./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invariants/eq1.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/eq1.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version de325976 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/loop-invariants/eq1.c ../results/automizer-verification-files/SV-COMP24_unreach-call/eq1.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-de32597-m [2024-09-17 19:39:32,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-17 19:39:32,914 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-17 19:39:32,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-17 19:39:32,921 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-17 19:39:32,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-17 19:39:32,949 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-17 19:39:32,949 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-17 19:39:32,950 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-17 19:39:32,950 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-17 19:39:32,950 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-17 19:39:32,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-17 19:39:32,951 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-17 19:39:32,951 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-17 19:39:32,952 INFO L153 SettingsManager]: * Use SBE=true [2024-09-17 19:39:32,952 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-17 19:39:32,954 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-17 19:39:32,955 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-17 19:39:32,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-17 19:39:32,957 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-17 19:39:32,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-17 19:39:32,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-17 19:39:32,962 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-17 19:39:32,962 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-17 19:39:32,963 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-17 19:39:32,963 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-17 19:39:32,963 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-17 19:39:32,963 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-17 19:39:32,963 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-17 19:39:32,963 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-17 19:39:32,964 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-17 19:39:32,964 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-17 19:39:32,964 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-17 19:39:32,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:39:32,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-17 19:39:32,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-17 19:39:32,965 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-17 19:39:32,965 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-17 19:39:32,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-17 19:39:32,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-17 19:39:32,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-17 19:39:32,968 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-17 19:39:32,968 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-17 19:39:32,968 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-17 19:39:33,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-17 19:39:33,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-17 19:39:33,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-17 19:39:33,233 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-17 19:39:33,234 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-17 19:39:33,236 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/eq1.yml/witness-2.1.yml [2024-09-17 19:39:33,308 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-17 19:39:33,322 INFO L274 PluginConnector]: CDTParser initialized [2024-09-17 19:39:33,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invariants/eq1.c [2024-09-17 19:39:34,746 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-17 19:39:34,932 INFO L384 CDTParser]: Found 1 translation units. [2024-09-17 19:39:34,932 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invariants/eq1.c [2024-09-17 19:39:34,939 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/c84e24b90/ef0d3af7ac624f18be428c5964ef8efe/FLAG2f3ccae6f [2024-09-17 19:39:34,952 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/c84e24b90/ef0d3af7ac624f18be428c5964ef8efe [2024-09-17 19:39:34,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-17 19:39:34,954 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-17 19:39:34,955 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-17 19:39:34,956 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-17 19:39:34,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-17 19:39:34,960 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:39:33" (1/2) ... [2024-09-17 19:39:34,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5068615 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.09 07:39:34, skipping insertion in model container [2024-09-17 19:39:34,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:39:33" (1/2) ... [2024-09-17 19:39:34,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@47ff2336 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 17.09 07:39:34, skipping insertion in model container [2024-09-17 19:39:34,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:39:34" (2/2) ... [2024-09-17 19:39:34,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5068615 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:34, skipping insertion in model container [2024-09-17 19:39:34,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 07:39:34" (2/2) ... [2024-09-17 19:39:34,971 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-17 19:39:34,974 INFO L1541 ArrayList]: Loop invariant at [L23-L29] ((z == y) && (x == w)) [2024-09-17 19:39:34,974 INFO L1541 ArrayList]: Function contract at [L12]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-17 19:39:34,989 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-17 19:39:35,132 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invariants/eq1.c[593,606] [2024-09-17 19:39:35,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:39:35,160 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-17 19:39:35,194 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invariants/eq1.c[593,606] Start Parsing Local [2024-09-17 19:39:35,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-17 19:39:35,213 INFO L204 MainTranslator]: Completed translation [2024-09-17 19:39:35,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:35 WrapperNode [2024-09-17 19:39:35,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-17 19:39:35,214 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-17 19:39:35,214 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-17 19:39:35,214 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-17 19:39:35,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:35" (1/1) ... [2024-09-17 19:39:35,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:35" (1/1) ... [2024-09-17 19:39:35,233 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:35" (1/1) ... [2024-09-17 19:39:35,244 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 [2024-09-17 19:39:35,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:35" (1/1) ... [2024-09-17 19:39:35,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:35" (1/1) ... [2024-09-17 19:39:35,255 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:35" (1/1) ... [2024-09-17 19:39:35,259 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:35" (1/1) ... [2024-09-17 19:39:35,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:35" (1/1) ... [2024-09-17 19:39:35,260 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:35" (1/1) ... [2024-09-17 19:39:35,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-17 19:39:35,263 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-17 19:39:35,263 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-17 19:39:35,263 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-17 19:39:35,264 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:35" (1/1) ... [2024-09-17 19:39:35,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-17 19:39:35,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-17 19:39:35,306 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) [2024-09-17 19:39:35,309 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 [2024-09-17 19:39:35,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-17 19:39:35,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-17 19:39:35,360 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-17 19:39:35,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-17 19:39:35,360 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-17 19:39:35,360 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-17 19:39:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-17 19:39:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-17 19:39:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-17 19:39:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-17 19:39:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-17 19:39:35,362 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-17 19:39:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-17 19:39:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-17 19:39:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-17 19:39:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-17 19:39:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-17 19:39:35,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-17 19:39:35,436 INFO L242 CfgBuilder]: Building ICFG [2024-09-17 19:39:35,439 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-17 19:39:35,683 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-17 19:39:35,696 INFO L291 CfgBuilder]: Performing block encoding [2024-09-17 19:39:35,728 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-17 19:39:35,728 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-17 19:39:35,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:39:35 BoogieIcfgContainer [2024-09-17 19:39:35,729 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-17 19:39:35,729 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-17 19:39:35,729 INFO L270 PluginConnector]: Initializing Referee... [2024-09-17 19:39:35,730 INFO L274 PluginConnector]: Referee initialized [2024-09-17 19:39:35,730 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 17.09 07:39:33" (1/4) ... [2024-09-17 19:39:35,731 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3fa67c78 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 17.09 07:39:35, skipping insertion in model container [2024-09-17 19:39:35,731 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 17.09 07:39:34" (2/4) ... [2024-09-17 19:39:35,731 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3fa67c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 17.09 07:39:35, skipping insertion in model container [2024-09-17 19:39:35,731 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 07:39:35" (3/4) ... [2024-09-17 19:39:35,732 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3fa67c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 17.09 07:39:35, skipping insertion in model container [2024-09-17 19:39:35,732 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 07:39:35" (4/4) ... [2024-09-17 19:39:35,733 INFO L79 RefereeObserver]: Analyzing ICFG eq1.c [2024-09-17 19:39:35,738 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-17 19:39:35,739 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-17 19:39:35,740 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-17 19:39:35,740 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-17 19:39:35,741 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-17 19:39:35,741 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-17 19:39:35,741 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head, 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to error location [2024-09-17 19:39:35,793 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-17 19:39:35,794 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-17 19:39:35,795 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-17 19:39:35,795 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-17 19:39:35,796 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-17 19:39:35,798 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:39:35,823 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-17 19:39:35,825 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:39:35,825 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-17 19:39:35,825 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-17 19:39:35,826 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-17 19:39:35,832 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-17 19:39:35,852 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-17 19:39:35,864 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-17 19:39:35,864 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-17 19:39:35,865 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-17 19:39:35,865 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-17 19:39:35,865 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-17 19:39:35,865 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:39:35,867 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-17 19:39:35,867 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:39:35,867 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-17 19:39:35,868 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-17 19:39:35,868 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-17 19:39:35,868 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-17 19:39:35,873 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-17 19:39:35,886 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-17 19:39:35,887 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-17 19:39:35,887 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-17 19:39:35,887 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-17 19:39:35,887 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-17 19:39:35,888 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:39:35,904 INFO L101 BaseMinimizeStates]: Removed 10 edges and 4 locations by large block encoding [2024-09-17 19:39:35,904 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:39:35,905 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-17 19:39:35,905 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-17 19:39:35,905 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-17 19:39:35,913 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-17 19:39:35,939 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-17 19:39:35,951 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-17 19:39:35,953 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-17 19:39:35,956 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-17 19:39:35,956 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-17 19:39:35,957 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-17 19:39:35,957 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:39:35,960 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-17 19:39:35,961 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:39:35,964 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-17 19:39:35,964 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-17 19:39:35,965 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-17 19:39:35,965 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-17 19:39:35,969 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-17 19:39:35,982 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-17 19:39:35,984 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-17 19:39:35,984 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-17 19:39:35,984 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-17 19:39:35,984 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-17 19:39:35,984 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:39:35,986 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-17 19:39:35,990 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-17 19:39:35,990 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-17 19:39:35,991 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-17 19:39:35,991 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-17 19:39:35,991 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-17 19:39:35,997 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-17 19:39:36,001 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-17 19:39:36,002 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3fa67c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 17.09 07:39:36, skipping insertion in model container [2024-09-17 19:39:36,003 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-17 19:39:36,005 INFO L158 Benchmark]: Toolchain (without parser) took 1050.01ms. Allocated memory is still 157.3MB. Free memory was 88.3MB in the beginning and 108.1MB in the end (delta: -19.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:39:36,005 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:39:36,005 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 157.3MB. Free memory was 132.7MB in the beginning and 132.5MB in the end (delta: 231.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-17 19:39:36,006 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.02ms. Allocated memory is still 157.3MB. Free memory was 88.2MB in the beginning and 75.0MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-17 19:39:36,009 INFO L158 Benchmark]: Boogie Preprocessor took 47.83ms. Allocated memory is still 157.3MB. Free memory was 75.0MB in the beginning and 73.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-17 19:39:36,011 INFO L158 Benchmark]: RCFGBuilder took 466.16ms. Allocated memory is still 157.3MB. Free memory was 73.1MB in the beginning and 125.0MB in the end (delta: -52.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-17 19:39:36,012 INFO L158 Benchmark]: Referee took 273.62ms. Allocated memory is still 157.3MB. Free memory was 125.0MB in the beginning and 108.1MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-17 19:39:36,018 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness. Annotation is a valid proof of correctness. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from loop head at line 23 to loop head at line 23. 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 14. Annotation is valid for all loop-free paths from loop head at line 23 to check that procedure precondition always holds at line 23. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 23. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.11ms. Allocated memory is still 157.3MB. Free memory was 132.7MB in the beginning and 132.5MB in the end (delta: 231.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.02ms. Allocated memory is still 157.3MB. Free memory was 88.2MB in the beginning and 75.0MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.83ms. Allocated memory is still 157.3MB. Free memory was 75.0MB in the beginning and 73.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 466.16ms. Allocated memory is still 157.3MB. Free memory was 73.1MB in the beginning and 125.0MB in the end (delta: -52.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 273.62ms. Allocated memory is still 157.3MB. Free memory was 125.0MB in the beginning and 108.1MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-17 19:39:36,051 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE