./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/forester-heap/sll-buckets-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 3289d67d 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/forester-heap/sll-buckets-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-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-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a4c2149f6fe1f453f0ff04220f5041f2227f6654d0fa84d48205415ce284fcb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:55:08,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:55:08,556 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-16 23:55:08,561 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:55:08,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:55:08,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:55:08,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:55:08,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:55:08,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 23:55:08,588 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 23:55:08,588 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:55:08,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:55:08,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:55:08,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:55:08,591 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:55:08,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:55:08,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:55:08,591 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:55:08,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:55:08,592 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:55:08,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:55:08,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:55:08,594 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-16 23:55:08,594 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-16 23:55:08,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:55:08,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:55:08,595 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-16 23:55:08,595 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:55:08,596 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:55:08,596 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:55:08,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:55:08,597 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:55:08,597 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:55:08,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:55:08,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 23:55:08,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:55:08,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:55:08,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:55:08,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:55:08,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:55:08,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:55:08,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:55:08,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:55:08,600 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:55:08,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:55:08,600 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a4c2149f6fe1f453f0ff04220f5041f2227f6654d0fa84d48205415ce284fcb [2024-11-16 23:55:08,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:55:08,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:55:08,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:55:08,869 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:55:08,871 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:55:08,876 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-buckets-2.i [2024-11-16 23:55:10,269 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:55:10,458 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:55:10,459 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-buckets-2.i [2024-11-16 23:55:10,474 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b79819265/e88f5fcf9bf6434eb31495e665af49e6/FLAGd0620bd23 [2024-11-16 23:55:10,816 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b79819265/e88f5fcf9bf6434eb31495e665af49e6 [2024-11-16 23:55:10,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:55:10,823 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:55:10,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:55:10,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:55:10,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:55:10,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:55:10" (1/1) ... [2024-11-16 23:55:10,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@438691b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:10, skipping insertion in model container [2024-11-16 23:55:10,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:55:10" (1/1) ... [2024-11-16 23:55:10,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:55:11,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:55:11,265 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:55:11,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:55:11,432 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:55:11,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:11 WrapperNode [2024-11-16 23:55:11,437 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:55:11,438 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:55:11,438 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:55:11,438 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:55:11,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:11" (1/1) ... [2024-11-16 23:55:11,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:11" (1/1) ... [2024-11-16 23:55:11,487 INFO L138 Inliner]: procedures = 119, calls = 47, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 145 [2024-11-16 23:55:11,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:55:11,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:55:11,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:55:11,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:55:11,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:11" (1/1) ... [2024-11-16 23:55:11,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:11" (1/1) ... [2024-11-16 23:55:11,498 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:11" (1/1) ... [2024-11-16 23:55:11,510 INFO L175 MemorySlicer]: Split 32 memory accesses to 2 slices as follows [2, 30]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 16 writes are split as follows [0, 16]. [2024-11-16 23:55:11,510 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:11" (1/1) ... [2024-11-16 23:55:11,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:11" (1/1) ... [2024-11-16 23:55:11,515 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:11" (1/1) ... [2024-11-16 23:55:11,516 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:11" (1/1) ... [2024-11-16 23:55:11,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:11" (1/1) ... [2024-11-16 23:55:11,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:11" (1/1) ... [2024-11-16 23:55:11,519 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:55:11,520 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:55:11,520 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:55:11,520 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:55:11,521 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:11" (1/1) ... [2024-11-16 23:55:11,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:55:11,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:11,547 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) [2024-11-16 23:55:11,553 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 [2024-11-16 23:55:11,587 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-16 23:55:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-16 23:55:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 23:55:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 23:55:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 23:55:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 23:55:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 23:55:11,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:55:11,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-16 23:55:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-16 23:55:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-16 23:55:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-16 23:55:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-16 23:55:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 23:55:11,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 23:55:11,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:55:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:55:11,682 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:55:11,683 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:55:11,861 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2024-11-16 23:55:11,862 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:55:11,870 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:55:11,871 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:55:11,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:55:11 BoogieIcfgContainer [2024-11-16 23:55:11,871 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:55:11,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:55:11,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:55:11,875 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:55:11,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:55:10" (1/3) ... [2024-11-16 23:55:11,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2103bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:55:11, skipping insertion in model container [2024-11-16 23:55:11,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:55:11" (2/3) ... [2024-11-16 23:55:11,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2103bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:55:11, skipping insertion in model container [2024-11-16 23:55:11,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:55:11" (3/3) ... [2024-11-16 23:55:11,877 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-buckets-2.i [2024-11-16 23:55:11,889 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:55:11,889 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 23:55:11,918 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:55:11,924 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;@5d9d31d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:55:11,924 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 23:55:11,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 49 states have (on average 1.6326530612244898) internal successors, (80), 51 states have internal predecessors, (80), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-16 23:55:11,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-16 23:55:11,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:11,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:11,939 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:11,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:11,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1880596050, now seen corresponding path program 1 times [2024-11-16 23:55:11,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:11,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50955602] [2024-11-16 23:55:11,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:11,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:12,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:12,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:12,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50955602] [2024-11-16 23:55:12,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50955602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:55:12,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:55:12,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:55:12,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675884081] [2024-11-16 23:55:12,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:55:12,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:55:12,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:12,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:55:12,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:55:12,201 INFO L87 Difference]: Start difference. First operand has 58 states, 49 states have (on average 1.6326530612244898) internal successors, (80), 51 states have internal predecessors, (80), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:12,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:12,215 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2024-11-16 23:55:12,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:55:12,217 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-16 23:55:12,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:12,222 INFO L225 Difference]: With dead ends: 51 [2024-11-16 23:55:12,222 INFO L226 Difference]: Without dead ends: 48 [2024-11-16 23:55:12,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:55:12,226 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:12,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 23:55:12,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-16 23:55:12,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-16 23:55:12,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 46 states have internal predecessors, (54), 5 states have call successors, (5), 1 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:12,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 59 transitions. [2024-11-16 23:55:12,247 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 59 transitions. Word has length 8 [2024-11-16 23:55:12,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:12,248 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 59 transitions. [2024-11-16 23:55:12,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:12,248 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 59 transitions. [2024-11-16 23:55:12,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-16 23:55:12,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:12,249 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:12,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:55:12,249 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:12,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:12,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1995134176, now seen corresponding path program 1 times [2024-11-16 23:55:12,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:12,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386642395] [2024-11-16 23:55:12,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:12,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:12,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:12,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:12,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386642395] [2024-11-16 23:55:12,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386642395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:55:12,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:55:12,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 23:55:12,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351157460] [2024-11-16 23:55:12,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:55:12,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 23:55:12,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:12,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 23:55:12,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 23:55:12,370 INFO L87 Difference]: Start difference. First operand 48 states and 59 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:12,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:12,422 INFO L93 Difference]: Finished difference Result 68 states and 83 transitions. [2024-11-16 23:55:12,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 23:55:12,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-16 23:55:12,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:12,424 INFO L225 Difference]: With dead ends: 68 [2024-11-16 23:55:12,425 INFO L226 Difference]: Without dead ends: 68 [2024-11-16 23:55:12,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:55:12,427 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 62 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:12,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 105 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 23:55:12,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-16 23:55:12,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 53. [2024-11-16 23:55:12,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 47 states have (on average 1.2765957446808511) internal successors, (60), 51 states have internal predecessors, (60), 4 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:12,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2024-11-16 23:55:12,443 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 10 [2024-11-16 23:55:12,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:12,443 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2024-11-16 23:55:12,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:12,443 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2024-11-16 23:55:12,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-16 23:55:12,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:12,444 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:12,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:55:12,445 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:12,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:12,446 INFO L85 PathProgramCache]: Analyzing trace with hash 85375544, now seen corresponding path program 1 times [2024-11-16 23:55:12,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:12,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238828119] [2024-11-16 23:55:12,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:12,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:13,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:13,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:13,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238828119] [2024-11-16 23:55:13,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238828119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:55:13,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:55:13,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 23:55:13,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739340976] [2024-11-16 23:55:13,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:55:13,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 23:55:13,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:13,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 23:55:13,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 23:55:13,052 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:13,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:13,180 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2024-11-16 23:55:13,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:55:13,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-16 23:55:13,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:13,181 INFO L225 Difference]: With dead ends: 61 [2024-11-16 23:55:13,181 INFO L226 Difference]: Without dead ends: 61 [2024-11-16 23:55:13,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 23:55:13,182 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 24 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:13,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 136 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 23:55:13,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-16 23:55:13,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2024-11-16 23:55:13,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 54 states have (on average 1.2407407407407407) internal successors, (67), 57 states have internal predecessors, (67), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:13,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2024-11-16 23:55:13,187 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 14 [2024-11-16 23:55:13,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:13,187 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2024-11-16 23:55:13,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:13,188 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2024-11-16 23:55:13,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-16 23:55:13,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:13,188 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:13,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:55:13,189 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:13,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:13,189 INFO L85 PathProgramCache]: Analyzing trace with hash 16090553, now seen corresponding path program 1 times [2024-11-16 23:55:13,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:13,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818565419] [2024-11-16 23:55:13,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:13,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:13,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:13,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:13,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:13,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818565419] [2024-11-16 23:55:13,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818565419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:55:13,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:55:13,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:55:13,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130227852] [2024-11-16 23:55:13,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:55:13,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:55:13,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:13,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:55:13,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:55:13,244 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:13,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:13,269 INFO L93 Difference]: Finished difference Result 58 states and 68 transitions. [2024-11-16 23:55:13,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:55:13,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-16 23:55:13,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:13,271 INFO L225 Difference]: With dead ends: 58 [2024-11-16 23:55:13,272 INFO L226 Difference]: Without dead ends: 58 [2024-11-16 23:55:13,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:55:13,273 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 17 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:13,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 69 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 23:55:13,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-16 23:55:13,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-16 23:55:13,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 54 states have (on average 1.2222222222222223) internal successors, (66), 56 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:13,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 68 transitions. [2024-11-16 23:55:13,284 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 68 transitions. Word has length 14 [2024-11-16 23:55:13,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:13,284 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 68 transitions. [2024-11-16 23:55:13,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:13,284 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 68 transitions. [2024-11-16 23:55:13,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-16 23:55:13,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:13,285 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:13,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:55:13,285 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:13,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:13,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1229878234, now seen corresponding path program 1 times [2024-11-16 23:55:13,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:13,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552179336] [2024-11-16 23:55:13,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:13,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:13,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:13,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:13,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552179336] [2024-11-16 23:55:13,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552179336] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:13,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677112995] [2024-11-16 23:55:13,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:13,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:13,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:13,502 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) [2024-11-16 23:55:13,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 23:55:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:13,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-16 23:55:13,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:13,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2024-11-16 23:55:13,723 INFO L349 Elim1Store]: treesize reduction 62, result has 7.5 percent of original size [2024-11-16 23:55:13,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 46 [2024-11-16 23:55:13,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:13,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-16 23:55:13,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2024-11-16 23:55:13,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 12 [2024-11-16 23:55:13,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:13,856 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:13,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:13,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677112995] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:13,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:13,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-16 23:55:13,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000516071] [2024-11-16 23:55:13,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:13,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 23:55:13,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:13,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 23:55:13,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-16 23:55:13,902 INFO L87 Difference]: Start difference. First operand 58 states and 68 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2024-11-16 23:55:14,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:14,008 INFO L93 Difference]: Finished difference Result 75 states and 87 transitions. [2024-11-16 23:55:14,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 23:55:14,009 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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 18 [2024-11-16 23:55:14,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:14,010 INFO L225 Difference]: With dead ends: 75 [2024-11-16 23:55:14,010 INFO L226 Difference]: Without dead ends: 75 [2024-11-16 23:55:14,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-16 23:55:14,011 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 17 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:14,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 219 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 23:55:14,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-16 23:55:14,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 62. [2024-11-16 23:55:14,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 58 states have (on average 1.206896551724138) internal successors, (70), 60 states have internal predecessors, (70), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:14,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2024-11-16 23:55:14,014 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 18 [2024-11-16 23:55:14,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:14,015 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2024-11-16 23:55:14,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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) [2024-11-16 23:55:14,015 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2024-11-16 23:55:14,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-16 23:55:14,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:14,015 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:14,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 23:55:14,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:14,217 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:14,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:14,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1540297138, now seen corresponding path program 1 times [2024-11-16 23:55:14,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:14,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388052651] [2024-11-16 23:55:14,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:14,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:14,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:14,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:14,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388052651] [2024-11-16 23:55:14,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388052651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:14,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142044596] [2024-11-16 23:55:14,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:14,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:14,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:14,392 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) [2024-11-16 23:55:14,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 23:55:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:14,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-16 23:55:14,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:14,518 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-16 23:55:14,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 13 [2024-11-16 23:55:14,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2024-11-16 23:55:14,533 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-16 