./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound50.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound50.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ca4ee3dd Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound50.c ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound50.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-ca4ee3d-m [2024-09-20 20:11:27,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 20:11:27,751 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 20:11:27,757 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 20:11:27,757 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 20:11:27,777 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 20:11:27,777 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 20:11:27,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 20:11:27,778 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 20:11:27,778 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 20:11:27,779 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 20:11:27,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 20:11:27,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 20:11:27,785 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 20:11:27,785 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 20:11:27,785 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 20:11:27,785 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 20:11:27,786 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 20:11:27,786 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 20:11:27,786 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 20:11:27,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 20:11:27,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 20:11:27,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 20:11:27,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 20:11:27,789 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 20:11:27,789 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 20:11:27,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 20:11:27,789 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 20:11:27,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 20:11:27,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 20:11:27,790 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 20:11:27,790 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 20:11:27,790 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 20:11:27,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:11:27,791 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 20:11:27,791 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 20:11:27,791 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 20:11:27,791 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 20:11:27,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 20:11:27,792 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 20:11:27,792 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 20:11:27,794 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 20:11:27,794 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 20:11:27,794 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 20:11:28,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 20:11:28,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 20:11:28,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 20:11:28,074 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 20:11:28,075 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 20:11:28,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound50.yml/witness-2.1.yml [2024-09-20 20:11:28,132 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 20:11:28,133 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 20:11:28,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound50.c [2024-09-20 20:11:29,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 20:11:29,769 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 20:11:29,769 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound50.c [2024-09-20 20:11:29,776 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/1469f8fdf/3dd8a99a3a604bd8a87e29b7028082c9/FLAG0a3a06ed4 [2024-09-20 20:11:30,155 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/1469f8fdf/3dd8a99a3a604bd8a87e29b7028082c9 [2024-09-20 20:11:30,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 20:11:30,157 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 20:11:30,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 20:11:30,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 20:11:30,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 20:11:30,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:11:28" (1/2) ... [2024-09-20 20:11:30,170 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34e9132d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:11:30, skipping insertion in model container [2024-09-20 20:11:30,170 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:11:28" (1/2) ... [2024-09-20 20:11:30,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@280d0af4 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:11:30, skipping insertion in model container [2024-09-20 20:11:30,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:11:30" (2/2) ... [2024-09-20 20:11:30,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34e9132d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:30, skipping insertion in model container [2024-09-20 20:11:30,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:11:30" (2/2) ... [2024-09-20 20:11:30,181 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 20:11:30,182 INFO L1541 ArrayList]: Loop invariant at [L36-L49] ((((((unsigned long long) b * a) % 2147483648) * 2) == (((__int128) ((unsigned long long) y * v) + ((unsigned long long) x * u)) % 4294967296)) && (\old(counter) == 0)) [2024-09-20 20:11:30,182 INFO L1541 ArrayList]: Function contract at [L20]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-20 20:11:30,182 INFO L1541 ArrayList]: Function contract at [L8]: requires (counter == 0), ensures (counter == 0) [2024-09-20 20:11:30,182 INFO L1541 ArrayList]: Function contract at [L11]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 20:11:30,199 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 20:11:30,342 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_unwindbound50.c[537,550] [2024-09-20 20:11:30,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:11:30,373 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-20 20:11:30,410 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_unwindbound50.c[537,550] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-20 20:11:30,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:11:30,448 INFO L204 MainTranslator]: Completed translation [2024-09-20 20:11:30,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:30 WrapperNode [2024-09-20 20:11:30,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 20:11:30,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 20:11:30,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 20:11:30,451 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 20:11:30,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:30" (1/1) ... [2024-09-20 20:11:30,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:30" (1/1) ... [2024-09-20 20:11:30,471 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:30" (1/1) ... [2024-09-20 20:11:30,481 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure assume_abort_if_not is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-20 20:11:30,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:30" (1/1) ... [2024-09-20 20:11:30,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:30" (1/1) ... [2024-09-20 20:11:30,486 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:30" (1/1) ... [2024-09-20 20:11:30,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:30" (1/1) ... [2024-09-20 20:11:30,492 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:30" (1/1) ... [2024-09-20 20:11:30,493 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:30" (1/1) ... [2024-09-20 20:11:30,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 20:11:30,500 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 20:11:30,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 20:11:30,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 20:11:30,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:30" (1/1) ... [2024-09-20 20:11:30,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:11:30,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 20:11:30,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-20 20:11:30,539 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-20 20:11:30,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 20:11:30,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 20:11:30,598 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 20:11:30,600 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 20:11:30,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 20:11:30,600 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 20:11:30,600 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 20:11:30,600 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 20:11:30,601 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 20:11:30,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 20:11:30,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 20:11:30,601 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 20:11:30,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 20:11:30,601 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 20:11:30,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 20:11:30,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 20:11:30,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 20:11:30,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 20:11:30,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 20:11:30,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 20:11:30,680 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 20:11:30,684 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 20:11:30,707 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:11:30,742 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:11:30,978 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:11:31,004 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 20:11:31,035 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 20:11:31,037 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 20:11:31,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:11:31 BoogieIcfgContainer [2024-09-20 20:11:31,038 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 20:11:31,039 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 20:11:31,040 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 20:11:31,040 INFO L274 PluginConnector]: Referee initialized [2024-09-20 20:11:31,041 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:11:28" (1/4) ... [2024-09-20 20:11:31,041 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@532a6ecd and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:11:31, skipping insertion in model container [2024-09-20 20:11:31,043 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 08:11:30" (2/4) ... [2024-09-20 20:11:31,043 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@532a6ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:11:31, skipping insertion in model container [2024-09-20 20:11:31,043 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:30" (3/4) ... [2024-09-20 20:11:31,043 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@532a6ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:11:31, skipping insertion in model container [2024-09-20 20:11:31,043 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:11:31" (4/4) ... [2024-09-20 20:11:31,044 INFO L79 RefereeObserver]: Analyzing ICFG lcm2_unwindbound50.c [2024-09-20 20:11:31,048 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 20:11:31,049 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. [2024-09-20 20:11:31,049 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 20:11:31,049 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr5REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 20:11:31,049 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-20 20:11:31,050 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 20:11:31,050 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr7ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-20 20:11:31,050 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr6REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-20 20:11:31,050 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 20:11:31,050 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 20:11:31,050 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 20:11:31,050 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 20:11:31,050 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-20 20:11:31,051 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to LOOP_INVARIANT_ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-20 20:11:31,051 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from procedure entry to loop head, 8 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to loop head [2024-09-20 20:11:31,112 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 20:11:31,113 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:31,113 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:31,114 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:31,115 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:31,116 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:31,124 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 20:11:31,126 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:31,126 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:31,126 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:31,126 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:31,130 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:31,150 INFO L520 InvariantChecker]: The annotation(s) from entry assume_abort_if_notENTRY to error location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:11:31,171 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 20:11:31,171 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:31,171 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:31,171 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:31,172 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:31,172 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:31,174 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 20:11:31,174 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:31,174 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:31,174 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:31,174 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:31,174 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:31,176 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:31,198 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 20:11:31,198 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:31,198 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:31,198 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:31,198 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:31,199 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:31,219 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 20:11:31,219 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:31,220 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:31,220 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:31,220 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:31,220 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:35,226 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 20:11:35,242 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 20:11:35,243 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:35,243 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:35,243 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:35,244 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:35,244 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:35,246 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 20:11:35,247 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:35,247 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:35,248 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:35,248 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:35,248 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:35,250 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:35,266 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:11:35,266 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:35,267 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:35,267 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:35,267 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:35,267 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:35,268 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:11:35,268 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:35,269 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:35,269 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:35,269 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:35,269 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:35,270 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:35,282 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-20 20:11:35,282 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:35,283 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:35,283 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:35,283 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:35,283 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:35,313 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-20 20:11:35,313 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:35,313 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:35,314 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:35,314 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:35,314 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:35,316 INFO L520 InvariantChecker]: The annotation(s) from loop head L42-2 to error location mainErr7ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:11:35,332 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-20 20:11:35,332 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:35,332 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:35,332 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:35,332 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:35,333 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:35,356 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-20 20:11:35,357 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:35,357 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:35,357 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:35,358 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:35,365 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:39,377 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 20:11:39,396 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:11:39,397 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:39,397 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:39,397 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:39,397 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:39,397 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:39,399 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:11:39,399 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:39,399 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:39,400 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:39,400 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:39,400 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:39,402 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:39,413 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 20:11:39,414 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:39,414 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:39,414 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:39,414 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:39,414 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:39,417 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 20:11:39,417 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:39,417 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:39,417 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:39,417 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:39,418 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:39,420 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:11:39,429 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:11:39,430 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:39,430 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:39,430 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:39,430 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:39,430 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:39,432 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:11:39,432 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:39,432 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:39,432 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:39,432 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:39,432 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:39,434 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 20:11:39,444 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 20:11:39,444 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:39,444 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:39,444 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:39,444 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:39,445 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:39,446 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 20:11:39,458 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:39,458 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:39,459 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:39,459 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:39,459 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:39,466 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:39,483 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-20 20:11:39,483 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:39,483 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:39,484 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:39,484 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:39,484 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:39,499 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-20 20:11:39,499 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:39,499 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:39,499 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:39,499 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:39,499 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:39,505 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 20:11:39,526 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-20 20:11:39,527 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:39,527 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:39,527 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:39,527 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:39,527 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:39,587 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-20 20:11:39,587 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:39,587 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:39,588 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:39,588 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:39,596 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:43,601 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 20:11:43,606 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-20 20:11:43,607 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@532a6ecd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 08:11:43, skipping insertion in model container [2024-09-20 20:11:43,607 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 20:11:43,609 INFO L158 Benchmark]: Toolchain (without parser) took 13451.64ms. Allocated memory is still 136.3MB. Free memory was 90.1MB in the beginning and 89.7MB in the end (delta: 413.1kB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-09-20 20:11:43,609 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 100.7MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:11:43,610 INFO L158 Benchmark]: CDTParser took 0.98ms. Allocated memory is still 100.7MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:11:43,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.77ms. Allocated memory is still 136.3MB. Free memory was 90.1MB in the beginning and 76.3MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 20:11:43,611 INFO L158 Benchmark]: Boogie Preprocessor took 49.17ms. Allocated memory is still 136.3MB. Free memory was 76.3MB in the beginning and 74.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 20:11:43,611 INFO L158 Benchmark]: RCFGBuilder took 538.02ms. Allocated memory is still 136.3MB. Free memory was 74.2MB in the beginning and 94.0MB in the end (delta: -19.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-20 20:11:43,612 INFO L158 Benchmark]: Referee took 12567.88ms. Allocated memory is still 136.3MB. Free memory was 94.0MB in the beginning and 89.7MB in the end (delta: 4.2MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2024-09-20 20:11:43,614 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Insufficient resources for checking whether annotation is a valid proof of correctness. Insufficient resources for checking whether annotation is a valid proof of correctness. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 36 to check that procedure precondition always holds at line 36. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 36 to loop head at line 36. Insufficient resources for checking whether 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 main to check that procedure precondition always holds at line 25. 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 entry of procedure main to check that procedure precondition always holds at line 26. 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 exit of procedure main. 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 13. 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 __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 28. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.19ms. Allocated memory is still 100.7MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.98ms. Allocated memory is still 100.7MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.77ms. Allocated memory is still 136.3MB. Free memory was 90.1MB in the beginning and 76.3MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.17ms. Allocated memory is still 136.3MB. Free memory was 76.3MB in the beginning and 74.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 538.02ms. Allocated memory is still 136.3MB. Free memory was 74.2MB in the beginning and 94.0MB in the end (delta: -19.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 12567.88ms. Allocated memory is still 136.3MB. Free memory was 94.0MB in the beginning and 89.7MB in the end (delta: 4.2MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 20:11:43,645 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/nla-digbench-scaling/lcm2_unwindbound50.c ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound50.