./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/mine2017-ex4.7.i --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 04d6fb36 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/AutomizerReach.xml -i ../sv-benchmarks/c/loop-lit/mine2017-ex4.7.i -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 51cb0ed4f3a380cdd7ae4c472320ddbca58dabad2572a56f851358e7417ed040 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-04d6fb3-m [2024-09-15 18:44:17,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-15 18:44:17,986 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-15 18:44:17,992 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-15 18:44:17,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-15 18:44:18,015 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-15 18:44:18,015 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-15 18:44:18,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-15 18:44:18,016 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-15 18:44:18,016 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-15 18:44:18,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-15 18:44:18,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-15 18:44:18,020 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-15 18:44:18,020 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-15 18:44:18,020 INFO L153 SettingsManager]: * Use SBE=true [2024-09-15 18:44:18,022 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-15 18:44:18,022 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-15 18:44:18,023 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-15 18:44:18,023 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-15 18:44:18,023 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-15 18:44:18,023 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-15 18:44:18,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-15 18:44:18,027 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-15 18:44:18,027 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-15 18:44:18,028 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-15 18:44:18,028 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-15 18:44:18,028 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-15 18:44:18,028 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-15 18:44:18,029 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-15 18:44:18,029 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-15 18:44:18,029 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-15 18:44:18,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-15 18:44:18,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 18:44:18,035 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-15 18:44:18,035 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-15 18:44:18,036 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-15 18:44:18,036 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-15 18:44:18,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-15 18:44:18,038 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-15 18:44:18,038 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-15 18:44:18,038 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-15 18:44:18,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-15 18:44:18,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51cb0ed4f3a380cdd7ae4c472320ddbca58dabad2572a56f851358e7417ed040 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 [2024-09-15 18:44:18,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-15 18:44:18,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-15 18:44:18,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-15 18:44:18,395 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-15 18:44:18,396 INFO L274 PluginConnector]: CDTParser initialized [2024-09-15 18:44:18,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-lit/mine2017-ex4.7.i [2024-09-15 18:44:19,964 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-15 18:44:20,163 INFO L384 CDTParser]: Found 1 translation units. [2024-09-15 18:44:20,164 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/mine2017-ex4.7.i [2024-09-15 18:44:20,171 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/ea71852c7/66449a00164c4753b81a7cf8e257cd2f/FLAG5e0ed381f [2024-09-15 18:44:20,545 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/ea71852c7/66449a00164c4753b81a7cf8e257cd2f [2024-09-15 18:44:20,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-15 18:44:20,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-15 18:44:20,551 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-15 18:44:20,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-15 18:44:20,558 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-15 18:44:20,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 06:44:20" (1/1) ... [2024-09-15 18:44:20,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a78b6e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:44:20, skipping insertion in model container [2024-09-15 18:44:20,560 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 06:44:20" (1/1) ... [2024-09-15 18:44:20,576 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-15 18:44:20,723 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-lit/mine2017-ex4.7.i[812,825] [2024-09-15 18:44:20,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 18:44:20,753 INFO L200 MainTranslator]: Completed pre-run [2024-09-15 18:44:20,773 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-lit/mine2017-ex4.7.i[812,825] [2024-09-15 18:44:20,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 18:44:20,794 INFO L204 MainTranslator]: Completed translation [2024-09-15 18:44:20,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:44:20 WrapperNode [2024-09-15 18:44:20,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-15 18:44:20,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-15 18:44:20,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-15 18:44:20,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-15 18:44:20,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:44:20" (1/1) ... [2024-09-15 18:44:20,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:44:20" (1/1) ... [2024-09-15 18:44:20,815 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-15 18:44:20,816 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-15 18:44:20,816 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-15 18:44:20,816 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-15 18:44:20,817 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-15 18:44:20,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:44:20" (1/1) ... [2024-09-15 18:44:20,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:44:20" (1/1) ... [2024-09-15 18:44:20,827 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:44:20" (1/1) ... [2024-09-15 18:44:20,841 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]. [2024-09-15 18:44:20,841 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:44:20" (1/1) ... [2024-09-15 18:44:20,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:44:20" (1/1) ... [2024-09-15 18:44:20,844 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:44:20" (1/1) ... [2024-09-15 18:44:20,846 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:44:20" (1/1) ... [2024-09-15 18:44:20,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:44:20" (1/1) ... [2024-09-15 18:44:20,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:44:20" (1/1) ... [2024-09-15 18:44:20,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-15 18:44:20,850 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-15 18:44:20,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-15 18:44:20,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-15 18:44:20,851 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:44:20" (1/1) ... [2024-09-15 18:44:20,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 18:44:20,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-15 18:44:20,886 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) [2024-09-15 18:44:20,889 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 [2024-09-15 18:44:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-15 18:44:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-15 18:44:20,935 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-15 18:44:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-15 18:44:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-15 18:44:20,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-15 18:44:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-15 18:44:20,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-15 18:44:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-15 18:44:20,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-15 18:44:20,990 INFO L242 CfgBuilder]: Building ICFG [2024-09-15 18:44:20,992 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-15 18:44:21,138 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-09-15 18:44:21,139 INFO L291 CfgBuilder]: Performing block encoding [2024-09-15 18:44:21,167 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-15 18:44:21,167 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-15 18:44:21,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 06:44:21 BoogieIcfgContainer [2024-09-15 18:44:21,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-15 18:44:21,171 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-15 18:44:21,171 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-15 18:44:21,174 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-15 18:44:21,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 06:44:20" (1/3) ... [2024-09-15 18:44:21,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be56733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 06:44:21, skipping insertion in model container [2024-09-15 18:44:21,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 06:44:20" (2/3) ... [2024-09-15 18:44:21,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be56733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 06:44:21, skipping insertion in model container [2024-09-15 18:44:21,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 06:44:21" (3/3) ... [2024-09-15 18:44:21,177 INFO L112 eAbstractionObserver]: Analyzing ICFG mine2017-ex4.7.i [2024-09-15 18:44:21,194 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-15 18:44:21,194 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-15 18:44:21,268 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-15 18:44:21,276 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=All, 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;@67e145bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-15 18:44:21,279 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-15 18:44:21,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-09-15 18:44:21,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-15 18:44:21,290 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 18:44:21,290 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 18:44:21,291 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 18:44:21,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 18:44:21,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1562450605, now seen corresponding path program 1 times [2024-09-15 18:44:21,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 18:44:21,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039665450] [2024-09-15 18:44:21,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 18:44:21,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 18:44:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 18:44:21,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-15 18:44:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 18:44:21,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 18:44:21,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 18:44:21,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039665450] [2024-09-15 18:44:21,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039665450] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 18:44:21,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 18:44:21,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-15 18:44:21,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101303750] [2024-09-15 18:44:21,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 18:44:21,607 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-15 18:44:21,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 18:44:21,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-15 18:44:21,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-15 18:44:21,634 INFO L87 Difference]: Start difference. First operand has 22 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 18:44:21,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 18:44:21,717 INFO L93 Difference]: Finished difference Result 43 states and 55 transitions. [2024-09-15 18:44:21,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-15 18:44:21,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-09-15 18:44:21,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 18:44:21,725 INFO L225 Difference]: With dead ends: 43 [2024-09-15 18:44:21,726 INFO L226 Difference]: Without dead ends: 22 [2024-09-15 18:44:21,728 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-15 18:44:21,735 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-15 18:44:21,736 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 59 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-15 18:44:21,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-09-15 18:44:21,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-09-15 18:44:21,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-15 18:44:21,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2024-09-15 18:44:21,773 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 11 [2024-09-15 18:44:21,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 18:44:21,773 INFO L474 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2024-09-15 18:44:21,773 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-15 18:44:21,774 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 18:44:21,774 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2024-09-15 18:44:21,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-15 18:44:21,775 INFO L208 NwaCegarLoop]: Found error trace [2024-09-15 18:44:21,775 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-15 18:44:21,776 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-15 18:44:21,776 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-15 18:44:21,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 18:44:21,777 INFO L85 PathProgramCache]: Analyzing trace with hash -548977710, now seen corresponding path program 1 times [2024-09-15 18:44:21,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-15 18:44:21,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376322607] [2024-09-15 18:44:21,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-15 18:44:21,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-15 18:44:21,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 18:44:21,921 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-15 18:44:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 18:44:21,931 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-09-15 18:44:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-15 18:44:21,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-15 18:44:21,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-15 18:44:21,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376322607] [2024-09-15 18:44:21,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376322607] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-15 18:44:21,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-15 18:44:21,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-15 18:44:21,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554589713] [2024-09-15 18:44:21,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-15 18:44:21,946 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-15 18:44:21,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-15 18:44:21,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-15 18:44:21,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-15 18:44:21,947 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-15 18:44:21,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-15 18:44:21,999 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2024-09-15 18:44:21,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-15 18:44:22,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2024-09-15 18:44:22,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-15 18:44:22,000 INFO L225 Difference]: With dead ends: 22 [2024-09-15 18:44:22,000 INFO L226 Difference]: Without dead ends: 0 [2024-09-15 18:44:22,001 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-15 18:44:22,003 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-15 18:44:22,004 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 54 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-15 18:44:22,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-15 18:44:22,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-15 18:44:22,006 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) [2024-09-15 18:44:22,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-15 18:44:22,006 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2024-09-15 18:44:22,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-15 18:44:22,007 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-15 18:44:22,007 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-15 18:44:22,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-15 18:44:22,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-15 18:44:22,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-15 18:44:22,010 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-15 18:44:22,011 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-15 18:44:22,017 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-15 18:44:22,019 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-15 18:44:22,110 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-15 18:44:22,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 06:44:22 BoogieIcfgContainer [2024-09-15 18:44:22,129 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-15 18:44:22,129 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-15 18:44:22,129 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-15 18:44:22,130 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-15 18:44:22,130 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 06:44:21" (3/4) ... [2024-09-15 18:44:22,132 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-15 18:44:22,135 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-15 18:44:22,135 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-15 18:44:22,135 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-15 18:44:22,138 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-09-15 18:44:22,139 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-09-15 18:44:22,139 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-15 18:44:22,139 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-15 18:44:22,236 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-15 18:44:22,237 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-15 18:44:22,237 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-15 18:44:22,238 INFO L158 Benchmark]: Toolchain (without parser) took 1687.86ms. Allocated memory is still 71.3MB. Free memory was 39.6MB in the beginning and 47.1MB in the end (delta: -7.5MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2024-09-15 18:44:22,239 INFO L158 Benchmark]: CDTParser took 1.45ms. Allocated memory is still 56.6MB. Free memory is still 31.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 18:44:22,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.89ms. Allocated memory is still 71.3MB. Free memory was 39.4MB in the beginning and 46.2MB in the end (delta: -6.8MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-09-15 18:44:22,239 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.24ms. Allocated memory is still 71.3MB. Free memory was 46.2MB in the beginning and 45.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 18:44:22,240 INFO L158 Benchmark]: Boogie Preprocessor took 33.22ms. Allocated memory is still 71.3MB. Free memory was 45.1MB in the beginning and 43.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-15 18:44:22,240 INFO L158 Benchmark]: RCFGBuilder took 318.13ms. Allocated memory is still 71.3MB. Free memory was 43.3MB in the beginning and 32.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-15 18:44:22,240 INFO L158 Benchmark]: TraceAbstraction took 957.88ms. Allocated memory is still 71.3MB. Free memory was 31.5MB in the beginning and 29.7MB in the end (delta: 1.9MB). Peak memory consumption was 26.2kB. Max. memory is 16.1GB. [2024-09-15 18:44:22,240 INFO L158 Benchmark]: Witness Printer took 107.96ms. Allocated memory is still 71.3MB. Free memory was 29.3MB in the beginning and 47.1MB in the end (delta: -17.7MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2024-09-15 18:44:22,246 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.45ms. Allocated memory is still 56.6MB. Free memory is still 31.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.89ms. Allocated memory is still 71.3MB. Free memory was 39.4MB in the beginning and 46.2MB in the end (delta: -6.8MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.24ms. Allocated memory is still 71.3MB. Free memory was 46.2MB in the beginning and 45.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.22ms. Allocated memory is still 71.3MB. Free memory was 45.1MB in the beginning and 43.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 318.13ms. Allocated memory is still 71.3MB. Free memory was 43.3MB in the beginning and 32.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 957.88ms. Allocated memory is still 71.3MB. Free memory was 31.5MB in the beginning and 29.7MB in the end (delta: 1.9MB). Peak memory consumption was 26.2kB. Max. memory is 16.1GB. * Witness Printer took 107.96ms. Allocated memory is still 71.3MB. Free memory was 29.3MB in the beginning and 47.1MB in the end (delta: -17.7MB). Peak memory consumption was 4.3MB. 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: 13]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 34 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 57 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 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 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((0 <= x) && (x <= 40)) - ProcedureContractResult [Line: 13]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (\old(cond) != 0) Ensures: (\old(cond) != 0) RESULT: Ultimate proved your program to be correct! [2024-09-15 18:44:22,275 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