./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/cggmp2005_variant.i --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/cggmp2005_variant.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1d5fa637 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-lit/cggmp2005_variant.i ../results/automizer-verification-files/SV-COMP24_unreach-call/cggmp2005_variant.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-1d5fa63-m [2024-09-13 10:12:47,981 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:12:48,045 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-13 10:12:48,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:12:48,050 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:12:48,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:12:48,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:12:48,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:12:48,073 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:12:48,074 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:12:48,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:12:48,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:12:48,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:12:48,075 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:12:48,075 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:12:48,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:12:48,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:12:48,075 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:12:48,076 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 10:12:48,076 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:12:48,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:12:48,078 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:12:48,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:12:48,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:12:48,079 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:12:48,079 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:12:48,079 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:12:48,079 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:12:48,080 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:12:48,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:12:48,080 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:12:48,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:12:48,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:12:48,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:12:48,081 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:12:48,081 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:12:48,081 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 10:12:48,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 10:12:48,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:12:48,081 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:12:48,081 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:12:48,082 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:12:48,082 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/automizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:12:48,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:12:48,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:12:48,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:12:48,288 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:12:48,289 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:12:48,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/cggmp2005_variant.yml/witness-2.1.yml [2024-09-13 10:12:48,337 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:12:48,340 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:12:48,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-lit/cggmp2005_variant.i [2024-09-13 10:12:49,598 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:12:49,733 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:12:49,734 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/cggmp2005_variant.i [2024-09-13 10:12:49,740 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/4a7b65e2a/4d59dae9ff0e42e0ae9ab16862759816/FLAG2e0205e31 [2024-09-13 10:12:49,751 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/4a7b65e2a/4d59dae9ff0e42e0ae9ab16862759816 [2024-09-13 10:12:49,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:12:49,754 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-13 10:12:49,754 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:12:49,755 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:12:49,759 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:12:49,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:12:48" (1/2) ... [2024-09-13 10:12:49,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df76b43 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:12:49, skipping insertion in model container [2024-09-13 10:12:49,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:12:48" (1/2) ... [2024-09-13 10:12:49,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2ca3019f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:12:49, skipping insertion in model container [2024-09-13 10:12:49,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:12:49" (2/2) ... [2024-09-13 10:12:49,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df76b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:12:49, skipping insertion in model container [2024-09-13 10:12:49,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:12:49" (2/2) ... [2024-09-13 10:12:49,767 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:12:49,767 INFO L1541 ArrayList]: Loop invariant at [L30-L34] (((lo + ((long long) mid * 2)) == hi) && (lo <= hi)) [2024-09-13 10:12:49,767 INFO L1541 ArrayList]: Function contract at [L17]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-13 10:12:49,779 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:12:49,895 WARN L247 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-lit/cggmp2005_variant.i[895,908] [2024-09-13 10:12:49,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:12:49,912 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-13 10:12:49,937 WARN L247 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-lit/cggmp2005_variant.i[895,908] Start Parsing Local [2024-09-13 10:12:49,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:12:49,952 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:12:49,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:12:49 WrapperNode [2024-09-13 10:12:49,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:12:49,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-13 10:12:49,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-13 10:12:49,953 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-13 10:12:49,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:12:49" (1/1) ... [2024-09-13 10:12:49,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:12:49" (1/1) ... [2024-09-13 10:12:49,975 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2024-09-13 10:12:49,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-13 10:12:49,976 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:12:49,976 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:12:49,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:12:49,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:12:49" (1/1) ... [2024-09-13 10:12:49,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:12:49" (1/1) ... [2024-09-13 10:12:49,985 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:12:49" (1/1) ... [2024-09-13 10:12:49,995 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-13 10:12:49,999 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:12:49" (1/1) ... [2024-09-13 10:12:49,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:12:49" (1/1) ... [2024-09-13 10:12:50,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:12:49" (1/1) ... [2024-09-13 10:12:50,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:12:49" (1/1) ... [2024-09-13 10:12:50,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:12:49" (1/1) ... [2024-09-13 10:12:50,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:12:49" (1/1) ... [2024-09-13 10:12:50,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:12:50,009 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:12:50,009 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:12:50,009 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:12:50,010 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:12:49" (1/1) ... [2024-09-13 10:12:50,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:12:50,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 10:12:50,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-13 10:12:50,065 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-13 10:12:50,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:12:50,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-13 10:12:50,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:12:50,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:12:50,170 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:12:50,171 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:12:50,236 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-09-13 10:12:50,237 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:12:50,254 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:12:50,255 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-13 10:12:50,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:12:50 BoogieIcfgContainer [2024-09-13 10:12:50,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:12:50,256 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-13 10:12:50,256 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-13 10:12:50,259 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-13 10:12:50,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:12:48" (1/4) ... [2024-09-13 10:12:50,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77103370 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 10:12:50, skipping insertion in model container [2024-09-13 10:12:50,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 10:12:49" (2/4) ... [2024-09-13 10:12:50,260 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77103370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 10:12:50, skipping insertion in model container [2024-09-13 10:12:50,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:12:49" (3/4) ... [2024-09-13 10:12:50,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77103370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 10:12:50, skipping insertion in model container [2024-09-13 10:12:50,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:12:50" (4/4) ... [2024-09-13 10:12:50,263 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.i [2024-09-13 10:12:50,275 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-13 10:12:50,276 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-09-13 10:12:50,315 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-13 10:12:50,322 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@369604df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-13 10:12:50,322 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-13 10:12:50,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.8) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 10:12:50,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-09-13 10:12:50,330 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 10:12:50,330 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-09-13 10:12:50,331 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 10:12:50,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 10:12:50,336 INFO L85 PathProgramCache]: Analyzing trace with hash 68457, now seen corresponding path program 1 times [2024-09-13 10:12:50,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 10:12:50,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881352774] [2024-09-13 10:12:50,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 10:12:50,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 10:12:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 10:12:50,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 10:12:50,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 10:12:50,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881352774] [2024-09-13 10:12:50,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881352774] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 10:12:50,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 10:12:50,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-13 10:12:50,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082583032] [2024-09-13 10:12:50,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 10:12:50,590 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-13 10:12:50,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 10:12:50,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-13 10:12:50,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-13 10:12:50,614 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.8) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 10:12:50,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 10:12:50,648 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-09-13 10:12:50,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 10:12:50,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-09-13 10:12:50,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 10:12:50,657 INFO L225 Difference]: With dead ends: 18 [2024-09-13 10:12:50,657 INFO L226 Difference]: Without dead ends: 15 [2024-09-13 10:12:50,658 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-13 10:12:50,660 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 10:12:50,660 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 20 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 10:12:50,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-09-13 10:12:50,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-09-13 10:12:50,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 10:12:50,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-09-13 10:12:50,679 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 3 [2024-09-13 10:12:50,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 10:12:50,679 INFO L474 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-09-13 10:12:50,679 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 10:12:50,679 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-09-13 10:12:50,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-09-13 10:12:50,679 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 10:12:50,680 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-09-13 10:12:50,680 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-13 10:12:50,680 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 10:12:50,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 10:12:50,680 INFO L85 PathProgramCache]: Analyzing trace with hash 65788705, now seen corresponding path program 1 times [2024-09-13 10:12:50,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 10:12:50,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673116009] [2024-09-13 10:12:50,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 10:12:50,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 10:12:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 10:12:50,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 10:12:50,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 10:12:50,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673116009] [2024-09-13 10:12:50,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673116009] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-13 10:12:50,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777521903] [2024-09-13 10:12:50,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 10:12:50,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 10:12:50,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 10:12:50,807 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 10:12:50,808 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-13 10:12:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 10:12:50,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-09-13 10:12:50,850 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 10:12:50,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 10:12:50,916 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-13 10:12:50,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 10:12:50,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777521903] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-13 10:12:50,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-13 10:12:50,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-09-13 10:12:50,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009774710] [2024-09-13 10:12:50,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-13 10:12:50,974 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-13 10:12:50,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 10:12:50,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-13 10:12:50,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-09-13 10:12:50,976 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 10:12:51,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 10:12:51,014 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2024-09-13 10:12:51,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-13 10:12:51,015 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-09-13 10:12:51,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 10:12:51,015 INFO L225 Difference]: With dead ends: 16 [2024-09-13 10:12:51,015 INFO L226 Difference]: Without dead ends: 16 [2024-09-13 10:12:51,015 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-09-13 10:12:51,016 INFO L434 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 10:12:51,017 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 26 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 10:12:51,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-09-13 10:12:51,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 14. [2024-09-13 10:12:51,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 10:12:51,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2024-09-13 10:12:51,021 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2024-09-13 10:12:51,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 10:12:51,021 INFO L474 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2024-09-13 10:12:51,022 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 10:12:51,022 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2024-09-13 10:12:51,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-09-13 10:12:51,022 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 10:12:51,023 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-09-13 10:12:51,035 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-13 10:12:51,223 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 10:12:51,224 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 10:12:51,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 10:12:51,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1406269551, now seen corresponding path program 1 times [2024-09-13 10:12:51,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 10:12:51,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907709035] [2024-09-13 10:12:51,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 10:12:51,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 10:12:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 10:12:51,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-13 10:12:51,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 10:12:51,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907709035] [2024-09-13 10:12:51,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907709035] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 10:12:51,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 10:12:51,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-13 10:12:51,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008595541] [2024-09-13 10:12:51,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 10:12:51,318 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-13 10:12:51,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 10:12:51,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-13 10:12:51,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-13 10:12:51,319 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 10:12:51,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 10:12:51,332 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2024-09-13 10:12:51,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-13 10:12:51,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-09-13 10:12:51,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 10:12:51,333 INFO L225 Difference]: With dead ends: 12 [2024-09-13 10:12:51,333 INFO L226 Difference]: Without dead ends: 11 [2024-09-13 10:12:51,334 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-13 10:12:51,335 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 10:12:51,335 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 10:12:51,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-09-13 10:12:51,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-09-13 10:12:51,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 10:12:51,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-09-13 10:12:51,338 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2024-09-13 10:12:51,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 10:12:51,338 INFO L474 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2024-09-13 10:12:51,338 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 10:12:51,338 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-09-13 10:12:51,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-13 10:12:51,338 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 10:12:51,338 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 10:12:51,339 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-13 10:12:51,339 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-09-13 10:12:51,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 10:12:51,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1489657902, now seen corresponding path program 1 times [2024-09-13 10:12:51,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 10:12:51,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925810215] [2024-09-13 10:12:51,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 10:12:51,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 10:12:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 10:12:51,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-13 10:12:51,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 10:12:51,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925810215] [2024-09-13 10:12:51,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925810215] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 10:12:51,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 10:12:51,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-13 10:12:51,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074491450] [2024-09-13 10:12:51,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 10:12:51,402 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-13 10:12:51,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 10:12:51,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-13 10:12:51,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 10:12:51,407 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 10:12:51,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 10:12:51,409 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2024-09-13 10:12:51,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-13 10:12:51,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-09-13 10:12:51,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 10:12:51,411 INFO L225 Difference]: With dead ends: 9 [2024-09-13 10:12:51,411 INFO L226 Difference]: Without dead ends: 0 [2024-09-13 10:12:51,411 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 10:12:51,412 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 10:12:51,415 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 10:12:51,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-13 10:12:51,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-13 10:12:51,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 10:12:51,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-13 10:12:51,415 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2024-09-13 10:12:51,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 10:12:51,416 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-13 10:12:51,416 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 10:12:51,416 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-13 10:12:51,416 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-13 10:12:51,418 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining) [2024-09-13 10:12:51,421 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION (2 of 4 remaining) [2024-09-13 10:12:51,421 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-09-13 10:12:51,421 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONPOST_CONDITION (0 of 4 remaining) [2024-09-13 10:12:51,421 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-13 10:12:51,424 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-09-13 10:12:51,427 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-13 10:12:51,429 INFO L469 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-09-13 10:12:51,429 INFO L470 ceAbstractionStarter]: WitnessConsidered=1 [2024-09-13 10:12:51,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 10:12:51 BoogieIcfgContainer [2024-09-13 10:12:51,431 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-13 10:12:51,432 INFO L158 Benchmark]: Toolchain (without parser) took 1678.32ms. Allocated memory is still 195.0MB. Free memory was 124.2MB in the beginning and 85.7MB in the end (delta: 38.5MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2024-09-13 10:12:51,432 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:12:51,432 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 195.0MB. Free memory was 171.1MB in the beginning and 170.9MB in the end (delta: 200.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:12:51,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.25ms. Allocated memory is still 195.0MB. Free memory was 124.0MB in the beginning and 110.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 10:12:51,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.26ms. Allocated memory is still 195.0MB. Free memory was 110.7MB in the beginning and 109.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 10:12:51,433 INFO L158 Benchmark]: Boogie Preprocessor took 32.10ms. Allocated memory is still 195.0MB. Free memory was 109.3MB in the beginning and 107.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 10:12:51,434 INFO L158 Benchmark]: RCFGBuilder took 246.45ms. Allocated memory is still 195.0MB. Free memory was 107.6MB in the beginning and 157.8MB in the end (delta: -50.1MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2024-09-13 10:12:51,434 INFO L158 Benchmark]: TraceAbstraction took 1175.05ms. Allocated memory is still 195.0MB. Free memory was 157.0MB in the beginning and 85.7MB in the end (delta: 71.3MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2024-09-13 10:12:51,436 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 195.0MB. Free memory was 171.1MB in the beginning and 170.9MB in the end (delta: 200.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.25ms. Allocated memory is still 195.0MB. Free memory was 124.0MB in the beginning and 110.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.26ms. Allocated memory is still 195.0MB. Free memory was 110.7MB in the beginning and 109.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.10ms. Allocated memory is still 195.0MB. Free memory was 109.3MB in the beginning and 107.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 246.45ms. Allocated memory is still 195.0MB. Free memory was 107.6MB in the beginning and 157.8MB in the end (delta: -50.1MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1175.05ms. Allocated memory is still 195.0MB. Free memory was 157.0MB in the beginning and 85.7MB in the end (delta: 71.3MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 30]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 17]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 17]: procedure postcondition always holds For all program executions holds that procedure postcondition always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 31 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 172 SizeOfPredicates, 1 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 4/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-13 10:12:51,457 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/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