./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/b.17-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/b.17-alloca.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 93cff60adb183fef3af5f3af7541e684acb33c49f5e09dc255d0e19d271c8517 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 17:50:29,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 17:50:29,339 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2024-10-11 17:50:29,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 17:50:29,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 17:50:29,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 17:50:29,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 17:50:29,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 17:50:29,382 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 17:50:29,384 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 17:50:29,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 17:50:29,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 17:50:29,385 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 17:50:29,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 17:50:29,386 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 17:50:29,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 17:50:29,388 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 17:50:29,389 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 17:50:29,389 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 17:50:29,392 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 17:50:29,392 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 17:50:29,393 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 17:50:29,393 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 17:50:29,393 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 17:50:29,394 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 17:50:29,394 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 17:50:29,394 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 17:50:29,395 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 17:50:29,395 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 17:50:29,395 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 17:50:29,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:50:29,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 17:50:29,396 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 17:50:29,396 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 17:50:29,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 17:50:29,397 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 17:50:29,397 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 17:50:29,398 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 17:50:29,398 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 17:50:29,398 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93cff60adb183fef3af5f3af7541e684acb33c49f5e09dc255d0e19d271c8517 [2024-10-11 17:50:29,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 17:50:29,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 17:50:29,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 17:50:29,685 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 17:50:29,686 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 17:50:29,687 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/b.17-alloca.i [2024-10-11 17:50:31,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 17:50:31,386 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 17:50:31,390 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/b.17-alloca.i [2024-10-11 17:50:31,405 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6f3bb9f7c/d2eb25b1314b40aaa3a7da2fc4322775/FLAGd24237b97 [2024-10-11 17:50:31,426 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6f3bb9f7c/d2eb25b1314b40aaa3a7da2fc4322775 [2024-10-11 17:50:31,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 17:50:31,430 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 17:50:31,433 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 17:50:31,433 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 17:50:31,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 17:50:31,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:50:31" (1/1) ... [2024-10-11 17:50:31,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@784e3d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:50:31, skipping insertion in model container [2024-10-11 17:50:31,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 05:50:31" (1/1) ... [2024-10-11 17:50:31,477 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 17:50:31,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:50:31,709 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 17:50:31,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 17:50:31,772 INFO L204 MainTranslator]: Completed translation [2024-10-11 17:50:31,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:50:31 WrapperNode [2024-10-11 17:50:31,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 17:50:31,774 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 17:50:31,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 17:50:31,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 17:50:31,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:50:31" (1/1) ... [2024-10-11 17:50:31,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:50:31" (1/1) ... [2024-10-11 17:50:31,812 INFO L138 Inliner]: procedures = 111, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2024-10-11 17:50:31,813 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 17:50:31,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 17:50:31,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 17:50:31,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 17:50:31,821 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:50:31" (1/1) ... [2024-10-11 17:50:31,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:50:31" (1/1) ... [2024-10-11 17:50:31,823 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:50:31" (1/1) ... [2024-10-11 17:50:31,833 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [4, 4, 3, 2]. 31 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0, 0, 0]. The 6 writes are split as follows [2, 2, 1, 1]. [2024-10-11 17:50:31,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:50:31" (1/1) ... [2024-10-11 17:50:31,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:50:31" (1/1) ... [2024-10-11 17:50:31,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:50:31" (1/1) ... [2024-10-11 17:50:31,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:50:31" (1/1) ... [2024-10-11 17:50:31,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:50:31" (1/1) ... [2024-10-11 17:50:31,848 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:50:31" (1/1) ... [2024-10-11 17:50:31,851 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 17:50:31,852 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 17:50:31,852 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 17:50:31,852 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 17:50:31,853 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:50:31" (1/1) ... [2024-10-11 17:50:31,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 17:50:31,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 17:50:31,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 17:50:31,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 17:50:31,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 17:50:31,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 17:50:31,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 17:50:31,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 17:50:31,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 17:50:31,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 17:50:31,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 17:50:31,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 17:50:31,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 17:50:31,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 17:50:31,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 17:50:31,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 17:50:32,090 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 17:50:32,092 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 17:50:32,364 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2024-10-11 17:50:32,364 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 17:50:32,425 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 17:50:32,425 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 17:50:32,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:50:32 BoogieIcfgContainer [2024-10-11 17:50:32,426 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 17:50:32,428 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 17:50:32,428 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 17:50:32,432 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 17:50:32,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 05:50:31" (1/3) ... [2024-10-11 17:50:32,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c9df35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:50:32, skipping insertion in model container [2024-10-11 17:50:32,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 05:50:31" (2/3) ... [2024-10-11 17:50:32,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c9df35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 05:50:32, skipping insertion in model container [2024-10-11 17:50:32,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:50:32" (3/3) ... [2024-10-11 17:50:32,436 INFO L112 eAbstractionObserver]: Analyzing ICFG b.17-alloca.i [2024-10-11 17:50:32,451 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 17:50:32,452 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2024-10-11 17:50:32,499 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 17:50:32,504 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;@27227d25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 17:50:32,505 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-10-11 17:50:32,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 17 states have (on average 2.823529411764706) internal successors, (48), 44 states have internal predecessors, (48), 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) [2024-10-11 17:50:32,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-11 17:50:32,513 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:50:32,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-11 17:50:32,514 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-10-11 17:50:32,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:50:32,520 INFO L85 PathProgramCache]: Analyzing trace with hash 3290, now seen corresponding path program 1 times [2024-10-11 17:50:32,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:50:32,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448031009] [2024-10-11 17:50:32,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:50:32,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:50:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:50:32,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:50:32,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:50:32,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448031009] [2024-10-11 17:50:32,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448031009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:50:32,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:50:32,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:50:32,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441116490] [2024-10-11 17:50:32,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:50:32,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:50:32,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:50:32,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:50:32,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:50:32,992 INFO L87 Difference]: Start difference. First operand has 45 states, 17 states have (on average 2.823529411764706) internal successors, (48), 44 states have internal predecessors, (48), 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 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-11 17:50:33,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:50:33,058 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2024-10-11 17:50:33,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:50:33,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-10-11 17:50:33,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:50:33,067 INFO L225 Difference]: With dead ends: 41 [2024-10-11 17:50:33,068 INFO L226 Difference]: Without dead ends: 40 [2024-10-11 17:50:33,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:50:33,075 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 34 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 17:50:33,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 14 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 17:50:33,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-10-11 17:50:33,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-10-11 17:50:33,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 17 states have (on average 2.411764705882353) internal successors, (41), 39 states have internal predecessors, (41), 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) [2024-10-11 17:50:33,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2024-10-11 17:50:33,104 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 2 [2024-10-11 17:50:33,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:50:33,104 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2024-10-11 17:50:33,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-11 17:50:33,104 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2024-10-11 17:50:33,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-11 17:50:33,105 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:50:33,105 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-11 17:50:33,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 17:50:33,106 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-10-11 17:50:33,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:50:33,107 INFO L85 PathProgramCache]: Analyzing trace with hash 3291, now seen corresponding path program 1 times [2024-10-11 17:50:33,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:50:33,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820268810] [2024-10-11 17:50:33,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:50:33,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:50:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:50:33,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:50:33,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:50:33,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820268810] [2024-10-11 17:50:33,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820268810] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:50:33,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:50:33,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:50:33,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702654993] [2024-10-11 17:50:33,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:50:33,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:50:33,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:50:33,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:50:33,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:50:33,256 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-11 17:50:33,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:50:33,309 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2024-10-11 17:50:33,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:50:33,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-10-11 17:50:33,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:50:33,311 INFO L225 Difference]: With dead ends: 36 [2024-10-11 17:50:33,311 INFO L226 Difference]: Without dead ends: 36 [2024-10-11 17:50:33,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:50:33,313 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 34 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 17:50:33,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 15 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:50:33,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-10-11 17:50:33,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-10-11 17:50:33,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 17 states have (on average 2.176470588235294) internal successors, (37), 35 states have internal predecessors, (37), 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) [2024-10-11 17:50:33,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2024-10-11 17:50:33,317 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 2 [2024-10-11 17:50:33,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:50:33,318 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2024-10-11 17:50:33,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-11 17:50:33,318 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2024-10-11 17:50:33,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-11 17:50:33,319 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:50:33,319 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-11 17:50:33,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 17:50:33,319 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-10-11 17:50:33,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:50:33,320 INFO L85 PathProgramCache]: Analyzing trace with hash 101966, now seen corresponding path program 1 times [2024-10-11 17:50:33,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:50:33,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753718180] [2024-10-11 17:50:33,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:50:33,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:50:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:50:33,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:50:33,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:50:33,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753718180] [2024-10-11 17:50:33,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753718180] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:50:33,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:50:33,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:50:33,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331728866] [2024-10-11 17:50:33,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:50:33,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:50:33,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:50:33,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:50:33,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:50:33,412 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:50:33,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:50:33,463 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2024-10-11 17:50:33,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:50:33,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-10-11 17:50:33,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:50:33,466 INFO L225 Difference]: With dead ends: 32 [2024-10-11 17:50:33,467 INFO L226 Difference]: Without dead ends: 32 [2024-10-11 17:50:33,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:50:33,470 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 17:50:33,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 10 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:50:33,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-10-11 17:50:33,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-10-11 17:50:33,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 31 states have internal predecessors, (33), 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) [2024-10-11 17:50:33,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2024-10-11 17:50:33,478 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 3 [2024-10-11 17:50:33,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:50:33,479 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2024-10-11 17:50:33,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:50:33,480 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2024-10-11 17:50:33,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-11 17:50:33,480 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:50:33,481 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-11 17:50:33,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 17:50:33,482 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-10-11 17:50:33,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:50:33,483 INFO L85 PathProgramCache]: Analyzing trace with hash 101967, now seen corresponding path program 1 times [2024-10-11 17:50:33,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:50:33,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764869300] [2024-10-11 17:50:33,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:50:33,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:50:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:50:33,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:50:33,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:50:33,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764869300] [2024-10-11 17:50:33,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764869300] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:50:33,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:50:33,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:50:33,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881229854] [2024-10-11 17:50:33,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:50:33,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:50:33,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:50:33,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:50:33,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:50:33,638 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:50:33,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:50:33,686 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2024-10-11 17:50:33,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:50:33,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-10-11 17:50:33,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:50:33,688 INFO L225 Difference]: With dead ends: 28 [2024-10-11 17:50:33,688 INFO L226 Difference]: Without dead ends: 28 [2024-10-11 17:50:33,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:50:33,689 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 25 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 17:50:33,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 11 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:50:33,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-11 17:50:33,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-10-11 17:50:33,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 27 states have internal predecessors, (29), 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) [2024-10-11 17:50:33,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2024-10-11 17:50:33,698 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 3 [2024-10-11 17:50:33,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:50:33,698 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2024-10-11 17:50:33,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:50:33,700 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2024-10-11 17:50:33,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-11 17:50:33,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:50:33,701 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-11 17:50:33,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 17:50:33,701 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-10-11 17:50:33,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:50:33,704 INFO L85 PathProgramCache]: Analyzing trace with hash 3160925, now seen corresponding path program 1 times [2024-10-11 17:50:33,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:50:33,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964075455] [2024-10-11 17:50:33,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:50:33,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:50:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:50:33,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:50:33,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:50:33,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964075455] [2024-10-11 17:50:33,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964075455] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:50:33,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:50:33,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:50:33,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132219484] [2024-10-11 17:50:33,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:50:33,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:50:33,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:50:33,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:50:33,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:50:33,790 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-10-11 17:50:33,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:50:33,835 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2024-10-11 17:50:33,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:50:33,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2024-10-11 17:50:33,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:50:33,837 INFO L225 Difference]: With dead ends: 25 [2024-10-11 17:50:33,837 INFO L226 Difference]: Without dead ends: 25 [2024-10-11 17:50:33,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:50:33,838 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 18 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 17:50:33,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 7 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:50:33,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-10-11 17:50:33,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-10-11 17:50:33,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 24 states have internal predecessors, (26), 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) [2024-10-11 17:50:33,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2024-10-11 17:50:33,845 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 4 [2024-10-11 17:50:33,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:50:33,846 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-10-11 17:50:33,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-10-11 17:50:33,846 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2024-10-11 17:50:33,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-11 17:50:33,847 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:50:33,847 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-11 17:50:33,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 17:50:33,848 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-10-11 17:50:33,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:50:33,850 INFO L85 PathProgramCache]: Analyzing trace with hash 3160926, now seen corresponding path program 1 times [2024-10-11 17:50:33,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:50:33,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861705898] [2024-10-11 17:50:33,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:50:33,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:50:33,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:50:33,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:50:33,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:50:33,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861705898] [2024-10-11 17:50:33,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861705898] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:50:33,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:50:33,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:50:33,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561659190] [2024-10-11 17:50:33,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:50:33,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:50:33,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:50:33,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:50:33,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:50:33,953 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-10-11 17:50:33,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:50:33,983 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2024-10-11 17:50:33,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:50:33,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2024-10-11 17:50:33,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:50:33,986 INFO L225 Difference]: With dead ends: 22 [2024-10-11 17:50:33,986 INFO L226 Difference]: Without dead ends: 22 [2024-10-11 17:50:33,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:50:33,987 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 18 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 17:50:33,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 8 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:50:33,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-10-11 17:50:33,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-10-11 17:50:33,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 21 states have internal predecessors, (23), 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) [2024-10-11 17:50:33,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2024-10-11 17:50:33,993 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 4 [2024-10-11 17:50:33,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:50:33,993 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2024-10-11 17:50:33,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2024-10-11 17:50:33,994 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2024-10-11 17:50:33,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 17:50:33,994 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:50:33,995 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 17:50:33,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 17:50:33,995 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-10-11 17:50:33,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:50:33,996 INFO L85 PathProgramCache]: Analyzing trace with hash 97988657, now seen corresponding path program 1 times [2024-10-11 17:50:33,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:50:33,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182001234] [2024-10-11 17:50:33,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:50:33,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:50:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:50:34,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:50:34,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:50:34,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182001234] [2024-10-11 17:50:34,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182001234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:50:34,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:50:34,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:50:34,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557866524] [2024-10-11 17:50:34,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:50:34,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 17:50:34,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:50:34,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 17:50:34,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 17:50:34,097 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-10-11 17:50:34,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:50:34,144 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2024-10-11 17:50:34,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:50:34,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-11 17:50:34,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:50:34,146 INFO L225 Difference]: With dead ends: 20 [2024-10-11 17:50:34,146 INFO L226 Difference]: Without dead ends: 20 [2024-10-11 17:50:34,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 17:50:34,147 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 17:50:34,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 5 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:50:34,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-10-11 17:50:34,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-10-11 17:50:34,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 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) [2024-10-11 17:50:34,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2024-10-11 17:50:34,150 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 5 [2024-10-11 17:50:34,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:50:34,150 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2024-10-11 17:50:34,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2024-10-11 17:50:34,150 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2024-10-11 17:50:34,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 17:50:34,151 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:50:34,151 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 17:50:34,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 17:50:34,151 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-10-11 17:50:34,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:50:34,152 INFO L85 PathProgramCache]: Analyzing trace with hash 97988658, now seen corresponding path program 1 times [2024-10-11 17:50:34,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:50:34,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560652208] [2024-10-11 17:50:34,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:50:34,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:50:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:50:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:50:34,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:50:34,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560652208] [2024-10-11 17:50:34,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560652208] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:50:34,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:50:34,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 17:50:34,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188234033] [2024-10-11 17:50:34,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:50:34,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 17:50:34,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:50:34,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 17:50:34,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:50:34,224 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-10-11 17:50:34,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:50:34,253 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-10-11 17:50:34,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 17:50:34,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-11 17:50:34,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:50:34,254 INFO L225 Difference]: With dead ends: 18 [2024-10-11 17:50:34,254 INFO L226 Difference]: Without dead ends: 18 [2024-10-11 17:50:34,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 17:50:34,255 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 17:50:34,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:50:34,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-10-11 17:50:34,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-10-11 17:50:34,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 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) [2024-10-11 17:50:34,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2024-10-11 17:50:34,259 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 5 [2024-10-11 17:50:34,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:50:34,260 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2024-10-11 17:50:34,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-10-11 17:50:34,260 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2024-10-11 17:50:34,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-11 17:50:34,260 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 17:50:34,261 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:50:34,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 17:50:34,261 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2024-10-11 17:50:34,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 17:50:34,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1143315393, now seen corresponding path program 1 times [2024-10-11 17:50:34,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 17:50:34,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698996957] [2024-10-11 17:50:34,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 17:50:34,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 17:50:34,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 17:50:34,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 17:50:34,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 17:50:34,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698996957] [2024-10-11 17:50:34,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698996957] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 17:50:34,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 17:50:34,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 17:50:34,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056983930] [2024-10-11 17:50:34,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 17:50:34,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 17:50:34,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 17:50:34,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 17:50:34,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 17:50:34,572 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:50:34,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 17:50:34,619 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2024-10-11 17:50:34,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 17:50:34,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-11 17:50:34,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 17:50:34,620 INFO L225 Difference]: With dead ends: 17 [2024-10-11 17:50:34,621 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 17:50:34,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 17:50:34,621 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 17:50:34,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 8 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 17:50:34,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 17:50:34,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 17:50:34,622 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) [2024-10-11 17:50:34,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 17:50:34,623 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2024-10-11 17:50:34,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 17:50:34,623 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 17:50:34,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 17:50:34,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 17:50:34,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 17:50:34,630 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 27 remaining) [2024-10-11 17:50:34,630 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 27 remaining) [2024-10-11 17:50:34,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 27 remaining) [2024-10-11 17:50:34,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 27 remaining) [2024-10-11 17:50:34,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 27 remaining) [2024-10-11 17:50:34,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 27 remaining) [2024-10-11 17:50:34,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 27 remaining) [2024-10-11 17:50:34,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 27 remaining) [2024-10-11 17:50:34,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 27 remaining) [2024-10-11 17:50:34,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 27 remaining) [2024-10-11 17:50:34,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 27 remaining) [2024-10-11 17:50:34,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 27 remaining) [2024-10-11 17:50:34,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 27 remaining) [2024-10-11 17:50:34,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 27 remaining) [2024-10-11 17:50:34,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 27 remaining) [2024-10-11 17:50:34,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 27 remaining) [2024-10-11 17:50:34,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 27 remaining) [2024-10-11 17:50:34,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 27 remaining) [2024-10-11 17:50:34,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 27 remaining) [2024-10-11 17:50:34,633 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 27 remaining) [2024-10-11 17:50:34,633 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 27 remaining) [2024-10-11 17:50:34,633 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 27 remaining) [2024-10-11 17:50:34,633 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 27 remaining) [2024-10-11 17:50:34,633 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 27 remaining) [2024-10-11 17:50:34,633 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 27 remaining) [2024-10-11 17:50:34,633 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 27 remaining) [2024-10-11 17:50:34,633 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK (0 of 27 remaining) [2024-10-11 17:50:34,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 17:50:34,639 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 17:50:34,644 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 17:50:34,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 05:50:34 BoogieIcfgContainer [2024-10-11 17:50:34,649 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 17:50:34,649 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 17:50:34,649 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 17:50:34,649 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 17:50:34,650 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 05:50:32" (3/4) ... [2024-10-11 17:50:34,652 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 17:50:34,660 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-10-11 17:50:34,661 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-11 17:50:34,661 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 17:50:34,662 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-11 17:50:34,755 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 17:50:34,756 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 17:50:34,756 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 17:50:34,757 INFO L158 Benchmark]: Toolchain (without parser) took 3326.99ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 102.8MB in the beginning and 98.9MB in the end (delta: 3.9MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2024-10-11 17:50:34,757 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 159.4MB. Free memory is still 118.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 17:50:34,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.11ms. Allocated memory is still 159.4MB. Free memory was 102.4MB in the beginning and 84.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-11 17:50:34,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.71ms. Allocated memory is still 159.4MB. Free memory was 84.5MB in the beginning and 82.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:50:34,758 INFO L158 Benchmark]: Boogie Preprocessor took 37.78ms. Allocated memory is still 159.4MB. Free memory was 82.8MB in the beginning and 80.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 17:50:34,758 INFO L158 Benchmark]: RCFGBuilder took 574.17ms. Allocated memory is still 159.4MB. Free memory was 80.3MB in the beginning and 121.3MB in the end (delta: -41.0MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2024-10-11 17:50:34,759 INFO L158 Benchmark]: TraceAbstraction took 2220.42ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 121.3MB in the beginning and 104.2MB in the end (delta: 17.2MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. [2024-10-11 17:50:34,759 INFO L158 Benchmark]: Witness Printer took 107.24ms. Allocated memory is still 201.3MB. Free memory was 104.2MB in the beginning and 98.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 17:50:34,761 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 159.4MB. Free memory is still 118.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.11ms. Allocated memory is still 159.4MB. Free memory was 102.4MB in the beginning and 84.5MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.71ms. Allocated memory is still 159.4MB. Free memory was 84.5MB in the beginning and 82.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.78ms. Allocated memory is still 159.4MB. Free memory was 82.8MB in the beginning and 80.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 574.17ms. Allocated memory is still 159.4MB. Free memory was 80.3MB in the beginning and 121.3MB in the end (delta: -41.0MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2220.42ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 121.3MB in the beginning and 104.2MB in the end (delta: 17.2MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. * Witness Printer took 107.24ms. Allocated memory is still 201.3MB. Free memory was 104.2MB in the beginning and 98.9MB in the end (delta: 5.2MB). 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: -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: -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: -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: -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: -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: -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: -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: -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: -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: -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: -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: -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: 565]: 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, 45 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 205 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 205 mSDsluCounter, 84 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 216 IncrementalHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 76 mSDtfsCounter, 216 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 28, 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 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 27 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-11 17:50:34,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE