48:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 16:48:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-12 16:48:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 16:48:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-12 16:48:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-12 16:48:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-12 16:48:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 16:48:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-12 16:48:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 16:48:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 16:48:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 16:48:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 16:48:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 16:48:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-12 16:48:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-12 16:48:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-12 16:48:49,603 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 16:48:49,605 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 16:48:49,806 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-09-12 16:48:49,806 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 16:48:49,842 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 16:48:49,842 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-12 16:48:49,843 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:48:49 BoogieIcfgContainer [2024-09-12 16:48:49,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 16:48:49,843 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-12 16:48:49,843 INFO L270 PluginConnector]: Initializing Referee... [2024-09-12 16:48:49,844 INFO L274 PluginConnector]: Referee initialized [2024-09-12 16:48:49,844 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 12.09 04:48:48" (1/4) ... [2024-09-12 16:48:49,845 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7cc012cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 04:48:49, skipping insertion in model container [2024-09-12 16:48:49,845 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 04:48:49" (2/4) ... [2024-09-12 16:48:49,845 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7cc012cc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 04:48:49, skipping insertion in model container [2024-09-12 16:48:49,847 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 04:48:49" (3/4) ... [2024-09-12 16:48:49,848 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7cc012cc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 04:48:49, skipping insertion in model container [2024-09-12 16:48:49,848 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 04:48:49" (4/4) ... [2024-09-12 16:48:49,849 INFO L79 RefereeObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.c [2024-09-12 16:48:49,852 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-12 16:48:49,853 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 1 edges. [2024-09-12 16:48:49,853 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 14 edges. [2024-09-12 16:48:49,854 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-12 16:48:49,891 INFO L314 BlockEncoder]: Initial Icfg 2 locations, 1 edges [2024-09-12 16:48:49,892 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:48:49,893 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:48:49,893 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:48:49,895 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:48:49,897 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:49,899 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:48:49,902 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:48:49,903 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:48:49,903 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:48:49,964 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 14 edges [2024-09-12 16:48:49,965 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:48:49,965 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:48:49,965 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:48:49,966 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:48:49,966 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:50,022 INFO L101 BaseMinimizeStates]: Removed 24 edges and 8 locations by large block encoding [2024-09-12 16:48:50,023 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:50,023 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:48:50,024 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:48:50,024 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:48:50,035 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 3 edges [2024-09-12 16:48:50,043 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-12 16:48:50,044 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7cc012cc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 12.09 04:48:50, skipping insertion in model container [2024-09-12 16:48:50,044 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-12 16:48:50,046 INFO L158 Benchmark]: Toolchain (without parser) took 1001.79ms. Allocated memory is still 165.7MB. Free memory was 93.6MB in the beginning and 102.4MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:48:50,046 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 165.7MB. Free memory is still 122.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:48:50,047 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 165.7MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:48:50,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.66ms. Allocated memory is still 165.7MB. Free memory was 93.4MB in the beginning and 135.5MB in the end (delta: -42.1MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2024-09-12 16:48:50,048 INFO L158 Benchmark]: Boogie Preprocessor took 74.56ms. Allocated memory is still 165.7MB. Free memory was 135.5MB in the beginning and 133.8MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-12 16:48:50,049 INFO L158 Benchmark]: RCFGBuilder took 398.77ms. Allocated memory is still 165.7MB. Free memory was 133.3MB in the beginning and 115.7MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-12 16:48:50,049 INFO L158 Benchmark]: Referee took 201.23ms. Allocated memory is still 165.7MB. Free memory was 115.7MB in the beginning and 102.4MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-12 16:48:50,051 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is not a valid proof of correctness. Annotation is not a valid proof of correctness. Not cycle-free: Subgraph between entry of procedure main and check that a call to reach_error is unreachable at line 63. Annotation is not valid for all loop-free paths from entry of procedure main to check that invariant of correctness witness holds at line 9. One counterexample starts in \old(__return_107)=2, __return_107=2, main__x=1, main__y=0 and ends in \old(__return_107)=2, __return_107=2. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 165.7MB. Free memory is still 122.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.19ms. Allocated memory is still 165.7MB. Free memory is still 95.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.66ms. Allocated memory is still 165.7MB. Free memory was 93.4MB in the beginning and 135.5MB in the end (delta: -42.1MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.56ms. Allocated memory is still 165.7MB. Free memory was 135.5MB in the beginning and 133.8MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 398.77ms. Allocated memory is still 165.7MB. Free memory was 133.3MB in the beginning and 115.7MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Referee took 201.23ms. Allocated memory is still 165.7MB. Free memory was 115.7MB in the beginning and 102.4MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-12 16:48:50,074 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE