./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 53eb964f347d54908ecbd10f35e9b63fbb661e4a7ab55b977edead5834613d23 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 18:34:20,287 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 18:34:20,383 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2024-11-22 18:34:20,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 18:34:20,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 18:34:20,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 18:34:20,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 18:34:20,419 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 18:34:20,419 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 18:34:20,420 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 18:34:20,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 18:34:20,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 18:34:20,420 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 18:34:20,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 18:34:20,421 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 18:34:20,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 18:34:20,423 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 18:34:20,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 18:34:20,425 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 18:34:20,426 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 18:34:20,426 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 18:34:20,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 18:34:20,426 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 18:34:20,427 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 18:34:20,430 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 18:34:20,430 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 18:34:20,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 18:34:20,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 18:34:20,431 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 18:34:20,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 18:34:20,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:34:20,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 18:34:20,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 18:34:20,431 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 18:34:20,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 18:34:20,431 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 18:34:20,432 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 18:34:20,432 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 18:34:20,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 18:34:20,432 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/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53eb964f347d54908ecbd10f35e9b63fbb661e4a7ab55b977edead5834613d23 [2024-11-22 18:34:20,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 18:34:20,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 18:34:20,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 18:34:20,706 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 18:34:20,707 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 18:34:20,708 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-alloca-1.i [2024-11-22 18:34:22,132 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 18:34:22,387 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 18:34:22,388 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/openbsd_cmemrchr-alloca-1.i [2024-11-22 18:34:22,406 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/424488e4f/cde6fc10e64b4a3a97d407ac6a440cae/FLAGd8ed316cc [2024-11-22 18:34:22,420 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/424488e4f/cde6fc10e64b4a3a97d407ac6a440cae [2024-11-22 18:34:22,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 18:34:22,423 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 18:34:22,424 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 18:34:22,424 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 18:34:22,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 18:34:22,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:34:22" (1/1) ... [2024-11-22 18:34:22,431 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c6c91e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:34:22, skipping insertion in model container [2024-11-22 18:34:22,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:34:22" (1/1) ... [2024-11-22 18:34:22,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 18:34:22,713 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:34:22,719 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:34:22,727 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-22 18:34:22,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:34:22,739 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 18:34:22,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:34:22,797 INFO L204 MainTranslator]: Completed translation [2024-11-22 18:34:22,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:34:22 WrapperNode [2024-11-22 18:34:22,798 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 18:34:22,798 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 18:34:22,799 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 18:34:22,799 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 18:34:22,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:34:22" (1/1) ... [2024-11-22 18:34:22,818 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:34:22" (1/1) ... [2024-11-22 18:34:22,833 INFO L138 Inliner]: procedures = 111, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 57 [2024-11-22 18:34:22,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 18:34:22,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 18:34:22,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 18:34:22,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 18:34:22,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:34:22" (1/1) ... [2024-11-22 18:34:22,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:34:22" (1/1) ... [2024-11-22 18:34:22,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:34:22" (1/1) ... [2024-11-22 18:34:22,862 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 0 writes are split as follows [0]. [2024-11-22 18:34:22,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:34:22" (1/1) ... [2024-11-22 18:34:22,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:34:22" (1/1) ... [2024-11-22 18:34:22,866 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:34:22" (1/1) ... [2024-11-22 18:34:22,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:34:22" (1/1) ... [2024-11-22 18:34:22,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:34:22" (1/1) ... [2024-11-22 18:34:22,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:34:22" (1/1) ... [2024-11-22 18:34:22,871 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 18:34:22,872 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 18:34:22,872 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 18:34:22,872 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 18:34:22,873 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:34:22" (1/1) ... [2024-11-22 18:34:22,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:34:22,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:34:22,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 18:34:22,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 18:34:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 18:34:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 18:34:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 18:34:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 18:34:22,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 18:34:23,069 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 18:34:23,070 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 18:34:23,160 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-22 18:34:23,161 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 18:34:23,172 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 18:34:23,172 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 18:34:23,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:34:23 BoogieIcfgContainer [2024-11-22 18:34:23,172 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 18:34:23,174 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 18:34:23,174 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 18:34:23,177 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 18:34:23,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:34:22" (1/3) ... [2024-11-22 18:34:23,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c453d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:34:23, skipping insertion in model container [2024-11-22 18:34:23,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:34:22" (2/3) ... [2024-11-22 18:34:23,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c453d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:34:23, skipping insertion in model container [2024-11-22 18:34:23,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:34:23" (3/3) ... [2024-11-22 18:34:23,179 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cmemrchr-alloca-1.i [2024-11-22 18:34:23,193 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 18:34:23,193 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-22 18:34:23,226 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:34:23,231 INFO L333 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;@191c4a1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:34:23,232 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-22 18:34:23,235 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 15 states have (on average 1.6) internal successors, (24), 18 states have internal predecessors, (24), 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) [2024-11-22 18:34:23,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-22 18:34:23,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:34:23,240 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:34:23,241 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:34:23,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:34:23,246 INFO L85 PathProgramCache]: Analyzing trace with hash 121322254, now seen corresponding path program 1 times [2024-11-22 18:34:23,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:34:23,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192388801] [2024-11-22 18:34:23,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:34:23,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:34:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:34:23,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:23,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:34:23,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192388801] [2024-11-22 18:34:23,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192388801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:34:23,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:34:23,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:34:23,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196783231] [2024-11-22 18:34:23,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:34:23,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:34:23,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:34:23,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:34:23,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:34:23,870 INFO L87 Difference]: Start difference. First operand has 19 states, 15 states have (on average 1.6) internal successors, (24), 18 states have internal predecessors, (24), 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 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2024-11-22 18:34:23,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:34:23,923 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2024-11-22 18:34:23,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:34:23,925 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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 [2024-11-22 18:34:23,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:34:23,929 INFO L225 Difference]: With dead ends: 22 [2024-11-22 18:34:23,929 INFO L226 Difference]: Without dead ends: 20 [2024-11-22 18:34:23,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-22 18:34:23,933 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 9 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:34:23,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 56 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:34:23,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-22 18:34:23,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 16. [2024-11-22 18:34:23,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 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) [2024-11-22 18:34:23,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2024-11-22 18:34:23,956 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 8 [2024-11-22 18:34:23,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:34:23,957 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2024-11-22 18:34:23,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2024-11-22 18:34:23,957 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2024-11-22 18:34:23,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-22 18:34:23,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:34:23,958 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:34:23,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 18:34:23,958 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:34:23,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:34:23,959 INFO L85 PathProgramCache]: Analyzing trace with hash 121322255, now seen corresponding path program 1 times [2024-11-22 18:34:23,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:34:23,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60244354] [2024-11-22 18:34:23,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:34:23,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:34:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:34:24,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:24,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:34:24,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60244354] [2024-11-22 18:34:24,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60244354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:34:24,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:34:24,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:34:24,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859475265] [2024-11-22 18:34:24,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:34:24,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:34:24,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:34:24,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:34:24,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:34:24,127 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2024-11-22 18:34:24,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:34:24,170 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2024-11-22 18:34:24,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:34:24,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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 [2024-11-22 18:34:24,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:34:24,171 INFO L225 Difference]: With dead ends: 20 [2024-11-22 18:34:24,172 INFO L226 Difference]: Without dead ends: 20 [2024-11-22 18:34:24,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:34:24,173 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:34:24,174 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:34:24,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-22 18:34:24,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-22 18:34:24,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 19 states have internal predecessors, (25), 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) [2024-11-22 18:34:24,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2024-11-22 18:34:24,179 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 8 [2024-11-22 18:34:24,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:34:24,180 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2024-11-22 18:34:24,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2024-11-22 18:34:24,180 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-11-22 18:34:24,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-22 18:34:24,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:34:24,181 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:34:24,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 18:34:24,181 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:34:24,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:34:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash 123169297, now seen corresponding path program 1 times [2024-11-22 18:34:24,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:34:24,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705253829] [2024-11-22 18:34:24,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:34:24,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:34:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:34:24,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:24,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:34:24,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705253829] [2024-11-22 18:34:24,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705253829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:34:24,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:34:24,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 18:34:24,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685377915] [2024-11-22 18:34:24,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:34:24,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 18:34:24,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:34:24,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 18:34:24,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-22 18:34:24,452 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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) [2024-11-22 18:34:24,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:34:24,601 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2024-11-22 18:34:24,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 18:34:24,601 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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 [2024-11-22 18:34:24,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:34:24,602 INFO L225 Difference]: With dead ends: 22 [2024-11-22 18:34:24,602 INFO L226 Difference]: Without dead ends: 22 [2024-11-22 18:34:24,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-22 18:34:24,603 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 21 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:34:24,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 63 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:34:24,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-22 18:34:24,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2024-11-22 18:34:24,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 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) [2024-11-22 18:34:24,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2024-11-22 18:34:24,608 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 8 [2024-11-22 18:34:24,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:34:24,609 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-11-22 18:34:24,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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) [2024-11-22 18:34:24,609 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-11-22 18:34:24,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-22 18:34:24,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:34:24,610 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:34:24,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 18:34:24,611 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:34:24,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:34:24,612 INFO L85 PathProgramCache]: Analyzing trace with hash -533240566, now seen corresponding path program 1 times [2024-11-22 18:34:24,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:34:24,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183054592] [2024-11-22 18:34:24,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:34:24,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:34:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:34:24,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:24,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:34:24,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183054592] [2024-11-22 18:34:24,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183054592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:34:24,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:34:24,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:34:24,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617166629] [2024-11-22 18:34:24,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:34:24,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:34:24,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:34:24,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:34:24,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:34:24,674 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2024-11-22 18:34:24,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:34:24,689 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2024-11-22 18:34:24,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:34:24,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 9 [2024-11-22 18:34:24,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:34:24,690 INFO L225 Difference]: With dead ends: 25 [2024-11-22 18:34:24,690 INFO L226 Difference]: Without dead ends: 25 [2024-11-22 18:34:24,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:34:24,692 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 5 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:34:24,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 48 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:34:24,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-22 18:34:24,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2024-11-22 18:34:24,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 19 states have internal predecessors, (24), 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) [2024-11-22 18:34:24,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2024-11-22 18:34:24,698 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 9 [2024-11-22 18:34:24,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:34:24,698 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2024-11-22 18:34:24,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2024-11-22 18:34:24,699 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-11-22 18:34:24,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-22 18:34:24,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:34:24,699 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:34:24,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 18:34:24,700 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:34:24,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:34:24,701 INFO L85 PathProgramCache]: Analyzing trace with hash -475982264, now seen corresponding path program 1 times [2024-11-22 18:34:24,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:34:24,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588423377] [2024-11-22 18:34:24,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:34:24,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:34:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:34:24,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:24,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:34:24,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588423377] [2024-11-22 18:34:24,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588423377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:34:24,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:34:24,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:34:24,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889710834] [2024-11-22 18:34:24,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:34:24,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:34:24,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:34:24,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:34:24,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:34:24,762 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2024-11-22 18:34:24,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:34:24,780 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2024-11-22 18:34:24,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:34:24,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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 9 [2024-11-22 18:34:24,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:34:24,781 INFO L225 Difference]: With dead ends: 23 [2024-11-22 18:34:24,781 INFO L226 Difference]: Without dead ends: 23 [2024-11-22 18:34:24,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:34:24,782 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:34:24,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 40 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:34:24,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-22 18:34:24,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2024-11-22 18:34:24,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 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) [2024-11-22 18:34:24,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2024-11-22 18:34:24,787 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 9 [2024-11-22 18:34:24,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:34:24,788 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2024-11-22 18:34:24,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 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) [2024-11-22 18:34:24,788 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-22 18:34:24,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-22 18:34:24,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:34:24,789 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:34:24,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 18:34:24,789 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:34:24,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:34:24,790 INFO L85 PathProgramCache]: Analyzing trace with hash -2051195727, now seen corresponding path program 1 times [2024-11-22 18:34:24,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:34:24,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573078292] [2024-11-22 18:34:24,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:34:24,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:34:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:34:24,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:24,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:34:24,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573078292] [2024-11-22 18:34:24,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573078292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:34:24,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:34:24,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:34:24,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289791177] [2024-11-22 18:34:24,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:34:24,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:34:24,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:34:24,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:34:24,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:34:24,862 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2024-11-22 18:34:24,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:34:24,873 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2024-11-22 18:34:24,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 18:34:24,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) Word has length 11 [2024-11-22 18:34:24,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:34:24,874 INFO L225 Difference]: With dead ends: 17 [2024-11-22 18:34:24,874 INFO L226 Difference]: Without dead ends: 14 [2024-11-22 18:34:24,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:34:24,875 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:34:24,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 28 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:34:24,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-22 18:34:24,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-22 18:34:24,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 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) [2024-11-22 18:34:24,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2024-11-22 18:34:24,877 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2024-11-22 18:34:24,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:34:24,877 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-11-22 18:34:24,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2024-11-22 18:34:24,878 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-22 18:34:24,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-22 18:34:24,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:34:24,878 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:34:24,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 18:34:24,878 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:34:24,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:34:24,879 INFO L85 PathProgramCache]: Analyzing trace with hash 192315321, now seen corresponding path program 1 times [2024-11-22 18:34:24,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:34:24,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935320771] [2024-11-22 18:34:24,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:34:24,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:34:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:34:24,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:24,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:34:24,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935320771] [2024-11-22 18:34:24,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935320771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:34:24,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:34:24,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:34:24,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981896747] [2024-11-22 18:34:24,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:34:24,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:34:24,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:34:24,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:34:24,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:34:24,947 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2024-11-22 18:34:24,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:34:24,967 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2024-11-22 18:34:24,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:34:24,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2024-11-22 18:34:24,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:34:24,968 INFO L225 Difference]: With dead ends: 21 [2024-11-22 18:34:24,968 INFO L226 Difference]: Without dead ends: 14 [2024-11-22 18:34:24,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:34:24,968 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:34:24,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:34:24,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-22 18:34:24,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-22 18:34:24,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 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) [2024-11-22 18:34:24,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2024-11-22 18:34:24,970 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 13 [2024-11-22 18:34:24,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:34:24,970 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-11-22 18:34:24,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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) [2024-11-22 18:34:24,971 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-22 18:34:24,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-22 18:34:24,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:34:24,971 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:34:24,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 18:34:24,971 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-22 18:34:24,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:34:24,972 INFO L85 PathProgramCache]: Analyzing trace with hash -200711689, now seen corresponding path program 1 times [2024-11-22 18:34:24,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:34:24,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088481339] [2024-11-22 18:34:24,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:34:24,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:34:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:34:25,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:25,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:34:25,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088481339] [2024-11-22 18:34:25,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088481339] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:34:25,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698317573] [2024-11-22 18:34:25,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:34:25,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:34:25,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:34:25,194 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:34:25,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 18:34:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:34:25,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-22 18:34:25,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:34:25,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:25,572 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:34:25,711 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:34:25,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2024-11-22 18:34:25,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:34:25,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698317573] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:34:25,869 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:34:25,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-22 18:34:25,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435756799] [2024-11-22 18:34:25,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:34:25,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-22 18:34:25,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:34:25,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-22 18:34:25,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2024-11-22 18:34:25,872 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 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) [2024-11-22 18:34:26,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:34:26,034 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2024-11-22 18:34:26,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 18:34:26,034 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 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 13 [2024-11-22 18:34:26,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:34:26,034 INFO L225 Difference]: With dead ends: 13 [2024-11-22 18:34:26,035 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 18:34:26,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2024-11-22 18:34:26,035 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:34:26,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 60 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:34:26,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 18:34:26,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 18:34:26,038 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) [2024-11-22 18:34:26,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 18:34:26,038 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2024-11-22 18:34:26,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:34:26,038 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 18:34:26,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 22 states have internal predecessors, (30), 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) [2024-11-22 18:34:26,038 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 18:34:26,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 18:34:26,041 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 3 remaining) [2024-11-22 18:34:26,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 3 remaining) [2024-11-22 18:34:26,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (0 of 3 remaining) [2024-11-22 18:34:26,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 18:34:26,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:34:26,250 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:34:26,251 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 18:34:26,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 06:34:26 BoogieIcfgContainer [2024-11-22 18:34:26,254 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 18:34:26,255 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 18:34:26,255 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 18:34:26,256 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 18:34:26,257 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:34:23" (3/4) ... [2024-11-22 18:34:26,259 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 18:34:26,265 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-22 18:34:26,265 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-22 18:34:26,265 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-22 18:34:26,330 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 18:34:26,333 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 18:34:26,333 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 18:34:26,333 INFO L158 Benchmark]: Toolchain (without parser) took 3909.90ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 155.4MB in the beginning and 171.9MB in the end (delta: -16.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-22 18:34:26,333 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 125.8MB. Free memory was 88.0MB in the beginning and 87.8MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 18:34:26,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.77ms. Allocated memory is still 184.5MB. Free memory was 154.7MB in the beginning and 136.6MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-22 18:34:26,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.67ms. Allocated memory is still 184.5MB. Free memory was 136.6MB in the beginning and 134.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 18:34:26,334 INFO L158 Benchmark]: Boogie Preprocessor took 36.96ms. Allocated memory is still 184.5MB. Free memory was 134.5MB in the beginning and 132.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 18:34:26,334 INFO L158 Benchmark]: RCFGBuilder took 300.59ms. Allocated memory is still 184.5MB. Free memory was 132.4MB in the beginning and 119.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-22 18:34:26,334 INFO L158 Benchmark]: TraceAbstraction took 3080.35ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 119.1MB in the beginning and 176.4MB in the end (delta: -57.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 18:34:26,335 INFO L158 Benchmark]: Witness Printer took 78.10ms. Allocated memory is still 222.3MB. Free memory was 176.4MB in the beginning and 171.9MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 18:34:26,339 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 125.8MB. Free memory was 88.0MB in the beginning and 87.8MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.77ms. Allocated memory is still 184.5MB. Free memory was 154.7MB in the beginning and 136.6MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.67ms. Allocated memory is still 184.5MB. Free memory was 136.6MB in the beginning and 134.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.96ms. Allocated memory is still 184.5MB. Free memory was 134.5MB in the beginning and 132.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 300.59ms. Allocated memory is still 184.5MB. Free memory was 132.4MB in the beginning and 119.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3080.35ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 119.1MB in the beginning and 176.4MB in the end (delta: -57.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 78.10ms. Allocated memory is still 222.3MB. Free memory was 176.4MB in the beginning and 171.9MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. 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: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 561]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 397 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 288 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 259 IncrementalHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 109 mSDtfsCounter, 259 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=2, InterpolantAutomatonStates: 47, 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, 8 MinimizatonAttempts, 18 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 706 SizeOfPredicates, 3 NumberOfNonLiveVariables, 85 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 2/8 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-22 18:34:26,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE