./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/functions_1-1.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/functions_1-1.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-acceleration/functions_1-1.c ../results/automizer-verification-files/SV-COMP24_unreach-call/functions_1-1.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 13:25:16,579 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:25:16,651 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:25:16,655 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:25:16,656 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:25:16,681 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:25:16,682 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:25:16,683 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:25:16,683 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:25:16,684 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:25:16,685 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:25:16,685 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:25:16,686 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:25:16,687 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:25:16,688 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:25:16,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:25:16,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:25:16,690 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:25:16,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:25:16,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:25:16,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:25:16,694 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:25:16,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:25:16,694 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:25:16,695 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:25:16,695 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:25:16,695 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:25:16,695 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:25:16,696 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:25:16,696 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:25:16,696 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:25:16,696 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:25:16,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:25:16,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:16,697 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:25:16,697 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:25:16,698 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:25:16,698 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:25:16,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:25:16,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:25:16,699 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:25:16,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:25:16,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:25:16,700 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:25:16,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:25:16,997 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:25:17,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:25:17,001 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:25:17,003 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:25:17,005 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/functions_1-1.yml/witness-2.1.yml [2024-09-20 13:25:17,055 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:25:17,057 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:25:17,058 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/functions_1-1.c [2024-09-20 13:25:18,414 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:25:18,575 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:25:18,575 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/functions_1-1.c [2024-09-20 13:25:18,582 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/a1a659908/c7a2f092e7d64c33bd0bf590abfc30a1/FLAGa7fb4bf12 [2024-09-20 13:25:18,973 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/a1a659908/c7a2f092e7d64c33bd0bf590abfc30a1 [2024-09-20 13:25:18,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:25:18,975 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:25:18,976 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:18,976 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:25:18,981 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:25:18,982 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 01:25:17" (1/2) ... [2024-09-20 13:25:18,983 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c1e63a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:18, skipping insertion in model container [2024-09-20 13:25:18,983 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 01:25:17" (1/2) ... [2024-09-20 13:25:18,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@88c723d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:18, skipping insertion in model container [2024-09-20 13:25:18,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:18" (2/2) ... [2024-09-20 13:25:18,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c1e63a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:18, skipping insertion in model container [2024-09-20 13:25:18,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:18" (2/2) ... [2024-09-20 13:25:18,992 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:25:18,992 INFO L1541 ArrayList]: Loop invariant at [L19-L21] ((x % 2) == 0) [2024-09-20 13:25:18,992 INFO L1541 ArrayList]: Function contract at [L5]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 13:25:18,993 INFO L1541 ArrayList]: Function contract at [L12]: requires null, ensures (((\old(z) % 2) != 0) || ((\result % 2) == 0)) [2024-09-20 13:25:19,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:25:19,156 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/functions_1-1.c[325,338] [2024-09-20 13:25:19,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:19,181 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 13:25:19,220 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/functions_1-1.c[325,338] Start Parsing Global Start Parsing Local [2024-09-20 13:25:19,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:19,243 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:25:19,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19 WrapperNode [2024-09-20 13:25:19,244 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:19,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:25:19,245 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:25:19,245 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:25:19,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,263 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,270 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 13:25:19,270 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,271 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,284 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:25:19,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:25:19,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:25:19,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:25:19,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (1/1) ... [2024-09-20 13:25:19,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:19,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:25:19,311 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 13:25:19,316 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 13:25:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:25:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:25:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:25:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:25:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-09-20 13:25:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:25:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:25:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:25:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:25:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:25:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:25:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-09-20 13:25:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:25:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:25:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 13:25:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:25:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 13:25:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 13:25:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:25:19,422 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:25:19,426 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:25:19,560 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:25:19,573 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:25:19,606 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:25:19,608 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 13:25:19,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:19 BoogieIcfgContainer [2024-09-20 13:25:19,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:25:19,609 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:25:19,609 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:25:19,610 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:25:19,610 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 01:25:17" (1/4) ... [2024-09-20 13:25:19,610 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7e792e39 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:25:19, skipping insertion in model container [2024-09-20 13:25:19,611 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:25:18" (2/4) ... [2024-09-20 13:25:19,611 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7e792e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:25:19, skipping insertion in model container [2024-09-20 13:25:19,611 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:19" (3/4) ... [2024-09-20 13:25:19,611 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7e792e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:25:19, skipping insertion in model container [2024-09-20 13:25:19,611 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:19" (4/4) ... [2024-09-20 13:25:19,613 INFO L79 RefereeObserver]: Analyzing ICFG functions_1-1.c [2024-09-20 13:25:19,615 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 13:25:19,616 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L19-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:25:19,616 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 2 edges. [2024-09-20 13:25:19,616 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 13:25:19,616 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L19-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 13:25:19,616 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 13:25:19,616 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 13:25:19,617 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from procedure entry to loop head [2024-09-20 13:25:19,651 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 13:25:19,652 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:19,653 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:19,653 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:19,656 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:19,658 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,672 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 13:25:19,673 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,673 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:19,674 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:19,674 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:19,679 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:19,704 INFO L520 InvariantChecker]: The annotation(s) from loop head L19-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:25:19,718 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 13:25:19,718 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:19,719 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:19,719 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:19,719 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:19,719 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,728 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 13:25:19,730 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,730 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:19,731 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:19,731 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:19,731 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:19,738 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location fErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:25:19,753 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 13:25:19,757 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:19,757 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:19,757 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:19,758 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:19,758 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,759 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 13:25:19,759 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,760 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:19,760 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:19,762 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:19,762 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:19,764 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:25:19,774 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 13:25:19,778 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:19,779 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:19,779 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:19,779 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:19,779 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,793 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 13:25:19,797 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,797 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:19,798 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:19,798 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:19,798 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:19,800 INFO L520 InvariantChecker]: The annotation(s) from loop head L19-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:25:19,811 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:25:19,814 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:19,814 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:19,814 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:19,815 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:19,815 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,822 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:25:19,823 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,823 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:19,823 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:19,823 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:19,824 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:19,828 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:25:19,836 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:25:19,836 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:19,837 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:19,837 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:19,837 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:19,837 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,845 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:25:19,846 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:19,846 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:19,846 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:19,846 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:19,846 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:19,848 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:25:19,851 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-20 13:25:19,853 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7e792e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:25:19, skipping insertion in model container [2024-09-20 13:25:19,853 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:25:19,855 INFO L158 Benchmark]: Toolchain (without parser) took 879.38ms. Allocated memory is still 161.5MB. Free memory was 127.4MB in the beginning and 113.5MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:25:19,856 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 111.1MB. Free memory was 82.1MB in the beginning and 81.9MB in the end (delta: 168.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:19,857 INFO L158 Benchmark]: CDTParser took 0.83ms. Allocated memory is still 111.1MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:19,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.59ms. Allocated memory is still 161.5MB. Free memory was 127.1MB in the beginning and 113.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:25:19,858 INFO L158 Benchmark]: Boogie Preprocessor took 39.02ms. Allocated memory is still 161.5MB. Free memory was 113.5MB in the beginning and 112.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:19,859 INFO L158 Benchmark]: RCFGBuilder took 324.00ms. Allocated memory is still 161.5MB. Free memory was 111.4MB in the beginning and 128.1MB in the end (delta: -16.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-20 13:25:19,859 INFO L158 Benchmark]: Referee took 243.88ms. Allocated memory is still 161.5MB. Free memory was 128.1MB in the beginning and 113.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:25:19,862 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 entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. 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 loop head at line 19 to loop head at line 19. Annotation is valid for all loop-free paths from loop head at line 19 to check that procedure precondition always holds at line 19. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 19. Annotation is valid for all loop-free paths from entry of procedure f to exit of procedure f. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 111.1MB. Free memory was 82.1MB in the beginning and 81.9MB in the end (delta: 168.0kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.83ms. Allocated memory is still 111.1MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.59ms. Allocated memory is still 161.5MB. Free memory was 127.1MB in the beginning and 113.5MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.02ms. Allocated memory is still 161.5MB. Free memory was 113.5MB in the beginning and 112.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 324.00ms. Allocated memory is still 161.5MB. Free memory was 111.4MB in the beginning and 128.1MB in the end (delta: -16.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 243.88ms. Allocated memory is still 161.5MB. Free memory was 128.1MB in the beginning and 113.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-20 13:25:19,888 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