./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/getNumbers3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/getNumbers3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c522d46e2ef8c6f97d600bd7187aa9b442df29a1c9828e86387b1c78c18556ba --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 17:58:43,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 17:58:43,270 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 17:58:43,278 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 17:58:43,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 17:58:43,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 17:58:43,322 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 17:58:43,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 17:58:43,323 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 17:58:43,325 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 17:58:43,325 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 17:58:43,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 17:58:43,326 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 17:58:43,327 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 17:58:43,327 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 17:58:43,329 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 17:58:43,330 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 17:58:43,330 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 17:58:43,331 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 17:58:43,331 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 17:58:43,331 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 17:58:43,333 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 17:58:43,337 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 17:58:43,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 17:58:43,338 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 17:58:43,338 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 17:58:43,338 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 17:58:43,338 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 17:58:43,339 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 17:58:43,339 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 17:58:43,339 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 17:58:43,340 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 17:58:43,340 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 17:58:43,340 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:58:43,340 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 17:58:43,341 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 17:58:43,342 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 17:58:43,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 17:58:43,343 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 17:58:43,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 17:58:43,343 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 17:58:43,344 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 17:58:43,344 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c522d46e2ef8c6f97d600bd7187aa9b442df29a1c9828e86387b1c78c18556ba [2024-10-14 17:58:43,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 17:58:43,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 17:58:43,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 17:58:43,625 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 17:58:43,626 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 17:58:43,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/getNumbers3.c [2024-10-14 17:58:45,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 17:58:45,334 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 17:58:45,335 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/getNumbers3.c [2024-10-14 17:58:45,344 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f3cbfafa/b57a70ca83a44af7a7324b9416cedde1/FLAGc815cd1d7 [2024-10-14 17:58:45,364 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f3cbfafa/b57a70ca83a44af7a7324b9416cedde1 [2024-10-14 17:58:45,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 17:58:45,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 17:58:45,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 17:58:45,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 17:58:45,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 17:58:45,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:58:45" (1/1) ... [2024-10-14 17:58:45,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@491141c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:58:45, skipping insertion in model container [2024-10-14 17:58:45,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:58:45" (1/1) ... [2024-10-14 17:58:45,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 17:58:45,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:58:45,558 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 17:58:45,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 17:58:45,629 INFO L204 MainTranslator]: Completed translation [2024-10-14 17:58:45,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:58:45 WrapperNode [2024-10-14 17:58:45,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 17:58:45,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 17:58:45,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 17:58:45,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 17:58:45,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:58:45" (1/1) ... [2024-10-14 17:58:45,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:58:45" (1/1) ... [2024-10-14 17:58:45,716 INFO L138 Inliner]: procedures = 8, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2024-10-14 17:58:45,717 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 17:58:45,719 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 17:58:45,719 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 17:58:45,719 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 17:58:45,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:58:45" (1/1) ... [2024-10-14 17:58:45,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:58:45" (1/1) ... [2024-10-14 17:58:45,731 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:58:45" (1/1) ... [2024-10-14 17:58:45,745 INFO L175 MemorySlicer]: Split 3 memory accesses to 1 slices as follows [3]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 3 writes are split as follows [3]. [2024-10-14 17:58:45,746 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:58:45" (1/1) ... [2024-10-14 17:58:45,746 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:58:45" (1/1) ... [2024-10-14 17:58:45,753 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:58:45" (1/1) ... [2024-10-14 17:58:45,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:58:45" (1/1) ... [2024-10-14 17:58:45,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:58:45" (1/1) ... [2024-10-14 17:58:45,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:58:45" (1/1) ... [2024-10-14 17:58:45,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 17:58:45,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 17:58:45,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 17:58:45,766 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 17:58:45,767 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:58:45" (1/1) ... [2024-10-14 17:58:45,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 17:58:45,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:58:45,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 17:58:45,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 17:58:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 17:58:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 17:58:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 17:58:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 17:58:45,929 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 17:58:45,931 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 17:58:46,043 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-10-14 17:58:46,044 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 17:58:46,076 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 17:58:46,077 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 17:58:46,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:58:46 BoogieIcfgContainer [2024-10-14 17:58:46,077 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 17:58:46,080 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 17:58:46,080 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 17:58:46,084 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 17:58:46,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:58:45" (1/3) ... [2024-10-14 17:58:46,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e1e7e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:58:46, skipping insertion in model container [2024-10-14 17:58:46,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:58:45" (2/3) ... [2024-10-14 17:58:46,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e1e7e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:58:46, skipping insertion in model container [2024-10-14 17:58:46,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:58:46" (3/3) ... [2024-10-14 17:58:46,088 INFO L112 eAbstractionObserver]: Analyzing ICFG getNumbers3.c [2024-10-14 17:58:46,107 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 17:58:46,108 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-10-14 17:58:46,150 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 17:58:46,156 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;@28329092, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 17:58:46,157 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-14 17:58:46,161 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:58:46,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-14 17:58:46,166 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 17:58:46,166 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-14 17:58:46,167 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 2 more)] === [2024-10-14 17:58:46,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:58:46,172 INFO L85 PathProgramCache]: Analyzing trace with hash 58943, now seen corresponding path program 1 times [2024-10-14 17:58:46,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:58:46,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004250301] [2024-10-14 17:58:46,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:58:46,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:58:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:58:46,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:58:46,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:58:46,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004250301] [2024-10-14 17:58:46,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004250301] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:58:46,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:58:46,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 17:58:46,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400014596] [2024-10-14 17:58:46,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:58:46,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:58:46,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:58:46,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:58:46,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:58:46,521 INFO L87 Difference]: Start difference. First operand has 12 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2024-10-14 17:58:46,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 17:58:46,563 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2024-10-14 17:58:46,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:58:46,569 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 [2024-10-14 17:58:46,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 17:58:46,584 INFO L225 Difference]: With dead ends: 11 [2024-10-14 17:58:46,585 INFO L226 Difference]: Without dead ends: 10 [2024-10-14 17:58:46,589 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 [2024-10-14 17:58:46,593 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 17:58:46,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 17:58:46,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-10-14 17:58:46,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-10-14 17:58:46,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 9 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) [2024-10-14 17:58:46,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-10-14 17:58:46,624 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 3 [2024-10-14 17:58:46,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 17:58:46,625 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2024-10-14 17:58:46,625 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) [2024-10-14 17:58:46,626 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-10-14 17:58:46,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-14 17:58:46,626 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 17:58:46,627 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-14 17:58:46,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 17:58:46,628 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 2 more)] === [2024-10-14 17:58:46,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:58:46,629 INFO L85 PathProgramCache]: Analyzing trace with hash 58944, now seen corresponding path program 1 times [2024-10-14 17:58:46,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:58:46,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936452040] [2024-10-14 17:58:46,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:58:46,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:58:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:58:46,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:58:46,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:58:46,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936452040] [2024-10-14 17:58:46,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936452040] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:58:46,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:58:46,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 17:58:46,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73654160] [2024-10-14 17:58:46,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:58:46,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:58:46,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:58:46,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:58:46,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:58:46,789 INFO L87 Difference]: Start difference. First operand 10 states and 10 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) [2024-10-14 17:58:46,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 17:58:46,822 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2024-10-14 17:58:46,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:58:46,823 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 [2024-10-14 17:58:46,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 17:58:46,824 INFO L225 Difference]: With dead ends: 12 [2024-10-14 17:58:46,824 INFO L226 Difference]: Without dead ends: 12 [2024-10-14 17:58:46,824 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 [2024-10-14 17:58:46,826 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 17:58:46,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 17:58:46,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-10-14 17:58:46,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-10-14 17:58:46,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.5) internal successors, (12), 11 states have internal predecessors, (12), 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) [2024-10-14 17:58:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-10-14 17:58:46,831 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 3 [2024-10-14 17:58:46,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 17:58:46,832 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-10-14 17:58:46,832 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) [2024-10-14 17:58:46,832 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-10-14 17:58:46,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-14 17:58:46,833 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 17:58:46,833 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1] [2024-10-14 17:58:46,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 17:58:46,834 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 2 more)] === [2024-10-14 17:58:46,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:58:46,834 INFO L85 PathProgramCache]: Analyzing trace with hash 56665688, now seen corresponding path program 1 times [2024-10-14 17:58:46,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:58:46,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483048988] [2024-10-14 17:58:46,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:58:46,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:58:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:58:47,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:58:47,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:58:47,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483048988] [2024-10-14 17:58:47,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483048988] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:58:47,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046022051] [2024-10-14 17:58:47,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:58:47,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:58:47,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:58:47,070 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:58:47,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 17:58:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:58:47,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-14 17:58:47,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:58:47,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:58:47,258 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:58:47,394 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:58:47,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046022051] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:58:47,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:58:47,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 2, 2] total 7 [2024-10-14 17:58:47,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514275060] [2024-10-14 17:58:47,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:58:47,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 17:58:47,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:58:47,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 17:58:47,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-14 17:58:47,401 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:58:47,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 17:58:47,539 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2024-10-14 17:58:47,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 17:58:47,541 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-14 17:58:47,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 17:58:47,542 INFO L225 Difference]: With dead ends: 16 [2024-10-14 17:58:47,542 INFO L226 Difference]: Without dead ends: 16 [2024-10-14 17:58:47,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-10-14 17:58:47,544 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 17:58:47,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 17:58:47,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-10-14 17:58:47,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-10-14 17:58:47,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:58:47,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-10-14 17:58:47,553 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2024-10-14 17:58:47,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 17:58:47,554 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-10-14 17:58:47,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:58:47,554 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-10-14 17:58:47,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-14 17:58:47,555 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 17:58:47,555 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1] [2024-10-14 17:58:47,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 17:58:47,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:58:47,760 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 2 more)] === [2024-10-14 17:58:47,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:58:47,761 INFO L85 PathProgramCache]: Analyzing trace with hash -96973758, now seen corresponding path program 1 times [2024-10-14 17:58:47,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:58:47,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002478986] [2024-10-14 17:58:47,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:58:47,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:58:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:58:47,852 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-14 17:58:47,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:58:47,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002478986] [2024-10-14 17:58:47,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002478986] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:58:47,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:58:47,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 17:58:47,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711874298] [2024-10-14 17:58:47,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:58:47,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 17:58:47,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:58:47,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 17:58:47,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 17:58:47,855 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:58:47,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 17:58:47,887 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-10-14 17:58:47,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 17:58:47,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-14 17:58:47,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 17:58:47,891 INFO L225 Difference]: With dead ends: 15 [2024-10-14 17:58:47,891 INFO L226 Difference]: Without dead ends: 15 [2024-10-14 17:58:47,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 17:58:47,893 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 17:58:47,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 17:58:47,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-10-14 17:58:47,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-10-14 17:58:47,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:58:47,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-10-14 17:58:47,897 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2024-10-14 17:58:47,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 17:58:47,897 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-10-14 17:58:47,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:58:47,898 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-10-14 17:58:47,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-14 17:58:47,898 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 17:58:47,898 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1] [2024-10-14 17:58:47,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 17:58:47,899 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 2 more)] === [2024-10-14 17:58:47,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:58:47,900 INFO L85 PathProgramCache]: Analyzing trace with hash -96973757, now seen corresponding path program 1 times [2024-10-14 17:58:47,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:58:47,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670804924] [2024-10-14 17:58:47,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:58:47,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:58:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:58:47,992 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:58:47,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:58:47,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670804924] [2024-10-14 17:58:47,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670804924] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 17:58:47,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651243787] [2024-10-14 17:58:47,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:58:47,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:58:47,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 17:58:47,996 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 17:58:47,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 17:58:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:58:48,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 17:58:48,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 17:58:48,083 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:58:48,083 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 17:58:48,156 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 17:58:48,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651243787] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 17:58:48,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 17:58:48,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-10-14 17:58:48,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063295108] [2024-10-14 17:58:48,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 17:58:48,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 17:58:48,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:58:48,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 17:58:48,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:58:48,160 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:58:48,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 17:58:48,228 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2024-10-14 17:58:48,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 17:58:48,231 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-14 17:58:48,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 17:58:48,231 INFO L225 Difference]: With dead ends: 27 [2024-10-14 17:58:48,232 INFO L226 Difference]: Without dead ends: 27 [2024-10-14 17:58:48,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-10-14 17:58:48,233 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 17:58:48,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 17:58:48,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-10-14 17:58:48,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-10-14 17:58:48,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.08) internal successors, (27), 26 states have internal predecessors, (27), 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) [2024-10-14 17:58:48,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2024-10-14 17:58:48,242 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 12 [2024-10-14 17:58:48,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 17:58:48,242 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2024-10-14 17:58:48,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 17:58:48,243 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2024-10-14 17:58:48,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-14 17:58:48,244 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 17:58:48,244 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1] [2024-10-14 17:58:48,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 17:58:48,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 17:58:48,446 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 2 more)] === [2024-10-14 17:58:48,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:58:48,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1328867251, now seen corresponding path program 2 times [2024-10-14 17:58:48,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:58:48,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447636007] [2024-10-14 17:58:48,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:58:48,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:58:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:58:48,635 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-10-14 17:58:48,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:58:48,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447636007] [2024-10-14 17:58:48,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447636007] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:58:48,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:58:48,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 17:58:48,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960029392] [2024-10-14 17:58:48,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:58:48,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 17:58:48,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:58:48,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 17:58:48,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 17:58:48,639 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-10-14 17:58:48,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 17:58:48,659 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2024-10-14 17:58:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 17:58:48,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 24 [2024-10-14 17:58:48,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 17:58:48,661 INFO L225 Difference]: With dead ends: 26 [2024-10-14 17:58:48,661 INFO L226 Difference]: Without dead ends: 26 [2024-10-14 17:58:48,661 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 [2024-10-14 17:58:48,662 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 17:58:48,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 17:58:48,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-10-14 17:58:48,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-10-14 17:58:48,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.04) internal successors, (26), 25 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) [2024-10-14 17:58:48,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2024-10-14 17:58:48,666 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 24 [2024-10-14 17:58:48,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 17:58:48,666 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2024-10-14 17:58:48,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-10-14 17:58:48,667 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2024-10-14 17:58:48,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-14 17:58:48,667 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 17:58:48,667 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1] [2024-10-14 17:58:48,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 17:58:48,668 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 2 more)] === [2024-10-14 17:58:48,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 17:58:48,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1754787873, now seen corresponding path program 1 times [2024-10-14 17:58:48,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 17:58:48,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137491417] [2024-10-14 17:58:48,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 17:58:48,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 17:58:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 17:58:48,704 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-10-14 17:58:48,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 17:58:48,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137491417] [2024-10-14 17:58:48,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137491417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 17:58:48,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 17:58:48,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 17:58:48,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191491521] [2024-10-14 17:58:48,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 17:58:48,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 17:58:48,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 17:58:48,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 17:58:48,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 17:58:48,707 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-14 17:58:48,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 17:58:48,714 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2024-10-14 17:58:48,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 17:58:48,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 25 [2024-10-14 17:58:48,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 17:58:48,715 INFO L225 Difference]: With dead ends: 25 [2024-10-14 17:58:48,715 INFO L226 Difference]: Without dead ends: 0 [2024-10-14 17:58:48,715 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 [2024-10-14 17:58:48,716 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 17:58:48,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 17:58:48,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-14 17:58:48,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-14 17:58:48,717 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) [2024-10-14 17:58:48,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-14 17:58:48,718 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2024-10-14 17:58:48,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 17:58:48,718 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-14 17:58:48,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-14 17:58:48,718 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-14 17:58:48,718 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-14 17:58:48,721 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 5 remaining) [2024-10-14 17:58:48,721 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2024-10-14 17:58:48,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2024-10-14 17:58:48,729 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 5 remaining) [2024-10-14 17:58:48,729 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (0 of 5 remaining) [2024-10-14 17:58:48,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 17:58:48,732 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-10-14 17:58:48,734 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 17:58:48,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:58:48 BoogieIcfgContainer [2024-10-14 17:58:48,737 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 17:58:48,740 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 17:58:48,740 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 17:58:48,741 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 17:58:48,741 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:58:46" (3/4) ... [2024-10-14 17:58:48,743 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 17:58:48,750 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-14 17:58:48,751 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-14 17:58:48,751 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-14 17:58:48,752 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 17:58:48,835 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 17:58:48,835 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 17:58:48,835 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 17:58:48,836 INFO L158 Benchmark]: Toolchain (without parser) took 3467.03ms. Allocated memory was 148.9MB in the beginning and 211.8MB in the end (delta: 62.9MB). Free memory was 81.1MB in the beginning and 178.9MB in the end (delta: -97.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 17:58:48,836 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 148.9MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 17:58:48,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.73ms. Allocated memory is still 148.9MB. Free memory was 80.9MB in the beginning and 120.2MB in the end (delta: -39.2MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2024-10-14 17:58:48,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.35ms. Allocated memory is still 148.9MB. Free memory was 120.2MB in the beginning and 118.6MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 17:58:48,838 INFO L158 Benchmark]: Boogie Preprocessor took 44.68ms. Allocated memory is still 148.9MB. Free memory was 118.6MB in the beginning and 117.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 17:58:48,838 INFO L158 Benchmark]: RCFGBuilder took 313.05ms. Allocated memory is still 148.9MB. Free memory was 117.0MB in the beginning and 105.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-14 17:58:48,838 INFO L158 Benchmark]: TraceAbstraction took 2656.94ms. Allocated memory was 148.9MB in the beginning and 211.8MB in the end (delta: 62.9MB). Free memory was 105.0MB in the beginning and 183.1MB in the end (delta: -78.1MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. [2024-10-14 17:58:48,839 INFO L158 Benchmark]: Witness Printer took 95.39ms. Allocated memory is still 211.8MB. Free memory was 183.1MB in the beginning and 178.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 17:58:48,840 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 148.9MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.73ms. Allocated memory is still 148.9MB. Free memory was 80.9MB in the beginning and 120.2MB in the end (delta: -39.2MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.35ms. Allocated memory is still 148.9MB. Free memory was 120.2MB in the beginning and 118.6MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.68ms. Allocated memory is still 148.9MB. Free memory was 118.6MB in the beginning and 117.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 313.05ms. Allocated memory is still 148.9MB. Free memory was 117.0MB in the beginning and 105.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2656.94ms. Allocated memory was 148.9MB in the beginning and 211.8MB in the end (delta: 62.9MB). Free memory was 105.0MB in the beginning and 183.1MB in the end (delta: -78.1MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. * Witness Printer took 95.39ms. Allocated memory is still 211.8MB. Free memory was 183.1MB in the beginning and 178.9MB in the end (delta: 4.2MB). 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: 12]: 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, 12 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 21 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=5, InterpolantAutomatonStates: 36, 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 710 SizeOfPredicates, 0 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 216/270 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-14 17:58:48,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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