./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/lcm2.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2.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/lcm2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2.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 13:26:45,806 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:26:45,893 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:26:45,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:26:45,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:26:45,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:26:45,933 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:26:45,934 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:26:45,935 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:26:45,937 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:26:45,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:26:45,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:26:45,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:26:45,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:26:45,939 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:26:45,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:26:45,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:26:45,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:26:45,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:26:45,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:26:45,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:26:45,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:26:45,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:26:45,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:26:45,944 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:26:45,945 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:26:45,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:26:45,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:26:45,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:26:45,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:26:45,946 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:26:45,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:26:45,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:26:45,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:45,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:26:45,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:26:45,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:26:45,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:26:45,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:26:45,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:26:45,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:26:45,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:26:45,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:26:45,949 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:26:46,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:26:46,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:26:46,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:26:46,212 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:26:46,213 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:26:46,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench/lcm2.c [2024-09-20 13:26:47,756 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:26:47,978 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:26:47,980 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench/lcm2.c [2024-09-20 13:26:47,992 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/9ee59b737/e4f40f075b5643db8e74b482d26ed9de/FLAGc5817f376 [2024-09-20 13:26:48,008 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/9ee59b737/e4f40f075b5643db8e74b482d26ed9de [2024-09-20 13:26:48,010 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:26:48,011 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:26:48,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2.yml/witness-2.1.yml [2024-09-20 13:26:48,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:26:48,056 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:26:48,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:48,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:26:48,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:26:48,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:48" (1/2) ... [2024-09-20 13:26:48,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dce3da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:48, skipping insertion in model container [2024-09-20 13:26:48,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:26:48" (1/2) ... [2024-09-20 13:26:48,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@50aa7215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:26:48, skipping insertion in model container [2024-09-20 13:26:48,069 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 01:26:48" (2/2) ... [2024-09-20 13:26:48,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dce3da and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:48, skipping insertion in model container [2024-09-20 13:26:48,069 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 01:26:48" (2/2) ... [2024-09-20 13:26:48,076 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:26:48,076 INFO L1541 ArrayList]: Loop invariant at [L35-L48] (((((unsigned long long) b * a) % 2147483648) * 2) == (((__int128) ((unsigned long long) y * v) + ((unsigned long long) x * u)) % 4294967296)) [2024-09-20 13:26:48,077 INFO L1541 ArrayList]: Function contract at [L11]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 13:26:48,093 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:26:48,315 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/lcm2.c[537,550] [2024-09-20 13:26:48,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:48,341 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 13:26:48,376 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/lcm2.c[537,550] Start Parsing Local [2024-09-20 13:26:48,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:26:48,401 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:26:48,401 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:26:48 WrapperNode [2024-09-20 13:26:48,402 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:26:48,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:26:48,403 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:26:48,403 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:26:48,419 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 01:26:48" (1/1) ... [2024-09-20 13:26:48,419 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 01:26:48" (1/1) ... [2024-09-20 13:26:48,427 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 01:26:48" (1/1) ... [2024-09-20 13:26:48,442 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-20 13:26:48,442 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 01:26:48" (1/1) ... [2024-09-20 13:26:48,442 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 01:26:48" (1/1) ... [2024-09-20 13:26:48,446 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 01:26:48" (1/1) ... [2024-09-20 13:26:48,452 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 01:26:48" (1/1) ... [2024-09-20 13:26:48,458 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 01:26:48" (1/1) ... [2024-09-20 13:26:48,459 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 01:26:48" (1/1) ... [2024-09-20 13:26:48,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:26:48,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:26:48,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:26:48,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:26:48,466 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 01:26:48" (1/1) ... [2024-09-20 13:26:48,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:48,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:26:48,497 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 13:26:48,503 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 13:26:48,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:26:48,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:26:48,557 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:26:48,557 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:26:48,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:26:48,559 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:26:48,559 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:26:48,559 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:26:48,559 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:26:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:26:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 13:26:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:26:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:26:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:26:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:26:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 13:26:48,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:26:48,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 13:26:48,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 13:26:48,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:26:48,633 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:26:48,637 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:26:48,905 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:26:48,923 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:26:48,952 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:26:48,952 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 13:26:48,952 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:26:48 BoogieIcfgContainer [2024-09-20 13:26:48,952 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:26:48,953 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:26:48,953 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:26:48,954 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:26:48,954 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:26:48" (1/4) ... [2024-09-20 13:26:48,957 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@670e3c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:26:48, skipping insertion in model container [2024-09-20 13:26:48,957 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 01:26:48" (2/4) ... [2024-09-20 13:26:48,958 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@670e3c11 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:26:48, skipping insertion in model container [2024-09-20 13:26:48,959 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 01:26:48" (3/4) ... [2024-09-20 13:26:48,959 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@670e3c11 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:26:48, skipping insertion in model container [2024-09-20 13:26:48,960 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 01:26:48" (4/4) ... [2024-09-20 13:26:48,961 INFO L79 RefereeObserver]: Analyzing ICFG lcm2.c [2024-09-20 13:26:48,964 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 13:26:48,965 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L41-2 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 7 edges. [2024-09-20 13:26:48,965 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L41-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-20 13:26:48,966 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-20 13:26:48,966 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L41-2 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 13:26:48,967 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 13:26:48,968 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 13:26:48,968 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to loop head, 2 loop-free subgraphs from procedure entry to error location, 2 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from loop head to loop head [2024-09-20 13:26:49,016 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-20 13:26:49,017 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:49,020 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:49,020 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:49,021 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:49,024 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:49,059 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-20 13:26:49,060 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:49,060 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:49,060 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:49,061 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:49,072 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:49,091 INFO L520 InvariantChecker]: The annotation(s) from loop head L41-2 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:26:49,108 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 7 edges [2024-09-20 13:26:49,108 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:49,109 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:49,109 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:49,109 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:49,109 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:49,143 INFO L101 BaseMinimizeStates]: Removed 12 edges and 5 locations by large block encoding [2024-09-20 13:26:49,143 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:49,144 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:49,144 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:49,144 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:49,153 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:53,164 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:26:53,191 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-20 13:26:53,191 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:53,192 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:53,192 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:53,192 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:53,192 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:53,197 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-20 13:26:53,198 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:53,198 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:53,198 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:53,198 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:53,199 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:53,204 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:26:53,215 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:26:53,216 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:53,216 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:53,216 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:53,217 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:53,217 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:53,222 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:26:53,222 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:53,222 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:53,222 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:53,223 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:53,223 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:57,227 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:26:57,244 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:26:57,245 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:57,245 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:57,245 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:57,245 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:57,246 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:57,249 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:26:57,249 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:57,249 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:57,250 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:57,250 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:57,251 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:57,255 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:26:57,276 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:26:57,276 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:26:57,277 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:26:57,277 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:26:57,277 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:26:57,277 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:57,278 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:26:57,279 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:26:57,279 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:26:57,279 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:26:57,279 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:26:57,279 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:26:57,281 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:26:57,285 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-20 13:26:57,285 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@670e3c11 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:26:57, skipping insertion in model container [2024-09-20 13:26:57,285 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:26:57,287 INFO L158 Benchmark]: Toolchain (without parser) took 9230.71ms. Allocated memory is still 142.6MB. Free memory was 81.8MB in the beginning and 111.5MB in the end (delta: -29.7MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-09-20 13:26:57,288 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 96.5MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:57,288 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:57,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.47ms. Allocated memory is still 142.6MB. Free memory was 81.8MB in the beginning and 108.8MB in the end (delta: -27.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-20 13:26:57,289 INFO L158 Benchmark]: Boogie Preprocessor took 61.56ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 107.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:26:57,289 INFO L158 Benchmark]: RCFGBuilder took 487.23ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 90.8MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:26:57,290 INFO L158 Benchmark]: Referee took 8332.55ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 111.5MB in the end (delta: -20.7MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2024-09-20 13:26:57,309 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 35 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 35 to loop head at line 35. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 35. 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 loop head at line 35 to check that procedure precondition always holds at line 35. 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. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 96.5MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.47ms. Allocated memory is still 142.6MB. Free memory was 81.8MB in the beginning and 108.8MB in the end (delta: -27.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.56ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 107.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 487.23ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 90.8MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 8332.55ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 111.5MB in the end (delta: -20.7MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:26:57,346 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 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/lcm2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2.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 13:26:59,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:26:59,635 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 13:26:59,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:26:59,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:26:59,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:26:59,676 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:26:59,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:26:59,677 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:26:59,679 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:26:59,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:26:59,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:26:59,680 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:26:59,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:26:59,681 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:26:59,681 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:26:59,682 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:26:59,682 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:26:59,686 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:26:59,687 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:26:59,687 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:26:59,690 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:26:59,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:26:59,691 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 13:26:59,692 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 13:26:59,692 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:26:59,692 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 13:26:59,692 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:26:59,703 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:26:59,703 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:26:59,704 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:26:59,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:26:59,704 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:26:59,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:26:59,705 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:26:59,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:26:59,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:26:59,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:26:59,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:26:59,706 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 13:26:59,706 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 13:26:59,708 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:26:59,709 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:26:59,709 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:26:59,710 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:26:59,710 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 13:26:59,710 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:27:00,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:27:00,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:27:00,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:27:00,060 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:27:00,060 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:27:00,063 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench/lcm2.c [2024-09-20 13:27:01,558 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:27:01,751 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:27:01,751 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench/lcm2.c [2024-09-20 13:27:01,758 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/ac66dc494/0a7ea9ec51e24ad3a296d7a712ed38fc/FLAGe85fd2649 [2024-09-20 13:27:01,773 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/ac66dc494/0a7ea9ec51e24ad3a296d7a712ed38fc [2024-09-20 13:27:01,775 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:27:01,776 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:27:01,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2.yml/witness-2.1.yml [2024-09-20 13:27:01,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:27:01,821 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:27:01,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:27:01,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:27:01,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:27:01,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:27:01" (1/2) ... [2024-09-20 13:27:01,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24377ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:27:01, skipping insertion in model container [2024-09-20 13:27:01,840 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:27:01" (1/2) ... [2024-09-20 13:27:01,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3fb495c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:27:01, skipping insertion in model container [2024-09-20 13:27:01,843 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 01:27:01" (2/2) ... [2024-09-20 13:27:01,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24377ab and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:27:01, skipping insertion in model container [2024-09-20 13:27:01,844 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 01:27:01" (2/2) ... [2024-09-20 13:27:01,855 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:27:01,856 INFO L1541 ArrayList]: Loop invariant at [L35-L48] (((((unsigned long long) b * a) % 2147483648) * 2) == (((__int128) ((unsigned long long) y * v) + ((unsigned long long) x * u)) % 4294967296)) [2024-09-20 13:27:01,856 INFO L1541 ArrayList]: Function contract at [L11]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 13:27:01,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:27:02,065 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/lcm2.c[537,550] [2024-09-20 13:27:02,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:27:02,103 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 13:27:02,144 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/lcm2.c[537,550] Start Parsing Local [2024-09-20 13:27:02,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:27:02,177 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:27:02,178 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:27:02 WrapperNode [2024-09-20 13:27:02,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:27:02,179 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:27:02,179 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:27:02,179 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:27:02,191 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 01:27:02" (1/1) ... [2024-09-20 13:27:02,192 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 01:27:02" (1/1) ... [2024-09-20 13:27:02,202 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 01:27:02" (1/1) ... [2024-09-20 13:27:02,216 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-20 13:27:02,217 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 01:27:02" (1/1) ... [2024-09-20 13:27:02,217 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 01:27:02" (1/1) ... [2024-09-20 13:27:02,229 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 01:27:02" (1/1) ... [2024-09-20 13:27:02,234 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 01:27:02" (1/1) ... [2024-09-20 13:27:02,239 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 01:27:02" (1/1) ... [2024-09-20 13:27:02,240 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 01:27:02" (1/1) ... [2024-09-20 13:27:02,242 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:27:02,243 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:27:02,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:27:02,245 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:27:02,246 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 01:27:02" (1/1) ... [2024-09-20 13:27:02,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:27:02,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:27:02,283 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 13:27:02,286 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 13:27:02,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:27:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:27:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:27:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:27:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:27:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:27:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:27:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:27:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:27:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:27:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 13:27:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:27:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:27:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:27:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:27:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-20 13:27:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:27:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-20 13:27:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-20 13:27:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:27:02,422 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:27:02,426 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:27:03,039 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:27:03,057 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:27:03,099 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:27:03,100 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 13:27:03,100 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:27:03 BoogieIcfgContainer [2024-09-20 13:27:03,100 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:27:03,101 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:27:03,101 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:27:03,102 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:27:03,102 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:27:01" (1/4) ... [2024-09-20 13:27:03,102 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@507b309d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:27:03, skipping insertion in model container [2024-09-20 13:27:03,102 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 01:27:01" (2/4) ... [2024-09-20 13:27:03,103 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@507b309d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:27:03, skipping insertion in model container [2024-09-20 13:27:03,103 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 01:27:02" (3/4) ... [2024-09-20 13:27:03,105 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@507b309d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:27:03, skipping insertion in model container [2024-09-20 13:27:03,107 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 01:27:03" (4/4) ... [2024-09-20 13:27:03,109 INFO L79 RefereeObserver]: Analyzing ICFG lcm2.c [2024-09-20 13:27:03,112 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 13:27:03,113 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L41-2 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 7 edges. [2024-09-20 13:27:03,113 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L41-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-20 13:27:03,113 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-20 13:27:03,114 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L41-2 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 13:27:03,114 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 13:27:03,114 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 13:27:03,114 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 2 loop-free subgraphs from loop head to error location, 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head [2024-09-20 13:27:03,176 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2024-09-20 13:27:03,177 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:03,177 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:03,178 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:03,191 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:03,193 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:03,213 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-20 13:27:03,214 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:03,214 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:03,215 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:03,215 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:03,217 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:03,229 INFO L520 InvariantChecker]: The annotation(s) from loop head L41-2 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:27:03,248 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 7 edges [2024-09-20 13:27:03,249 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:03,249 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:03,249 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:03,249 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:03,249 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:03,284 INFO L101 BaseMinimizeStates]: Removed 12 edges and 5 locations by large block encoding [2024-09-20 13:27:03,285 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:03,285 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:03,285 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:03,285 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:03,300 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:07,415 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:27:07,470 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-20 13:27:07,473 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:07,474 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:07,474 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:07,474 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:07,474 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:07,479 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-20 13:27:07,479 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:07,480 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:07,480 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:07,480 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:07,480 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:07,513 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:27:07,536 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:27:07,536 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:07,537 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:07,537 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:07,537 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:07,537 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:07,548 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:27:07,548 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:07,548 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:07,548 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:07,548 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:07,548 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:11,583 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:27:11,606 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:27:11,606 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:11,606 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:11,606 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:11,606 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:11,606 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:11,609 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:27:11,610 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:11,610 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:11,610 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:11,610 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:11,611 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:11,612 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:27:11,628 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:27:11,629 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:27:11,629 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:27:11,629 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:27:11,629 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:27:11,630 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:11,631 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:27:11,631 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:27:11,632 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:27:11,632 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:27:11,632 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:27:11,632 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:27:11,634 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:27:11,637 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-20 13:27:11,637 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@507b309d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:27:11, skipping insertion in model container [2024-09-20 13:27:11,637 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:27:11,639 INFO L158 Benchmark]: Toolchain (without parser) took 9817.23ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 30.4MB in the beginning and 55.4MB in the end (delta: -25.1MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2024-09-20 13:27:11,640 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 48.2MB. Free memory was 23.2MB in the beginning and 23.2MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:27:11,640 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 65.0MB. Free memory is still 32.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:27:11,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.27ms. Allocated memory is still 65.0MB. Free memory was 30.1MB in the beginning and 31.7MB in the end (delta: -1.6MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2024-09-20 13:27:11,641 INFO L158 Benchmark]: Boogie Preprocessor took 63.21ms. Allocated memory is still 65.0MB. Free memory was 31.7MB in the beginning and 29.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:27:11,642 INFO L158 Benchmark]: RCFGBuilder took 857.39ms. Allocated memory is still 65.0MB. Free memory was 29.3MB in the beginning and 30.7MB in the end (delta: -1.4MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2024-09-20 13:27:11,643 INFO L158 Benchmark]: Referee took 8536.61ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 30.7MB in the beginning and 55.4MB in the end (delta: -24.7MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-09-20 13:27:11,645 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 35 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 35 to loop head at line 35. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 35. 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 loop head at line 35 to check that procedure precondition always holds at line 35. 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 0.48ms. Allocated memory is still 48.2MB. Free memory was 23.2MB in the beginning and 23.2MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 65.0MB. Free memory is still 32.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.27ms. Allocated memory is still 65.0MB. Free memory was 30.1MB in the beginning and 31.7MB in the end (delta: -1.6MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.21ms. Allocated memory is still 65.0MB. Free memory was 31.7MB in the beginning and 29.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 857.39ms. Allocated memory is still 65.0MB. Free memory was 29.3MB in the beginning and 30.7MB in the end (delta: -1.4MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Referee took 8536.61ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 30.7MB in the beginning and 55.4MB in the end (delta: -24.7MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:27:11,700 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