./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/underapprox_1-2.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/underapprox_1-2.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ca4ee3dd 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-acceleration/underapprox_1-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/underapprox_1-2.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-ca4ee3d-m [2024-09-20 20:08:43,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 20:08:43,632 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 20:08:43,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 20:08:43,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 20:08:43,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 20:08:43,665 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 20:08:43,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 20:08:43,665 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 20:08:43,666 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 20:08:43,666 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 20:08:43,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 20:08:43,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 20:08:43,667 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 20:08:43,667 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 20:08:43,668 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 20:08:43,668 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 20:08:43,668 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 20:08:43,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 20:08:43,669 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 20:08:43,669 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 20:08:43,669 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 20:08:43,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 20:08:43,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 20:08:43,670 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 20:08:43,670 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 20:08:43,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 20:08:43,670 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 20:08:43,671 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 20:08:43,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 20:08:43,671 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 20:08:43,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 20:08:43,672 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 20:08:43,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:08:43,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 20:08:43,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 20:08:43,673 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 20:08:43,673 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 20:08:43,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 20:08:43,673 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 20:08:43,673 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 20:08:43,674 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 20:08:43,674 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 20:08:43,675 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 20:08:43,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 20:08:43,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 20:08:43,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 20:08:43,900 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 20:08:43,900 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 20:08:43,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/underapprox_1-2.yml/witness-2.1.yml [2024-09-20 20:08:43,955 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 20:08:43,955 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 20:08:43,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/underapprox_1-2.c [2024-09-20 20:08:45,213 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 20:08:45,366 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 20:08:45,367 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/underapprox_1-2.c [2024-09-20 20:08:45,374 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/0251b983e/793e6868db4d42c0812254df868cd84d/FLAG845030a72 [2024-09-20 20:08:45,799 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/0251b983e/793e6868db4d42c0812254df868cd84d [2024-09-20 20:08:45,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 20:08:45,803 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 20:08:45,806 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 20:08:45,806 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 20:08:45,810 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 20:08:45,810 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 08:08:43" (1/2) ... [2024-09-20 20:08:45,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a9b38c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:45, skipping insertion in model container [2024-09-20 20:08:45,811 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 08:08:43" (1/2) ... [2024-09-20 20:08:45,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@34ea26d0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:45, skipping insertion in model container [2024-09-20 20:08:45,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:08:45" (2/2) ... [2024-09-20 20:08:45,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a9b38c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:45, skipping insertion in model container [2024-09-20 20:08:45,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:08:45" (2/2) ... [2024-09-20 20:08:45,823 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 20:08:45,824 INFO L1541 ArrayList]: Loop invariant at [L16-L19] ((((((((((((long long) y * 2) + 1) <= (((89478484 + ((long long) y * 178956971)) / 268435456) * 3)) && (y <= 4)) && (x == 2)) || (((((long long) y + 1) <= (3 * ((((long long) 715827883 * y) + 715827872) / 2147483648))) && (y <= 32)) && (5 == x))) || (((((y / 2) <= 32) && ((y % 2) == 0)) && (x == 6)) && (((y / 2) + 1) <= (3 * ((715827872 + ((long long) 715827883 * (y / 2))) / 2147483648))))) || (((x == 3) && (((long long) y + 1) <= (3 * ((((long long) y * 178956971) + 178956968) / 536870912)))) && (y <= 8))) || ((x == 0) && (y == 1))) || (((y <= 2) && (((long long) y + 1) <= (((((long long) 44739243 * y) + 44739242) / 134217728) * 3))) && (x == 1))) || (((y <= 16) && ((((long long) y * 2) + 1) <= (((((long long) 715827883 * y) + 357913936) / 1073741824) * 3))) && (x == 4))) [2024-09-20 20:08:45,824 INFO L1541 ArrayList]: Function contract at [L5]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 20:08:45,839 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 20:08:45,971 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-acceleration/underapprox_1-2.c[327,340] [2024-09-20 20:08:45,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:08:45,994 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 20:08:46,021 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-acceleration/underapprox_1-2.c[327,340] Start Parsing Local [2024-09-20 20:08:46,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:08:46,052 INFO L204 MainTranslator]: Completed translation [2024-09-20 20:08:46,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:46 WrapperNode [2024-09-20 20:08:46,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 20:08:46,054 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 20:08:46,054 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 20:08:46,055 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 20:08:46,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:46" (1/1) ... [2024-09-20 20:08:46,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:46" (1/1) ... [2024-09-20 20:08:46,077 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:46" (1/1) ... [2024-09-20 20:08:46,093 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-20 20:08:46,094 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:46" (1/1) ... [2024-09-20 20:08:46,094 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:46" (1/1) ... [2024-09-20 20:08:46,098 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:46" (1/1) ... [2024-09-20 20:08:46,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:46" (1/1) ... [2024-09-20 20:08:46,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:46" (1/1) ... [2024-09-20 20:08:46,106 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:46" (1/1) ... [2024-09-20 20:08:46,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 20:08:46,108 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 20:08:46,108 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 20:08:46,108 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 20:08:46,109 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:46" (1/1) ... [2024-09-20 20:08:46,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:08:46,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 20:08:46,145 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 20:08:46,147 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 20:08:46,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 20:08:46,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 20:08:46,188 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 20:08:46,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 20:08:46,189 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 20:08:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 20:08:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 20:08:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 20:08:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 20:08:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 20:08:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 20:08:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 20:08:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 20:08:46,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 20:08:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 20:08:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 20:08:46,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 20:08:46,255 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 20:08:46,259 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 20:08:46,480 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:08:46,490 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 20:08:46,514 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 20:08:46,515 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 20:08:46,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:08:46 BoogieIcfgContainer [2024-09-20 20:08:46,515 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 20:08:46,516 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 20:08:46,516 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 20:08:46,517 INFO L274 PluginConnector]: Referee initialized [2024-09-20 20:08:46,517 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 08:08:43" (1/4) ... [2024-09-20 20:08:46,517 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@13577866 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:08:46, skipping insertion in model container [2024-09-20 20:08:46,517 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 08:08:45" (2/4) ... [2024-09-20 20:08:46,518 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@13577866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:08:46, skipping insertion in model container [2024-09-20 20:08:46,518 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:46" (3/4) ... [2024-09-20 20:08:46,518 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@13577866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:08:46, skipping insertion in model container [2024-09-20 20:08:46,518 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:08:46" (4/4) ... [2024-09-20 20:08:46,519 INFO L79 RefereeObserver]: Analyzing ICFG underapprox_1-2.c [2024-09-20 20:08:46,522 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 20:08:46,523 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 20:08:46,523 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-20 20:08:46,523 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-20 20:08:46,524 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 20:08:46,524 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 20:08:46,524 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from loop head to error location [2024-09-20 20:08:46,571 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 20:08:46,573 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:46,574 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:46,574 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:46,575 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:46,577 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:46,618 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 20:08:46,619 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:46,620 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:46,620 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:46,621 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:46,636 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:46,665 INFO L520 InvariantChecker]: The annotation(s) from loop head L16-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:08:46,683 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 20:08:46,683 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:46,683 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:46,684 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:46,684 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:46,684 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:46,691 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 20:08:46,691 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:46,691 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:46,692 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:46,692 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:46,692 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:46,701 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 20:08:46,715 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:08:46,715 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:46,716 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:46,716 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:46,716 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:46,716 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:46,733 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:08:46,733 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:46,733 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:46,734 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:46,734 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:46,734 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:46,928 INFO L520 InvariantChecker]: The annotation(s) from loop head L16-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 20:08:46,945 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 20:08:46,946 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:46,946 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:46,946 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:46,946 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:46,946 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:46,948 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 20:08:46,948 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:46,948 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:46,948 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:46,948 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:46,952 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:46,955 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:08:46,962 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:08:46,963 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:46,963 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:46,963 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:46,963 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:46,963 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:46,964 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:08:46,964 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:46,965 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:46,965 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:46,965 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:46,965 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:08:46,966 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 20:08:46,969 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-20 20:08:46,969 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@13577866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 08:08:46, skipping insertion in model container [2024-09-20 20:08:46,969 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 20:08:46,970 INFO L158 Benchmark]: Toolchain (without parser) took 1166.89ms. Allocated memory is still 178.3MB. Free memory was 149.5MB in the beginning and 91.7MB in the end (delta: 57.7MB). Peak memory consumption was 57.1MB. Max. memory is 16.1GB. [2024-09-20 20:08:46,971 INFO L158 Benchmark]: Witness Parser took 0.36ms. Allocated memory is still 130.0MB. Free memory is still 96.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:08:46,971 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory was 104.4MB in the beginning and 104.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:08:46,971 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.04ms. Allocated memory is still 178.3MB. Free memory was 149.3MB in the beginning and 141.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-09-20 20:08:46,972 INFO L158 Benchmark]: Boogie Preprocessor took 53.09ms. Allocated memory is still 178.3MB. Free memory was 141.0MB in the beginning and 138.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 20:08:46,972 INFO L158 Benchmark]: RCFGBuilder took 407.13ms. Allocated memory is still 178.3MB. Free memory was 138.9MB in the beginning and 122.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-20 20:08:46,972 INFO L158 Benchmark]: Referee took 453.57ms. Allocated memory is still 178.3MB. Free memory was 122.1MB in the beginning and 91.7MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-09-20 20:08:46,974 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness. Annotation is a valid proof of correctness. Annotation is valid for all loop-free paths from loop head at line 16 to loop head at line 16. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 16. Annotation is valid for all loop-free paths from loop head at line 16 to check that procedure precondition always holds at line 16. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 7. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.36ms. Allocated memory is still 130.0MB. Free memory is still 96.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory was 104.4MB in the beginning and 104.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.04ms. Allocated memory is still 178.3MB. Free memory was 149.3MB in the beginning and 141.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.09ms. Allocated memory is still 178.3MB. Free memory was 141.0MB in the beginning and 138.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 407.13ms. Allocated memory is still 178.3MB. Free memory was 138.9MB in the beginning and 122.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Referee took 453.57ms. Allocated memory is still 178.3MB. Free memory was 122.1MB in the beginning and 91.7MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-20 20:08:46,995 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE