./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-acceleration/simple_4-2.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/simple_4-2.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fb1cb0b9 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/simple_4-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/simple_4-2.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-fb1cb0b-m [2024-09-25 11:45:31,965 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:45:32,014 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 11:45:32,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:45:32,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:45:32,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:45:32,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:45:32,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:45:32,051 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:45:32,051 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:45:32,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:45:32,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:45:32,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:45:32,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:45:32,052 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:45:32,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:45:32,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:45:32,053 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:45:32,053 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 11:45:32,055 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:45:32,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:45:32,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:45:32,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:45:32,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:45:32,058 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:45:32,058 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:45:32,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:45:32,058 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:45:32,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:45:32,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:45:32,060 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:45:32,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:45:32,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:45:32,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:45:32,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:45:32,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:45:32,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:45:32,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 11:45:32,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 11:45:32,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:45:32,069 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:45:32,070 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:45:32,070 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:45:32,070 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:45:32,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:45:32,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:45:32,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:45:32,273 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:45:32,274 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:45:32,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/simple_4-2.yml/witness-2.1.yml [2024-09-25 11:45:32,309 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:45:32,309 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:45:32,310 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/simple_4-2.c [2024-09-25 11:45:33,489 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:45:33,633 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:45:33,633 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/simple_4-2.c [2024-09-25 11:45:33,638 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/35590fcc0/cba3c2287d4b4d6c87a60374cdcc758e/FLAG98d664141 [2024-09-25 11:45:34,058 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/35590fcc0/cba3c2287d4b4d6c87a60374cdcc758e [2024-09-25 11:45:34,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:45:34,060 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:45:34,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:45:34,064 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:45:34,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:45:34,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:45:32" (1/2) ... [2024-09-25 11:45:34,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b704211 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:45:34, skipping insertion in model container [2024-09-25 11:45:34,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:45:32" (1/2) ... [2024-09-25 11:45:34,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@34b72c8c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:45:34, skipping insertion in model container [2024-09-25 11:45:34,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:45:34" (2/2) ... [2024-09-25 11:45:34,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b704211 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:34, skipping insertion in model container [2024-09-25 11:45:34,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:45:34" (2/2) ... [2024-09-25 11:45:34,080 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:45:34,081 INFO L1541 ArrayList]: Function contract at [L5]: requires (1 <= cond), ensures (1 <= cond) [2024-09-25 11:45:34,093 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:45:34,199 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/simple_4-2.c[322,335] [2024-09-25 11:45:34,209 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:45:34,216 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-25 11:45:34,245 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/simple_4-2.c[322,335] [2024-09-25 11:45:34,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:45:34,266 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:45:34,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:34 WrapperNode [2024-09-25 11:45:34,267 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:45:34,268 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:45:34,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:45:34,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:45:34,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:34" (1/1) ... [2024-09-25 11:45:34,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:34" (1/1) ... [2024-09-25 11:45:34,283 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:34" (1/1) ... [2024-09-25 11:45:34,290 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 [2024-09-25 11:45:34,290 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:34" (1/1) ... [2024-09-25 11:45:34,291 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:34" (1/1) ... [2024-09-25 11:45:34,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:34" (1/1) ... [2024-09-25 11:45:34,298 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:34" (1/1) ... [2024-09-25 11:45:34,299 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:34" (1/1) ... [2024-09-25 11:45:34,300 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:34" (1/1) ... [2024-09-25 11:45:34,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:45:34,302 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:45:34,302 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:45:34,303 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:45:34,303 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:34" (1/1) ... [2024-09-25 11:45:34,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:45:34,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:45:34,327 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) [2024-09-25 11:45:34,329 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 [2024-09-25 11:45:34,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:45:34,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:45:34,363 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:45:34,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-25 11:45:34,364 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:45:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:45:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:45:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:45:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:45:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:45:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:45:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:45:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 11:45:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:45:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 11:45:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 11:45:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:45:34,413 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:45:34,414 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:45:34,468 WARN L782 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-25 11:45:34,476 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:45:34,494 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:45:34,494 INFO L317 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-25 11:45:34,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:45:34 BoogieIcfgContainer [2024-09-25 11:45:34,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:45:34,495 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:45:34,495 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:45:34,496 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:45:34,496 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:45:32" (1/4) ... [2024-09-25 11:45:34,496 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6fdd13dc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:45:34, skipping insertion in model container [2024-09-25 11:45:34,496 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:45:34" (2/4) ... [2024-09-25 11:45:34,496 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6fdd13dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:45:34, skipping insertion in model container [2024-09-25 11:45:34,497 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:34" (3/4) ... [2024-09-25 11:45:34,497 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6fdd13dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:45:34, skipping insertion in model container [2024-09-25 11:45:34,497 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:45:34" (4/4) ... [2024-09-25 11:45:34,498 INFO L79 RefereeObserver]: Analyzing ICFG simple_4-2.c [2024-09-25 11:45:34,500 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-25 11:45:34,501 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L15-2 to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-25 11:45:34,501 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-25 11:45:34,501 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-25 11:45:34,502 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to error location [2024-09-25 11:45:34,522 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 3 edges [2024-09-25 11:45:34,523 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:34,523 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:34,524 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:34,524 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:34,527 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:34,536 INFO L101 BaseMinimizeStates]: Removed 3 edges and 1 locations by large block encoding [2024-09-25 11:45:34,537 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:34,538 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:34,538 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:34,538 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:34,542 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:45:34,555 INFO L520 InvariantChecker]: The annotation(s) from loop head L15-2 to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-25 11:45:34,562 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 11:45:34,562 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:34,563 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:34,563 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:34,563 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:34,564 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:34,567 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 11:45:34,567 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:34,567 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:34,567 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:34,567 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:34,568 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:45:34,572 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 11:45:34,577 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-25 11:45:34,577 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:34,577 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:34,578 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:34,578 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:34,578 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:34,580 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-25 11:45:34,582 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:34,582 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:34,582 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:34,582 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:34,585 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:45:34,586 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-25 11:45:34,589 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-25 11:45:34,589 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6fdd13dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 25.09 11:45:34, skipping insertion in model container [2024-09-25 11:45:34,589 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-25 11:45:34,591 INFO L158 Benchmark]: Toolchain (without parser) took 529.95ms. Allocated memory is still 184.5MB. Free memory was 129.2MB in the beginning and 96.5MB in the end (delta: 32.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-09-25 11:45:34,591 INFO L158 Benchmark]: Witness Parser took 0.09ms. Allocated memory is still 184.5MB. Free memory is still 151.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:45:34,591 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 149.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:45:34,592 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.34ms. Allocated memory is still 184.5MB. Free memory was 129.2MB in the beginning and 116.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 11:45:34,592 INFO L158 Benchmark]: Boogie Preprocessor took 33.09ms. Allocated memory is still 184.5MB. Free memory was 116.6MB in the beginning and 114.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:45:34,593 INFO L158 Benchmark]: RCFGBuilder took 192.74ms. Allocated memory is still 184.5MB. Free memory was 114.5MB in the beginning and 104.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-25 11:45:34,593 INFO L158 Benchmark]: Referee took 94.40ms. Allocated memory is still 184.5MB. Free memory was 104.1MB in the beginning and 96.5MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-25 11:45:34,595 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 15 to check that procedure precondition always holds at line 15. 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. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.09ms. Allocated memory is still 184.5MB. Free memory is still 151.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 149.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.34ms. Allocated memory is still 184.5MB. Free memory was 129.2MB in the beginning and 116.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.09ms. Allocated memory is still 184.5MB. Free memory was 116.6MB in the beginning and 114.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 192.74ms. Allocated memory is still 184.5MB. Free memory was 114.5MB in the beginning and 104.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 94.40ms. Allocated memory is still 184.5MB. Free memory was 104.1MB in the beginning and 96.5MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-25 11:45:34,632 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