23:55:14,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 37 [2024-11-16 23:55:14,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:14,558 INFO L349 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2024-11-16 23:55:14,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 1 [2024-11-16 23:55:14,589 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-16 23:55:14,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-16 23:55:14,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-11-16 23:55:14,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-11-16 23:55:14,699 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:14,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 15 [2024-11-16 23:55:14,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:14,706 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:14,740 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_492 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_492) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|) 0))) is different from false [2024-11-16 23:55:14,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:14,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142044596] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:14,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:14,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2024-11-16 23:55:14,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291602141] [2024-11-16 23:55:14,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:14,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 23:55:14,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:14,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 23:55:14,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=100, Unknown=1, NotChecked=20, Total=156 [2024-11-16 23:55:14,809 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:15,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:15,316 INFO L93 Difference]: Finished difference Result 161 states and 196 transitions. [2024-11-16 23:55:15,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 23:55:15,317 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-16 23:55:15,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:15,318 INFO L225 Difference]: With dead ends: 161 [2024-11-16 23:55:15,318 INFO L226 Difference]: Without dead ends: 161 [2024-11-16 23:55:15,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=265, Unknown=1, NotChecked=36, Total=420 [2024-11-16 23:55:15,318 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 437 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 152 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:15,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 275 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 169 Invalid, 0 Unknown, 152 Unchecked, 0.3s Time] [2024-11-16 23:55:15,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-16 23:55:15,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 100. [2024-11-16 23:55:15,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 96 states have (on average 1.2291666666666667) internal successors, (118), 98 states have internal predecessors, (118), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:15,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 120 transitions. [2024-11-16 23:55:15,347 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 120 transitions. Word has length 21 [2024-11-16 23:55:15,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:15,347 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 120 transitions. [2024-11-16 23:55:15,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.923076923076923) internal successors, (38), 13 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:15,348 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 120 transitions. [2024-11-16 23:55:15,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-16 23:55:15,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:15,349 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:15,373 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 23:55:15,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-16 23:55:15,551 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:15,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:15,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1739565118, now seen corresponding path program 1 times [2024-11-16 23:55:15,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:15,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026330761] [2024-11-16 23:55:15,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:15,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:16,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:16,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:16,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026330761] [2024-11-16 23:55:16,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026330761] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:16,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952175131] [2024-11-16 23:55:16,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:16,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:16,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:16,584 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) [2024-11-16 23:55:16,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 23:55:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:16,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-16 23:55:16,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:16,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-11-16 23:55:16,807 INFO L349 Elim1Store]: treesize reduction 62, result has 21.5 percent of original size [2024-11-16 23:55:16,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 86 [2024-11-16 23:55:16,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 52 [2024-11-16 23:55:16,895 INFO L349 Elim1Store]: treesize reduction 102, result has 32.5 percent of original size [2024-11-16 23:55:16,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 59 [2024-11-16 23:55:16,912 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 23 [2024-11-16 23:55:16,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-16 23:55:17,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-16 23:55:17,038 INFO L349 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2024-11-16 23:55:17,038 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 43 [2024-11-16 23:55:17,194 INFO L349 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2024-11-16 23:55:17,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 92 treesize of output 63 [2024-11-16 23:55:17,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:17,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 49 [2024-11-16 23:55:17,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:17,458 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:17,643 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:17,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952175131] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:17,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:17,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 17 [2024-11-16 23:55:17,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24657135] [2024-11-16 23:55:17,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:17,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 23:55:17,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:17,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 23:55:17,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-16 23:55:17,645 INFO L87 Difference]: Start difference. First operand 100 states and 120 transitions. Second operand has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:18,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:18,080 INFO L93 Difference]: Finished difference Result 134 states and 159 transitions. [2024-11-16 23:55:18,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-16 23:55:18,081 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-16 23:55:18,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:18,081 INFO L225 Difference]: With dead ends: 134 [2024-11-16 23:55:18,081 INFO L226 Difference]: Without dead ends: 134 [2024-11-16 23:55:18,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2024-11-16 23:55:18,082 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 103 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:18,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 304 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 23:55:18,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-16 23:55:18,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 108. [2024-11-16 23:55:18,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 104 states have (on average 1.2115384615384615) internal successors, (126), 106 states have internal predecessors, (126), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:18,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 128 transitions. [2024-11-16 23:55:18,086 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 128 transitions. Word has length 22 [2024-11-16 23:55:18,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:18,087 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 128 transitions. [2024-11-16 23:55:18,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:18,087 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 128 transitions. [2024-11-16 23:55:18,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-16 23:55:18,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:18,087 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:18,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 23:55:18,291 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 [2024-11-16 23:55:18,292 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:18,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:18,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1211427309, now seen corresponding path program 2 times [2024-11-16 23:55:18,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:18,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749076190] [2024-11-16 23:55:18,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:18,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:18,608 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:18,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:18,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749076190] [2024-11-16 23:55:18,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749076190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:18,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935312744] [2024-11-16 23:55:18,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 23:55:18,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:18,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:18,610 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) [2024-11-16 23:55:18,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 23:55:18,928 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 23:55:18,928 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 23:55:18,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-16 23:55:18,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:18,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 35 [2024-11-16 23:55:18,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:18,959 INFO L349 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2024-11-16 23:55:18,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 25 [2024-11-16 23:55:18,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2024-11-16 23:55:19,005 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-16 23:55:19,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2024-11-16 23:55:19,020 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-16 23:55:19,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-16 23:55:19,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-16 23:55:19,125 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:55:19,125 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 23:55:19,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935312744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:55:19,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 23:55:19,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-11-16 23:55:19,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219136607] [2024-11-16 23:55:19,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:55:19,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 23:55:19,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:19,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 23:55:19,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-16 23:55:19,127 INFO L87 Difference]: Start difference. First operand 108 states and 128 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:19,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:19,378 INFO L93 Difference]: Finished difference Result 189 states and 224 transitions. [2024-11-16 23:55:19,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 23:55:19,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-16 23:55:19,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:19,380 INFO L225 Difference]: With dead ends: 189 [2024-11-16 23:55:19,380 INFO L226 Difference]: Without dead ends: 189 [2024-11-16 23:55:19,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-11-16 23:55:19,381 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 81 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:19,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 210 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 23:55:19,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-16 23:55:19,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 142. [2024-11-16 23:55:19,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 138 states have (on average 1.2028985507246377) internal successors, (166), 140 states have internal predecessors, (166), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:19,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 168 transitions. [2024-11-16 23:55:19,386 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 168 transitions. Word has length 23 [2024-11-16 23:55:19,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:19,386 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 168 transitions. [2024-11-16 23:55:19,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:19,386 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 168 transitions. [2024-11-16 23:55:19,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-16 23:55:19,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:19,387 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:19,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 23:55:19,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:19,592 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:19,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:19,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1814475172, now seen corresponding path program 1 times [2024-11-16 23:55:19,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:19,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222374690] [2024-11-16 23:55:19,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:19,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:19,884 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:19,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:19,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222374690] [2024-11-16 23:55:19,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222374690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:19,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634599185] [2024-11-16 23:55:19,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:19,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:19,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:19,888 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) [2024-11-16 23:55:19,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 23:55:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:20,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-16 23:55:20,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:20,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2024-11-16 23:55:20,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2024-11-16 23:55:20,076 INFO L349 Elim1Store]: treesize reduction 74, result has 6.3 percent of original size [2024-11-16 23:55:20,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 193 treesize of output 160 [2024-11-16 23:55:20,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:20,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:20,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:20,094 INFO L349 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2024-11-16 23:55:20,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 33 [2024-11-16 23:55:20,103 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 10 treesize of output 8 [2024-11-16 23:55:20,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 52 [2024-11-16 23:55:20,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:20,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 16 [2024-11-16 23:55:20,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:20,179 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-11-16 23:55:20,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 43 [2024-11-16 23:55:20,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:20,197 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2024-11-16 23:55:20,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2024-11-16 23:55:20,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-16 23:55:20,267 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-11-16 23:55:20,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 42 [2024-11-16 23:55:20,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-16 23:55:20,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-16 23:55:20,438 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-16 23:55:20,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 23 [2024-11-16 23:55:20,444 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:20,444 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:20,583 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:20,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634599185] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:20,583 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:20,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2024-11-16 23:55:20,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148882631] [2024-11-16 23:55:20,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:20,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-16 23:55:20,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:20,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-16 23:55:20,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=241, Unknown=10, NotChecked=0, Total=306 [2024-11-16 23:55:20,585 INFO L87 Difference]: Start difference. First operand 142 states and 168 transitions. Second operand has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:21,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:21,317 INFO L93 Difference]: Finished difference Result 249 states and 301 transitions. [2024-11-16 23:55:21,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-16 23:55:21,318 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-16 23:55:21,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:21,318 INFO L225 Difference]: With dead ends: 249 [2024-11-16 23:55:21,318 INFO L226 Difference]: Without dead ends: 249 [2024-11-16 23:55:21,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=227, Invalid=691, Unknown=12, NotChecked=0, Total=930 [2024-11-16 23:55:21,319 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 452 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:21,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 361 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 23:55:21,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-16 23:55:21,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 166. [2024-11-16 23:55:21,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 162 states have (on average 1.2222222222222223) internal successors, (198), 164 states have internal predecessors, (198), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:21,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2024-11-16 23:55:21,325 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 24 [2024-11-16 23:55:21,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:21,325 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2024-11-16 23:55:21,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 18 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:21,325 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2024-11-16 23:55:21,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 23:55:21,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:21,326 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:21,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 23:55:21,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:21,528 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:21,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:21,528 INFO L85 PathProgramCache]: Analyzing trace with hash 372822077, now seen corresponding path program 2 times [2024-11-16 23:55:21,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:21,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681022888] [2024-11-16 23:55:21,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:21,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:55:21,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:21,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681022888] [2024-11-16 23:55:21,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681022888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:21,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53436663] [2024-11-16 23:55:21,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 23:55:21,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:21,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:21,886 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) [2024-11-16 23:55:21,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 23:55:22,296 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 23:55:22,296 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 23:55:22,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-16 23:55:22,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:22,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 33 [2024-11-16 23:55:22,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2024-11-16 23:55:22,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2024-11-16 23:55:22,344 INFO L349 Elim1Store]: treesize reduction 62, result has 7.5 percent of original size [2024-11-16 23:55:22,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 125 treesize of output 98 [2024-11-16 23:55:22,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-11-16 23:55:22,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:22,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:22,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2024-11-16 23:55:22,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:22,372 INFO L349 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2024-11-16 23:55:22,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 33 [2024-11-16 23:55:22,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-16 23:55:22,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:22,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 33 [2024-11-16 23:55:22,438 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2024-11-16 23:55:22,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2024-11-16 23:55:22,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2024-11-16 23:55:22,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-16 23:55:22,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-16 23:55:22,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 32 [2024-11-16 23:55:22,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2024-11-16 23:55:22,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2024-11-16 23:55:22,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-16 23:55:22,785 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:55:22,785 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:22,870 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1093 (Array Int Int)) (|ULTIMATE.start_main_~item~0#1.offset| Int) (v_ArrVal_1094 (Array Int Int))) (= (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base| (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base|) (+ 4 |ULTIMATE.start_main_~item~0#1.offset|) 1)) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_1093) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (+ 8 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_1094) |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))) 1)) is different from false [2024-11-16 23:55:22,889 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:22,889 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2024-11-16 23:55:22,981 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 23:55:22,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53436663] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:22,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:22,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2024-11-16 23:55:22,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319584455] [2024-11-16 23:55:22,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:22,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-16 23:55:22,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:22,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-16 23:55:22,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=291, Unknown=1, NotChecked=34, Total=380 [2024-11-16 23:55:22,983 INFO L87 Difference]: Start difference. First operand 166 states and 200 transitions. Second operand has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:23,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:23,701 INFO L93 Difference]: Finished difference Result 290 states and 354 transitions. [2024-11-16 23:55:23,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 23:55:23,701 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-16 23:55:23,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:23,702 INFO L225 Difference]: With dead ends: 290 [2024-11-16 23:55:23,702 INFO L226 Difference]: Without dead ends: 290 [2024-11-16 23:55:23,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=184, Invalid=631, Unknown=1, NotChecked=54, Total=870 [2024-11-16 23:55:23,703 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 233 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 136 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:23,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 467 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 450 Invalid, 0 Unknown, 136 Unchecked, 0.4s Time] [2024-11-16 23:55:23,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-16 23:55:23,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 217. [2024-11-16 23:55:23,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 213 states have (on average 1.2206572769953052) internal successors, (260), 215 states have internal predecessors, (260), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:23,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 262 transitions. [2024-11-16 23:55:23,709 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 262 transitions. Word has length 26 [2024-11-16 23:55:23,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:23,709 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 262 transitions. [2024-11-16 23:55:23,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:23,709 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 262 transitions. [2024-11-16 23:55:23,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-16 23:55:23,710 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:23,710 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:23,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 23:55:23,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:23,914 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:23,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:23,914 INFO L85 PathProgramCache]: Analyzing trace with hash 584172990, now seen corresponding path program 1 times [2024-11-16 23:55:23,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:23,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249755498] [2024-11-16 23:55:23,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:23,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:24,565 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:24,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:24,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249755498] [2024-11-16 23:55:24,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249755498] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:24,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191266974] [2024-11-16 23:55:24,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:24,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:24,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:24,571 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) [2024-11-16 23:55:24,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 23:55:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:24,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-16 23:55:24,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:24,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2024-11-16 23:55:24,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2024-11-16 23:55:24,793 INFO L349 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2024-11-16 23:55:24,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 93 treesize of output 83 [2024-11-16 23:55:24,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-16 23:55:24,823 INFO L349 Elim1Store]: treesize reduction 124, result has 10.8 percent of original size [2024-11-16 23:55:24,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 83 treesize of output 70 [2024-11-16 23:55:24,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 15 [2024-11-16 23:55:24,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:24,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 26 [2024-11-16 23:55:24,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-16 23:55:24,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:24,925 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-11-16 23:55:24,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 72 [2024-11-16 23:55:24,942 INFO L349 Elim1Store]: treesize reduction 29, result has 46.3 percent of original size [2024-11-16 23:55:24,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 31 [2024-11-16 23:55:24,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:24,967 INFO L349 Elim1Store]: treesize reduction 32, result has 45.8 percent of original size [2024-11-16 23:55:24,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2024-11-16 23:55:24,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:24,994 INFO L349 Elim1Store]: treesize reduction 12, result has 67.6 percent of original size [2024-11-16 23:55:24,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 37 [2024-11-16 23:55:25,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2024-11-16 23:55:25,072 INFO L349 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2024-11-16 23:55:25,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 101 treesize of output 70 [2024-11-16 23:55:25,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:25,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2024-11-16 23:55:25,608 INFO L349 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2024-11-16 23:55:25,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 104 treesize of output 47 [2024-11-16 23:55:25,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-16 23:55:25,655 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:25,655 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:25,770 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1249 (Array Int Int)) (v_ArrVal_1248 (Array Int Int)) (|ULTIMATE.start_main_~item~0#1.offset| Int)) (= 2 (let ((.cse3 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_1249)) (.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~item~0#1.base| v_ArrVal_1248))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|)) (.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))) (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base| (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~item~0#1.base|) (+ 4 |ULTIMATE.start_main_~item~0#1.offset|) 2)) (select (select .cse0 .cse1) .cse2)) (+ (select (select .cse3 .cse1) .cse2) 8)))))) is different from false [2024-11-16 23:55:25,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-16 23:55:25,787 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 63 [2024-11-16 23:55:25,889 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:25,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191266974] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:25,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:25,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 23 [2024-11-16 23:55:25,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213421256] [2024-11-16 23:55:25,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:25,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-16 23:55:25,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:25,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-16 23:55:25,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=402, Unknown=1, NotChecked=40, Total=506 [2024-11-16 23:55:25,891 INFO L87 Difference]: Start difference. First operand 217 states and 262 transitions. Second operand has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 23 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:27,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:27,170 INFO L93 Difference]: Finished difference Result 342 states and 415 transitions. [2024-11-16 23:55:27,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-16 23:55:27,170 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 23 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-16 23:55:27,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:27,172 INFO L225 Difference]: With dead ends: 342 [2024-11-16 23:55:27,172 INFO L226 Difference]: Without dead ends: 342 [2024-11-16 23:55:27,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=222, Invalid=903, Unknown=1, NotChecked=64, Total=1190 [2024-11-16 23:55:27,173 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 255 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 154 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:27,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 572 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 597 Invalid, 0 Unknown, 154 Unchecked, 0.6s Time] [2024-11-16 23:55:27,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-16 23:55:27,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 260. [2024-11-16 23:55:27,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 256 states have (on average 1.22265625) internal successors, (313), 258 states have internal predecessors, (313), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:27,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 315 transitions. [2024-11-16 23:55:27,178 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 315 transitions. Word has length 26 [2024-11-16 23:55:27,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:27,179 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 315 transitions. [2024-11-16 23:55:27,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 23 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:27,179 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 315 transitions. [2024-11-16 23:55:27,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-16 23:55:27,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:27,180 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:27,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-16 23:55:27,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:27,385 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:27,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:27,385 INFO L85 PathProgramCache]: Analyzing trace with hash -887803836, now seen corresponding path program 2 times [2024-11-16 23:55:27,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:27,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119833484] [2024-11-16 23:55:27,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:27,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:27,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:55:27,892 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:27,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:55:27,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119833484] [2024-11-16 23:55:27,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119833484] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 23:55:27,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279343354] [2024-11-16 23:55:27,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-16 23:55:27,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 23:55:27,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:55:27,896 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 23:55:27,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 23:55:28,123 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-16 23:55:28,123 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-16 23:55:28,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-16 23:55:28,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 23:55:28,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-11-16 23:55:28,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2024-11-16 23:55:28,175 INFO L349 Elim1Store]: treesize reduction 62, result has 21.5 percent of original size [2024-11-16 23:55:28,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 84 [2024-11-16 23:55:28,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-16 23:55:28,190 INFO L349 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2024-11-16 23:55:28,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 43 [2024-11-16 23:55:28,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-16 23:55:28,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:28,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 45 [2024-11-16 23:55:28,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 23 [2024-11-16 23:55:28,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 31 [2024-11-16 23:55:28,370 INFO L349 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2024-11-16 23:55:28,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 129 treesize of output 80 [2024-11-16 23:55:28,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:28,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 82 [2024-11-16 23:55:28,622 INFO L349 Elim1Store]: treesize reduction 64, result has 9.9 percent of original size [2024-11-16 23:55:28,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 129 treesize of output 73 [2024-11-16 23:55:28,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-16 23:55:28,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 69 [2024-11-16 23:55:28,912 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:28,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 23:55:35,358 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:55:35,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279343354] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 23:55:35,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 23:55:35,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-16 23:55:35,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526773112] [2024-11-16 23:55:35,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 23:55:35,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-16 23:55:35,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:55:35,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-16 23:55:35,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=377, Unknown=1, NotChecked=0, Total=462 [2024-11-16 23:55:35,359 INFO L87 Difference]: Start difference. First operand 260 states and 315 transitions. Second operand has 22 states, 22 states have (on average 3.409090909090909) internal successors, (75), 22 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:36,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 23:55:36,066 INFO L93 Difference]: Finished difference Result 287 states and 345 transitions. [2024-11-16 23:55:36,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-16 23:55:36,066 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.409090909090909) internal successors, (75), 22 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-16 23:55:36,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 23:55:36,067 INFO L225 Difference]: With dead ends: 287 [2024-11-16 23:55:36,067 INFO L226 Difference]: Without dead ends: 287 [2024-11-16 23:55:36,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=151, Invalid=604, Unknown=1, NotChecked=0, Total=756 [2024-11-16 23:55:36,068 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 101 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 23:55:36,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 451 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 23:55:36,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-16 23:55:36,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 268. [2024-11-16 23:55:36,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 264 states have (on average 1.2159090909090908) internal successors, (321), 266 states have internal predecessors, (321), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:36,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 323 transitions. [2024-11-16 23:55:36,072 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 323 transitions. Word has length 30 [2024-11-16 23:55:36,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 23:55:36,072 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 323 transitions. [2024-11-16 23:55:36,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.409090909090909) internal successors, (75), 22 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 23:55:36,072 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 323 transitions. [2024-11-16 23:55:36,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-16 23:55:36,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 23:55:36,073 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:36,088 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-16 23:55:36,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 23:55:36,274 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-16 23:55:36,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:55:36,274 INFO L85 PathProgramCache]: Analyzing trace with hash -996471695, now seen corresponding path program 1 times [2024-11-16 23:55:36,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:55:36,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237633136] [2024-11-16 23:55:36,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:55:36,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:55:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:55:36,330 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:55:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:55:36,371 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:55:36,374 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:55:36,375 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2024-11-16 23:55:36,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2024-11-16 23:55:36,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 23:55:36,379 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:55:36,402 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 23:55:36,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:55:36 BoogieIcfgContainer [2024-11-16 23:55:36,406 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 23:55:36,406 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 23:55:36,407 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 23:55:36,407 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 23:55:36,407 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:55:11" (3/4) ... [2024-11-16 23:55:36,408 INFO L137 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-16 23:55:36,446 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 23:55:36,447 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 23:55:36,447 INFO L158 Benchmark]: Toolchain (without parser) took 25624.01ms. Allocated memory was 180.4MB in the beginning and 398.5MB in the end (delta: 218.1MB). Free memory was 101.5MB in the beginning and 130.4MB in the end (delta: -29.0MB). Peak memory consumption was 192.2MB. Max. memory is 16.1GB. [2024-11-16 23:55:36,447 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 23:55:36,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.90ms. Allocated memory is still 180.4MB. Free memory was 101.3MB in the beginning and 144.5MB in the end (delta: -43.2MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2024-11-16 23:55:36,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.48ms. Allocated memory is still 180.4MB. Free memory was 143.7MB in the beginning and 141.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 23:55:36,448 INFO L158 Benchmark]: Boogie Preprocessor took 31.88ms. Allocated memory is still 180.4MB. Free memory was 141.6MB in the beginning and 139.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 23:55:36,449 INFO L158 Benchmark]: IcfgBuilder took 351.13ms. Allocated memory is still 180.4MB. Free memory was 139.5MB in the beginning and 118.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-16 23:55:36,449 INFO L158 Benchmark]: TraceAbstraction took 24533.53ms. Allocated memory was 180.4MB in the beginning and 398.5MB in the end (delta: 218.1MB). Free memory was 117.7MB in the beginning and 133.6MB in the end (delta: -15.9MB). Peak memory consumption was 203.9MB. Max. memory is 16.1GB. [2024-11-16 23:55:36,449 INFO L158 Benchmark]: Witness Printer took 40.21ms. Allocated memory is still 398.5MB. Free memory was 133.6MB in the beginning and 130.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 23:55:36,450 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.90ms. Allocated memory is still 180.4MB. Free memory was 101.3MB in the beginning and 144.5MB in the end (delta: -43.2MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.48ms. Allocated memory is still 180.4MB. Free memory was 143.7MB in the beginning and 141.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.88ms. Allocated memory is still 180.4MB. Free memory was 141.6MB in the beginning and 139.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 351.13ms. Allocated memory is still 180.4MB. Free memory was 139.5MB in the beginning and 118.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 24533.53ms. Allocated memory was 180.4MB in the beginning and 398.5MB in the end (delta: 218.1MB). Free memory was 117.7MB in the beginning and 133.6MB in the end (delta: -15.9MB). Peak memory consumption was 203.9MB. Max. memory is 16.1GB. * Witness Printer took 40.21ms. Allocated memory is still 398.5MB. Free memory was 133.6MB in the beginning and 130.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 985]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1004] BCK* bucket = malloc(sizeof(BCK)); [L1005] bucket->data = 0 [L1006] bucket->list = ((void*)0) [L1008] bucket->next = malloc(sizeof(BCK)) [L1009] EXPR bucket->next [L1009] BCK* bcki = bucket->next; [L1010] bcki->data = 1 [L1011] bcki->list = ((void*)0) [L1013] bcki->next = malloc(sizeof(BCK)) [L1014] EXPR bcki->next [L1014] bcki = bcki->next [L1015] bcki->data = 2 [L1016] bcki->list = ((void*)0) [L1017] bcki->next = ((void*)0) [L1019] struct TSLL* item = ((void*)0); [L1020] struct TSLL* itr = ((void*)0); VAL [bucket={-3:0}] [L1021] COND TRUE __VERIFIER_nondet_int() [L1023] item = malloc(sizeof(SLL)) [L1024] item->next = ((void*)0) [L1025] COND TRUE __VERIFIER_nondet_int() [L1026] item->data = 0 [L1032] bcki = bucket VAL [bcki={-3:0}, bucket={-3:0}, item={-4:0}] [L1034] COND FALSE !(!(bcki != ((void*)0))) VAL [bcki={-3:0}, bucket={-3:0}, item={-4:0}] [L1034] COND FALSE !(0) VAL [bcki={-3:0}, bucket={-3:0}, item={-4:0}] [L1035] COND FALSE !(!(item != ((void*)0))) VAL [bcki={-3:0}, bucket={-3:0}, item={-4:0}] [L1035] COND FALSE !(0) VAL [bcki={-3:0}, bucket={-3:0}, item={-4:0}] [L1036] EXPR bcki->data [L1036] EXPR item->data [L1036] COND FALSE !(bcki->data != item->data) [L1038] COND FALSE !(!(bcki != ((void*)0))) VAL [bcki={-3:0}, bucket={-3:0}, item={-4:0}] [L1038] COND FALSE !(0) VAL [bcki={-3:0}, bucket={-3:0}, item={-4:0}] [L1040] EXPR bcki->list [L1040] COND TRUE bcki->list == ((void*)0) [L1041] bcki->list = item [L1021] COND FALSE !(__VERIFIER_nondet_int()) [L1052] bcki = bucket VAL [bcki={-3:0}] [L1053] COND TRUE bcki != ((void*)0) [L1055] EXPR bcki->list [L1055] item = bcki->list [L1056] bcki->list = ((void*)0) [L1057] COND TRUE item != ((void*)0) [L1059] itr = item [L1060] EXPR item->next [L1060] item = item->next [L1061] EXPR itr->data [L1061] EXPR bcki->data [L1061] COND TRUE !(itr->data != bcki->data) [L1061] CALL reach_error() [L985] COND FALSE !(0) [L985] __assert_fail ("0", "sll-buckets-2.c", 14, __extension__ __PRETTY_FUNCTION__) - UnprovableResult [Line: 1001]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 58 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 24.5s, OverallIterations: 13, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1782 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1782 mSDsluCounter, 3231 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 442 IncrementalHoareTripleChecker+Unchecked, 2660 mSDsCounter, 186 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2465 IncrementalHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 186 mSolverCounterUnsat, 571 mSDtfsCounter, 2465 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 488 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=268occurred in iteration=12, InterpolantAutomatonStates: 124, 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, 12 MinimizatonAttempts, 421 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 15.2s InterpolantComputationTime, 457 NumberOfCodeBlocks, 457 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 566 ConstructedInterpolants, 51 QuantifiedInterpolants, 16224 SizeOfPredicates, 48 NumberOfNonLiveVariables, 1903 ConjunctsInSsa, 360 ConjunctsInUnsatCore, 27 InterpolantComputations, 5 PerfectInterpolantSequences, 54/174 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-16 23:55:36,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)