./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound1.c --full-output --witness-type correctness_witness --validate ../results/cpachecker-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound1.yml/output/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27b49876 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/nla-digbench-scaling/lcm2_unwindbound1.c ../results/cpachecker-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound1.yml/output/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-27b4987-m [2024-09-21 19:10:40,247 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:10:40,292 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 19:10:40,296 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:10:40,297 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:10:40,321 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:10:40,321 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:10:40,321 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:10:40,322 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:10:40,323 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:10:40,324 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:10:40,324 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:10:40,324 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:10:40,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:10:40,326 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:10:40,326 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:10:40,326 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:10:40,327 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:10:40,327 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 19:10:40,327 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:10:40,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:10:40,328 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:10:40,330 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:10:40,330 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:10:40,330 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:10:40,330 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:10:40,330 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:10:40,331 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:10:40,331 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:10:40,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:10:40,331 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:10:40,331 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:10:40,331 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:10:40,332 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:10:40,332 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:10:40,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:10:40,332 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:10:40,332 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 19:10:40,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 19:10:40,333 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:10:40,333 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:10:40,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:10:40,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:10:40,334 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:10:40,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:10:40,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:10:40,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:10:40,545 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:10:40,546 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:10:40,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound1.c [2024-09-21 19:10:41,737 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:10:41,879 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:10:41,880 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound1.c [2024-09-21 19:10:41,889 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/5bb3f475e/21c1add3eed448129c9fa337f24e0ca2/FLAG2a6d2baba [2024-09-21 19:10:41,905 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/5bb3f475e/21c1add3eed448129c9fa337f24e0ca2 [2024-09-21 19:10:41,908 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:10:41,909 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:10:41,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound1.yml/output/witness-2.1.yml [2024-09-21 19:10:41,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:10:41,955 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:10:41,956 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:10:41,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:10:41,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:10:41,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:10:41" (1/2) ... [2024-09-21 19:10:41,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@592907e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:41, skipping insertion in model container [2024-09-21 19:10:41,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:10:41" (1/2) ... [2024-09-21 19:10:41,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4e990fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:10:41, skipping insertion in model container [2024-09-21 19:10:41,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:10:41" (2/2) ... [2024-09-21 19:10:41,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@592907e6 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:41, skipping insertion in model container [2024-09-21 19:10:41,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:10:41" (2/2) ... [2024-09-21 19:10:41,969 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:10:41,970 INFO L1541 ArrayList]: Loop invariant at [L36-L49] 1 [2024-09-21 19:10:41,971 INFO L1541 ArrayList]: Function contract at [L20]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:10:41,971 INFO L1541 ArrayList]: Function contract at [L8]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:10:41,971 INFO L1541 ArrayList]: Function contract at [L5]: requires 1, ensures 1 [2024-09-21 19:10:41,971 INFO L1541 ArrayList]: Function contract at [L11]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:10:41,986 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:10:42,107 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/nla-digbench-scaling/lcm2_unwindbound1.c[537,550] [2024-09-21 19:10:42,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:10:42,127 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-21 19:10:42,183 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/nla-digbench-scaling/lcm2_unwindbound1.c[537,550] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-21 19:10:42,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:10:42,226 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:10:42,227 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:42 WrapperNode [2024-09-21 19:10:42,228 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:10:42,228 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:10:42,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:10:42,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:10:42,238 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:42" (1/1) ... [2024-09-21 19:10:42,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:42" (1/1) ... [2024-09-21 19:10:42,244 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:42" (1/1) ... [2024-09-21 19:10:42,256 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure reach_error is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-21 19:10:42,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:42" (1/1) ... [2024-09-21 19:10:42,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:42" (1/1) ... [2024-09-21 19:10:42,259 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:42" (1/1) ... [2024-09-21 19:10:42,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:42" (1/1) ... [2024-09-21 19:10:42,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:42" (1/1) ... [2024-09-21 19:10:42,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:42" (1/1) ... [2024-09-21 19:10:42,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:10:42,270 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:10:42,270 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:10:42,270 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:10:42,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:42" (1/1) ... [2024-09-21 19:10:42,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:10:42,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:10:42,295 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) [2024-09-21 19:10:42,297 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 [2024-09-21 19:10:42,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:10:42,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:10:42,326 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:10:42,326 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 19:10:42,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-21 19:10:42,327 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:10:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:10:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:10:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:10:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:10:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-21 19:10:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 19:10:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:10:42,327 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:10:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:10:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-21 19:10:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:10:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-21 19:10:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-21 19:10:42,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:10:42,376 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:10:42,378 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:10:42,381 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:10:42,397 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:10:42,421 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:10:42,490 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:10:42,507 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:10:42,532 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:10:42,533 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-21 19:10:42,533 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:10:42 BoogieIcfgContainer [2024-09-21 19:10:42,533 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:10:42,533 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:10:42,534 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:10:42,534 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:10:42,534 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:10:41" (1/4) ... [2024-09-21 19:10:42,535 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6658c574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:10:42, skipping insertion in model container [2024-09-21 19:10:42,538 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:10:41" (2/4) ... [2024-09-21 19:10:42,539 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6658c574 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:10:42, skipping insertion in model container [2024-09-21 19:10:42,539 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:10:42" (3/4) ... [2024-09-21 19:10:42,539 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6658c574 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:10:42, skipping insertion in model container [2024-09-21 19:10:42,539 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:10:42" (4/4) ... [2024-09-21 19:10:42,540 INFO L79 RefereeObserver]: Analyzing ICFG lcm2_unwindbound1.c [2024-09-21 19:10:42,544 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-21 19:10:42,544 INFO L373 InvariantChecker]: Will check inductivity from ENTRY assume_abort_if_notENTRY to ERROR_LOC assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 4 edges. [2024-09-21 19:10:42,544 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr5REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-21 19:10:42,545 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-21 19:10:42,545 INFO L373 InvariantChecker]: Will check inductivity from ENTRY reach_errorENTRY to ERROR_LOC reach_errorErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:10:42,545 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-21 19:10:42,545 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to LOOP_INVARIANT_ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-21 19:10:42,545 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-21 19:10:42,546 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:10:42,546 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr7ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-21 19:10:42,546 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr6REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-21 19:10:42,546 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:10:42,546 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-21 19:10:42,546 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-21 19:10:42,547 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-21 19:10:42,547 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 3 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from procedure entry to loop head, 9 loop-free subgraphs from procedure entry to error location [2024-09-21 19:10:42,577 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-21 19:10:42,578 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:42,578 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:42,579 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:42,585 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:42,587 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,598 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-21 19:10:42,599 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,599 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:42,599 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:42,599 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:42,602 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:42,614 INFO L520 InvariantChecker]: The annotation(s) from entry assume_abort_if_notENTRY to error location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:10:42,635 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-21 19:10:42,636 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:42,636 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:42,636 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:42,637 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:42,637 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,644 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-21 19:10:42,645 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,645 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:42,645 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:42,645 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:42,645 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:42,647 INFO L520 InvariantChecker]: The annotation(s) from loop head L42-2 to error location mainErr5REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:10:42,662 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:10:42,663 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:42,663 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:42,663 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:42,663 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:42,663 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,664 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:10:42,664 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,664 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:42,665 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:42,665 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:42,665 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:42,667 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:10:42,677 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:10:42,677 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:42,677 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:42,677 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:42,677 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:42,677 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,678 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:10:42,678 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,678 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:42,678 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:42,678 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:42,678 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:42,680 INFO L520 InvariantChecker]: The annotation(s) from entry reach_errorENTRY to error location reach_errorErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:10:42,688 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-21 19:10:42,688 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:42,688 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:42,689 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:42,689 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:42,689 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,691 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-21 19:10:42,691 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,691 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:42,691 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:42,691 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:42,691 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:42,692 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-21 19:10:42,705 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-21 19:10:42,705 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:42,705 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:42,705 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:42,706 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:42,706 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,717 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-21 19:10:42,721 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,721 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:42,721 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:42,721 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:42,722 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:42,723 INFO L520 InvariantChecker]: The annotation(s) from loop head L42-2 to loop head mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-21 19:10:42,734 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-21 19:10:42,737 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:42,737 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:42,737 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:42,737 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:42,738 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,738 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-21 19:10:42,738 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,738 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:42,739 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:42,739 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:42,739 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:42,743 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:10:42,751 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:10:42,751 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:42,751 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:42,751 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:42,752 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:42,752 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,753 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:10:42,753 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,754 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:42,754 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:42,754 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:42,754 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:42,755 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:10:42,761 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-21 19:10:42,761 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:42,761 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:42,761 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:42,761 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:42,761 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,768 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-21 19:10:42,768 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,768 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:42,768 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:42,768 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:42,769 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:42,772 INFO L520 InvariantChecker]: The annotation(s) from loop head L42-2 to error location mainErr7ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:10:42,780 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-21 19:10:42,781 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:42,782 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:42,782 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:42,782 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:42,782 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,785 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-21 19:10:42,785 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,785 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:42,785 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:42,785 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:42,786 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:42,788 INFO L520 InvariantChecker]: The annotation(s) from loop head L42-2 to error location mainErr6REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:10:42,793 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:10:42,794 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:42,794 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:42,794 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:42,794 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:42,794 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,795 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:10:42,795 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,796 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:42,796 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:42,796 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:42,796 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:42,797 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:10:42,802 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-21 19:10:42,804 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:42,804 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:42,804 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:42,805 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:42,805 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,806 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 19:10:42,807 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,807 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:42,807 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:42,807 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:42,807 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:42,808 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:10:42,814 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:10:42,814 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:42,814 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:42,814 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:42,815 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:42,815 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,817 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:10:42,817 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,817 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:42,818 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:42,818 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:42,818 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:42,830 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-21 19:10:42,830 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:10:42,830 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:10:42,830 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:10:42,831 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:10:42,831 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,831 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-21 19:10:42,832 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:10:42,832 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:10:42,832 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:10:42,832 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:10:42,832 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:10:42,833 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:10:42,838 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-21 19:10:42,839 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6658c574 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 21.09 07:10:42, skipping insertion in model container [2024-09-21 19:10:42,839 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-21 19:10:42,841 INFO L158 Benchmark]: Toolchain (without parser) took 885.24ms. Allocated memory is still 165.7MB. Free memory was 94.9MB in the beginning and 83.8MB in the end (delta: 11.1MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2024-09-21 19:10:42,841 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 165.7MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:10:42,842 INFO L158 Benchmark]: Witness Parser took 0.44ms. Allocated memory is still 165.7MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:10:42,843 INFO L158 Benchmark]: CACSL2BoogieTranslator took 271.49ms. Allocated memory is still 165.7MB. Free memory was 94.5MB in the beginning and 136.1MB in the end (delta: -41.6MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2024-09-21 19:10:42,844 INFO L158 Benchmark]: Boogie Preprocessor took 40.83ms. Allocated memory is still 165.7MB. Free memory was 136.1MB in the beginning and 134.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 19:10:42,845 INFO L158 Benchmark]: RCFGBuilder took 263.35ms. Allocated memory is still 165.7MB. Free memory was 134.1MB in the beginning and 120.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-21 19:10:42,845 INFO L158 Benchmark]: Referee took 306.05ms. Allocated memory is still 165.7MB. Free memory was 120.7MB in the beginning and 83.8MB in the end (delta: 37.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-09-21 19:10:42,847 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is not a valid proof of correctness. Annotation is not a valid proof of correctness. Annotation is not valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 13. One counterexample starts in \old(cond)=0 and ends in \old(cond)=0, cond=0. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 25. Annotation is valid for all loop-free paths from loop head at line 36 to exit of procedure main. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 28. Annotation is valid for all loop-free paths from entry of procedure ULTIMATE.start to check that procedure precondition always holds at line -1. Annotation is valid for all loop-free paths from loop head at line 36 to loop head at line 36. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 26. Annotation is valid for all loop-free paths from loop head at line 36 to check that procedure precondition always holds at line 36. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 25. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 36. Annotation is valid for all loop-free paths from entry of procedure assume_abort_if_not to exit of procedure assume_abort_if_not. Annotation is valid for all loop-free paths from loop head at line 36 to check that procedure precondition always holds at line 37. Annotation is valid for all loop-free paths from entry of procedure reach_error to exit of procedure reach_error. 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: * CDTParser took 0.15ms. Allocated memory is still 165.7MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.44ms. Allocated memory is still 165.7MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 271.49ms. Allocated memory is still 165.7MB. Free memory was 94.5MB in the beginning and 136.1MB in the end (delta: -41.6MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.83ms. Allocated memory is still 165.7MB. Free memory was 136.1MB in the beginning and 134.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 263.35ms. Allocated memory is still 165.7MB. Free memory was 134.1MB in the beginning and 120.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 306.05ms. Allocated memory is still 165.7MB. Free memory was 120.7MB in the beginning and 83.8MB in the end (delta: 37.0MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-21 19:10:42,871 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE