./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound2.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound2.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f1d7dc9d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound2.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:28:06,817 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:28:06,852 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:28:06,855 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:28:06,855 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:28:06,889 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:28:06,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:28:06,889 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:28:06,890 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:28:06,890 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:28:06,890 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:28:06,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:28:06,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:28:06,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:28:06,904 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:28:06,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:28:06,905 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:28:06,905 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:28:06,905 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:28:06,905 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:28:06,905 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:28:06,908 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:28:06,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:28:06,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:28:06,909 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:28:06,909 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:28:06,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:28:06,909 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:28:06,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:28:06,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:28:06,910 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:28:06,910 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:28:06,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:28:06,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:28:06,910 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:28:06,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:28:06,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:28:06,911 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:28:06,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:28:06,911 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:28:06,911 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:28:06,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:28:06,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:28:06,914 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:28:07,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:28:07,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:28:07,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:28:07,143 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:28:07,144 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:28:07,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound2.yml/witness-2.1.yml [2024-09-20 13:28:07,192 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:28:07,193 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:28:07,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound2.c [2024-09-20 13:28:08,697 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:28:08,831 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:28:08,831 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound2.c [2024-09-20 13:28:08,839 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/f89629882/66b8cf75557b40abb3f4e3226e04cca1/FLAG730dcd6d0 [2024-09-20 13:28:08,850 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/f89629882/66b8cf75557b40abb3f4e3226e04cca1 [2024-09-20 13:28:08,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:28:08,852 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:28:08,853 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:28:08,853 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:28:08,862 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:28:08,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:28:07" (1/2) ... [2024-09-20 13:28:08,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe10fc3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:28:08, skipping insertion in model container [2024-09-20 13:28:08,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:28:07" (1/2) ... [2024-09-20 13:28:08,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4b9aa10d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:28:08, skipping insertion in model container [2024-09-20 13:28:08,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:08" (2/2) ... [2024-09-20 13:28:08,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe10fc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:08, skipping insertion in model container [2024-09-20 13:28:08,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:08" (2/2) ... [2024-09-20 13:28:08,880 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:28:08,881 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 13:28:08,884 INFO L1541 ArrayList]: Function contract at [L20]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-20 13:28:08,884 INFO L1541 ArrayList]: Function contract at [L11]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 13:28:08,884 INFO L1541 ArrayList]: Function contract at [L8]: requires (counter == 0), ensures (counter == 0) [2024-09-20 13:28:08,897 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:28:08,999 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_unwindbound2.c[537,550] [2024-09-20 13:28:09,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:28:09,019 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-20 13:28:09,046 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_unwindbound2.c[537,550] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-20 13:28:09,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:28:09,067 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:28:09,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:09 WrapperNode [2024-09-20 13:28:09,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:28:09,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:28:09,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:28:09,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:28:09,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:09" (1/1) ... [2024-09-20 13:28:09,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:09" (1/1) ... [2024-09-20 13:28:09,091 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:09" (1/1) ... [2024-09-20 13:28:09,098 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 13:28:09,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:09" (1/1) ... [2024-09-20 13:28:09,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:09" (1/1) ... [2024-09-20 13:28:09,101 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:09" (1/1) ... [2024-09-20 13:28:09,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:09" (1/1) ... [2024-09-20 13:28:09,104 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:09" (1/1) ... [2024-09-20 13:28:09,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:09" (1/1) ... [2024-09-20 13:28:09,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:28:09,107 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:28:09,107 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:28:09,107 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:28:09,108 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:09" (1/1) ... [2024-09-20 13:28:09,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:28:09,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:28:09,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-20 13:28:09,131 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-20 13:28:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:28:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:28:09,165 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:28:09,166 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:28:09,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:28:09,166 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:28:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:28:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:28:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:28:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:28:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 13:28:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:28:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:28:09,166 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:28:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:28:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 13:28:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:28:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 13:28:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 13:28:09,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:28:09,230 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:28:09,232 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:28:09,248 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:28:09,267 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:28:09,416 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:28:09,426 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:28:09,445 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:28:09,446 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 13:28:09,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:09 BoogieIcfgContainer [2024-09-20 13:28:09,446 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:28:09,447 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:28:09,447 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:28:09,447 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:28:09,448 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:28:07" (1/4) ... [2024-09-20 13:28:09,448 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@56cc45ce and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:28:09, skipping insertion in model container [2024-09-20 13:28:09,448 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:28:08" (2/4) ... [2024-09-20 13:28:09,448 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@56cc45ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:28:09, skipping insertion in model container [2024-09-20 13:28:09,449 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:09" (3/4) ... [2024-09-20 13:28:09,449 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@56cc45ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:28:09, skipping insertion in model container [2024-09-20 13:28:09,449 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:09" (4/4) ... [2024-09-20 13:28:09,450 INFO L79 RefereeObserver]: Analyzing ICFG lcm2_unwindbound2.c [2024-09-20 13:28:09,453 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 13:28:09,453 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 13:28:09,453 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:28:09,454 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 13:28:09,454 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-20 13:28:09,454 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 13:28:09,454 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 13:28:09,454 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 13:28:09,454 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 13:28:09,454 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:28:09,455 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 13:28:09,455 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:28:09,455 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 13:28:09,455 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 13:28:09,455 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 3 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from procedure entry to loop head, 8 loop-free subgraphs from procedure entry to error location [2024-09-20 13:28:09,501 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 13:28:09,501 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:09,502 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:09,502 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:09,504 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:09,505 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:09,512 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 13:28:09,513 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:09,513 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:09,513 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:09,513 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:09,515 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:09,536 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 13:28:09,566 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 13:28:09,566 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:09,566 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:09,566 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:09,566 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:09,567 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:09,568 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 13:28:09,568 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:09,568 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:09,569 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:09,569 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:09,569 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:09,570 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:09,586 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 13:28:09,586 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:09,587 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:09,587 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:09,587 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:09,588 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:09,603 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 13:28:09,603 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:09,604 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:09,604 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:09,604 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:09,604 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:13,611 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:28:13,639 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 13:28:13,645 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:13,645 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:13,645 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:13,645 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:13,646 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:13,647 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 13:28:13,652 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:13,652 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:13,652 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:13,652 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:13,653 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:13,657 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:13,669 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:28:13,669 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:13,669 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:13,670 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:13,670 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:13,670 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:13,671 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:28:13,671 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:13,671 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:13,671 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:13,671 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:13,671 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:13,676 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:13,685 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-20 13:28:13,686 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:13,686 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:13,686 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:13,686 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:13,686 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:13,710 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-20 13:28:13,710 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:13,710 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:13,710 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:13,710 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:13,711 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:13,712 INFO L520 InvariantChecker]: The annotation(s) from loop head L42-2 to error location mainErr7ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:28:13,721 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-20 13:28:13,721 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:13,721 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:13,721 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:13,721 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:13,722 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:13,735 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-20 13:28:13,735 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:13,735 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:13,735 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:13,735 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:13,739 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:17,742 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:28:17,754 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:28:17,754 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:17,754 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:17,755 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:17,755 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:17,755 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:17,755 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:28:17,756 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:17,756 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:17,756 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:17,756 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:17,756 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:17,757 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:17,765 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:28:17,765 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:17,765 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:17,765 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:17,765 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:17,765 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:17,767 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:28:17,767 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:17,767 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:17,768 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:17,768 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:17,768 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:17,769 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:28:17,776 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:28:17,777 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:17,777 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:17,777 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:17,777 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:17,777 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:17,778 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:28:17,778 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:17,778 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:17,778 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:17,778 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:17,779 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:17,780 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:28:17,787 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 13:28:17,787 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:17,787 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:17,787 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:17,787 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:17,787 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:17,788 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 13:28:17,789 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:17,789 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:17,789 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:17,789 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:17,789 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:17,790 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:17,798 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-20 13:28:17,798 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:17,798 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:17,798 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:17,799 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:17,799 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:17,802 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-20 13:28:17,802 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:17,802 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:17,802 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:17,803 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:17,803 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:17,806 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:28:17,815 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-20 13:28:17,815 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:17,816 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:17,816 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:17,816 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:17,816 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:17,844 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-20 13:28:17,845 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:17,845 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:17,845 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:17,845 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:17,851 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:21,875 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:28:21,881 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-20 13:28:21,882 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@56cc45ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:28:21, skipping insertion in model container [2024-09-20 13:28:21,883 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:28:21,884 INFO L158 Benchmark]: Toolchain (without parser) took 13031.71ms. Allocated memory was 151.0MB in the beginning and 249.6MB in the end (delta: 98.6MB). Free memory was 80.9MB in the beginning and 136.7MB in the end (delta: -55.8MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2024-09-20 13:28:21,884 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 151.0MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:28:21,884 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 151.0MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:28:21,885 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.40ms. Allocated memory is still 151.0MB. Free memory was 80.7MB in the beginning and 66.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:28:21,885 INFO L158 Benchmark]: Boogie Preprocessor took 38.41ms. Allocated memory is still 151.0MB. Free memory was 66.7MB in the beginning and 64.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:28:21,885 INFO L158 Benchmark]: RCFGBuilder took 339.52ms. Allocated memory was 151.0MB in the beginning and 249.6MB in the end (delta: 98.6MB). Free memory was 64.6MB in the beginning and 211.1MB in the end (delta: -146.5MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2024-09-20 13:28:21,886 INFO L158 Benchmark]: Referee took 12435.98ms. Allocated memory is still 249.6MB. Free memory was 210.1MB in the beginning and 136.7MB in the end (delta: 73.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. [2024-09-20 13:28:21,890 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 26. 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 loop head at line 36. 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 loop head at line 36 to exit of procedure main. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 25. 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 __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 0.14ms. Allocated memory is still 151.0MB. Free memory is still 116.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 151.0MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.40ms. Allocated memory is still 151.0MB. Free memory was 80.7MB in the beginning and 66.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.41ms. Allocated memory is still 151.0MB. Free memory was 66.7MB in the beginning and 64.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 339.52ms. Allocated memory was 151.0MB in the beginning and 249.6MB in the end (delta: 98.6MB). Free memory was 64.6MB in the beginning and 211.1MB in the end (delta: -146.5MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * Referee took 12435.98ms. Allocated memory is still 249.6MB. Free memory was 210.1MB in the beginning and 136.7MB in the end (delta: 73.4MB). Peak memory consumption was 73.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:28:21,917 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_unwindbound2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound2.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-f1d7dc9-m [2024-09-20 13:28:23,746 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:28:23,786 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 13:28:23,790 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:28:23,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:28:23,810 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:28:23,812 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:28:23,813 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:28:23,813 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:28:23,813 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:28:23,814 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:28:23,814 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:28:23,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:28:23,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:28:23,815 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:28:23,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:28:23,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:28:23,815 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:28:23,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:28:23,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:28:23,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:28:23,820 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:28:23,821 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:28:23,821 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 13:28:23,821 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 13:28:23,821 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:28:23,821 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 13:28:23,822 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:28:23,822 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:28:23,822 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:28:23,822 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:28:23,823 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:28:23,823 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:28:23,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:28:23,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:28:23,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:28:23,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:28:23,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:28:23,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:28:23,824 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 13:28:23,825 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 13:28:23,827 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:28:23,827 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:28:23,827 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:28:23,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:28:23,828 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 13:28:23,828 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:28:24,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:28:24,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:28:24,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:28:24,090 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:28:24,090 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:28:24,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound2.c [2024-09-20 13:28:25,600 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:28:25,741 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:28:25,742 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound2.c [2024-09-20 13:28:25,748 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/4ae24365c/35c68026ac0f475a9e6bacab85c32aa2/FLAG84df2cc15 [2024-09-20 13:28:26,169 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/4ae24365c/35c68026ac0f475a9e6bacab85c32aa2 [2024-09-20 13:28:26,171 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:28:26,171 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:28:26,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound2.yml/witness-2.1.yml [2024-09-20 13:28:26,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:28:26,220 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:28:26,222 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:28:26,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:28:26,226 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:28:26,227 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:26" (1/2) ... [2024-09-20 13:28:26,229 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e3f0827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:26, skipping insertion in model container [2024-09-20 13:28:26,229 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:26" (1/2) ... [2024-09-20 13:28:26,230 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@647198f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:26, skipping insertion in model container [2024-09-20 13:28:26,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:28:26" (2/2) ... [2024-09-20 13:28:26,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e3f0827 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:28:26, skipping insertion in model container [2024-09-20 13:28:26,231 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:28:26" (2/2) ... [2024-09-20 13:28:26,239 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:28:26,242 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 13:28:26,242 INFO L1541 ArrayList]: Function contract at [L8]: requires (counter == 0), ensures (counter == 0) [2024-09-20 13:28:26,242 INFO L1541 ArrayList]: Function contract at [L20]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-20 13:28:26,242 INFO L1541 ArrayList]: Function contract at [L11]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 13:28:26,257 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:28:26,382 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_unwindbound2.c[537,550] [2024-09-20 13:28:26,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:28:26,410 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-20 13:28:26,449 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_unwindbound2.c[537,550] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-20 13:28:26,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:28:26,485 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:28:26,486 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:28:26 WrapperNode [2024-09-20 13:28:26,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:28:26,487 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:28:26,487 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:28:26,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:28:26,498 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 01:28:26" (1/1) ... [2024-09-20 13:28:26,498 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 01:28:26" (1/1) ... [2024-09-20 13:28:26,504 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 01:28:26" (1/1) ... [2024-09-20 13:28:26,512 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 13:28:26,512 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 01:28:26" (1/1) ... [2024-09-20 13:28:26,512 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 01:28:26" (1/1) ... [2024-09-20 13:28:26,522 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 01:28:26" (1/1) ... [2024-09-20 13:28:26,527 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 01:28:26" (1/1) ... [2024-09-20 13:28:26,528 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 01:28:26" (1/1) ... [2024-09-20 13:28:26,529 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 01:28:26" (1/1) ... [2024-09-20 13:28:26,531 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:28:26,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:28:26,532 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:28:26,532 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:28:26,533 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 01:28:26" (1/1) ... [2024-09-20 13:28:26,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:28:26,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:28:26,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-20 13:28:26,574 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-20 13:28:26,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:28:26,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:28:26,621 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:28:26,621 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:28:26,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:28:26,621 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:28:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:28:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:28:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:28:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:28:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 13:28:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:28:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:28:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:28:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:28:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-20 13:28:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:28:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-20 13:28:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-20 13:28:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:28:26,704 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:28:26,707 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:28:26,728 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:28:26,764 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:28:27,208 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:28:27,222 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:28:27,246 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:28:27,246 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 13:28:27,247 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:27 BoogieIcfgContainer [2024-09-20 13:28:27,247 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:28:27,247 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:28:27,247 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:28:27,248 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:28:27,248 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:28:26" (1/4) ... [2024-09-20 13:28:27,249 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5df5304f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:28:27, skipping insertion in model container [2024-09-20 13:28:27,249 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:28:26" (2/4) ... [2024-09-20 13:28:27,249 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5df5304f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:28:27, skipping insertion in model container [2024-09-20 13:28:27,249 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 01:28:26" (3/4) ... [2024-09-20 13:28:27,249 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5df5304f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:28:27, skipping insertion in model container [2024-09-20 13:28:27,249 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 01:28:27" (4/4) ... [2024-09-20 13:28:27,250 INFO L79 RefereeObserver]: Analyzing ICFG lcm2_unwindbound2.c [2024-09-20 13:28:27,253 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 13:28:27,254 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 13:28:27,254 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:28:27,254 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 13:28:27,254 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-20 13:28:27,254 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 13:28:27,255 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 13:28:27,255 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 13:28:27,255 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 13:28:27,255 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:28:27,255 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 13:28:27,255 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:28:27,255 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 13:28:27,255 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 13:28:27,256 INFO L131 InvariantChecker]: Will check 8 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head, 3 loop-free subgraphs from loop head to error location [2024-09-20 13:28:27,294 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 13:28:27,295 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:27,295 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:27,295 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:27,296 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:27,298 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:27,305 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 13:28:27,305 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:27,306 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:27,306 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:27,306 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:27,309 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:27,321 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 13:28:27,350 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 13:28:27,350 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:27,350 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:27,350 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:27,350 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:27,350 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:27,354 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 13:28:27,354 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:27,354 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:27,354 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:27,354 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:27,354 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:27,359 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:27,372 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 13:28:27,372 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:27,372 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:27,372 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:27,372 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:27,372 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:27,379 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 13:28:27,379 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:27,380 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:27,380 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:27,380 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:27,380 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:31,416 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:28:31,438 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 13:28:31,439 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:31,439 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:31,439 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:31,439 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:31,439 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:31,440 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 13:28:31,440 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:31,440 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:31,440 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:31,440 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:31,440 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:31,441 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:31,451 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:28:31,452 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:31,452 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:31,452 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:31,452 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:31,452 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:31,453 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:28:31,453 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:31,454 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:31,454 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:31,454 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:31,454 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:31,455 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:31,466 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-20 13:28:31,466 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:31,466 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:31,466 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:31,466 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:31,466 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:31,501 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-20 13:28:31,501 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:31,501 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:31,501 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:31,502 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:31,502 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:31,503 INFO L520 InvariantChecker]: The annotation(s) from loop head L42-2 to error location mainErr7ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:28:31,510 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-20 13:28:31,511 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:31,511 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:31,511 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:31,511 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:31,511 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:31,521 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-20 13:28:31,523 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:31,523 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:31,524 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:31,524 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:31,526 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:35,559 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:28:35,580 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:28:35,581 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:35,581 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:35,581 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:35,581 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:35,581 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:35,582 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:28:35,582 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:35,582 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:35,582 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:35,582 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:35,582 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:35,583 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:35,589 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:28:35,589 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:35,589 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:35,590 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:35,590 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:35,590 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:35,591 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:28:35,591 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:35,591 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:35,591 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:35,592 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:35,592 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:35,593 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:28:35,598 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:28:35,598 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:35,598 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:35,598 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:35,598 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:35,599 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:35,599 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:28:35,599 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:35,600 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:35,600 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:35,600 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:35,600 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:35,601 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:28:35,606 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 13:28:35,606 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:35,606 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:35,606 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:35,607 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:35,607 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:35,608 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 13:28:35,608 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:35,608 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:35,608 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:35,608 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:35,608 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:35,609 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:35,615 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-20 13:28:35,615 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:35,615 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:35,615 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:35,615 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:35,615 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:35,618 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-20 13:28:35,618 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:35,618 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:35,618 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:35,618 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:35,618 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:35,634 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:28:35,642 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-20 13:28:35,642 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:35,642 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:35,642 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:35,642 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:35,642 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:35,655 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-20 13:28:35,655 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:35,655 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:35,655 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:35,656 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:35,659 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:39,729 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:28:39,757 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-20 13:28:39,757 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5df5304f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:28:39, skipping insertion in model container [2024-09-20 13:28:39,757 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:28:39,758 INFO L158 Benchmark]: Toolchain (without parser) took 13537.45ms. Allocated memory is still 109.1MB. Free memory was 76.9MB in the beginning and 43.4MB in the end (delta: 33.4MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2024-09-20 13:28:39,759 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 67.1MB. Free memory was 49.6MB in the beginning and 49.5MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:28:39,759 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:28:39,759 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.92ms. Allocated memory is still 109.1MB. Free memory was 76.9MB in the beginning and 62.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:28:39,760 INFO L158 Benchmark]: Boogie Preprocessor took 44.17ms. Allocated memory is still 109.1MB. Free memory was 62.5MB in the beginning and 60.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:28:39,761 INFO L158 Benchmark]: RCFGBuilder took 715.26ms. Allocated memory is still 109.1MB. Free memory was 60.1MB in the beginning and 74.7MB in the end (delta: -14.7MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2024-09-20 13:28:39,761 INFO L158 Benchmark]: Referee took 12509.71ms. Allocated memory is still 109.1MB. Free memory was 74.7MB in the beginning and 43.4MB in the end (delta: 31.3MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2024-09-20 13:28:39,763 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 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 loop head at line 36 to exit of procedure main. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 26. 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 28. 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 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 loop head at line 36. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 25. 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 exit of procedure __VERIFIER_assert. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 67.1MB. Free memory was 49.6MB in the beginning and 49.5MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 109.1MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.92ms. Allocated memory is still 109.1MB. Free memory was 76.9MB in the beginning and 62.5MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.17ms. Allocated memory is still 109.1MB. Free memory was 62.5MB in the beginning and 60.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 715.26ms. Allocated memory is still 109.1MB. Free memory was 60.1MB in the beginning and 74.7MB in the end (delta: -14.7MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Referee took 12509.71ms. Allocated memory is still 109.1MB. Free memory was 74.7MB in the beginning and 43.4MB in the end (delta: 31.3MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:28:39,807 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN