./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/array02-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety/array02-alloca-2.i -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 6376f52a263bde0c709cb35a0d040626ae764c5527f8161f54a95df7802768d2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 14:58:32,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 14:58:32,290 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 14:58:32,296 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 14:58:32,297 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 14:58:32,325 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 14:58:32,326 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 14:58:32,326 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 14:58:32,327 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 14:58:32,328 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 14:58:32,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 14:58:32,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 14:58:32,330 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 14:58:32,333 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 14:58:32,333 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 14:58:32,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 14:58:32,334 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 14:58:32,334 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 14:58:32,334 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 14:58:32,335 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 14:58:32,335 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 14:58:32,338 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 14:58:32,339 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 14:58:32,339 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 14:58:32,339 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 14:58:32,339 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 14:58:32,340 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 14:58:32,340 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 14:58:32,340 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 14:58:32,341 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 14:58:32,341 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 14:58:32,341 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 14:58:32,341 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 14:58:32,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:58:32,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 14:58:32,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 14:58:32,343 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 14:58:32,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 14:58:32,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 14:58:32,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 14:58:32,344 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 14:58:32,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 14:58:32,345 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6376f52a263bde0c709cb35a0d040626ae764c5527f8161f54a95df7802768d2 [2024-11-10 14:58:32,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 14:58:32,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 14:58:32,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 14:58:32,633 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 14:58:32,634 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 14:58:32,635 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/array02-alloca-2.i [2024-11-10 14:58:34,150 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 14:58:34,381 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 14:58:34,382 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/array02-alloca-2.i [2024-11-10 14:58:34,395 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e15360f8f/c8a99b94e64b4baf8fabf274a400b724/FLAGcd719a819 [2024-11-10 14:58:34,410 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e15360f8f/c8a99b94e64b4baf8fabf274a400b724 [2024-11-10 14:58:34,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 14:58:34,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 14:58:34,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 14:58:34,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 14:58:34,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 14:58:34,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:58:34" (1/1) ... [2024-11-10 14:58:34,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e6f924b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:34, skipping insertion in model container [2024-11-10 14:58:34,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:58:34" (1/1) ... [2024-11-10 14:58:34,457 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 14:58:34,738 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 14:58:34,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:58:34,750 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 14:58:34,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 14:58:34,834 INFO L204 MainTranslator]: Completed translation [2024-11-10 14:58:34,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:34 WrapperNode [2024-11-10 14:58:34,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 14:58:34,836 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 14:58:34,836 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 14:58:34,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 14:58:34,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:34" (1/1) ... [2024-11-10 14:58:34,856 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:34" (1/1) ... [2024-11-10 14:58:34,877 INFO L138 Inliner]: procedures = 116, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2024-11-10 14:58:34,878 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 14:58:34,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 14:58:34,879 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 14:58:34,879 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 14:58:34,888 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:34" (1/1) ... [2024-11-10 14:58:34,889 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:34" (1/1) ... [2024-11-10 14:58:34,892 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:34" (1/1) ... [2024-11-10 14:58:34,903 INFO L175 MemorySlicer]: Split 7 memory accesses to 1 slices as follows [7]. 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]. [2024-11-10 14:58:34,903 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:34" (1/1) ... [2024-11-10 14:58:34,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:34" (1/1) ... [2024-11-10 14:58:34,907 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:34" (1/1) ... [2024-11-10 14:58:34,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:34" (1/1) ... [2024-11-10 14:58:34,910 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:34" (1/1) ... [2024-11-10 14:58:34,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:34" (1/1) ... [2024-11-10 14:58:34,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 14:58:34,914 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 14:58:34,914 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 14:58:34,914 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 14:58:34,915 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:34" (1/1) ... [2024-11-10 14:58:34,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 14:58:34,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:58:34,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 14:58:34,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 14:58:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 14:58:35,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 14:58:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 14:58:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 14:58:35,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 14:58:35,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 14:58:35,117 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 14:58:35,121 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 14:58:35,348 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-11-10 14:58:35,351 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 14:58:35,366 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 14:58:35,367 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 14:58:35,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:58:35 BoogieIcfgContainer [2024-11-10 14:58:35,368 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 14:58:35,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 14:58:35,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 14:58:35,373 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 14:58:35,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:58:34" (1/3) ... [2024-11-10 14:58:35,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e63b9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:58:35, skipping insertion in model container [2024-11-10 14:58:35,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:58:34" (2/3) ... [2024-11-10 14:58:35,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e63b9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:58:35, skipping insertion in model container [2024-11-10 14:58:35,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:58:35" (3/3) ... [2024-11-10 14:58:35,376 INFO L112 eAbstractionObserver]: Analyzing ICFG array02-alloca-2.i [2024-11-10 14:58:35,395 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 14:58:35,395 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2024-11-10 14:58:35,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 14:58:35,454 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;@2ed2bd5e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 14:58:35,455 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-10 14:58:35,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 31 states have (on average 1.7741935483870968) internal successors, (55), 46 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:35,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-10 14:58:35,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:58:35,468 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:58:35,469 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-10 14:58:35,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:58:35,474 INFO L85 PathProgramCache]: Analyzing trace with hash 611470445, now seen corresponding path program 1 times [2024-11-10 14:58:35,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:58:35,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180082207] [2024-11-10 14:58:35,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:35,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:58:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:35,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:58:35,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180082207] [2024-11-10 14:58:35,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180082207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:58:35,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:58:35,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 14:58:35,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884535718] [2024-11-10 14:58:35,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:58:35,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 14:58:35,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:58:35,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 14:58:35,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:58:35,754 INFO L87 Difference]: Start difference. First operand has 47 states, 31 states have (on average 1.7741935483870968) internal successors, (55), 46 states have internal predecessors, (55), 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 3.5) internal successors, (7), 3 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) [2024-11-10 14:58:35,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:58:35,825 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2024-11-10 14:58:35,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 14:58:35,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 7 [2024-11-10 14:58:35,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:58:35,835 INFO L225 Difference]: With dead ends: 46 [2024-11-10 14:58:35,835 INFO L226 Difference]: Without dead ends: 43 [2024-11-10 14:58:35,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 14:58:35,841 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 3 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 14:58:35,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 71 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 14:58:35,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-10 14:58:35,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-10 14:58:35,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 42 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:35,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2024-11-10 14:58:35,877 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 7 [2024-11-10 14:58:35,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:58:35,878 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2024-11-10 14:58:35,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2024-11-10 14:58:35,878 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2024-11-10 14:58:35,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-10 14:58:35,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:58:35,879 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:58:35,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 14:58:35,880 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-10 14:58:35,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:58:35,881 INFO L85 PathProgramCache]: Analyzing trace with hash 611470446, now seen corresponding path program 1 times [2024-11-10 14:58:35,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:58:35,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525690112] [2024-11-10 14:58:35,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:35,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:58:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:36,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:36,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:58:36,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525690112] [2024-11-10 14:58:36,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525690112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:58:36,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:58:36,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 14:58:36,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315836832] [2024-11-10 14:58:36,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:58:36,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 14:58:36,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:58:36,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 14:58:36,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 14:58:36,209 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2024-11-10 14:58:36,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:58:36,315 INFO L93 Difference]: Finished difference Result 54 states and 59 transitions. [2024-11-10 14:58:36,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 14:58:36,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 7 [2024-11-10 14:58:36,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:58:36,317 INFO L225 Difference]: With dead ends: 54 [2024-11-10 14:58:36,318 INFO L226 Difference]: Without dead ends: 54 [2024-11-10 14:58:36,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:58:36,320 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 14 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 14:58:36,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 112 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 14:58:36,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-10 14:58:36,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2024-11-10 14:58:36,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 46 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:36,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2024-11-10 14:58:36,330 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 7 [2024-11-10 14:58:36,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:58:36,330 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2024-11-10 14:58:36,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) [2024-11-10 14:58:36,331 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2024-11-10 14:58:36,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-10 14:58:36,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:58:36,331 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:58:36,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 14:58:36,334 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-10 14:58:36,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:58:36,334 INFO L85 PathProgramCache]: Analyzing trace with hash 612393967, now seen corresponding path program 1 times [2024-11-10 14:58:36,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:58:36,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254321175] [2024-11-10 14:58:36,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:36,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:58:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:36,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:36,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:58:36,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254321175] [2024-11-10 14:58:36,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254321175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:58:36,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:58:36,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 14:58:36,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336040331] [2024-11-10 14:58:36,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:58:36,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 14:58:36,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:58:36,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 14:58:36,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:58:36,657 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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) [2024-11-10 14:58:36,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:58:36,720 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2024-11-10 14:58:36,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 14:58:36,720 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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 7 [2024-11-10 14:58:36,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:58:36,721 INFO L225 Difference]: With dead ends: 51 [2024-11-10 14:58:36,721 INFO L226 Difference]: Without dead ends: 51 [2024-11-10 14:58:36,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-10 14:58:36,722 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 12 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 14:58:36,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 136 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 14:58:36,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-10 14:58:36,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2024-11-10 14:58:36,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 32 states have (on average 1.5625) internal successors, (50), 45 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:36,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2024-11-10 14:58:36,732 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 7 [2024-11-10 14:58:36,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:58:36,732 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2024-11-10 14:58:36,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 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) [2024-11-10 14:58:36,733 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2024-11-10 14:58:36,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-10 14:58:36,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:58:36,734 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:58:36,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 14:58:36,734 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-10 14:58:36,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:58:36,736 INFO L85 PathProgramCache]: Analyzing trace with hash -797862000, now seen corresponding path program 1 times [2024-11-10 14:58:36,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:58:36,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14018058] [2024-11-10 14:58:36,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:36,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:58:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:36,804 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:36,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:58:36,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14018058] [2024-11-10 14:58:36,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14018058] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:58:36,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899586555] [2024-11-10 14:58:36,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:36,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:58:36,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:58:36,808 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:58:36,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 14:58:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:36,868 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 14:58:36,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:58:36,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:36,949 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:58:36,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899586555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:58:36,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:58:36,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-10 14:58:36,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626509275] [2024-11-10 14:58:36,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:58:36,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 14:58:36,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:58:36,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 14:58:36,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 14:58:36,954 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:36,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:58:36,983 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2024-11-10 14:58:36,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 14:58:36,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-10 14:58:36,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:58:36,986 INFO L225 Difference]: With dead ends: 54 [2024-11-10 14:58:36,986 INFO L226 Difference]: Without dead ends: 54 [2024-11-10 14:58:36,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-10 14:58:36,989 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 1 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 14:58:36,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 120 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 14:58:36,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-10 14:58:36,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2024-11-10 14:58:36,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 52 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:36,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2024-11-10 14:58:36,998 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 11 [2024-11-10 14:58:36,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:58:37,000 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2024-11-10 14:58:37,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:37,000 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2024-11-10 14:58:37,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-10 14:58:37,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:58:37,001 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:58:37,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 14:58:37,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:58:37,202 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-10 14:58:37,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:58:37,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1689650833, now seen corresponding path program 1 times [2024-11-10 14:58:37,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:58:37,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323889734] [2024-11-10 14:58:37,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:37,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:58:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:37,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:37,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:58:37,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323889734] [2024-11-10 14:58:37,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323889734] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:58:37,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076165498] [2024-11-10 14:58:37,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:37,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:58:37,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:58:37,446 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) [2024-11-10 14:58:37,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 14:58:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:37,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-10 14:58:37,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:58:37,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2024-11-10 14:58:37,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:37,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:58:38,103 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:38,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076165498] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:58:38,104 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:58:38,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2024-11-10 14:58:38,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089692631] [2024-11-10 14:58:38,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:58:38,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 14:58:38,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:58:38,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 14:58:38,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2024-11-10 14:58:38,107 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 19 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 19 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:38,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:58:38,347 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2024-11-10 14:58:38,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 14:58:38,347 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 19 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-10 14:58:38,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:58:38,348 INFO L225 Difference]: With dead ends: 57 [2024-11-10 14:58:38,348 INFO L226 Difference]: Without dead ends: 57 [2024-11-10 14:58:38,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2024-11-10 14:58:38,349 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 44 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 14:58:38,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 201 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 14:58:38,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-10 14:58:38,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 51. [2024-11-10 14:58:38,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 50 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:38,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2024-11-10 14:58:38,354 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 11 [2024-11-10 14:58:38,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:58:38,355 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2024-11-10 14:58:38,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 19 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:38,355 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2024-11-10 14:58:38,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-10 14:58:38,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:58:38,356 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:58:38,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 14:58:38,556 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 [2024-11-10 14:58:38,557 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-10 14:58:38,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:58:38,558 INFO L85 PathProgramCache]: Analyzing trace with hash -2077551221, now seen corresponding path program 1 times [2024-11-10 14:58:38,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:58:38,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830024205] [2024-11-10 14:58:38,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:38,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:58:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:38,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:38,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:58:38,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830024205] [2024-11-10 14:58:38,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830024205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:58:38,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:58:38,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:58:38,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919452017] [2024-11-10 14:58:38,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:58:38,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 14:58:38,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:58:38,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 14:58:38,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:58:38,604 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:38,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:58:38,656 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2024-11-10 14:58:38,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 14:58:38,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 15 [2024-11-10 14:58:38,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:58:38,657 INFO L225 Difference]: With dead ends: 45 [2024-11-10 14:58:38,657 INFO L226 Difference]: Without dead ends: 45 [2024-11-10 14:58:38,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:58:38,658 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 18 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 14:58:38,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 49 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 14:58:38,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-10 14:58:38,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-10 14:58:38,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.2894736842105263) internal successors, (49), 44 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:38,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2024-11-10 14:58:38,662 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 15 [2024-11-10 14:58:38,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:58:38,662 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2024-11-10 14:58:38,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:38,663 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2024-11-10 14:58:38,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-10 14:58:38,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:58:38,663 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:58:38,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 14:58:38,664 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-10 14:58:38,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:58:38,664 INFO L85 PathProgramCache]: Analyzing trace with hash -2077551220, now seen corresponding path program 1 times [2024-11-10 14:58:38,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:58:38,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024952051] [2024-11-10 14:58:38,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:38,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:58:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:38,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:38,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:58:38,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024952051] [2024-11-10 14:58:38,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024952051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:58:38,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121239469] [2024-11-10 14:58:38,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:38,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:58:38,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:58:38,846 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:58:38,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 14:58:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:38,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-10 14:58:38,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:58:38,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:38,980 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:58:39,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2024-11-10 14:58:39,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:39,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121239469] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:58:39,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:58:39,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2024-11-10 14:58:39,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338700570] [2024-11-10 14:58:39,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:58:39,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 14:58:39,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:58:39,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 14:58:39,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-10 14:58:39,057 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:39,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:58:39,181 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2024-11-10 14:58:39,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 14:58:39,181 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 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 15 [2024-11-10 14:58:39,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:58:39,182 INFO L225 Difference]: With dead ends: 61 [2024-11-10 14:58:39,182 INFO L226 Difference]: Without dead ends: 61 [2024-11-10 14:58:39,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-10 14:58:39,183 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 33 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 14:58:39,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 130 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 14:58:39,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-10 14:58:39,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 44. [2024-11-10 14:58:39,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 43 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:39,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2024-11-10 14:58:39,190 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 15 [2024-11-10 14:58:39,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:58:39,190 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2024-11-10 14:58:39,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:39,191 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2024-11-10 14:58:39,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-10 14:58:39,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:58:39,192 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:58:39,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 14:58:39,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:58:39,396 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-10 14:58:39,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:58:39,396 INFO L85 PathProgramCache]: Analyzing trace with hash 20362071, now seen corresponding path program 1 times [2024-11-10 14:58:39,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:58:39,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021856560] [2024-11-10 14:58:39,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:39,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:58:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:39,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:58:39,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:58:39,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021856560] [2024-11-10 14:58:39,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021856560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:58:39,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:58:39,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 14:58:39,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599935756] [2024-11-10 14:58:39,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:58:39,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 14:58:39,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:58:39,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 14:58:39,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:58:39,482 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:39,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:58:39,526 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2024-11-10 14:58:39,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 14:58:39,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 16 [2024-11-10 14:58:39,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:58:39,528 INFO L225 Difference]: With dead ends: 59 [2024-11-10 14:58:39,528 INFO L226 Difference]: Without dead ends: 59 [2024-11-10 14:58:39,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:58:39,529 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 17 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 14:58:39,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 60 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 14:58:39,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-10 14:58:39,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 44. [2024-11-10 14:58:39,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 43 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) [2024-11-10 14:58:39,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2024-11-10 14:58:39,532 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 16 [2024-11-10 14:58:39,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:58:39,533 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2024-11-10 14:58:39,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:39,533 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2024-11-10 14:58:39,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-10 14:58:39,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:58:39,534 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:58:39,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 14:58:39,534 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-10 14:58:39,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:58:39,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1708505883, now seen corresponding path program 1 times [2024-11-10 14:58:39,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:58:39,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081191330] [2024-11-10 14:58:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:39,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:58:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:39,601 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:58:39,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:58:39,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081191330] [2024-11-10 14:58:39,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081191330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:58:39,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676955714] [2024-11-10 14:58:39,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:39,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:58:39,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:58:39,605 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:58:39,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 14:58:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:39,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 14:58:39,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:58:39,734 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 14:58:39,735 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 14:58:39,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676955714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:58:39,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 14:58:39,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-10 14:58:39,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680136085] [2024-11-10 14:58:39,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:58:39,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 14:58:39,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:58:39,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 14:58:39,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 14:58:39,739 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 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) [2024-11-10 14:58:39,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:58:39,779 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2024-11-10 14:58:39,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 14:58:39,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 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) Word has length 24 [2024-11-10 14:58:39,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:58:39,782 INFO L225 Difference]: With dead ends: 64 [2024-11-10 14:58:39,782 INFO L226 Difference]: Without dead ends: 64 [2024-11-10 14:58:39,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-10 14:58:39,783 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 10 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 14:58:39,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 74 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 14:58:39,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-10 14:58:39,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-11-10 14:58:39,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 62 states have (on average 1.1290322580645162) internal successors, (70), 63 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:39,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2024-11-10 14:58:39,790 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 24 [2024-11-10 14:58:39,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:58:39,791 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2024-11-10 14:58:39,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 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) [2024-11-10 14:58:39,791 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2024-11-10 14:58:39,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-10 14:58:39,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:58:39,794 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:58:39,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 14:58:39,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:58:39,995 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-10 14:58:39,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:58:39,996 INFO L85 PathProgramCache]: Analyzing trace with hash 548405124, now seen corresponding path program 1 times [2024-11-10 14:58:39,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:58:39,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837846645] [2024-11-10 14:58:39,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:39,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:58:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:40,107 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:40,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:58:40,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837846645] [2024-11-10 14:58:40,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837846645] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:58:40,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255634868] [2024-11-10 14:58:40,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:40,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:58:40,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:58:40,110 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:58:40,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 14:58:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:40,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 14:58:40,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:58:40,244 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:40,245 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:58:40,301 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:40,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255634868] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:58:40,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:58:40,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-10 14:58:40,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416232742] [2024-11-10 14:58:40,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:58:40,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-10 14:58:40,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:58:40,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-10 14:58:40,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-10 14:58:40,304 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:40,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:58:40,394 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2024-11-10 14:58:40,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:58:40,394 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 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 [2024-11-10 14:58:40,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:58:40,395 INFO L225 Difference]: With dead ends: 90 [2024-11-10 14:58:40,395 INFO L226 Difference]: Without dead ends: 90 [2024-11-10 14:58:40,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-10 14:58:40,396 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 28 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 14:58:40,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 117 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 14:58:40,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-10 14:58:40,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 68. [2024-11-10 14:58:40,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 66 states have (on average 1.1363636363636365) internal successors, (75), 67 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:40,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2024-11-10 14:58:40,404 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 24 [2024-11-10 14:58:40,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:58:40,404 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2024-11-10 14:58:40,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:40,404 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2024-11-10 14:58:40,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-10 14:58:40,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:58:40,406 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:58:40,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 14:58:40,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-10 14:58:40,607 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-10 14:58:40,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:58:40,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1424134370, now seen corresponding path program 1 times [2024-11-10 14:58:40,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:58:40,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171603598] [2024-11-10 14:58:40,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:40,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:58:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:40,706 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 14:58:40,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:58:40,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171603598] [2024-11-10 14:58:40,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171603598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 14:58:40,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 14:58:40,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 14:58:40,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150106134] [2024-11-10 14:58:40,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 14:58:40,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 14:58:40,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:58:40,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 14:58:40,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:58:40,710 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 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) [2024-11-10 14:58:40,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:58:40,732 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2024-11-10 14:58:40,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 14:58:40,733 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 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) Word has length 25 [2024-11-10 14:58:40,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:58:40,733 INFO L225 Difference]: With dead ends: 67 [2024-11-10 14:58:40,733 INFO L226 Difference]: Without dead ends: 37 [2024-11-10 14:58:40,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 14:58:40,734 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 12 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 14:58:40,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 48 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 14:58:40,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-10 14:58:40,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-10 14:58:40,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 36 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:40,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2024-11-10 14:58:40,741 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 25 [2024-11-10 14:58:40,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:58:40,741 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2024-11-10 14:58:40,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 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) [2024-11-10 14:58:40,741 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2024-11-10 14:58:40,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-10 14:58:40,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:58:40,744 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:58:40,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 14:58:40,744 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-10 14:58:40,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:58:40,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1719907618, now seen corresponding path program 2 times [2024-11-10 14:58:40,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:58:40,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349627875] [2024-11-10 14:58:40,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:40,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:58:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:40,990 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:40,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:58:40,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349627875] [2024-11-10 14:58:40,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349627875] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:58:40,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279910857] [2024-11-10 14:58:40,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 14:58:40,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:58:40,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:58:40,993 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:58:40,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 14:58:41,056 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 14:58:41,056 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:58:41,057 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-10 14:58:41,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:58:41,230 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:41,231 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:58:41,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2024-11-10 14:58:41,423 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:41,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279910857] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:58:41,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:58:41,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2024-11-10 14:58:41,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527779994] [2024-11-10 14:58:41,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:58:41,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-10 14:58:41,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:58:41,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-10 14:58:41,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-10 14:58:41,426 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 17 states, 16 states have (on average 4.875) internal successors, (78), 17 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:41,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:58:41,586 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2024-11-10 14:58:41,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 14:58:41,587 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.875) internal successors, (78), 17 states have internal predecessors, (78), 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 28 [2024-11-10 14:58:41,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:58:41,587 INFO L225 Difference]: With dead ends: 72 [2024-11-10 14:58:41,587 INFO L226 Difference]: Without dead ends: 72 [2024-11-10 14:58:41,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-11-10 14:58:41,588 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 72 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 14:58:41,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 226 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 14:58:41,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-10 14:58:41,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 54. [2024-11-10 14:58:41,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.1132075471698113) internal successors, (59), 53 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:41,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2024-11-10 14:58:41,594 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 28 [2024-11-10 14:58:41,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:58:41,594 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2024-11-10 14:58:41,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.875) internal successors, (78), 17 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:41,595 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2024-11-10 14:58:41,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-10 14:58:41,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 14:58:41,598 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:58:41,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-10 14:58:41,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:58:41,803 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 12 more)] === [2024-11-10 14:58:41,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 14:58:41,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1692611057, now seen corresponding path program 3 times [2024-11-10 14:58:41,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 14:58:41,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542846843] [2024-11-10 14:58:41,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 14:58:41,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 14:58:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 14:58:41,930 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 14:58:41,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 14:58:41,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542846843] [2024-11-10 14:58:41,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542846843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 14:58:41,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765734036] [2024-11-10 14:58:41,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 14:58:41,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:58:41,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 14:58:41,944 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 14:58:41,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 14:58:42,011 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 14:58:42,012 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 14:58:42,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-10 14:58:42,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 14:58:42,183 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-10 14:58:42,184 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 14:58:42,533 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-10 14:58:42,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765734036] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 14:58:42,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 14:58:42,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 23 [2024-11-10 14:58:42,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819804503] [2024-11-10 14:58:42,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 14:58:42,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 14:58:42,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 14:58:42,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 14:58:42,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2024-11-10 14:58:42,536 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 23 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:42,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 14:58:42,985 INFO L93 Difference]: Finished difference Result 100 states and 109 transitions. [2024-11-10 14:58:42,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 14:58:42,985 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 23 states have internal predecessors, (90), 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 37 [2024-11-10 14:58:42,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 14:58:42,986 INFO L225 Difference]: With dead ends: 100 [2024-11-10 14:58:42,986 INFO L226 Difference]: Without dead ends: 0 [2024-11-10 14:58:42,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=198, Invalid=1134, Unknown=0, NotChecked=0, Total=1332 [2024-11-10 14:58:42,987 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 148 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 14:58:42,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 330 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 14:58:42,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-10 14:58:42,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-10 14:58:42,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:42,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-10 14:58:42,988 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2024-11-10 14:58:42,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 14:58:42,988 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-10 14:58:42,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 23 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 14:58:42,988 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-10 14:58:42,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-10 14:58:42,992 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (14 of 15 remaining) [2024-11-10 14:58:42,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 15 remaining) [2024-11-10 14:58:42,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 15 remaining) [2024-11-10 14:58:42,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 15 remaining) [2024-11-10 14:58:42,993 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 15 remaining) [2024-11-10 14:58:42,994 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 15 remaining) [2024-11-10 14:58:42,994 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 15 remaining) [2024-11-10 14:58:42,994 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 15 remaining) [2024-11-10 14:58:42,994 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 15 remaining) [2024-11-10 14:58:42,994 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 15 remaining) [2024-11-10 14:58:42,994 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 15 remaining) [2024-11-10 14:58:42,994 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 15 remaining) [2024-11-10 14:58:42,995 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 15 remaining) [2024-11-10 14:58:42,995 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 15 remaining) [2024-11-10 14:58:42,995 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 15 remaining) [2024-11-10 14:58:43,012 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 14:58:43,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 14:58:43,202 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 14:58:43,205 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 14:58:43,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 02:58:43 BoogieIcfgContainer [2024-11-10 14:58:43,208 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 14:58:43,208 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 14:58:43,209 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 14:58:43,209 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 14:58:43,209 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 02:58:35" (3/4) ... [2024-11-10 14:58:43,212 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 14:58:43,219 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-10 14:58:43,220 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-10 14:58:43,221 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 14:58:43,221 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-10 14:58:43,308 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 14:58:43,309 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 14:58:43,309 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 14:58:43,310 INFO L158 Benchmark]: Toolchain (without parser) took 8896.90ms. Allocated memory was 144.7MB in the beginning and 224.4MB in the end (delta: 79.7MB). Free memory was 86.0MB in the beginning and 180.4MB in the end (delta: -94.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 14:58:43,310 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 144.7MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 14:58:43,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.09ms. Allocated memory is still 144.7MB. Free memory was 85.6MB in the beginning and 66.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-10 14:58:43,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.41ms. Allocated memory is still 144.7MB. Free memory was 66.7MB in the beginning and 64.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 14:58:43,311 INFO L158 Benchmark]: Boogie Preprocessor took 34.58ms. Allocated memory is still 144.7MB. Free memory was 64.9MB in the beginning and 63.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 14:58:43,311 INFO L158 Benchmark]: IcfgBuilder took 453.99ms. Allocated memory was 144.7MB in the beginning and 186.6MB in the end (delta: 41.9MB). Free memory was 63.2MB in the beginning and 146.9MB in the end (delta: -83.7MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2024-11-10 14:58:43,312 INFO L158 Benchmark]: TraceAbstraction took 7837.76ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 146.9MB in the beginning and 185.7MB in the end (delta: -38.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 14:58:43,313 INFO L158 Benchmark]: Witness Printer took 100.87ms. Allocated memory is still 224.4MB. Free memory was 185.7MB in the beginning and 180.4MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-10 14:58:43,314 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 144.7MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.09ms. Allocated memory is still 144.7MB. Free memory was 85.6MB in the beginning and 66.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.41ms. Allocated memory is still 144.7MB. Free memory was 66.7MB in the beginning and 64.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.58ms. Allocated memory is still 144.7MB. Free memory was 64.9MB in the beginning and 63.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 453.99ms. Allocated memory was 144.7MB in the beginning and 186.6MB in the end (delta: 41.9MB). Free memory was 63.2MB in the beginning and 146.9MB in the end (delta: -83.7MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7837.76ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 146.9MB in the beginning and 185.7MB in the end (delta: -38.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 100.87ms. Allocated memory is still 224.4MB. Free memory was 185.7MB in the beginning and 180.4MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 528]: all allocated memory was freed For all program executions holds that all allocated memory was freed 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 7.8s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 412 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 412 mSDsluCounter, 1674 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1265 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1102 IncrementalHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 409 mSDtfsCounter, 1102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 342 GetRequests, 222 SyntacticMatches, 3 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=10, InterpolantAutomatonStates: 91, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 91 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 377 NumberOfCodeBlocks, 364 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 467 ConstructedInterpolants, 1 QuantifiedInterpolants, 4029 SizeOfPredicates, 18 NumberOfNonLiveVariables, 521 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 25 InterpolantComputations, 8 PerfectInterpolantSequences, 77/170 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 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 14:58:43,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE