./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/forester-heap/sll-buckets-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/forester-heap/sll-buckets-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c6b726a83620fff2a21a6dbfdec50e244c1786dd86dd76b1719515a59b3627ac --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 18:55:58,323 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 18:55:58,382 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 18:55:58,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 18:55:58,387 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 18:55:58,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 18:55:58,423 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 18:55:58,423 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 18:55:58,424 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 18:55:58,425 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 18:55:58,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 18:55:58,425 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 18:55:58,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 18:55:58,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 18:55:58,426 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 18:55:58,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 18:55:58,428 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 18:55:58,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 18:55:58,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 18:55:58,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 18:55:58,429 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 18:55:58,432 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 18:55:58,432 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 18:55:58,433 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 18:55:58,433 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 18:55:58,433 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 18:55:58,433 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 18:55:58,433 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 18:55:58,433 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 18:55:58,434 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 18:55:58,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 18:55:58,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 18:55:58,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 18:55:58,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:55:58,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 18:55:58,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 18:55:58,435 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 18:55:58,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 18:55:58,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 18:55:58,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 18:55:58,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 18:55:58,435 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 18:55:58,436 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6b726a83620fff2a21a6dbfdec50e244c1786dd86dd76b1719515a59b3627ac [2024-11-22 18:55:58,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 18:55:58,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 18:55:58,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 18:55:58,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 18:55:58,674 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 18:55:58,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/sll-buckets-1.i [2024-11-22 18:55:59,857 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 18:56:00,033 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 18:56:00,033 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/sll-buckets-1.i [2024-11-22 18:56:00,042 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32d5521dd/51ba5df1189f4cb0afa4c5534f5ad137/FLAG19e2487e6 [2024-11-22 18:56:00,052 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32d5521dd/51ba5df1189f4cb0afa4c5534f5ad137 [2024-11-22 18:56:00,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 18:56:00,055 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 18:56:00,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 18:56:00,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 18:56:00,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 18:56:00,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:56:00" (1/1) ... [2024-11-22 18:56:00,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30d56006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:00, skipping insertion in model container [2024-11-22 18:56:00,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:56:00" (1/1) ... [2024-11-22 18:56:00,093 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 18:56:00,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:56:00,367 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 18:56:00,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 18:56:00,441 INFO L204 MainTranslator]: Completed translation [2024-11-22 18:56:00,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:00 WrapperNode [2024-11-22 18:56:00,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 18:56:00,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 18:56:00,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 18:56:00,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 18:56:00,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:00" (1/1) ... [2024-11-22 18:56:00,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:00" (1/1) ... [2024-11-22 18:56:00,477 INFO L138 Inliner]: procedures = 119, calls = 47, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 161 [2024-11-22 18:56:00,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 18:56:00,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 18:56:00,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 18:56:00,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 18:56:00,489 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:00" (1/1) ... [2024-11-22 18:56:00,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:00" (1/1) ... [2024-11-22 18:56:00,496 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:00" (1/1) ... [2024-11-22 18:56:00,509 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]. [2024-11-22 18:56:00,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:00" (1/1) ... [2024-11-22 18:56:00,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:00" (1/1) ... [2024-11-22 18:56:00,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:00" (1/1) ... [2024-11-22 18:56:00,522 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:00" (1/1) ... [2024-11-22 18:56:00,523 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:00" (1/1) ... [2024-11-22 18:56:00,524 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:00" (1/1) ... [2024-11-22 18:56:00,529 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 18:56:00,529 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 18:56:00,529 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 18:56:00,529 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 18:56:00,530 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:00" (1/1) ... [2024-11-22 18:56:00,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 18:56:00,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:00,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 18:56:00,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 18:56:00,616 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-22 18:56:00,617 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-22 18:56:00,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 18:56:00,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 18:56:00,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 18:56:00,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 18:56:00,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 18:56:00,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 18:56:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 18:56:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 18:56:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 18:56:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 18:56:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 18:56:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 18:56:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 18:56:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 18:56:00,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 18:56:00,721 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 18:56:00,722 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 18:56:00,985 INFO L? ?]: Removed 143 outVars from TransFormulas that were not future-live. [2024-11-22 18:56:00,987 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 18:56:00,999 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 18:56:01,002 INFO L316 CfgBuilder]: Removed 15 assume(true) statements. [2024-11-22 18:56:01,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:56:01 BoogieIcfgContainer [2024-11-22 18:56:01,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 18:56:01,004 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 18:56:01,004 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 18:56:01,007 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 18:56:01,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:56:00" (1/3) ... [2024-11-22 18:56:01,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7f8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:56:01, skipping insertion in model container [2024-11-22 18:56:01,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:56:00" (2/3) ... [2024-11-22 18:56:01,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7f8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:56:01, skipping insertion in model container [2024-11-22 18:56:01,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:56:01" (3/3) ... [2024-11-22 18:56:01,009 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-buckets-1.i [2024-11-22 18:56:01,021 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 18:56:01,022 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 68 error locations. [2024-11-22 18:56:01,066 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 18:56:01,072 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;@31ed4f1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 18:56:01,073 INFO L334 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2024-11-22 18:56:01,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 85 states have (on average 2.1411764705882352) internal successors, (182), 153 states have internal predecessors, (182), 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) [2024-11-22 18:56:01,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-22 18:56:01,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:01,081 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-22 18:56:01,082 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:01,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:01,087 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2024-11-22 18:56:01,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:01,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805190413] [2024-11-22 18:56:01,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:01,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:01,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:01,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:01,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805190413] [2024-11-22 18:56:01,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805190413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:01,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:01,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:56:01,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792019726] [2024-11-22 18:56:01,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:01,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:56:01,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:01,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:56:01,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:01,303 INFO L87 Difference]: Start difference. First operand has 160 states, 85 states have (on average 2.1411764705882352) internal successors, (182), 153 states have internal predecessors, (182), 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 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:01,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:01,463 INFO L93 Difference]: Finished difference Result 149 states and 160 transitions. [2024-11-22 18:56:01,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:56:01,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-22 18:56:01,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:01,473 INFO L225 Difference]: With dead ends: 149 [2024-11-22 18:56:01,473 INFO L226 Difference]: Without dead ends: 147 [2024-11-22 18:56:01,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:01,478 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 95 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:01,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 138 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:01,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-22 18:56:01,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-22 18:56:01,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 78 states have (on average 1.9615384615384615) internal successors, (153), 145 states have internal predecessors, (153), 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) [2024-11-22 18:56:01,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2024-11-22 18:56:01,531 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 3 [2024-11-22 18:56:01,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:01,531 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2024-11-22 18:56:01,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:01,531 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2024-11-22 18:56:01,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-22 18:56:01,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:01,532 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-22 18:56:01,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 18:56:01,532 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:01,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:01,533 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2024-11-22 18:56:01,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:01,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939356914] [2024-11-22 18:56:01,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:01,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:01,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:01,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:01,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939356914] [2024-11-22 18:56:01,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939356914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:01,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:01,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:56:01,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538569575] [2024-11-22 18:56:01,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:01,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:56:01,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:01,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:56:01,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:01,632 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:01,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:01,725 INFO L93 Difference]: Finished difference Result 146 states and 158 transitions. [2024-11-22 18:56:01,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:56:01,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-22 18:56:01,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:01,727 INFO L225 Difference]: With dead ends: 146 [2024-11-22 18:56:01,727 INFO L226 Difference]: Without dead ends: 146 [2024-11-22 18:56:01,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:01,728 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 32 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:01,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 204 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:01,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-22 18:56:01,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2024-11-22 18:56:01,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 78 states have (on average 1.9102564102564104) internal successors, (149), 141 states have internal predecessors, (149), 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) [2024-11-22 18:56:01,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 154 transitions. [2024-11-22 18:56:01,744 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 154 transitions. Word has length 3 [2024-11-22 18:56:01,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:01,744 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 154 transitions. [2024-11-22 18:56:01,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:01,744 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 154 transitions. [2024-11-22 18:56:01,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-22 18:56:01,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:01,745 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:01,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 18:56:01,746 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:01,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:01,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1572644694, now seen corresponding path program 1 times [2024-11-22 18:56:01,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:01,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170797835] [2024-11-22 18:56:01,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:01,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:01,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:01,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:01,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:01,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170797835] [2024-11-22 18:56:01,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170797835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:01,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:01,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:56:01,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140955332] [2024-11-22 18:56:01,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:01,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:56:01,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:01,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:56:01,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:56:01,939 INFO L87 Difference]: Start difference. First operand 143 states and 154 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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) [2024-11-22 18:56:02,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:02,171 INFO L93 Difference]: Finished difference Result 146 states and 161 transitions. [2024-11-22 18:56:02,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 18:56:02,172 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 [2024-11-22 18:56:02,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:02,174 INFO L225 Difference]: With dead ends: 146 [2024-11-22 18:56:02,175 INFO L226 Difference]: Without dead ends: 146 [2024-11-22 18:56:02,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 18:56:02,177 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 43 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:02,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 339 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 18:56:02,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-22 18:56:02,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 141. [2024-11-22 18:56:02,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 87 states have (on average 1.7816091954022988) internal successors, (155), 139 states have internal predecessors, (155), 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) [2024-11-22 18:56:02,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 160 transitions. [2024-11-22 18:56:02,189 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 160 transitions. Word has length 10 [2024-11-22 18:56:02,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:02,189 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 160 transitions. [2024-11-22 18:56:02,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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) [2024-11-22 18:56:02,191 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 160 transitions. [2024-11-22 18:56:02,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-22 18:56:02,191 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:02,191 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:02,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 18:56:02,192 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:02,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:02,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1572644693, now seen corresponding path program 1 times [2024-11-22 18:56:02,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:02,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965952487] [2024-11-22 18:56:02,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:02,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:02,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:02,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:02,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965952487] [2024-11-22 18:56:02,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965952487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:02,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:02,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:56:02,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109783666] [2024-11-22 18:56:02,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:02,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:56:02,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:02,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:56:02,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:56:02,416 INFO L87 Difference]: Start difference. First operand 141 states and 160 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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) [2024-11-22 18:56:02,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:02,595 INFO L93 Difference]: Finished difference Result 137 states and 156 transitions. [2024-11-22 18:56:02,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 18:56:02,595 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 [2024-11-22 18:56:02,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:02,596 INFO L225 Difference]: With dead ends: 137 [2024-11-22 18:56:02,596 INFO L226 Difference]: Without dead ends: 137 [2024-11-22 18:56:02,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 18:56:02,598 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 6 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:02,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 426 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 18:56:02,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-22 18:56:02,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-22 18:56:02,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 87 states have (on average 1.735632183908046) internal successors, (151), 135 states have internal predecessors, (151), 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) [2024-11-22 18:56:02,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 156 transitions. [2024-11-22 18:56:02,603 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 156 transitions. Word has length 10 [2024-11-22 18:56:02,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:02,603 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 156 transitions. [2024-11-22 18:56:02,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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) [2024-11-22 18:56:02,603 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 156 transitions. [2024-11-22 18:56:02,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-22 18:56:02,604 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:02,604 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:02,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 18:56:02,604 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:02,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:02,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1152100857, now seen corresponding path program 1 times [2024-11-22 18:56:02,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:02,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659476449] [2024-11-22 18:56:02,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:02,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:02,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:02,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:02,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659476449] [2024-11-22 18:56:02,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659476449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:02,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:02,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:56:02,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423847109] [2024-11-22 18:56:02,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:02,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:56:02,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:02,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:56:02,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:56:02,705 INFO L87 Difference]: Start difference. First operand 137 states and 156 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:02,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:02,877 INFO L93 Difference]: Finished difference Result 141 states and 156 transitions. [2024-11-22 18:56:02,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:56:02,877 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2024-11-22 18:56:02,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:02,878 INFO L225 Difference]: With dead ends: 141 [2024-11-22 18:56:02,878 INFO L226 Difference]: Without dead ends: 141 [2024-11-22 18:56:02,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 18:56:02,879 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 40 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:02,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 331 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 18:56:02,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-22 18:56:02,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 136. [2024-11-22 18:56:02,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 87 states have (on average 1.7241379310344827) internal successors, (150), 134 states have internal predecessors, (150), 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) [2024-11-22 18:56:02,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 155 transitions. [2024-11-22 18:56:02,889 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 155 transitions. Word has length 17 [2024-11-22 18:56:02,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:02,889 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 155 transitions. [2024-11-22 18:56:02,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:02,889 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 155 transitions. [2024-11-22 18:56:02,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-22 18:56:02,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:02,889 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:02,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 18:56:02,890 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:02,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:02,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1152100858, now seen corresponding path program 1 times [2024-11-22 18:56:02,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:02,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840383301] [2024-11-22 18:56:02,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:02,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:03,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:03,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:03,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840383301] [2024-11-22 18:56:03,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840383301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:03,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:03,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 18:56:03,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785940256] [2024-11-22 18:56:03,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:03,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 18:56:03,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:03,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 18:56:03,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:56:03,080 INFO L87 Difference]: Start difference. First operand 136 states and 155 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:03,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:03,227 INFO L93 Difference]: Finished difference Result 133 states and 152 transitions. [2024-11-22 18:56:03,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:56:03,229 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2024-11-22 18:56:03,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:03,230 INFO L225 Difference]: With dead ends: 133 [2024-11-22 18:56:03,230 INFO L226 Difference]: Without dead ends: 133 [2024-11-22 18:56:03,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 18:56:03,231 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 2 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:03,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 415 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:03,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-22 18:56:03,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-22 18:56:03,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 87 states have (on average 1.6896551724137931) internal successors, (147), 131 states have internal predecessors, (147), 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) [2024-11-22 18:56:03,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 152 transitions. [2024-11-22 18:56:03,235 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 152 transitions. Word has length 17 [2024-11-22 18:56:03,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:03,235 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 152 transitions. [2024-11-22 18:56:03,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:03,235 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 152 transitions. [2024-11-22 18:56:03,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-22 18:56:03,236 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:03,236 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:03,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 18:56:03,236 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:03,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:03,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1679348963, now seen corresponding path program 1 times [2024-11-22 18:56:03,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:03,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661413595] [2024-11-22 18:56:03,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:03,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:03,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:03,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:03,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661413595] [2024-11-22 18:56:03,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661413595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:03,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:03,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:56:03,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006358050] [2024-11-22 18:56:03,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:03,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:56:03,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:03,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:56:03,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:03,340 INFO L87 Difference]: Start difference. First operand 133 states and 152 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:03,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:03,416 INFO L93 Difference]: Finished difference Result 128 states and 147 transitions. [2024-11-22 18:56:03,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:56:03,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-22 18:56:03,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:03,417 INFO L225 Difference]: With dead ends: 128 [2024-11-22 18:56:03,417 INFO L226 Difference]: Without dead ends: 128 [2024-11-22 18:56:03,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:03,418 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 47 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:03,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 140 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:03,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-22 18:56:03,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-11-22 18:56:03,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 87 states have (on average 1.632183908045977) internal successors, (142), 126 states have internal predecessors, (142), 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) [2024-11-22 18:56:03,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2024-11-22 18:56:03,423 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 23 [2024-11-22 18:56:03,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:03,424 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2024-11-22 18:56:03,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:03,424 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2024-11-22 18:56:03,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-22 18:56:03,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:03,424 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:03,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 18:56:03,425 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:03,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:03,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1679348962, now seen corresponding path program 1 times [2024-11-22 18:56:03,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:03,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543088952] [2024-11-22 18:56:03,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:03,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:03,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:03,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:03,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543088952] [2024-11-22 18:56:03,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543088952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:03,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:03,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 18:56:03,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969471434] [2024-11-22 18:56:03,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:03,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:56:03,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:03,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:56:03,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:03,466 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:03,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:03,520 INFO L93 Difference]: Finished difference Result 123 states and 142 transitions. [2024-11-22 18:56:03,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:56:03,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2024-11-22 18:56:03,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:03,521 INFO L225 Difference]: With dead ends: 123 [2024-11-22 18:56:03,521 INFO L226 Difference]: Without dead ends: 123 [2024-11-22 18:56:03,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:03,522 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 47 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:03,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 140 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:03,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-22 18:56:03,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-22 18:56:03,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 87 states have (on average 1.5747126436781609) internal successors, (137), 121 states have internal predecessors, (137), 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) [2024-11-22 18:56:03,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2024-11-22 18:56:03,526 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 23 [2024-11-22 18:56:03,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:03,526 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2024-11-22 18:56:03,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:03,526 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2024-11-22 18:56:03,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-22 18:56:03,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:03,527 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 18:56:03,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 18:56:03,527 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:03,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:03,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1053271056, now seen corresponding path program 1 times [2024-11-22 18:56:03,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:03,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056501173] [2024-11-22 18:56:03,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:03,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:03,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:03,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:03,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:03,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056501173] [2024-11-22 18:56:03,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056501173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:03,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:03,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:56:03,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482962033] [2024-11-22 18:56:03,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:03,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 18:56:03,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:03,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 18:56:03,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 18:56:03,631 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:03,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:03,763 INFO L93 Difference]: Finished difference Result 137 states and 155 transitions. [2024-11-22 18:56:03,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 18:56:03,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-22 18:56:03,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:03,764 INFO L225 Difference]: With dead ends: 137 [2024-11-22 18:56:03,764 INFO L226 Difference]: Without dead ends: 137 [2024-11-22 18:56:03,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 18:56:03,765 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 104 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:03,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 146 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:03,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-22 18:56:03,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 130. [2024-11-22 18:56:03,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 94 states have (on average 1.5851063829787233) internal successors, (149), 128 states have internal predecessors, (149), 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) [2024-11-22 18:56:03,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 154 transitions. [2024-11-22 18:56:03,768 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 154 transitions. Word has length 25 [2024-11-22 18:56:03,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:03,772 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 154 transitions. [2024-11-22 18:56:03,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:03,772 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 154 transitions. [2024-11-22 18:56:03,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-22 18:56:03,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:03,773 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 18:56:03,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 18:56:03,773 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:03,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:03,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1053271055, now seen corresponding path program 1 times [2024-11-22 18:56:03,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:03,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383168612] [2024-11-22 18:56:03,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:03,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:04,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:04,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383168612] [2024-11-22 18:56:04,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383168612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:04,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:04,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 18:56:04,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390638175] [2024-11-22 18:56:04,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:04,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 18:56:04,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:04,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 18:56:04,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-22 18:56:04,027 INFO L87 Difference]: Start difference. First operand 130 states and 154 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:04,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:04,245 INFO L93 Difference]: Finished difference Result 179 states and 214 transitions. [2024-11-22 18:56:04,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 18:56:04,245 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-22 18:56:04,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:04,246 INFO L225 Difference]: With dead ends: 179 [2024-11-22 18:56:04,246 INFO L226 Difference]: Without dead ends: 179 [2024-11-22 18:56:04,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-22 18:56:04,247 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 117 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:04,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 230 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 18:56:04,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-22 18:56:04,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 168. [2024-11-22 18:56:04,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 132 states have (on average 1.5606060606060606) internal successors, (206), 166 states have internal predecessors, (206), 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) [2024-11-22 18:56:04,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 211 transitions. [2024-11-22 18:56:04,252 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 211 transitions. Word has length 25 [2024-11-22 18:56:04,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:04,252 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 211 transitions. [2024-11-22 18:56:04,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:04,252 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 211 transitions. [2024-11-22 18:56:04,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-22 18:56:04,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:04,253 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 18:56:04,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 18:56:04,253 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:04,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:04,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1708336580, now seen corresponding path program 1 times [2024-11-22 18:56:04,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:04,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692110762] [2024-11-22 18:56:04,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:04,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:04,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:04,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:04,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692110762] [2024-11-22 18:56:04,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692110762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:04,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:04,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 18:56:04,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878632384] [2024-11-22 18:56:04,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:04,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:56:04,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:04,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:56:04,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:56:04,310 INFO L87 Difference]: Start difference. First operand 168 states and 211 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:04,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:04,374 INFO L93 Difference]: Finished difference Result 181 states and 216 transitions. [2024-11-22 18:56:04,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:56:04,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-11-22 18:56:04,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:04,375 INFO L225 Difference]: With dead ends: 181 [2024-11-22 18:56:04,375 INFO L226 Difference]: Without dead ends: 181 [2024-11-22 18:56:04,375 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 [2024-11-22 18:56:04,376 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 107 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:04,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 209 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:04,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-22 18:56:04,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 167. [2024-11-22 18:56:04,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 132 states have (on average 1.5378787878787878) internal successors, (203), 165 states have internal predecessors, (203), 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) [2024-11-22 18:56:04,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 207 transitions. [2024-11-22 18:56:04,379 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 207 transitions. Word has length 26 [2024-11-22 18:56:04,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:04,379 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 207 transitions. [2024-11-22 18:56:04,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:04,379 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 207 transitions. [2024-11-22 18:56:04,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-22 18:56:04,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:04,380 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-22 18:56:04,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 18:56:04,380 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:04,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:04,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1964988210, now seen corresponding path program 1 times [2024-11-22 18:56:04,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:04,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858800197] [2024-11-22 18:56:04,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:04,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:04,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:04,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:04,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858800197] [2024-11-22 18:56:04,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858800197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:04,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:04,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-22 18:56:04,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888282593] [2024-11-22 18:56:04,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:04,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 18:56:04,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:04,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 18:56:04,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-22 18:56:04,953 INFO L87 Difference]: Start difference. First operand 167 states and 207 transitions. Second operand has 16 states, 16 states have (on average 1.8125) internal successors, (29), 16 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:05,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:05,358 INFO L93 Difference]: Finished difference Result 181 states and 220 transitions. [2024-11-22 18:56:05,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 18:56:05,358 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.8125) internal successors, (29), 16 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-22 18:56:05,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:05,359 INFO L225 Difference]: With dead ends: 181 [2024-11-22 18:56:05,359 INFO L226 Difference]: Without dead ends: 181 [2024-11-22 18:56:05,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2024-11-22 18:56:05,360 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 125 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:05,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 415 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 18:56:05,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-22 18:56:05,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 174. [2024-11-22 18:56:05,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 140 states have (on average 1.4857142857142858) internal successors, (208), 172 states have internal predecessors, (208), 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) [2024-11-22 18:56:05,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 211 transitions. [2024-11-22 18:56:05,363 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 211 transitions. Word has length 29 [2024-11-22 18:56:05,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:05,363 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 211 transitions. [2024-11-22 18:56:05,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.8125) internal successors, (29), 16 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:05,363 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 211 transitions. [2024-11-22 18:56:05,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-22 18:56:05,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:05,364 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2024-11-22 18:56:05,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 18:56:05,364 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:05,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:05,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1048938843, now seen corresponding path program 1 times [2024-11-22 18:56:05,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:05,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921930982] [2024-11-22 18:56:05,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:05,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:05,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:05,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:05,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921930982] [2024-11-22 18:56:05,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921930982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:05,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:05,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:56:05,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448204744] [2024-11-22 18:56:05,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:05,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 18:56:05,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:05,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 18:56:05,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 18:56:05,404 INFO L87 Difference]: Start difference. First operand 174 states and 211 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-22 18:56:05,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:05,422 INFO L93 Difference]: Finished difference Result 173 states and 209 transitions. [2024-11-22 18:56:05,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 18:56:05,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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 33 [2024-11-22 18:56:05,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:05,423 INFO L225 Difference]: With dead ends: 173 [2024-11-22 18:56:05,423 INFO L226 Difference]: Without dead ends: 173 [2024-11-22 18:56:05,423 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 [2024-11-22 18:56:05,424 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 38 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:05,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 173 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 18:56:05,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-22 18:56:05,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-22 18:56:05,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 140 states have (on average 1.4785714285714286) internal successors, (207), 171 states have internal predecessors, (207), 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) [2024-11-22 18:56:05,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 209 transitions. [2024-11-22 18:56:05,428 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 209 transitions. Word has length 33 [2024-11-22 18:56:05,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:05,428 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 209 transitions. [2024-11-22 18:56:05,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-22 18:56:05,428 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 209 transitions. [2024-11-22 18:56:05,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-22 18:56:05,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:05,429 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:05,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 18:56:05,430 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONMEMORY_FREE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:05,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:05,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1547740791, now seen corresponding path program 1 times [2024-11-22 18:56:05,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:05,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946803968] [2024-11-22 18:56:05,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:05,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:05,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:05,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:05,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946803968] [2024-11-22 18:56:05,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946803968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:05,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 18:56:05,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 18:56:05,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759077108] [2024-11-22 18:56:05,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:05,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 18:56:05,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:05,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 18:56:05,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 18:56:05,516 INFO L87 Difference]: Start difference. First operand 173 states and 209 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:05,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:05,598 INFO L93 Difference]: Finished difference Result 184 states and 212 transitions. [2024-11-22 18:56:05,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 18:56:05,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 35 [2024-11-22 18:56:05,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:05,599 INFO L225 Difference]: With dead ends: 184 [2024-11-22 18:56:05,599 INFO L226 Difference]: Without dead ends: 184 [2024-11-22 18:56:05,600 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 [2024-11-22 18:56:05,600 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 94 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:05,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 222 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 18:56:05,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-22 18:56:05,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 175. [2024-11-22 18:56:05,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 142 states have (on average 1.471830985915493) internal successors, (209), 173 states have internal predecessors, (209), 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) [2024-11-22 18:56:05,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 211 transitions. [2024-11-22 18:56:05,604 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 211 transitions. Word has length 35 [2024-11-22 18:56:05,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:05,604 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 211 transitions. [2024-11-22 18:56:05,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:05,604 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 211 transitions. [2024-11-22 18:56:05,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-22 18:56:05,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:05,605 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:05,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 18:56:05,605 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:05,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:05,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1044275572, now seen corresponding path program 1 times [2024-11-22 18:56:05,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:05,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500164286] [2024-11-22 18:56:05,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:05,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:06,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:06,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:06,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500164286] [2024-11-22 18:56:06,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500164286] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:56:06,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079676164] [2024-11-22 18:56:06,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:06,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:06,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:06,160 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 18:56:06,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 18:56:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:06,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-22 18:56:06,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:56:06,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 18:56:06,343 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-22 18:56:06,344 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 [2024-11-22 18:56:06,366 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 18:56:06,414 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 16 treesize of output 11 [2024-11-22 18:56:06,426 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 16 treesize of output 11 [2024-11-22 18:56:06,439 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-22 18:56:06,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2024-11-22 18:56:06,450 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 11 [2024-11-22 18:56:06,577 INFO L349 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2024-11-22 18:56:06,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 44 [2024-11-22 18:56:06,586 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 12 treesize of output 8 [2024-11-22 18:56:06,667 INFO L349 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2024-11-22 18:56:06,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 51 [2024-11-22 18:56:06,720 INFO L349 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2024-11-22 18:56:06,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 51 [2024-11-22 18:56:06,786 INFO L349 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2024-11-22 18:56:06,786 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 16 treesize of output 18 [2024-11-22 18:56:06,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-22 18:56:06,830 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 18:56:06,830 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 26 treesize of output 23 [2024-11-22 18:56:06,836 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 14 treesize of output 10 [2024-11-22 18:56:06,943 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 18:56:06,944 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 41 treesize of output 38 [2024-11-22 18:56:06,978 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 14 treesize of output 10 [2024-11-22 18:56:07,313 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:07,313 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 89 treesize of output 89 [2024-11-22 18:56:07,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 25 treesize of output 13 [2024-11-22 18:56:07,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:07,623 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:56:07,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2024-11-22 18:56:08,177 INFO L349 Elim1Store]: treesize reduction 5, result has 80.8 percent of original size [2024-11-22 18:56:08,177 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 74 treesize of output 73 [2024-11-22 18:56:08,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:08,323 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 39 treesize of output 39 [2024-11-22 18:56:11,678 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:11,678 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 1 case distinctions, treesize of input 53 treesize of output 45 [2024-11-22 18:56:11,681 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:56:11,681 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:56:11,688 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:11,688 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 51 treesize of output 47 [2024-11-22 18:56:11,696 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:11,697 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 27 treesize of output 29 [2024-11-22 18:56:11,710 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-22 18:56:11,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 12 [2024-11-22 18:56:11,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:11,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079676164] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:56:11,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:56:11,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 18] total 42 [2024-11-22 18:56:11,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901533431] [2024-11-22 18:56:11,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:56:11,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-22 18:56:11,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:11,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-22 18:56:11,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1590, Unknown=31, NotChecked=0, Total=1806 [2024-11-22 18:56:11,854 INFO L87 Difference]: Start difference. First operand 175 states and 211 transitions. Second operand has 43 states, 42 states have (on average 2.238095238095238) internal successors, (94), 43 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:18,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-11-22 18:56:19,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:19,099 INFO L93 Difference]: Finished difference Result 322 states and 375 transitions. [2024-11-22 18:56:19,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-22 18:56:19,100 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 2.238095238095238) internal successors, (94), 43 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-22 18:56:19,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:19,101 INFO L225 Difference]: With dead ends: 322 [2024-11-22 18:56:19,101 INFO L226 Difference]: Without dead ends: 322 [2024-11-22 18:56:19,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 52 SyntacticMatches, 3 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1437 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=611, Invalid=4464, Unknown=37, NotChecked=0, Total=5112 [2024-11-22 18:56:19,102 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 614 mSDsluCounter, 1283 mSDsCounter, 0 mSdLazyCounter, 2322 mSolverCounterSat, 67 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 2413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2322 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:19,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 1351 Invalid, 2413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2322 Invalid, 24 Unknown, 0 Unchecked, 5.8s Time] [2024-11-22 18:56:19,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-22 18:56:19,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 236. [2024-11-22 18:56:19,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 203 states have (on average 1.458128078817734) internal successors, (296), 234 states have internal predecessors, (296), 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) [2024-11-22 18:56:19,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 298 transitions. [2024-11-22 18:56:19,109 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 298 transitions. Word has length 37 [2024-11-22 18:56:19,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:19,109 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 298 transitions. [2024-11-22 18:56:19,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 2.238095238095238) internal successors, (94), 43 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:19,110 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 298 transitions. [2024-11-22 18:56:19,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-22 18:56:19,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:19,110 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:19,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 18:56:19,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-22 18:56:19,315 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:19,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:19,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1044275573, now seen corresponding path program 1 times [2024-11-22 18:56:19,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:19,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462305051] [2024-11-22 18:56:19,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:19,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:20,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:20,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:20,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462305051] [2024-11-22 18:56:20,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462305051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:56:20,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823929177] [2024-11-22 18:56:20,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:20,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:20,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:20,253 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) [2024-11-22 18:56:20,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 18:56:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:20,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-22 18:56:20,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:56:20,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 18:56:20,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 18:56:20,413 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 23 treesize of output 11 [2024-11-22 18:56:20,423 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-22 18:56:20,423 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 [2024-11-22 18:56:20,451 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 23 treesize of output 11 [2024-11-22 18:56:20,460 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 18:56:20,493 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 16 treesize of output 8 [2024-11-22 18:56:20,564 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 16 treesize of output 11 [2024-11-22 18:56:20,575 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 16 treesize of output 11 [2024-11-22 18:56:20,589 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-22 18:56:20,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2024-11-22 18:56:20,625 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 16 treesize of output 11 [2024-11-22 18:56:20,632 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 18:56:20,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 16 treesize of output 8 [2024-11-22 18:56:20,725 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 16 treesize of output 11 [2024-11-22 18:56:20,734 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 16 treesize of output 11 [2024-11-22 18:56:20,742 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 16 treesize of output 11 [2024-11-22 18:56:20,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-22 18:56:20,820 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 18:56:20,820 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 [2024-11-22 18:56:20,878 INFO L349 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2024-11-22 18:56:20,878 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 25 treesize of output 32 [2024-11-22 18:56:20,997 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:20,997 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 13 treesize of output 17 [2024-11-22 18:56:21,187 INFO L349 Elim1Store]: treesize reduction 76, result has 52.2 percent of original size [2024-11-22 18:56:21,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 119 [2024-11-22 18:56:21,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:21,354 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 18:56:21,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823929177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 18:56:21,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 18:56:21,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [17] total 35 [2024-11-22 18:56:21,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090897104] [2024-11-22 18:56:21,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 18:56:21,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-22 18:56:21,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:21,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-22 18:56:21,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1064, Unknown=0, NotChecked=0, Total=1190 [2024-11-22 18:56:21,356 INFO L87 Difference]: Start difference. First operand 236 states and 298 transitions. Second operand has 20 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:22,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:22,191 INFO L93 Difference]: Finished difference Result 368 states and 454 transitions. [2024-11-22 18:56:22,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-22 18:56:22,191 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2024-11-22 18:56:22,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:22,192 INFO L225 Difference]: With dead ends: 368 [2024-11-22 18:56:22,192 INFO L226 Difference]: Without dead ends: 365 [2024-11-22 18:56:22,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=264, Invalid=1992, Unknown=0, NotChecked=0, Total=2256 [2024-11-22 18:56:22,193 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 392 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:22,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 574 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 18:56:22,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-22 18:56:22,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 273. [2024-11-22 18:56:22,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 240 states have (on average 1.4125) internal successors, (339), 271 states have internal predecessors, (339), 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) [2024-11-22 18:56:22,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 341 transitions. [2024-11-22 18:56:22,197 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 341 transitions. Word has length 37 [2024-11-22 18:56:22,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:22,198 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 341 transitions. [2024-11-22 18:56:22,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.85) internal successors, (37), 20 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:22,198 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 341 transitions. [2024-11-22 18:56:22,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-22 18:56:22,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:22,198 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:22,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 18:56:22,402 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,SelfDestructingSolverStorable15 [2024-11-22 18:56:22,403 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:22,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:22,403 INFO L85 PathProgramCache]: Analyzing trace with hash 2023301339, now seen corresponding path program 1 times [2024-11-22 18:56:22,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:22,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969530295] [2024-11-22 18:56:22,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:22,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:22,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:22,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:22,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969530295] [2024-11-22 18:56:22,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969530295] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:56:22,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46854307] [2024-11-22 18:56:22,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:22,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:22,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:22,978 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) [2024-11-22 18:56:22,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 18:56:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:23,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-22 18:56:23,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:56:23,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 18:56:23,121 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-22 18:56:23,121 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 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-22 18:56:23,153 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 18:56:23,187 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 16 treesize of output 11 [2024-11-22 18:56:23,200 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 16 treesize of output 11 [2024-11-22 18:56:23,215 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-22 18:56:23,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 11 treesize of output 11 [2024-11-22 18:56:23,228 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 11 [2024-11-22 18:56:23,336 INFO L349 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2024-11-22 18:56:23,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 44 [2024-11-22 18:56:23,344 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 12 treesize of output 8 [2024-11-22 18:56:23,402 INFO L349 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2024-11-22 18:56:23,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 51 [2024-11-22 18:56:23,440 INFO L349 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2024-11-22 18:56:23,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 51 [2024-11-22 18:56:23,471 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 16 treesize of output 12 [2024-11-22 18:56:23,538 INFO L349 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2024-11-22 18:56:23,539 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 31 treesize of output 32 [2024-11-22 18:56:23,670 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:23,670 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 32 treesize of output 16 [2024-11-22 18:56:23,683 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 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-22 18:56:23,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:23,686 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:56:24,162 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:24,162 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 61 treesize of output 65 [2024-11-22 18:56:24,496 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:24,496 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 34 treesize of output 34 [2024-11-22 18:56:24,515 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:24,516 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 17 treesize of output 21 [2024-11-22 18:56:24,533 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:24,534 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 16 treesize of output 20 [2024-11-22 18:56:24,973 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~bcki~0#1.offset| Int) (|v_ULTIMATE.start_main_~bcki~0#1.offset_60| Int) (v_ArrVal_1116 (Array Int Int)) (v_prenex_3 Int) (v_arrayElimArr_3 (Array Int Int)) (v_prenex_4 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem3#1.base| v_arrayElimArr_3)) (.cse1 (select v_arrayElimArr_3 |ULTIMATE.start_main_~bcki~0#1.offset|))) (or (< v_prenex_3 0) (= |c_ULTIMATE.start_main_#t~mem3#1.base| (select (select (store .cse0 .cse1 v_ArrVal_1116) |c_ULTIMATE.start_main_~bucket~0#1.base|) |v_ULTIMATE.start_main_~bcki~0#1.offset_60|)) (not (= (select (select (store .cse0 .cse1 v_prenex_4) |c_ULTIMATE.start_main_~bucket~0#1.base|) v_prenex_3) |c_ULTIMATE.start_main_~bucket~0#1.base|)) (not (= (select |c_#valid| .cse1) 0)) (< |c_ULTIMATE.start_main_~bucket~0#1.offset| v_prenex_3)))) (forall ((|ULTIMATE.start_main_~bcki~0#1.offset| Int) (v_prenex_3 Int) (v_arrayElimArr_4 (Array Int Int)) (v_prenex_4 (Array Int Int))) (let ((.cse2 (select v_arrayElimArr_4 |ULTIMATE.start_main_~bcki~0#1.offset|))) (or (not (= (select |c_#valid| .cse2) 0)) (< v_prenex_3 0) (not (= (select (select (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem3#1.base| v_arrayElimArr_4) .cse2 v_prenex_4) |c_ULTIMATE.start_main_~bucket~0#1.base|) v_prenex_3) |c_ULTIMATE.start_main_~bucket~0#1.base|)) (< |c_ULTIMATE.start_main_~bucket~0#1.offset| v_prenex_3)))) (forall ((v_arrayElimArr_5 (Array Int Int)) (|ULTIMATE.start_main_~bcki~0#1.offset| Int) (|v_ULTIMATE.start_main_~bcki~0#1.offset_60| Int) (v_ArrVal_1116 (Array Int Int))) (let ((.cse3 (select v_arrayElimArr_5 |ULTIMATE.start_main_~bcki~0#1.offset|))) (or (< |v_ULTIMATE.start_main_~bcki~0#1.offset_60| 0) (= |c_ULTIMATE.start_main_#t~mem3#1.base| (select (select (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem3#1.base| v_arrayElimArr_5) .cse3 v_ArrVal_1116) |c_ULTIMATE.start_main_~bucket~0#1.base|) |v_ULTIMATE.start_main_~bcki~0#1.offset_60|)) (not (= (select |c_#valid| .cse3) 0)) (< |c_ULTIMATE.start_main_~bucket~0#1.offset| |v_ULTIMATE.start_main_~bcki~0#1.offset_60|))))) is different from false [2024-11-22 18:56:25,010 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bucket~0#1.base|) |c_ULTIMATE.start_main_~bucket~0#1.offset|))) (and (forall ((|ULTIMATE.start_main_~bcki~0#1.offset| Int) (|v_ULTIMATE.start_main_~bcki~0#1.offset_60| Int) (v_ArrVal_1116 (Array Int Int)) (v_prenex_3 Int) (v_arrayElimArr_3 (Array Int Int)) (v_prenex_4 (Array Int Int))) (let ((.cse1 (store |c_#memory_$Pointer$#1.base| .cse0 v_arrayElimArr_3)) (.cse2 (select v_arrayElimArr_3 |ULTIMATE.start_main_~bcki~0#1.offset|))) (or (< v_prenex_3 0) (= .cse0 (select (select (store .cse1 .cse2 v_ArrVal_1116) |c_ULTIMATE.start_main_~bucket~0#1.base|) |v_ULTIMATE.start_main_~bcki~0#1.offset_60|)) (not (= (select (select (store .cse1 .cse2 v_prenex_4) |c_ULTIMATE.start_main_~bucket~0#1.base|) v_prenex_3) |c_ULTIMATE.start_main_~bucket~0#1.base|)) (not (= (select |c_#valid| .cse2) 0)) (< |c_ULTIMATE.start_main_~bucket~0#1.offset| v_prenex_3)))) (forall ((v_arrayElimArr_5 (Array Int Int)) (|ULTIMATE.start_main_~bcki~0#1.offset| Int) (|v_ULTIMATE.start_main_~bcki~0#1.offset_60| Int) (v_ArrVal_1116 (Array Int Int))) (let ((.cse3 (select v_arrayElimArr_5 |ULTIMATE.start_main_~bcki~0#1.offset|))) (or (< |v_ULTIMATE.start_main_~bcki~0#1.offset_60| 0) (= .cse0 (select (select (store (store |c_#memory_$Pointer$#1.base| .cse0 v_arrayElimArr_5) .cse3 v_ArrVal_1116) |c_ULTIMATE.start_main_~bucket~0#1.base|) |v_ULTIMATE.start_main_~bcki~0#1.offset_60|)) (not (= (select |c_#valid| .cse3) 0)) (< |c_ULTIMATE.start_main_~bucket~0#1.offset| |v_ULTIMATE.start_main_~bcki~0#1.offset_60|)))) (forall ((|ULTIMATE.start_main_~bcki~0#1.offset| Int) (v_prenex_3 Int) (v_arrayElimArr_4 (Array Int Int)) (v_prenex_4 (Array Int Int))) (let ((.cse4 (select v_arrayElimArr_4 |ULTIMATE.start_main_~bcki~0#1.offset|))) (or (not (= (select (select (store (store |c_#memory_$Pointer$#1.base| .cse0 v_arrayElimArr_4) .cse4 v_prenex_4) |c_ULTIMATE.start_main_~bucket~0#1.base|) v_prenex_3) |c_ULTIMATE.start_main_~bucket~0#1.base|)) (not (= (select |c_#valid| .cse4) 0)) (< v_prenex_3 0) (< |c_ULTIMATE.start_main_~bucket~0#1.offset| v_prenex_3)))))) is different from false [2024-11-22 18:56:25,062 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:25,062 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 23 treesize of output 24 [2024-11-22 18:56:25,064 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:56:25,070 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:25,070 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 30 [2024-11-22 18:56:25,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:25,077 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 18 treesize of output 22 [2024-11-22 18:56:25,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:25,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 48 treesize of output 40 [2024-11-22 18:56:25,105 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:56:25,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:25,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 66 [2024-11-22 18:56:25,149 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:25,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 56 [2024-11-22 18:56:25,253 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:25,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 24 treesize of output 25 [2024-11-22 18:56:25,256 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-22 18:56:25,265 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:25,265 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33 [2024-11-22 18:56:25,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:25,274 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 29 treesize of output 33 [2024-11-22 18:56:25,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:25,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46854307] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:56:25,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:56:25,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18, 17] total 37 [2024-11-22 18:56:25,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379159715] [2024-11-22 18:56:25,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:56:25,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-22 18:56:25,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:25,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-22 18:56:25,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1092, Unknown=36, NotChecked=138, Total=1406 [2024-11-22 18:56:25,689 INFO L87 Difference]: Start difference. First operand 273 states and 341 transitions. Second operand has 38 states, 37 states have (on average 2.3783783783783785) internal successors, (88), 38 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:26,399 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bcki~0#1.base|))) (let ((.cse0 (< |c_ULTIMATE.start_main_~bucket~0#1.offset| 0)) (.cse2 (not (= (select |c_#valid| |c_ULTIMATE.start_main_~bucket~0#1.base|) 0))) (.cse1 (store |c_#valid| |c_ULTIMATE.start_main_~bucket~0#1.base| 1)) (.cse4 (+ |c_ULTIMATE.start_main_~bcki~0#1.offset| 4)) (.cse8 (< |c_ULTIMATE.start_main_~bucket~0#1.offset| 1)) (.cse10 (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bucket~0#1.base|)) (.cse5 (select .cse3 |c_ULTIMATE.start_main_~bcki~0#1.offset|))) (and (or .cse0 (forall ((v_arrayElimCell_80 Int)) (not (= (select .cse1 v_arrayElimCell_80) 0))) .cse2) (= (select .cse3 .cse4) 0) (or (forall ((v_arrayElimCell_85 Int)) (not (= (select .cse1 v_arrayElimCell_85) 0))) .cse0 .cse2) (not (= .cse5 |c_ULTIMATE.start_main_~bucket~0#1.base|)) (or .cse0 .cse2 (forall ((v_arrayElimCell_89 Int)) (not (= (select .cse1 v_arrayElimCell_89) 0)))) (= (select |c_#valid| .cse5) 1) (or (let ((.cse6 (select .cse3 0))) (and (not (= .cse6 |c_ULTIMATE.start_main_~bcki~0#1.base|)) (= (select |c_#valid| .cse6) 1))) (and (exists ((v_arrayElimCell_71 Int)) (and (not (= |c_ULTIMATE.start_main_~bcki~0#1.base| v_arrayElimCell_71)) (= (select |c_#valid| v_arrayElimCell_71) 1))) (= .cse4 0))) (= (select |c_#valid| |c_ULTIMATE.start_main_~bcki~0#1.base|) 1) (or (forall ((v_arrayElimCell_80 Int) (|v_ULTIMATE.start_main_#t~malloc2#1.base_13| Int) (v_ArrVal_1107 Int)) (let ((.cse7 (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc2#1.base_13| v_ArrVal_1107))) (or (not (= (select .cse7 |c_ULTIMATE.start_main_~bucket~0#1.base|) 1)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc2#1.base_13|) 0)) (not (= (select .cse7 v_arrayElimCell_80) 0))))) .cse8) (or (forall ((|v_ULTIMATE.start_main_#t~malloc2#1.base_13| Int) (v_ArrVal_1107 Int) (v_arrayElimCell_89 Int)) (let ((.cse9 (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc2#1.base_13| v_ArrVal_1107))) (or (not (= (select .cse9 |c_ULTIMATE.start_main_~bucket~0#1.base|) 1)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc2#1.base_13|) 0)) (not (= (select .cse9 v_arrayElimCell_89) 0))))) .cse8) (= |c_ULTIMATE.start_main_~bcki~0#1.base| |c_ULTIMATE.start_main_~bucket~0#1.base|) (<= |c_ULTIMATE.start_main_~bcki~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~bcki~0#1.offset_60| Int)) (or (< |v_ULTIMATE.start_main_~bcki~0#1.offset_60| 0) (= (select |c_#valid| (select .cse10 |v_ULTIMATE.start_main_~bcki~0#1.offset_60|)) 1) (< |c_ULTIMATE.start_main_~bucket~0#1.offset| |v_ULTIMATE.start_main_~bcki~0#1.offset_60|))) (forall ((|v_ULTIMATE.start_main_~bcki~0#1.offset_60| Int) (v_ArrVal_1116 (Array Int Int))) (or (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| .cse5 v_ArrVal_1116) |c_ULTIMATE.start_main_~bucket~0#1.base|) |v_ULTIMATE.start_main_~bcki~0#1.offset_60|)) 1) (< |v_ULTIMATE.start_main_~bcki~0#1.offset_60| 0) (< |c_ULTIMATE.start_main_~bucket~0#1.offset| |v_ULTIMATE.start_main_~bcki~0#1.offset_60|))) (or (forall ((v_arrayElimCell_85 Int) (|v_ULTIMATE.start_main_#t~malloc2#1.base_13| Int) (v_ArrVal_1107 Int)) (let ((.cse11 (store |c_#valid| |v_ULTIMATE.start_main_#t~malloc2#1.base_13| v_ArrVal_1107))) (or (not (= (select .cse11 |c_ULTIMATE.start_main_~bucket~0#1.base|) 1)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc2#1.base_13|) 0)) (not (= (select .cse11 v_arrayElimCell_85) 0))))) .cse8) (not (= .cse5 |c_ULTIMATE.start_main_~bcki~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~bcki~0#1.offset_60| Int)) (or (< |v_ULTIMATE.start_main_~bcki~0#1.offset_60| 0) (not (= (select .cse10 |v_ULTIMATE.start_main_~bcki~0#1.offset_60|) |c_ULTIMATE.start_main_~bucket~0#1.base|)) (< |c_ULTIMATE.start_main_~bucket~0#1.offset| |v_ULTIMATE.start_main_~bcki~0#1.offset_60|))) (forall ((|v_ULTIMATE.start_main_~bcki~0#1.offset_60| Int) (v_ArrVal_1116 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~bcki~0#1.offset_60| 0) (< |c_ULTIMATE.start_main_~bucket~0#1.offset| |v_ULTIMATE.start_main_~bcki~0#1.offset_60|) (not (= (select (select (store |c_#memory_$Pointer$#1.base| .cse5 v_ArrVal_1116) |c_ULTIMATE.start_main_~bucket~0#1.base|) |v_ULTIMATE.start_main_~bcki~0#1.offset_60|) |c_ULTIMATE.start_main_~bucket~0#1.base|))))))) is different from false [2024-11-22 18:56:27,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:27,074 INFO L93 Difference]: Finished difference Result 287 states and 353 transitions. [2024-11-22 18:56:27,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 18:56:27,074 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.3783783783783785) internal successors, (88), 38 states have internal predecessors, (88), 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 38 [2024-11-22 18:56:27,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:27,075 INFO L225 Difference]: With dead ends: 287 [2024-11-22 18:56:27,075 INFO L226 Difference]: Without dead ends: 287 [2024-11-22 18:56:27,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 58 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=271, Invalid=1774, Unknown=37, NotChecked=270, Total=2352 [2024-11-22 18:56:27,076 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 173 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 1813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 315 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:27,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 982 Invalid, 1813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1464 Invalid, 0 Unknown, 315 Unchecked, 1.1s Time] [2024-11-22 18:56:27,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-22 18:56:27,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 283. [2024-11-22 18:56:27,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 250 states have (on average 1.404) internal successors, (351), 281 states have internal predecessors, (351), 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) [2024-11-22 18:56:27,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 353 transitions. [2024-11-22 18:56:27,081 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 353 transitions. Word has length 38 [2024-11-22 18:56:27,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:27,081 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 353 transitions. [2024-11-22 18:56:27,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.3783783783783785) internal successors, (88), 38 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:27,081 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 353 transitions. [2024-11-22 18:56:27,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-22 18:56:27,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:27,082 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:27,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 18:56:27,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:27,286 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:27,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:27,286 INFO L85 PathProgramCache]: Analyzing trace with hash 2023301340, now seen corresponding path program 1 times [2024-11-22 18:56:27,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:27,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078976953] [2024-11-22 18:56:27,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:27,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:27,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:27,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:27,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078976953] [2024-11-22 18:56:27,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078976953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:56:27,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864534963] [2024-11-22 18:56:27,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:27,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:27,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:27,970 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) [2024-11-22 18:56:27,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 18:56:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:28,077 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-22 18:56:28,081 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:56:28,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 18:56:28,102 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-22 18:56:28,103 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 [2024-11-22 18:56:28,109 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 8 treesize of output 1 [2024-11-22 18:56:28,135 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 18:56:28,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 18:56:28,244 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 18:56:28,244 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 [2024-11-22 18:56:28,260 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-22 18:56:28,260 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 33 treesize of output 24 [2024-11-22 18:56:28,316 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-22 18:56:28,317 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 33 treesize of output 24 [2024-11-22 18:56:28,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:56:28,328 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 16 treesize of output 11 [2024-11-22 18:56:28,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:56:28,351 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-22 18:56:28,351 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 [2024-11-22 18:56:28,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 18 treesize of output 13 [2024-11-22 18:56:28,409 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 18:56:28,409 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 1 case distinctions, treesize of input 16 treesize of output 15 [2024-11-22 18:56:28,431 INFO L349 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2024-11-22 18:56:28,432 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 40 treesize of output 20 [2024-11-22 18:56:28,581 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 18:56:28,581 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 [2024-11-22 18:56:28,603 INFO L349 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2024-11-22 18:56:28,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 48 [2024-11-22 18:56:28,651 INFO L349 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2024-11-22 18:56:28,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 48 [2024-11-22 18:56:28,670 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 18:56:28,670 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 [2024-11-22 18:56:28,716 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2024-11-22 18:56:28,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 69 [2024-11-22 18:56:28,721 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 32 treesize of output 11 [2024-11-22 18:56:28,881 INFO L349 Elim1Store]: treesize reduction 54, result has 28.0 percent of original size [2024-11-22 18:56:28,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 50 [2024-11-22 18:56:28,907 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2024-11-22 18:56:28,907 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 27 treesize of output 17 [2024-11-22 18:56:29,074 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-22 18:56:29,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 27 [2024-11-22 18:56:29,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2024-11-22 18:56:29,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:29,136 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:56:29,672 WARN L851 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~bcki~0#1.offset| Int) (|v_ULTIMATE.start_main_~bcki~0#1.offset_67| Int) (v_ArrVal_1264 (Array Int Int)) (v_ArrVal_1272 (Array Int Int)) (v_ArrVal_1271 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~bcki~0#1.offset_67| 0) (< (+ 7 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bcki~0#1.base| v_ArrVal_1264) |c_ULTIMATE.start_main_#t~malloc4#1.base| v_ArrVal_1271) |c_ULTIMATE.start_main_~bucket~0#1.base|) |v_ULTIMATE.start_main_~bcki~0#1.offset_67|)) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bcki~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~bcki~0#1.base|) |ULTIMATE.start_main_~bcki~0#1.offset| |c_ULTIMATE.start_main_#t~malloc4#1.base|)) |c_ULTIMATE.start_main_#t~malloc4#1.base| v_ArrVal_1272) |c_ULTIMATE.start_main_~bucket~0#1.base|) |v_ULTIMATE.start_main_~bcki~0#1.offset_67|))) (< |c_ULTIMATE.start_main_~bucket~0#1.offset| |v_ULTIMATE.start_main_~bcki~0#1.offset_67|))) (forall ((|v_ULTIMATE.start_main_~bcki~0#1.offset_67| Int) (v_ArrVal_1264 (Array Int Int)) (v_ArrVal_1271 (Array Int Int))) (or (< |v_ULTIMATE.start_main_~bcki~0#1.offset_67| 0) (< |c_ULTIMATE.start_main_~bucket~0#1.offset| |v_ULTIMATE.start_main_~bcki~0#1.offset_67|) (< 0 (+ 5 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~bcki~0#1.base| v_ArrVal_1264) |c_ULTIMATE.start_main_#t~malloc4#1.base| v_ArrVal_1271) |c_ULTIMATE.start_main_~bucket~0#1.base|) |v_ULTIMATE.start_main_~bcki~0#1.offset_67|)))))) is different from false [2024-11-22 18:56:29,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:29,798 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 33 treesize of output 37 [2024-11-22 18:56:32,255 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:32,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 104 treesize of output 97 [2024-11-22 18:56:32,264 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:32,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 88 treesize of output 89 [2024-11-22 18:56:32,282 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:32,283 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 196 treesize of output 196 [2024-11-22 18:56:32,306 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:32,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 542 treesize of output 542 [2024-11-22 18:56:32,324 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:32,324 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 181 treesize of output 170 [2024-11-22 18:56:32,331 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 161 treesize of output 157 [2024-11-22 18:56:32,337 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 157 treesize of output 153 [2024-11-22 18:56:32,344 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 153 treesize of output 151 [2024-11-22 18:56:32,397 INFO L349 Elim1Store]: treesize reduction 8, result has 83.7 percent of original size [2024-11-22 18:56:32,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 164 treesize of output 196 [2024-11-22 18:56:32,410 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 147 treesize of output 143 [2024-11-22 18:56:32,417 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 143 treesize of output 141 [2024-11-22 18:56:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:33,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864534963] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:56:33,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:56:33,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16, 16] total 44 [2024-11-22 18:56:33,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254025697] [2024-11-22 18:56:33,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:56:33,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-22 18:56:33,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:56:33,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-22 18:56:33,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1671, Unknown=18, NotChecked=84, Total=1980 [2024-11-22 18:56:33,043 INFO L87 Difference]: Start difference. First operand 283 states and 353 transitions. Second operand has 45 states, 44 states have (on average 2.522727272727273) internal successors, (111), 45 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:37,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 18:56:41,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 18:56:45,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 18:56:49,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 18:56:51,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 18:56:51,676 INFO L93 Difference]: Finished difference Result 318 states and 393 transitions. [2024-11-22 18:56:51,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-22 18:56:51,677 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 2.522727272727273) internal successors, (111), 45 states have internal predecessors, (111), 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 38 [2024-11-22 18:56:51,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 18:56:51,678 INFO L225 Difference]: With dead ends: 318 [2024-11-22 18:56:51,678 INFO L226 Difference]: Without dead ends: 318 [2024-11-22 18:56:51,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1046 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=400, Invalid=3122, Unknown=22, NotChecked=116, Total=3660 [2024-11-22 18:56:51,679 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 175 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 43 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 161 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2024-11-22 18:56:51,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1137 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1614 Invalid, 14 Unknown, 161 Unchecked, 17.5s Time] [2024-11-22 18:56:51,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-22 18:56:51,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 303. [2024-11-22 18:56:51,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 273 states have (on average 1.3992673992673992) internal successors, (382), 301 states have internal predecessors, (382), 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) [2024-11-22 18:56:51,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 384 transitions. [2024-11-22 18:56:51,683 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 384 transitions. Word has length 38 [2024-11-22 18:56:51,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 18:56:51,683 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 384 transitions. [2024-11-22 18:56:51,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 2.522727272727273) internal successors, (111), 45 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:56:51,684 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 384 transitions. [2024-11-22 18:56:51,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-22 18:56:51,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 18:56:51,684 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 18:56:51,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 18:56:51,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-22 18:56:51,884 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2024-11-22 18:56:51,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 18:56:51,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1938171604, now seen corresponding path program 1 times [2024-11-22 18:56:51,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 18:56:51,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735546584] [2024-11-22 18:56:51,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:51,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 18:56:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:52,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:52,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 18:56:52,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735546584] [2024-11-22 18:56:52,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735546584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 18:56:52,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867130246] [2024-11-22 18:56:52,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 18:56:52,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 18:56:52,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 18:56:52,661 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) [2024-11-22 18:56:52,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 18:56:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 18:56:52,770 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-22 18:56:52,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 18:56:52,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-22 18:56:52,791 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-22 18:56:52,791 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 [2024-11-22 18:56:52,794 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 8 treesize of output 1 [2024-11-22 18:56:52,821 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-22 18:56:52,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-22 18:56:52,942 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-22 18:56:52,943 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 33 treesize of output 24 [2024-11-22 18:56:52,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:56:52,953 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 16 treesize of output 11 [2024-11-22 18:56:52,992 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-22 18:56:52,993 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 33 treesize of output 24 [2024-11-22 18:56:53,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:56:53,001 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 16 treesize of output 11 [2024-11-22 18:56:53,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:56:53,022 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-22 18:56:53,022 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 [2024-11-22 18:56:53,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 18 treesize of output 13 [2024-11-22 18:56:53,078 INFO L349 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2024-11-22 18:56:53,078 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 40 treesize of output 20 [2024-11-22 18:56:53,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-22 18:56:53,088 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 16 treesize of output 11 [2024-11-22 18:56:53,270 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 18:56:53,270 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 [2024-11-22 18:56:53,290 INFO L349 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2024-11-22 18:56:53,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 55 [2024-11-22 18:56:53,354 INFO L349 Elim1Store]: treesize reduction 40, result has 21.6 percent of original size [2024-11-22 18:56:53,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 55 [2024-11-22 18:56:53,371 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 18:56:53,372 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 [2024-11-22 18:56:53,424 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2024-11-22 18:56:53,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 76 [2024-11-22 18:56:53,428 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 32 treesize of output 11 [2024-11-22 18:56:53,510 INFO L349 Elim1Store]: treesize reduction 21, result has 44.7 percent of original size [2024-11-22 18:56:53,510 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 18 treesize of output 21 [2024-11-22 18:56:53,519 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2024-11-22 18:56:53,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 15 treesize of output 15 [2024-11-22 18:56:53,583 INFO L349 Elim1Store]: treesize reduction 36, result has 29.4 percent of original size [2024-11-22 18:56:53,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 47 [2024-11-22 18:56:53,593 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 36 treesize of output 26 [2024-11-22 18:56:53,618 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 18:56:53,619 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 [2024-11-22 18:56:53,780 INFO L349 Elim1Store]: treesize reduction 44, result has 50.0 percent of original size [2024-11-22 18:56:53,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 99 [2024-11-22 18:56:53,800 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-22 18:56:53,800 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 20 treesize of output 19 [2024-11-22 18:56:53,831 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-22 18:56:54,036 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 36 treesize of output 26 [2024-11-22 18:56:54,052 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 5 treesize of output 3 [2024-11-22 18:56:54,146 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 60 treesize of output 50 [2024-11-22 18:56:56,488 INFO L349 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2024-11-22 18:56:56,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 132 treesize of output 111 [2024-11-22 18:56:56,493 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 84 treesize of output 76 [2024-11-22 18:56:56,526 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 15 treesize of output 11 [2024-11-22 18:56:56,533 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 15 treesize of output 11 [2024-11-22 18:56:56,634 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 15 treesize of output 11 [2024-11-22 18:56:56,678 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:56,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 111 treesize of output 105 [2024-11-22 18:56:56,867 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:56:56,867 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 18:56:58,288 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:56:58,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 119 treesize of output 137 [2024-11-22 18:57:08,402 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:57:08,402 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 42 treesize of output 46 [2024-11-22 18:57:18,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:57:18,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 156 treesize of output 157 [2024-11-22 18:57:18,834 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:57:18,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 148 treesize of output 141 [2024-11-22 18:57:18,848 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:57:18,848 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 793 treesize of output 789 [2024-11-22 18:57:18,889 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:57:18,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 4316 treesize of output 4264 [2024-11-22 18:57:18,928 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:57:18,928 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 425 treesize of output 396 [2024-11-22 18:57:18,938 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 387 treesize of output 383 [2024-11-22 18:57:18,947 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 383 treesize of output 379 [2024-11-22 18:57:18,957 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 379 treesize of output 377 [2024-11-22 18:57:18,966 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 377 treesize of output 369 [2024-11-22 18:57:18,975 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 369 treesize of output 361 [2024-11-22 18:57:19,051 INFO L349 Elim1Store]: treesize reduction 8, result has 83.7 percent of original size [2024-11-22 18:57:19,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 374 treesize of output 406 [2024-11-22 18:57:19,075 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 357 treesize of output 353 [2024-11-22 18:57:19,086 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 353 treesize of output 351 [2024-11-22 18:57:19,098 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 351 treesize of output 343 [2024-11-22 18:57:21,942 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-22 18:57:21,943 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 4367 treesize of output 4296 [2024-11-22 18:57:22,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 18:57:22,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867130246] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 18:57:22,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 18:57:22,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 19] total 52 [2024-11-22 18:57:22,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125839845] [2024-11-22 18:57:22,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 18:57:22,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-22 18:57:22,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 18:57:22,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-22 18:57:22,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=2497, Unknown=25, NotChecked=0, Total=2756 [2024-11-22 18:57:22,185 INFO L87 Difference]: Start difference. First operand 303 states and 384 transitions. Second operand has 53 states, 52 states have (on average 2.1346153846153846) internal successors, (111), 53 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 18:57:26,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-22 18:57:30,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]