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-ca4ee3d-m [2024-09-20 20:11:45,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 20:11:45,914 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 20:11:45,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 20:11:45,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 20:11:45,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 20:11:45,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 20:11:45,960 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 20:11:45,961 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 20:11:45,962 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 20:11:45,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 20:11:45,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 20:11:45,965 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 20:11:45,966 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 20:11:45,966 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 20:11:45,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 20:11:45,967 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 20:11:45,967 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 20:11:45,967 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 20:11:45,967 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 20:11:45,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 20:11:45,972 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 20:11:45,972 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 20:11:45,973 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 20:11:45,973 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 20:11:45,973 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 20:11:45,973 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 20:11:45,974 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 20:11:45,974 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 20:11:45,974 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 20:11:45,974 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 20:11:45,974 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 20:11:45,975 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 20:11:45,975 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 20:11:45,976 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 20:11:45,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:11:45,977 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 20:11:45,977 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 20:11:45,978 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 20:11:45,978 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 20:11:45,979 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 20:11:45,979 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 20:11:45,979 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 20:11:45,979 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 20:11:45,980 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 20:11:45,980 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 20:11:45,980 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 20:11:46,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 20:11:46,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 20:11:46,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 20:11:46,329 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 20:11:46,329 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 20:11:46,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound50.c [2024-09-20 20:11:47,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 20:11:48,120 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 20:11:48,121 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound50.c [2024-09-20 20:11:48,128 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/45dd20c13/8857510dc554496fa1e9a0c015cb4a39/FLAG0c4992b08 [2024-09-20 20:11:48,462 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/45dd20c13/8857510dc554496fa1e9a0c015cb4a39 [2024-09-20 20:11:48,464 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 20:11:48,465 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 20:11:48,465 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound50.yml/witness-2.1.yml [2024-09-20 20:11:48,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 20:11:48,519 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 20:11:48,520 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 20:11:48,520 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 20:11:48,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 20:11:48,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:11:48" (1/2) ... [2024-09-20 20:11:48,531 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29db4ad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:48, skipping insertion in model container [2024-09-20 20:11:48,531 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:11:48" (1/2) ... [2024-09-20 20:11:48,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@930a786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:11:48, skipping insertion in model container [2024-09-20 20:11:48,533 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:11:48" (2/2) ... [2024-09-20 20:11:48,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29db4ad4 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:11:48, skipping insertion in model container [2024-09-20 20:11:48,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:11:48" (2/2) ... [2024-09-20 20:11:48,542 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 20:11:48,542 INFO L1541 ArrayList]: Loop invariant at [L36-L49] ((((((unsigned long long) b * a) % 2147483648) * 2) == (((__int128) ((unsigned long long) y * v) + ((unsigned long long) x * u)) % 4294967296)) && (\old(counter) == 0)) [2024-09-20 20:11:48,542 INFO L1541 ArrayList]: Function contract at [L20]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-20 20:11:48,543 INFO L1541 ArrayList]: Function contract at [L8]: requires (counter == 0), ensures (counter == 0) [2024-09-20 20:11:48,543 INFO L1541 ArrayList]: Function contract at [L11]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 20:11:48,560 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 20:11:48,727 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_unwindbound50.c[537,550] [2024-09-20 20:11:48,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:11:48,768 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-20 20:11:48,815 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_unwindbound50.c[537,550] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-20 20:11:48,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:11:48,853 INFO L204 MainTranslator]: Completed translation [2024-09-20 20:11:48,854 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:11:48 WrapperNode [2024-09-20 20:11:48,854 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 20:11:48,855 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 20:11:48,856 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 20:11:48,856 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 20:11:48,869 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 20.09 08:11:48" (1/1) ... [2024-09-20 20:11:48,870 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 20.09 08:11:48" (1/1) ... [2024-09-20 20:11:48,879 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 20.09 08:11:48" (1/1) ... [2024-09-20 20:11:48,892 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure assume_abort_if_not is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-20 20:11:48,896 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 20.09 08:11:48" (1/1) ... [2024-09-20 20:11:48,896 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 20.09 08:11:48" (1/1) ... [2024-09-20 20:11:48,909 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 20.09 08:11:48" (1/1) ... [2024-09-20 20:11:48,912 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 20.09 08:11:48" (1/1) ... [2024-09-20 20:11:48,914 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 20.09 08:11:48" (1/1) ... [2024-09-20 20:11:48,919 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 20.09 08:11:48" (1/1) ... [2024-09-20 20:11:48,921 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 20:11:48,922 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 20:11:48,922 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 20:11:48,922 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 20:11:48,924 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 20.09 08:11:48" (1/1) ... [2024-09-20 20:11:48,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:11:48,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 20:11:48,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-20 20:11:48,972 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-20 20:11:49,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 20:11:49,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 20:11:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 20:11:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 20:11:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 20:11:49,023 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 20:11:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 20:11:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 20:11:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 20:11:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 20:11:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 20:11:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 20:11:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 20:11:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 20:11:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 20:11:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-20 20:11:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 20:11:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-20 20:11:49,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-20 20:11:49,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 20:11:49,107 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 20:11:49,111 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 20:11:49,143 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:11:49,180 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:11:49,701 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 20:11:49,729 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 20:11:49,769 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 20:11:49,769 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 20:11:49,773 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:11:49 BoogieIcfgContainer [2024-09-20 20:11:49,774 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 20:11:49,774 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 20:11:49,774 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 20:11:49,775 INFO L274 PluginConnector]: Referee initialized [2024-09-20 20:11:49,775 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 08:11:48" (1/4) ... [2024-09-20 20:11:49,776 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3393ddbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:11:49, skipping insertion in model container [2024-09-20 20:11:49,776 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:11:48" (2/4) ... [2024-09-20 20:11:49,776 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3393ddbc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:11:49, skipping insertion in model container [2024-09-20 20:11:49,777 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 20.09 08:11:48" (3/4) ... [2024-09-20 20:11:49,777 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3393ddbc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:11:49, skipping insertion in model container [2024-09-20 20:11:49,777 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:11:49" (4/4) ... [2024-09-20 20:11:49,778 INFO L79 RefereeObserver]: Analyzing ICFG lcm2_unwindbound50.c [2024-09-20 20:11:49,783 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 20:11:49,784 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. [2024-09-20 20:11:49,784 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 20:11:49,784 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr5REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 20:11:49,785 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-20 20:11:49,785 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 20:11:49,785 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr7ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-20 20:11:49,785 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr6REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-20 20:11:49,785 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 20:11:49,786 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 20:11:49,786 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 20:11:49,786 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 20:11:49,786 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-20 20:11:49,787 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to LOOP_INVARIANT_ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-20 20:11:49,788 INFO L131 InvariantChecker]: Will check 8 loop-free subgraphs from procedure entry to error location, 3 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from loop head to loop head [2024-09-20 20:11:49,838 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 20:11:49,839 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:49,840 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:49,840 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:49,842 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:49,844 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:49,862 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 20:11:49,863 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:49,863 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:49,864 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:49,864 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:49,868 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:49,902 INFO L520 InvariantChecker]: The annotation(s) from entry assume_abort_if_notENTRY to error location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:11:49,939 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 20:11:49,940 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:49,941 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:49,941 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:49,941 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:49,941 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:49,944 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 20:11:49,945 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:49,946 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:49,946 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:49,946 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:49,947 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:49,949 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:49,981 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 20:11:49,982 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:49,982 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:49,982 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:49,982 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:49,983 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:49,996 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 20:11:50,000 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:50,000 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:50,000 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:50,000 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:50,000 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:54,048 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 20:11:54,084 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 20:11:54,084 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:54,084 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:54,084 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:54,084 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:54,084 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,087 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 20:11:54,087 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,088 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:54,088 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:54,088 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:54,088 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:54,090 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:54,111 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:11:54,111 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:54,112 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:54,112 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:54,112 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:54,112 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,115 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:11:54,115 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,116 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:54,116 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:54,116 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:54,117 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:54,118 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:54,142 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-20 20:11:54,143 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:54,143 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:54,143 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:54,143 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:54,143 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,194 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-20 20:11:54,195 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,195 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:54,195 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:54,195 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:54,196 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:54,198 INFO L520 InvariantChecker]: The annotation(s) from loop head L42-2 to error location mainErr7ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:11:54,216 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-20 20:11:54,216 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:54,216 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:54,217 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:54,217 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:54,217 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,237 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-20 20:11:54,238 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,238 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:54,238 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:54,239 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:54,244 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:54,461 INFO L520 InvariantChecker]: The annotation(s) from loop head L42-2 to error location mainErr6REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:54,481 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:11:54,481 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:54,481 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:54,482 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:54,482 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:54,482 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,484 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:11:54,484 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,484 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:54,485 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:54,485 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:54,485 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:54,487 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:54,500 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 20:11:54,500 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:54,500 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:54,500 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:54,501 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:54,501 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,503 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 20:11:54,503 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,504 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:54,504 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:54,504 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:54,505 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:54,506 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 20:11:54,516 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 20:11:54,516 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:54,516 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:54,516 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:54,517 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:54,517 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,519 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 20:11:54,519 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,519 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:54,519 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:54,519 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:54,520 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:54,521 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 20:11:54,531 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 20:11:54,531 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:54,531 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:54,531 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:54,532 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:54,532 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,534 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 20:11:54,534 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,535 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:54,535 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:54,535 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:54,535 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:54,537 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 20:11:54,547 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-20 20:11:54,547 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:54,548 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:54,548 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:54,548 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:54,548 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,554 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-20 20:11:54,554 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,554 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:54,554 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:54,554 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:54,555 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:54,578 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 20:11:54,592 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-20 20:11:54,592 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:11:54,592 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:11:54,592 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:11:54,592 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:11:54,593 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,613 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-20 20:11:54,613 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:11:54,613 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:11:54,614 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:11:54,614 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:11:54,618 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 20:11:58,722 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 20:11:58,751 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-20 20:11:58,751 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3393ddbc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 08:11:58, skipping insertion in model container [2024-09-20 20:11:58,751 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 20:11:58,753 INFO L158 Benchmark]: Toolchain (without parser) took 10234.28ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 45.0MB in the beginning and 56.4MB in the end (delta: -11.4MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2024-09-20 20:11:58,753 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 29.3MB in the beginning and 29.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:11:58,754 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 71.3MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:11:58,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.34ms. Allocated memory is still 71.3MB. Free memory was 44.8MB in the beginning and 30.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 20:11:58,754 INFO L158 Benchmark]: Boogie Preprocessor took 65.63ms. Allocated memory is still 71.3MB. Free memory was 30.3MB in the beginning and 28.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 20:11:58,755 INFO L158 Benchmark]: RCFGBuilder took 851.99ms. Allocated memory is still 71.3MB. Free memory was 28.0MB in the beginning and 35.1MB in the end (delta: -7.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2024-09-20 20:11:58,755 INFO L158 Benchmark]: Referee took 8976.89ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 35.1MB in the beginning and 56.4MB in the end (delta: -21.3MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2024-09-20 20:11:58,758 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Insufficient resources for checking whether annotation is a valid proof of correctness. Insufficient resources for checking whether annotation is a valid proof of correctness. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 36 to loop head at line 36. Insufficient resources for checking whether 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 ULTIMATE.start to check that procedure precondition always holds at line -1. 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 __VERIFIER_assert to check that a call to reach_error is unreachable at line 13. 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 entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. 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 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 loop head at line 36. 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 assume_abort_if_not to exit of procedure assume_abort_if_not. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory was 29.3MB in the beginning and 29.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.10ms. Allocated memory is still 71.3MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.34ms. Allocated memory is still 71.3MB. Free memory was 44.8MB in the beginning and 30.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.63ms. Allocated memory is still 71.3MB. Free memory was 30.3MB in the beginning and 28.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 851.99ms. Allocated memory is still 71.3MB. Free memory was 28.0MB in the beginning and 35.1MB in the end (delta: -7.1MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Referee took 8976.89ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 35.1MB in the beginning and 56.4MB in the end (delta: -21.3MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 20:11:58,807 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN